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Audi A4 Engine Parts & Accessories

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Thermostat - 71°C

ES#6957 - 075121113D 71D - Thermostat - 71C - Keep your engine running cooler for more power - Mahle-Behr - Audi Volkswagen

Keep your engine running cooler for more power Lower temperature thermostat than factory - OE is 87°C

Brand:
Mahle-Behr - Corporate Logo
ES#:
6957
Mfg#:
075121113D 71D
Ships in 1-2 days
$30.99

This product was last offered at the strikethrough price on
09-21-2026

$28.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#4818590 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen Porsche

Common cure for DTC P0441 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818590
Mfg#:
1C0906517A
In Stock
ON SALE! SAVE 21%
$37.99

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

$30.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount - Priced Each

ES#2875741 - 4B0399151M - Transmission Mount - Priced Each - Reduce excessive drivetrain vibrations - Febi - Audi Volkswagen

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

Brand:
Febi - Corporate Logo
ES#:
2875741
Mfg#:
4B0399151M
In Stock at Vendor
$96.99

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

$57.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gen-V WG50 Pro-Gate50 External Wastegate - 14psi / Black

The Gen-V WG50 Pro-Gate50 external wastegate is a cost effective, high performing 50mm external wastegate. *General use wastegate for custom, externally gated big turbo applications - Not a direct fit wastegate*

Brand:
TurboSmart - Corporate Logo
ES#:
4007256
Mfg#:
TS-0554-1012
In Stock at Vendor
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$635.99

This product was last offered at the strikethrough price on
09-30-2026

$572.99 USD
Free Shipping
on orders $49 and up

Performance Stainless 2.5" Downpipe

ES#3175279 - 251130R - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with factory exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with factory exhaust Fits quattro 6-speed transmission models only - To be used with factory exhaust

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175279
Mfg#:
251130R
Ships on Oct 22, 2026
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Hose

ES#4818670 - 8E0121101 - Upper Radiator Hose - Connects the upper radiator to the expansion tank and thermostat housing - Bremmen Parts - Audi

Connects the upper radiator to the expansion tank and thermostat housing 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818670
Mfg#:
8E0121101
In Stock
ON SALE! SAVE 21%
$35.99

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

$28.55 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug

ES#205067 - N0160276 - Oil Drain Plug - Does not include the crush washer. M14X1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Does not include the crush washer. M14X1.5 From VIN 8E-6-285001, split is in the 2006 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
205067
Mfg#:
N0160276
In Stock
ON SALE! SAVE 16%
$4.53

This product was last offered at the strikethrough price on
05-14-2026

$3.80 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#4505140 - 06A906433C - Crankshaft Position Sensor - Also known as the RPM or speed sensor - URO - Audi Volkswagen

Also known as the RPM or speed sensor 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission from VIN 8D-W-000483, split is in the 1998 model year

Brand:
URO - Corporate Logo
ES#:
4505140
Mfg#:
06A906433C
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thrust Washer - Priced Each

ES#3979000 - 06A105637A - Thrust Washer - Priced Each - To be used with the middle main bearing, two required. - Kolbenschmidt - Audi Volkswagen

To be used with the middle main bearing, two required.

Brand:
Kolbenschmidt - Corporate Logo
ES#:
3979000
Mfg#:
06A105637A
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Damper Crankshaft Pulley

ES#3557367 - 551201_AEB - Harmonic Damper Crankshaft Pulley - Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability - Fluidampr - Audi Volkswagen

Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability This is a custom product and requires 2-3 week lead time to manufacture due to the zinc plating process.
Engine codes AEB & ATW

Brand:
Fluidampr - Corporate Logo
ES#:
3557367
Mfg#:
551201_AEB
Back Ordered
$569.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover

ES#280379 - 06D103469N - Valve Cover - Complete valve cover assembly, includes gaskets and hardware - Genuine Volkswagen Audi - Audi

Complete valve cover assembly, includes gaskets and hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280379
Mfg#:
06D103469N
Ships in 1 day
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$631.99

This product was last offered at the strikethrough price on
08-31-2026

$568.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Timing Belt Kit - With Lightweight Crank Pulley

ES#5593 - 058198479v2lwblk - Ultimate Timing Belt Kit - With Lightweight Crank Pulley - Featuring ECS Tuning's lightweight crank pulley - Assembled By ECS - Audi Volkswagen

Featuring ECS Tuning's lightweight crank pulley 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with AEB or ATW engine codes only.
For vehicles with AEB or ATW engine codes only.

Brand:
Assembled By ECS - Corporate Logo
ES#:
5593
Mfg#:
058198479V2LWBLK
Back Ordered
ON SALE!
$590.99

This product was last offered at the strikethrough price on
04-04-2026

$551.53 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set

ES#3690556 - 06e103483pkt1KT - Valve Cover Gasket Set - Includes the left and right side seals - Febi - Audi

Includes the left and right side seals We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
3690556
Mfg#:
06E103483PKT1KT
In Stock
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Belt

ES#2800735 - 06H121605E - Water Pump Belt - Recommended to be replaced with the water pump - Continental - Audi Volkswagen

Recommended to be replaced with the water pump We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2800735
Mfg#:
06H121605E
In Stock
$31.16

This product was last offered at the strikethrough price on
07-08-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coils - Red - Set of Four

ES#4846424 - VWR900003-4KT - RacingLine Higher Output Ignition Coils - Red - Set of Four - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils.

Brand:
Racingline - Corporate Logo
ES#:
4846424
Mfg#:
VWR900003-4KT
Ships in 9 Business Days
ON SALE! SAVE 10%
$157.36

This product was last offered at the strikethrough price on
09-18-2026

$141.62 USD
Free Shipping
on orders $49 and up

Camshaft Magnet Seal Kit

ES#5460612 - 06k1034832KT - Camshaft Magnet Seal Kit - Everything needed to replace all three seals on the upper timing cover - Assembled By ECS - Audi Volkswagen

Everything needed to replace all three seals on the upper timing cover 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5460612
Mfg#:
06K1034832KT
Ships in 8 Business Days
ON SALE! SAVE 23%
$60.99

This product was last offered at the strikethrough price on
05-29-2026

$47.00 USD
Free Shipping
on orders $49 and up
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.

Let us help you find the parts that fit your Audi

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