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Audi A4 Engine Parts & Accessories

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Plastic Dowel Pin - Pack Of 25

Secures the belly pan to the fender liners 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940358
Mfg#:
4A0805121A
Special Order: No Guaranteed ETA
Auto Notify
ON SALE! SAVE 11%
$28.99

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

$25.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Tensioner

ES#4759154 - 06E109467M - Timing Chain Tensioner - Lower left chain tensioner - Bremmen Parts - Audi

Lower left chain tensioner 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759154
Mfg#:
06E109467M
In Stock
ON SALE! SAVE 46%
$47.99

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

$25.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring Set

ES#2642626 - 06A906149AKT - Fuel Injector O-Ring Set - A complete set of upper and lower o-rings - Assembled By ECS - Audi

A complete set of upper and lower o-rings 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code ATW

Brand:
Assembled By ECS - Corporate Logo
ES#:
2642626
Mfg#:
06A906149AKT
In Stock
ON SALE! SAVE 15%
$29.99

This product was last offered at the strikethrough price on
06-16-2026

$25.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Hose

ES#280263 - 06C121445A - Thermostat Hose - Connects the water pipe to the thermostat - Genuine Volkswagen Audi - Audi

Connects the water pipe to the thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280263
Mfg#:
06C121445A
In Stock
ON SALE!
$25.99

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

$25.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay Roller

ES#1306668 - 078109244H - Relay Roller - The idler pulley for the toothed timing belt - GMB - Audi Volkswagen

The idler pulley for the toothed timing belt

Brand:
GMB - Corporate Logo
ES#:
1306668
Mfg#:
078109244H
Ships in 1 Business Day
$25.99

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

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Idler Pulley

ES#2813044 - 06B903341B - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Hamburg Tech - Audi

Also referred to as the 'relay roller' We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813044
Mfg#:
06B903341B
Ships in 1 Business Day
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#2814234 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Hamburg Tech - Audi Volkswagen

Common cure for DTC P0441 We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814234
Mfg#:
1C0906517A
Ships in 1 Business Day
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#2878431 - 058103493A - Breather Hose - Connects the PVC to the metal vent tube - Vaico - Audi Volkswagen

Connects the PVC to the metal vent tube We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2878431
Mfg#:
058103493A
In Stock at Vendor
$25.99

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

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - Black

Senses engine oil pressure for the ECU and warning light. M10x1. 1.2-1.6 BAR From VIN 8E-5-533001, split is in 2005 model year

Brand:
SMP - Corporate Logo
ES#:
4057642
Mfg#:
06D919081B
In Stock at Vendor
$29.99

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

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Supply

ES#3463390 - 8E1819371B - Heater Core Hose - Supply - Connects the flange to the heater core pipe - Hudson - Audi

Connects the flange to the heater core pipe

Brand:
Hudson - Corporate Logo
ES#:
3463390
Mfg#:
8E1819371B
Ships in 3 Business Days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3463358 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Hudson - Audi Volkswagen

Connects the lower radiator port to the thermostat housing From VIN 8D -X-003501, split is in the 1999 model year

Brand:
Hudson - Corporate Logo
ES#:
3463358
Mfg#:
8D0121055T
Ships in 3 Business Days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Battery Ventilation Hose

ES#380161 - 4D0915531 - Battery Ventilation Hose - 1442mm, Replacement hose for proper battery ventilation - Genuine Volkswagen Audi - Audi

1442mm, Replacement hose for proper battery ventilation

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
380161
Mfg#:
4D0915531
Ships in 7 Business Days
11% off MSRP

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

$27.99

This product was last offered at the strikethrough price on
08-15-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#261299 - 1H0201511A - Fuel Filter - Restore fuel mileage and performance - Mann - Audi Volkswagen

Restore fuel mileage and performance

Brand:
Mann - Corporate Logo
ES#:
261299
Mfg#:
1H0201511A
Ships in 8 Business Days
$24.99 USD
Free Shipping
on orders $49 and up

Engine Mount - Right

ES#2187550 - 8D0199382L - Engine Mount - Right - Reduce excessive engine vibrations - URO - Audi Volkswagen

Reduce excessive engine vibrations 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187550
Mfg#:
8D0199382L
Back Ordered
$24.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#2816256 - 8D0121403D - Coolant Expansion Tank - Includes integrated coolant level sensor - Hamburg Tech - Audi

Includes integrated coolant level sensor We Price Match - Give Us A Call or Chat!
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816256
Mfg#:
8D0121403D
Ships in 1 Business Day
$24.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Snub Mount - Priced Each

ES#2627344 - 8D0199339P - Snub Mount - Priced Each - Reduce excessive engine vibrations - Rein - Audi Volkswagen

Reduce excessive engine vibrations 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627344
Mfg#:
8D0199339P
Back Ordered
$8.15 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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