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Audi Engine Parts & Accessories

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K03 Replacement Kit

ES#2730245 - 078145701Tkt - K03 Replacement Kit - Restore boost and get going - Assembled By ECS - Audi

Restore boost and get going affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For automatic transmission vehicles from the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730245
Mfg#:
078145701TKT
Back Ordered
ON SALE!
$3136.99

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

$3104.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 Eventuri Intake System - Black Carbon

ES#3604844 - EVE-B9S5-CF-INT - Audi B9 S4/S5 Eventuri Intake System - Black Carbon - Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style! - Eventuri - Audi

Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Eventuri - Corporate Logo
ES#:
3604844
Mfg#:
EVE-B9S5-CF-INT
Ships in 5 Business Days
$1550.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VW/Audi 2.0T TSI Performance Aluminum Radiator - With Installation Kit

ES#4030589 - 004257ECS02KT - VW/Audi 2.0T TSI Performance Aluminum Radiator - With Installation Kit - Direct-fit upgrade! Featuring a 20% increase in cooling system capacity along with a durable, all aluminum construction. Includes new radiator mounts and coolant. - Assembled By ECS - Audi Volkswagen

Direct-fit upgrade! Featuring a 20% increase in cooling system capacity along with a durable, all aluminum construction. Includes new radiator mounts and coolant. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with TSI engine only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4030589
Mfg#:
004257ECS02KT
Ships on Aug 21, 2026
Auto Notify
ON SALE! SAVE 14%
$401.30

This product was last offered at the strikethrough price on
01-03-2026

$344.08 USD
This product is lifetime replacement eligible Partial Replacement

Thermostat Replacement Kit

ES#3659374 - 07812112jKT4 - Thermostat Replacement Kit - Keep your cooling system efficient with a new thermostat and housing - Assembled By ECS - Audi

Keep your cooling system efficient with a new thermostat and housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Aluminum housing used on the B5 S4 - Commonly used as a factory upgrade for the OE plastic piece

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659374
Mfg#:
07812112JKT4
In Stock
ON SALE!
$180.99

This product was last offered at the strikethrough price on
01-03-2026

$171.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#274849 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Genuine Volkswagen Audi - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274849
Mfg#:
037906283C
In Stock
16% off MSRP

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

$216.65

This product was last offered at the strikethrough price on
02-26-2026

$181.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#5424982 - 06L903133D3KT - Accessory Belt Kit - Keep your drive belt tight with a new belt, tensioner, and hardware - Assembled By ECS - Audi Volkswagen

Keep your drive belt tight with a new belt, tensioner, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5424982
Mfg#:
06L903133D3KT
Back Ordered
Auto Notify
ON SALE! SAVE 21%
$260.99

This product was last offered at the strikethrough price on
02-26-2026

$206.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Six

ES#2219721 - BKR7E - Spark Plugs - Set Of Six - Featuring a copper core and ideal for chip tuned vehicles - NGK - Audi

Featuring a copper core and ideal for chip tuned vehicles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
One heat range colder than factory plugs - Beneficial to cars with basic performance upgrades

Brand:
NGK - Corporate Logo
ES#:
2219721
Mfg#:
BKR7E
In Stock
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Air Intake System - With Heat Shield

ES#4213934 - CTS-IT-271 - CTS Turbo Air Intake System - With Heat Shield - Gain performance with a quality intake system - CTS - Audi Volkswagen

Gain performance with a quality intake system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4213934
Mfg#:
CTS-IT-271
In Stock
ON SALE! SAVE 15%
$329.99

This product was last offered at the strikethrough price on
06-25-2026

$280.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turboback Exhaust System - Non-Resonated - Valved

ES#2918044 - SSXAU381KT2 - Turboback Exhaust System - Non-Resonated - Valved - 3" Large bore downpipe with Hi-Flow Sports cat and 3" stainless steel cat-back with quad 100mm Titanium tips - Milltek Sport - Audi

3" Large bore downpipe with Hi-Flow Sports cat and 3" stainless steel cat-back with quad 100mm Titanium tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2918044
Mfg#:
SSXAU381KT2
Ships in 3 Business Days
ON SALE! SAVE 10%
$3424.99

This product was last offered at the strikethrough price on
07-01-2026

$3082.41 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T

ES#5375303 - FMEDV106A - Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T - Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! - Forge - Audi Volkswagen

Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
5375303
Mfg#:
FMEDV106A
Ships on Jul 21, 2026
Auto Notify
ON SALE! SAVE 10%
$379.99

This product was last offered at the strikethrough price on
07-01-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Exhaust System - Audi B9 RS 5 Coupe

ES#4727649 - AWEB9RS5TR - AWE Touring Edition Exhaust System - Audi B9 RS 5 Coupe - A true, dual 3 T304L stainless steel configuration featuring an x-pipe specific for the RS5s 2.9TT, and topped off with AWEs proprietary drone-canceling solution, 180 Technology. - AWE - Audi

A true, dual 3” T304L stainless steel configuration featuring an x-pipe specific for the RS5’s 2.9TT, and topped off with AWE’s proprietary drone-canceling solution, 180 Technology®. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For coupe models up through the 2019 model year only (Pre-Facelift)

Brand:
AWE - Corporate Logo
ES#:
4727649
Mfg#:
AWEB9RS5TR
Ships on Jul 21, 2026
Starting at $3075.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Guide Rail - Upper

ES#281411 - 06H109509Q - Timing Chain Guide Rail - Upper - Left rail on the chain that connects to the camshaft - Genuine Volkswagen Audi - Audi Volkswagen

Left rail on the chain that connects to the camshaft affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281411
Mfg#:
06H109509Q
In Stock
52% off MSRP

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

$56.18

This product was last offered at the strikethrough price on
01-19-2026

$27.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate With Gates Racing Timing Belt & Performance Pulley Set

ES#3098298 - 06B198479KT3 - Timing Belt Kit - Ultimate With Gates Racing Timing Belt & Performance Pulley Set - Includes ECS Tuning's Lightweight Underdrive Pulley Kit in Black! Featuring ECS Heavy Duty Cast Aluminum Thermostat Housing! - Assembled By ECS - Audi Volkswagen

Includes ECS Tuning's Lightweight Underdrive Pulley Kit in <font color='black'>Black</font>! Featuring ECS Heavy Duty Cast Aluminum Thermostat Housing! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes Gates Racing Kevlar Timing Belt with 300% the strength of a standard belt! Vehicles with clutche

Brand:
Assembled By ECS - Corporate Logo
ES#:
3098298
Mfg#:
06B198479KT3
In Stock
ON SALE!
$836.99

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

$767.87 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS4 K04 Turbochargers

ES#4164822 - 5304988002526KT3 - RS4 K04 Turbochargers - Includes the left (K04-025) & right (K04-026) side turbochargers - BorgWarner - Audi

Includes the left (K04-025) & right (K04-026) side turbochargers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Does NOT include hardware or the RS4/modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).

Brand:
BorgWarner - Corporate Logo
ES#:
4164822
Mfg#:
5304988002526KT3
Ships in 1 Business Day
$3070.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Copper Spark Plugs - Set Of Four

ES#2855429 - bkr7eKT1 - Copper Spark Plugs - Set Of Four - Copper cored plugs featuring a cooler heat range ideal for chip tuned vehicles - NGK - Audi Volkswagen

Copper cored plugs featuring a cooler heat range ideal for chip tuned vehicles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
2855429
Mfg#:
BKR7EKT1
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#471101 - N90894601 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the exhaust manifold to the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471101
Mfg#:
N90894601
In Stock
$1.99 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.

Other Audi Engine Parts & Accessories

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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