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Audi A4 Engine Parts & Accessories

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Cooling System Refresh Kit - Level 1 With ECS Billet Aluminum J-Plug

ES#2795701 - 06B121111KT2 - Cooling System Refresh Kit - Level 1 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug & replace your thermostat, temp sensor & expansion tank with one kit! - Assembled By ECS - Audi

Includes ECS' upgraded J-plug & replace your thermostat, temp sensor & expansion tank with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795701
Mfg#:
06B121111KT2
In Stock at Vendor
ON SALE! SAVE 17%
$273.99

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

$228.28 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Quad Ring Oil Filter Gasket

ES#3514764 - QR2 - Quad Ring Oil Filter Gasket - Replacement gasket for all K&P Engineering spin-on filters - K&P Engineering - Audi Volkswagen

Replacement gasket for all K&P Engineering spin-on filters

Brand:
K&P Engineering - Corporate Logo
ES#:
3514764
Mfg#:
QR2
Ships in 7 Business Days
$2.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount Kit

ES#3970271 - 8R0198381D - Engine Mount Kit - Eliminate excessive engine vibrations with new engine mounts - Meyle - Audi

Eliminate excessive engine vibrations with new engine mounts 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to the 2012 model year

Brand:
Meyle - Corporate Logo
ES#:
3970271
Mfg#:
8R0198381D
Ships on Sep 16, 2026
$227.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay Roller

ES#283486 - 078109244H - Relay Roller - The idler pulley for the toothed timing belt - Genuine Volkswagen Audi - Audi Volkswagen

The idler pulley for the toothed timing belt

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283486
Mfg#:
078109244H
Ships in 2 Business Days
7% off MSRP

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

$121.99

This product was last offered at the strikethrough price on
08-30-2026

$113.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#4871968 - 4B0121055J - Radiator Hose - Lower - Connects the lower radiator port to the water pump and expansion tank - Bremmen Parts - Audi Volkswagen

Connects the lower radiator port to the water pump and expansion tank 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871968
Mfg#:
4B0121055J
In Stock
ON SALE! SAVE 25%
$50.99

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#52 - AEBABK - Accessory Belt Kit - Replace all of your worn drive belts at once - Continental - Audi Volkswagen

Replace all of your worn drive belts at once We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW

Brand:
Continental - Corporate Logo
ES#:
52
Mfg#:
AEBABK
Back Ordered
Auto Notify
$40.99

This product was last offered at the strikethrough price on
06-04-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) - Priced Each

ES#2602137 - 06B103245 - Pressure Control Valve (PCV) - Priced Each - Located under the intake manifold - Vaico Q+ - Audi Volkswagen

Located under the intake manifold From VIN 8E-3-040001 up to VIN 8E-3-500000, splits are in the 2003 model year

Brand:
Vaico Q+ - Corporate Logo
ES#:
2602137
Mfg#:
06B103245
Ships in 1-2 days
$44.99

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

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Repair Harness

ES#3647595 - 034-701-0004 - Coil Pack Repair Harness - Cure misfires by replacing your brittle, heat-hardened, and cracking factory harness - 034Motorsport - Audi Volkswagen

Cure misfires by replacing your brittle, heat-hardened, and cracking factory harness 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3647595
Mfg#:
034-701-0004
Back Ordered
ON SALE! SAVE 10%
$253.00

This product was last offered at the strikethrough price on
08-17-2026

$227.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Oil Separator

ES#4818092 - 06H103464L - Secondary Oil Separator - Mounted to the side of the engine block - Bremmen Parts - Audi Volkswagen

Mounted to the side of the engine block 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818092
Mfg#:
06H103464L
In Stock
ON SALE! SAVE 21%
$31.99

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

$25.29 USD
Free Shipping
on orders $49 and up

Cylinder Head Bolt Set - With Tool

ES#263802 - 204-3902 - Cylinder Head Bolt Set - With Tool - High strength head bolts with a triple square head - ARP - Audi Volkswagen

High strength head bolts with a triple square head

Brand:
ARP - Corporate Logo
ES#:
263802
Mfg#:
204-3902
Ships on Sep 16, 2026
$226.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Boost Tee Manual Boost Controller - Black

ES#4430283 - TS-0101-1102 - Turbosmart Boost Tee Manual Boost Controller - Black - In-car boost controller for fine tuning - TurboSmart - Audi Volkswagen MINI Porsche

In-car boost controller for fine tuning

Brand:
TurboSmart - Corporate Logo
ES#:
4430283
Mfg#:
TS-0101-1102
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.

$124.99

This product was last offered at the strikethrough price on
08-29-2026

$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Low Pressure Fuel Pump Control Unit

ES#4920617 - 4F0906093L - Low Pressure Fuel Pump Control Unit - Located above the in-tank fuel pump - URO - Audi

Located above the in-tank fuel pump 2X Entries Into Our F80 M3 Sweepstakes
Cabriolet models only

Brand:
URO - Corporate Logo
ES#:
4920617
Mfg#:
4F0906093L
Ships in 1 Business Day
$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each

ES#2834954 - N90813202 - Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each - Includes crush washer. M14x1.5 - Febi - Audi

Includes crush washer. M14x1.5 We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2834954
Mfg#:
N90813202
Ships in 5 Business Days
$4.07

This product was last offered at the strikethrough price on
08-14-2026

$3.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount - Priced Each

ES#5869 - 8D0399151R - Transmission Mount - Priced Each - Fits the left and right side - Lemforder - Audi Volkswagen

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

Brand:
Lemforder - Corporate Logo
ES#:
5869
Mfg#:
8D0399151R
In Stock at Vendor
$27.60

This product was last offered at the strikethrough price on
03-31-2026

$25.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#3183720 - 06E103547P - Pressure Control Valve (PCV) - Located beneath the intake manifold - Vaico - Audi

Located beneath the intake manifold We Price Match - Give Us A Call or Chat!
From VIN 8E-6-285001, split is in the 2006 model year

Brand:
Vaico - Corporate Logo
ES#:
3183720
Mfg#:
06E103547P
Ships in 1 Business Day
$231.99

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

$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2608021 - 06J121113CKT - Thermostat Replacement Kit - Keep your cooling system efficient with a new thermostat, housing and o-ring - Genuine Volkswagen Audi - Audi

Keep your cooling system efficient with a new thermostat, housing and o-ring For vehicles with Behr water pumps from the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2608021
Mfg#:
06J121113CKT
Ships in 2 Business Days
$224.99 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.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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