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Audi A4 Engine Parts & Accessories

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Sprint Booster V3 Power Converter

ES#5396062 - 77-16414 - Sprint Booster V3 Power Converter - Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes - Sprint Booster - Audi

Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes

Brand:
Sprint Booster - Corporate Logo
ES#:
5396062
Mfg#:
77-16414
Ships in 10 Business Days
$289.00 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
9% 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
08-10-2026

$577.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Splitter Valve - Polished

ES#1832064 - FMDVSPLTRC - Splitter Valve - Polished - Recirculation & blow off valve all in one for customers that want both styles - Forge - Audi Volkswagen

Recirculation & blow off valve all in one for customers that want both styles

Brand:
Forge - Corporate Logo
ES#:
1832064
Mfg#:
FMDVSPLTRC
Back Ordered
$287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Gasket

ES#2547 - 028129748 - Throttle Body Gasket - Seals the throttle body to the intake manifold - Elring - Audi Volkswagen

Seals the throttle body to the intake manifold 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2547
Mfg#:
028129748
In Stock
$5.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brisk Silver Racing ER12YS Spark Plug - Priced Each

ES#4017481 - ER12YS - Brisk Silver Racing ER12YS Spark Plug - Priced Each - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen Mercedes Benz

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! One heat range colder than stock with a projected tip

Brand:
Brisk - Corporate Logo
ES#:
4017481
Mfg#:
ER12YS
In Stock
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
08-10-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B6 A4 1.8T Performance Baffled Oil Catch Can System - 8 oz.

ES#4906657 - 053538LA04KT - B6 A4 1.8T Performance Baffled Oil Catch Can System - 8 oz. - Keep your intake tract clean and oil free! Featuring a four-chamber baffled catch can, durable silicone hoses, and a plug & play bracket for seamless integration. - ECS - Audi

Keep your intake tract clean and oil free! Featuring a four-chamber baffled catch can, durable silicone hoses, and a plug & play bracket for seamless integration. 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-3-500001, split is in the 2003 model year.

Brand:
ECS - Corporate Logo
ES#:
4906657
Mfg#:
053538LA04KT
In Stock
ON SALE! SAVE 15%
$676.99

This product was last offered at the strikethrough price on
06-13-2026

$575.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Assembly - Priced Each

ES#4039716 - 079133062C - Throttle Body Assembly - Priced Each - Includes the throttle position sensor - Vemo - Audi Volkswagen

Includes the throttle position sensor

Brand:
Vemo - Corporate Logo
ES#:
4039716
Mfg#:
079133062C
In Stock
ON SALE! SAVE 31%
$837.53

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

$574.83 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Copper Drain Plug Washer - Pack Of 5

ES#2265 - N138492 5PACK - Copper Drain Plug Washer - Pack Of 5 - Replace with every oil service to prevent leaks. M14x20x1.5 - Victor Reinz - Audi Volkswagen

Replace with every oil service to prevent leaks. M14x20x1.5

Brand:
Victor Reinz - Corporate Logo
ES#:
2265
Mfg#:
N138492 5PACK
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#470518 - N90686701 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 14x12mm - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 14x12mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470518
Mfg#:
N90686701
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coupling hose

ES#4818447 - 06D133299C - Coupling hose - Connects the breather tube to the valve cover port - Bremmen Parts - Audi

Connects the breather tube to the valve cover port 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818447
Mfg#:
06D133299C
In Stock
ON SALE! SAVE 21%
$32.99

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

$26.10 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
08-10-2026

$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 Sep 1, 2026
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175278 - 251130 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits quattro 6-speed transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175278
Mfg#:
251130
Ships in 4 Business Days
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake Valve - Standard Size - Set Of 8

ES#4742553 - vwivn-1002s-8KT - Intake Valve - Standard Size - Set Of 8 - Stainless Steel Valves and a complete set of keepers to rebuild your engine. - Supertech - Audi Volkswagen

Stainless Steel Valves and a complete set of keepers to rebuild your engine.

Brand:
Supertech - Corporate Logo
ES#:
4742553
Mfg#:
VWIVN-1002S-8KT
Ships in 2 Business Days
$285.99 USD
Free Shipping
on orders $49 and up
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 For Our 25th Anniversary 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
Auto Notify
ON SALE!
$590.99

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

$566.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vent Tube

ES#436409 - 8E0201183BA - Vent Tube - Connects the filler neck to the charcoal canister. - Genuine Volkswagen Audi - Audi

Connects the filler neck to the charcoal canister. From VIN 8E-4-000001, split is in the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436409
Mfg#:
8E0201183BA
Ships in 1 day
8% off MSRP

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

$623.99

This product was last offered at the strikethrough price on
08-10-2026

$570.99 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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