Trailblazer electric fan conversion

9. Remove 2 10mm bolts on the top left and right side of the fan shroud. 10. Remove plastic flaps on bottom left and right side of the fan shroud. [From underneath the truck] Pull outward and then push up. 11. Unclip transmission hard lines from the back passender side of the fan shroud. 12.

Trailblazer Fan Kits. We offer two electric fan kits. They also support the 5.3L version of the Trailblazer, as well as 5.3L GMC/Saab GMT360 platform. All of our kits are three relay kits – which means they will bring …Electric fans draw quite a bit of power depending on size. Typically 10-15 amps. Since the one on my TR3 is the only fan I have, I opted for a large cfm fan, and it draws about 15 amps when it's running. Since the generator is only rated for about 22 amps, there definitely could be times when when the poor little generator will become taxed.04 silverado Elec fan conversion trouble; Page 1 of 2 1 2 Last. Jump to page: Results 1 to 20 of 26 Thread: 04 silverado Elec fan conversion trouble. Thread Tools. Show Printable Version; ... 2002 TrailBlazer LT 4WD 4.2L I6, lifted, tires, exhaust, SE22 Performance tuned. 04-06-2017 #3. Jason B. View Profile View Forum PostsElectrics draw a good 40 amps and that energy has to come from the alternator. Alternators and electric motors both have conversion loss in efficiency. Its more efficient to have a properly working fan clutch letting the fan practically idle on the end of it. Its direct energy conversion vs multiple stages.Otherwise change the factory fan desired %’s for the electric install. Also, the EV fan we have can be programmed to come on sooner and improve the AC. Yes, you will roar away from lights with the EV fan programmed like this, but it works a lot better for cold AC in 120 degree weather. MPG would go down doing that. (The factory late EV fan ...May 11, 2011. #1. THIS CONVERSION IS ON A 2001 V8 3.9 LS . I bought a Flex-a-Lite series 160 fan for the conversion. The fan is 16", 3000 CFM and draws only 19.5 amps. This fan in size is identical to a cheaper model 168. The difference is the 160 has a controller unit included with it. This fan fits perfectly inside the ORIGINAL SHROUD on the ...Soft start ramp up prevents amp spikes. This is strictly a puller fan and is not reversible. Specs:-4200 CFM-Brushless Motor; 15 AMP Draw per Fan-Reinforced Glass-Filled Polypropylene Blades-Soft Start Eliminates Amp Spikes-Comes Assembled. Note:-Not compatible with variable speed fan controllers using PWM technology.

Huge thanks to Kelly from PCMofNC, she's been a huge help :D I got their tune, which is insane, and installed their Electric fan conversion kit which is well...Jun 12, 2007 · The reason people add a wire and pin to the factory plug is to get a secondary control for fan two. Some LS1 kits run both fans off the original control wire that was used for the mechanical fan. (tuning required) Some kits run the first fan off the original wire and the second fan off the newly added pin mentioned above. (tuning required also).Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs. 07-19-2008 #10. MattD. View Profile View Forum Posts Private Message Visit Homepage Tuner in Training Join Date Jun 2008 Location Lex Vegas, KY ...Nov 19, 2022 · 5340 posts · Joined 2009. #9 · Nov 19, 2022. OP, if I recall the thread correctly, the cost of the mystery "black box" is about the cost of a decent electronic fan clutch that comes with at least a 2 year warranty. I'm not sure what you'll do if the "black box" goes wonky. My solution is to go to rockauto.com and order the Dorman electronic ...Guy's, I could not find any info for the questions that I have. I bought the aluminum shroud from Mighty Mouse TBSS E-fan Shroud / Harness | mmsolutions I also ordered two of the SPAL 30102044 fans SPAL 30102044 SPAL Electric Fan.I have been looking at the PWM controllers and was wondering if there were any out there that I …

This conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans. Converting to electric fans has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG. This kit features three relays, which allows for quieter operation.This conversion eliminates the power robbing stock electro-viscous fan and replaces it with two computer controlled electric fans. Each fan is independently controlled by the PCM. These HD fans are suited to highly modified set ups (stroker, forced induction, or a hot climate).Fan trailblazer clutch electric radiator install. For 2003-2006 chevrolet trailblazer ext engine cooling fan 34512xk 2004Fan clutch trailblazer cargurus helpful found people Fan trouble shooting| repair guides. Trailblazer fanRepair guides P0526 (cooling fan speed sensor circuit).The reason people started using the Contour (dual V6) fan is because it is a quality factory part that fit the Jeep radiator very well. Factory parts like a radiator fan need to be made well. If Ford has a series of fan failures under warranty, they have to replace any parts that are damaged by that failure.

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In Taibao City, at the moment, the sky is moderately clouded. The temperature is a hot 30°C (86°F), while the felt air temperature, which combines air temperature and relative humidity, is evaluated at a tropical 34°C (93.2°F).ELECTRIC FAN CONVERSION: Summit Racing catalog sells a bolt-on Flex-a-lite 210 dual electric engine fan kit for ~$190, which replaces the stock belt-driven engine fan. This modification gives you an extra two inches of clearance in front of the engine block (good for forced induction setups), and relieves the engine of about 20-30 horsepower ...I installed a set of dual electric fans from (I think) a 4th gen F-body on my 04 TB 4.2 LS. The factory PCM is capable of controlling one electric cooling fan relay with custom programming (possibly a 2nd one if I had the time to probe the unused pins to find out which one is the output for the 2nd fan relay, if it is even available).Dec 5, 2023 ... I Deleted the CLUTCH FAN in my Tahoe and it Actually made it FASTER (E-Fan Conversion). Lsxmatt•181K views.Budget electric fan conversion. Jump to Latest Follow 19K views 13 replies 8 participants last post by abrrymnvette Feb 14, 2008. J. jprsn Discussion starter 23 posts · Joined 2006 Add to quote; Only show this user #1 · Dec 9, 2007. Hi--Just thought I'd share my mod for a budget electric fan conversion. ...

Tools: -Torx (bumper removal) -32mm wrench (fan clutch removal) -10mm wrench/socket (trim removal) -13mm socket (aux fan removal) -wire crimpers, screwdrivers, 5mm hex, pick, etc. First, remove the bumper and trim. Then use the 32mm wrench to remove the fan clutch (tool or no tool, up to you).First. Prev. 1 / 2. C3 Tech/Performance - Electric cooling fan conversion - 1979 c3 - 1979 c3 Engine 383 Stroker Has anyone replaced the stock cooling fan with electrical ones. single/dual. It seems I only have 1.75 inches between the radiator and the A frame arm of the suspension. Also have you kept the shroud in the conversion, if a...Electric fan conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans. This conversion has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG. This kit includes the wiring harness, hardware and brackets to install LS1 V8 fans.Dec 10, 2007 · 9. Remove 2 10mm bolts on the top left and right side of the fan shroud. 10. Remove plastic flaps on bottom left and right side of the fan shroud. [From underneath the truck] Pull outward and then push up. 11. Unclip transmission hard lines from the back passender side of the fan shroud. 12.In today’s fast-paced world, staying up-to-date with the latest entertainment news is essential. Whether you are a movie buff, a music lover, or a fan of celebrity gossip, keeping ...Part # 733680. SKU # 267146. Check if this fits your 2004 Chevrolet Trailblazer. Notes: Engine Cooling Fan. Universal fit auxiliary electric fan. Add on fans used to supplement the primary engine cooling fan. Electric fan kit. PRICE: 81.99. Hub Material: Plastic.Harbour Breeze ceiling fans are a popular choice among homeowners for their sleek design, energy efficiency, and cooling capabilities. However, like any other electrical appliance,...Here at TCP we design and build electric radiator fan and electric radiator fan conversion kits mounted to a custom aluminum shroud to perfectly fit your application. We use the best components in the industry today, SPAL fans and Davies Craig Controllers. We can take care of you, so call us today: (208) 356-6483.

Trailblazer SS Dual Fan Conversion kit. The store will not work correctly in the case when cookies are disabled. Sign In. Forgot Your Password? Links. Compare () Sign In; Contact Us; Create an Account; Toggle Nav. Advanced Search . Search. CALL US NOW (847) 891-0767 . Cart 0 Shopping Cart ...

Description. This kit includes the wiring harness and brackets you need to install LS1 V8 electric fans. This conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow electric fans. This conversion has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG.Quick Navigation GM V8 Tuning - Engine, Gas (Gen 4) Top. I am doing an electric fan conversion on my 2009 silverado 2500HD. I am using factory GM dual fans from a 2008 silverado 1500 with a tow package. I have identified pin 17 and pin 58 for low and high fan control in the ECM. I have a harness from LS1fans.com although I'm not sure I need it.ScarabEpic22. 3261 posts · Joined 2007. #2 · Apr 11, 2016. Easiest thing to do is talk to PCMofNC.com, they have plug n play kits ready to go and can offer you a tune to calibrate for the efan. 13 Sonic RS CGM M6, mods... 08 3SS AWD, bolt-ons, suspension, FR 20x10, SE22 Performance tuned. 02 TB LT 4WD, 3" lift, modded, tuned.Re: Electric fan conversion. There are lots of complete fan kits out there, with controllers, but they can get expensive. Make sure the fan has a shroud, and that it covers as much of the radiator as possible. In many cases you might have to use sheet metal to extend the fan shroud to get better coverage. Another option is a complete junkyard ...Go to pcmforless.com and then electric fan kits on the left hand side of the page. We swapped efans into an 07 TBSS using the Vector Motorsports kit. The kit wires one fan to the existing harness that was plugged into the stock fan shroud. The other fan is wired into the computer.Jun 16, 2018 · I installed a set of dual electric fans from (I think) a 4th gen F-body on my 04 TB 4.2 LS. The factory PCM is capable of controlling one electric cooling fan relay with custom programming (possibly a 2nd one if I had the time to probe the unused pins to find out which one is the output for the 2nd fan relay, if it is even available).Installation instructions and lifetime expert support on all purchases of 2004 Chevrolet TrailBlazer Radiator Fan. Order online at etrailer.com or call 1-800-940-8924. Customer Service Order Tracking. Towing ... Flex-a-lite 16" Flex-Wave Electric Fan - Reversible - 2,660 CFM 4.2L I6 Engine. 6 reviews. Code: FLX236. Retail: $218.51. Our Price ...1. # 5034156683. Chevy Trailblazer 2004, Rapid-Cool™ Universal Fit Reversible Fan Kit by Hayden®. This product can be used for either primary or add-on cooling. The Hayden Rapid-Cool fan features a thin, aerodynamic profile and reversible push/pull... $58.17 - $70.68. ACDelco® GM Original Equipment™ Engine Cooling Fan Motor Connector. 0.

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1999-2006 Electric Dual Fan Upgrade Wiring Harness ECU Replaces 7L5533A226T. 269 Motorsports. $39.99. (1 review) Write a Review. SKU: 35100. Current Stock: Quantity: Add to Wish List.This conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans. Converting to electric fans has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG. This kit features three relays, which allows for quieter operation.Jul 18, 2021 · My electric fan conversion on 4.3L. I did a dual fan conversion on my 04 Blazer which is the same as the S10 and Sonoma or Jimmy with a 4.3L. I used the relay setup that I posted in LSX swap with high low cooling. Low comes on at 185°F shuts off at 175°F and high speed comes on at 200°F and shuts off at 190°F.DIY: Aux/mechanical fan to electric fan swap. - Put the front bumper back on in reverse order (slide in, put in the two reinforcement bar bolts and the assorted bolts to the liners. Viola, you're done. It is good to also replace preventatively your lower radiator hose sensor and 50A fuse which control the electric fan.Trailblazer SS Dual Fan Conversion kit. Be the first to review this product . $224.99. This kit includes the wiring harness and brackets you need to install LS1 V8 (98-02 Camaro/Firebird V8) electric fans. ... eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans perfect ...Dual Electric Fan Module. Sealed unit with dual 35A relays and fuses. Simple hookup for adding 2 fans to any vehicle. Even Holley EFI. My Account Shopping Cart. ... Gen V, Non Vehicle Specific Swap Parts, S-10 / BLAZER 2WD SWAP PARTS, S10 / BLAZER SWAP 4WD, Truck engine, Wiring Harness Adapters, Wiring Harness Modification Tags: …I converted to electric fans yesterday. The white wire off the clutch still produces 12v but pin 56 on the blue connector is used by a yellow/black wire. Both fans are wired to the white wire as the 12v switch. I'll be playin with the tune tonight some more as it cycles the fans on and off for a while then on full and never turns off.This conversion has been credited with gains ranging from 15-20 RWHP and fuel economy improvements of around 1 MPG. The purchase of this kit includes a voucher for a FREE fan patch from us for the computer – you will need it to operate the fans. No operating system swaps required! Our kit is meant for gas trucks only. ….

Find CHEVROLET K5 BLAZER Fans, Electric and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! ... Fans, Electric, Fan and Shroud Economy Packages, Puller, Dual, 14 in. Fan Diameter, Black Plastic Blades, Natural Aluminum Shroud, 24.00 …Dec 12, 2015 ... Get your klowny1969 Shirts and Apparel here: https://teespring.com/stores/klowny1969 How To Convert change a Mechanical cooling Fan to ...Installing a Secondary Electric Pusher Fan. well started having problems with cooling during hot days... temperature starts creeping up between the 210 and the 260 (red) many repairs have been performed (clutch (new clutch), radiator, thermostat..) and it has not seemed to help ...dealer says that everything is working fine and that it is ...Fix p0495 or electric fan. I have an 05 4.2 trailblazer that the check engine light has come on 3 times in the last 300 miles with the p0495 code, I see the fan clutch is about $150 I am not sure what will happen if my wife keeps driving it to and from work like this. I have hp tuners to do all the programming myself, was thinking maybe be ...An electric fan will not give you more power, or better fuel mileage. When are people going to realize that the fan clutch on the 6.0L is computer controlled. When the computer commands it to 0%, any drag on the engine is due to nothing more than a little friction in the clutch and is probably not measurable. The electric fan costs you a bunch ...This conversion has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG. These fans can be hard on the electrical system, our three wire battery cable upgrade kit ( P-070009 & P-070010) is highly recommended. Now available for rental or purchase – PCM of NC Fan Clutch Wrenches!Update on the TBSS electric fan install! It got hot and I found out it wasn't patched! Jay came over with is HP tuners and we got it all straightened out.Big...TBSS Electric Fan Kit Guide. One of the best modifications you can do for your Trailblazer SS is an electric fan kit. Taking the heavy load of the stock fan off of the motor frees up about 15hp, to the rear wheels. This often helps gas mileage as well. There are a couple other added bonuses of the electric fan kit, including computer controlled ... Trailblazer electric fan conversion, Step 6: Test Cooling Fan Control Module. The cooling fan control module or the fan control module relay may be the cause of the DTC P1481 code. Refer to the service manual for the specific testing procedure for your vehicle's cooling fan control module. Use a multimeter to test the device's inputs and outputs for proper voltage and continuity., In today’s fast-paced world, staying up-to-date with the latest entertainment news is essential. Whether you are a movie buff, a music lover, or a fan of celebrity gossip, keeping ..., Update on the TBSS electric fan install! It got hot and I found out it wasn't patched! Jay came over with is HP tuners and we got it all straightened out.Big..., 1973 - 1979 F-100 & Larger F-Series Trucks - Cooling Fan conversion to electric - I have a 78 f250 with a 460 for motor. I want to put an electric fan on it so was wondering if there was a certain cfm fan i need to stay above. It is an automatic tranny with tranny cooler in radiator., the 2003 ele fan is the way the 2002 has same cooling needs as 2003 my 2002 has had 2003 fan on it for 3 years and 40000 miles no over heating once modified the fan has no return fan is around $250 you will need a 60 amp max fuse two wire connectors put max fuse in main connection on fan cut ground wire 6 in. from connector install the two wire connectors one on ground side one on voltage side ..., Mechnix. 2038 posts · Joined 2009. #14 · May 24, 2009. The Flex-A-Lite 60 fan is on sale @ 1 place I saw for $199 shipped. It's a bolt in and wire installation, complete with a/c switch,thermostat, wiring etc. I got one here from a member for $100 unused and I'm very happy with it., I purchased a 2002 trailblazer electric fan conversion harness for dual fans, The harness looks good, the directions are okay but one thing I hated about this company is they are disrespectful and dishonest, I want my fans to come on with my AC compressor as it is supposed to, they gave no direction on how to wire that up and when I emailed them they told me I purchased the cheaper kit and ..., chevy trailblazer ss extreme dual electric fan conversion kit custom fan system. $365.00. universal electric cooling fan mounting feet brackets installation mount 12 pcs . ... gmc sierra chevy silverado extreme electric cooling fan conversion kit custom! $365.00. chevy gmc s10 s 10 s15 sonoma twin electronic cooling fan system more mpg hp 4.3., Think back to the last time you heard someone give a speech by reading words directly off a card. How bored were you? If you want to avoid having the same effect on your own audien..., I think we need to pool together some ideas and thoughts on getting a home brewed electric fan conversion kit together. My 2003 LTZ hasn't suffered from... in this thread in this sub-forum in the entire site. Advanced Search Cancel Login / Join. ... 2009 TrailBlazer/Envoy Tech. 02-09 Vortec 4.2L I-6 Engine and Drivetrain. Engine Tunes/Mods ..., Details. This is a direct-fit, bolt-on Flex-A-Lite® dual electric-fan system for new body style 2000-2004 Chevrolet and GMC trucks with 27 ½ inch wide radiator core. Dyno tests show a gain of up to 17 horsepower while also improving fuel economy by replacing your stock clutch fan assembly with this dual electric fan system., Picked up an electric fan from a 97 crown Vic 4.6l to put in my vega. The fan is almost 19" round and my radiator core is exactly 19x19 so it fits perfect. It is mounted with about 1" air gap between the radiator and fan. I will probably end up sealing it to get better flow. It seems like this fan moves quite a bit of air. It is a single speed unit. Just curious if anyone would know the specs ..., 1- SUM-G4904 - Electric Fan, Single, 16 in. Diameter, Reversible, 2,010 cfm, Black, Plastic, Each $84.95. - I went with this because it's a curved fan which will lower the noise level, and I'm very please with the outcome, also it is reversible for puller or pusher type of use. 2- DER-16749 - Fan Control, Thermostatic, Adjustable, 150 to 240 ..., When looking at OS 12618164 on an '08 TBSS there are no electric fan control options. GM went to a full mechanical engine driven fan for '08 on the TBSS. A popular mod is to incorporate the '07 Corvette electric fans with fan controller (PWM driven) or using LS1 fbody fans (relay controlled) off of pin 49 of connector 3 on the E67. Until now, people have been having to revert back to the 07 OS ..., Apr 11, 2016 · ScarabEpic22. 3261 posts · Joined 2007. #2 · Apr 11, 2016. Easiest thing to do is talk to PCMofNC.com, they have plug n play kits ready to go and can offer you a tune to calibrate for the efan. 13 Sonic RS CGM M6, mods... 08 3SS AWD, bolt-ons, suspension, FR 20x10, SE22 Performance tuned. 02 TB LT 4WD, 3" lift, modded, tuned., With the 2006-2007 H3’s, the fan will run off of our harness, which gets signals from a temperature sensor you will install into your radiator hose, and also from the A/C. Typical gains are about 10hp on an I5. Gas mileage gains are typically 1-2mpg. Click here for main installation instructions! Subharness instructions (06-07)., SS Conversion, SSBC Brake Kit, Avic D3, 22in Rims, Efans, 6000k Kits, SS Wiper Cowl, 35% Tint, Race Mesh Grills ... Is the electric fan less noisy? Save Share. Like. S. ... Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum. 1.3M posts 174.6K members Since 2004 A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and ..., Trailblazer ss dual electric fan kit. Trailblazer swapFan speed switch will not function: the fan speed switch will not Tbss electric fan wiringTrailblazer ss electric fan conversion. 2004 trailblazer heater fan motor not working on any setting, wasRelay wiring diagram for dual fans Trailblazer 2004 registeredTrailblazer v8. Check Details ..., 2002 - 2009 TrailBlazer/Envoy Tech. 02-09 Vortec 4.2L I-6 Engine and Drivetrain. Engine Tunes/Mods. Electric Fan Problem. Jump to Latest Follow 3K views 8 ..., 1. # 5034156683. Chevy Trailblazer 2004, Rapid-Cool™ Universal Fit Reversible Fan Kit by Hayden®. This product can be used for either primary or add-on cooling. The Hayden Rapid-Cool fan features a thin, aerodynamic profile and reversible push/pull... $58.17 - $70.68. ACDelco® GM Original Equipment™ Engine Cooling Fan Motor Connector. 0., If you find yourself in the middle of a conversation that has become awkward, frustrating, or they just won’t stop talking, escape is necessary. Excusing yourself while inviting th..., You also have to change the AC type. Here is a good write up on getting A/C fan operation on the pre 03 trucks. I did the electric fan conversion on my 2001 silverado with 4.8. I used a factory harness and a factory fuse/relay block i also put a ac pressure sensor in so computer could operate the fans. The fans work on stage 1 as they should., Cost of an EV Conversion. Converting to an EV costs about $6,000 in parts and about $1,000 to $3,000 for batteries and installation. A more expensive retrofit could set you back $20,000 or …, Aug 13, 2023 ... Comments7 ; Dyno Tuning a Cammed LS3 Chevy TBSS with HPtuners. Matt Sanford · 4K views ; Trailblazer SS Electric Fan conversion. Ralph's Garage ..., Trailblazer SS & 5.3L 2005-2009; Uncategorized; Mail Order Tuning. Cadillac. Cadillac CTS-V 2004-2007 Mail Order Tuning; Cadillac CTS-V 09-15; ... Electric Fan Patches. Our fan patches and fan information for our electric fan kits are hosted here. Choose the corresponding folder, right click and save the appropriate file. Open your current tune ..., TrailblazerGMT 360 V8 Three Relay LS1 Fan Conversion Harness. Trailblazer V8 Three Relay LS1 Dual Fan Conversion kit. $230. In stock. Quantity: 1. Add to Bag. Product Details. An updated and upgraded version of our two relay electric fan kit – this kit features three relays, which allows for quieter operation., A Brushless Direct Current (BLDC) fan operates using a motor that employs electronic commutation rather than traditional brushes, resulting in higher efficiency, longer lifespan, and reduced noise levels. A BLDC fan conversion kit is a package that contains all the necessary components to retrofit your existing fan with these advanced features., Find CHEVROLET 4.3L/262 Fans, Electric V6 Engine Type and get Free Shipping on Orders Over $109 at Summit Racing!, But now, no. First the parts house fan won't move as much air, will be more expensive, and less reliable than an alternative. That alternative is the OEM fan out of a Lincoln Mark 8. This fan is a beast, draws almost 40 amps at max, and move somthing like 5000CFM. They are like 30 bucks from a salvage yard too!, $229.99. In stock. Quantity: 1. Add to Bag. Product Details. This kit includes the wiring harness and brackets you need to install LS1 V8 electric fans. This conversion eliminates the power robbing stock electro-viscous …, Hello Everyone, I have been wanting to do the dual electric fan conversion for a while and Finally got around to it. I was at a Salvage yard and found the fans and wiring harness with the relays from a 2005ish truck, didn't really look at what the year was. So I Pinned the green trigger wire to pin 42 on the blue ecm connector, the blue wire was tapped in to the existing wire on pin 33 on the ..., Find CHEVROLET SILVERADO 1500 5.3L/325 Fans, Electric Dual Fan Quantity and get Free Shipping on Orders Over $109 at Summit Racing!, Fan Clutch Conversion to Thermatic® Electric Fan. Automotive belt-driven fan clutches have been available as standard equipment on some passenger and SUV vehicles for many years. Fan clutches are viscous or "fluid" coupling devices with a built-in thermostat coil spring that detects the air temperature passing through the radiator and utilizes ...