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Audi B5 A4 Quattro V6 12v

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Audi B5 A4 Quattro V6 12v Engine Parts & Accessories

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Thermostat (87°C)

ES#5492507 - 050121113C4 - Thermostat (87C) - Direct OE-quality replacement thermostat to cure overheating issues, resolve poor cabin heater performance, and ensure your engine reaches and maintains its ideal operating temperature. - Febi - Audi Volkswagen

Direct OE-quality replacement thermostat to cure overheating issues, resolve poor cabin heater performance, and ensure your engine reaches and maintains its ideal operating temperature.

Brand:
Febi - Corporate Logo
ES#:
5492507
Mfg#:
050121113C4
Special Order: No Guaranteed ETA
$8.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87C

Direct OE-quality replacement coolant thermostat to cure overheating issues, resolve engine under-temperature conditions, and restore precise thermal regulation to your V6 engine. We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873481
Mfg#:
078121113FS3
Special Order: No Guaranteed ETA
$15.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Crankshaft Seal

Stop oil leaks and prevent internal engine damage. 35x48x10 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5504851
Mfg#:
054115147B
Ships on Dec 24, 2026
$4.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 4 Pin

<font color='blue'>Blue</font> sensor with square connector. Please check existing sensor color - 078919501B

Brand:
Refak - Corporate Logo
ES#:
3143185
Mfg#:
078919501B
Special Order: No Guaranteed ETA
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Hose

ES#2887307 - 4B0145838 - Throttle Body Hose - Connects the throttle body to the top port of the intercooler - Vaico - Audi Volkswagen

Connects the throttle body to the top port of the intercooler We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2887307
Mfg#:
4B0145838
Special Order: No Guaranteed ETA
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Pressure Safety Switch

ES#2901740 - 8D0959482B - A/C Pressure Safety Switch - Prevents excess pressure from building within the system - Vemo - Audi Volkswagen

Prevents excess pressure from building within the system From VIN 8D-V-000001, split is in the 1997 model year

Brand:
Vemo - Corporate Logo
ES#:
2901740
Mfg#:
8D0959482B
Special Order: No Guaranteed ETA
$56.99 USD
Free Shipping
on orders $49 and up

Transmission Mount - Priced Each

Reduce excessive drivetrain vibrations We Price Match - Give Us A Call or Chat!

Brand:
Lemforder - Corporate Logo
ES#:
3219978
Mfg#:
8D0399151M
Special Order: No Guaranteed ETA
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Adapter Plate - VR6 To Audi Quattro Trans

ES#4880659 - 034-509-Z002 - Transmission Adapter Plate - VR6 To Audi Quattro Trans - Adaptor plate for bolting the VR6 engine to 016 / 01A / 01E Audi transmissions. - 034Motorsport - Audi

Adaptor plate for bolting the VR6 engine to 016 / 01A / 01E Audi transmissions. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4880659
Mfg#:
034-509-Z002
Back Ordered
$429.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#7557 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
7557
Mfg#:
078198675
Back Ordered
ON SALE! SAVE 12%
$457.99

This product was last offered at the strikethrough price on
05-02-2026

$403.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate Plus

ES#1893862 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
1893862
Mfg#:
078198675
Back Ordered
ON SALE! SAVE 11%
$504.99

This product was last offered at the strikethrough price on
05-02-2026

$449.05 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expansion Tank Replacement Kit

ES#2586882 - 8D0121403DKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586882
Mfg#:
8D0121403DKT
Back Ordered
$59.99

This product was last offered at the strikethrough price on
09-03-2026

$57.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#5434914 - 077906037AKT7 - Fuel Injector Installation Kit - A simple to service all six injectors! - Assembled By ECS - Audi

A simple to service all six injectors! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434914
Mfg#:
077906037AKT7
Back Ordered
ON SALE!
$52.86

This product was last offered at the strikethrough price on
05-02-2026

$51.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Timing Belt Kit - Ultimate

ES#3327 - 078198579 V2 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3327
Mfg#:
078198579 V2
Back Ordered
ON SALE!
$225.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Replacement Kit

ES#2602641 - 078103604HKT - Oil Pan Replacement Kit - Everything required to replace your leaking pan, including the oil change - Assembled By ECS - Audi

Everything required to replace your leaking pan, including the oil change 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602641
Mfg#:
078103604HKT
Back Ordered
ON SALE!
$309.18 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Remanufactured Alternator - 120 Amps

ES#2523995 - 06B903018EXBOSKI - Remanufactured Alternator - 120 Amps - Includes a $70 refundable core charge - Bosch - Audi Volkswagen

Includes a $70 refundable core charge We Price Match - Give Us A Call or Chat!
Please check current alternator for correct amps

Brand:
Bosch - Corporate Logo
ES#:
2523995
Mfg#:
06B903018EXBOSKI
Back Ordered
$446.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - Stage 1

ES#2538557 - 09356KT - Ignition Service Kit - Stage 1 - Includes Bosch plug wires and spark plugs - Bosch - Audi

Includes Bosch plug wires and spark plugs We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2538557
Mfg#:
09356KT
Back Ordered
$292.99

This product was last offered at the strikethrough price on
05-07-2026

$291.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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