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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Engine Parts & Accessories

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Diverter Valve Kit

ES#3764929 - CTS-DV-0002-B9 - Diverter Valve Kit - The CTS Turbo 2.0T recirculating DV KIT replaces the factory plastic unit which has been prone to failure from torn diaphragms, cracked plastic, and electrical malfunctions. - CTS - Audi

The CTS Turbo 2.0T recirculating DV KIT replaces the factory plastic unit which has been prone to failure from torn diaphragms, cracked plastic, and electrical malfunctions.

Brand:
CTS - Corporate Logo
ES#:
3764929
Mfg#:
CTS-DV-0002-B9
Ships in 7 Business Days
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Plug - priced each

ES#281421 - 06H115418P - Plug - priced each - Seals valve cover opening - Genuine Volkswagen Audi - Audi Volkswagen

Seals valve cover opening

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281421
Mfg#:
06H115418P
Ships in 2 Business Days
20% off MSRP

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

$3.84

This product was last offered at the strikethrough price on
10-11-2026

$3.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#4384571 - 06L121012M - Water Pump - A key component to maintaining engine temperatures - Genuine Volkswagen Audi - Audi Volkswagen

A key component to maintaining engine temperatures For Vehicles with DPAA Engine Code Only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4384571
Mfg#:
06L121012M
In Stock
7% off MSRP

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

$264.99

This product was last offered at the strikethrough price on
10-05-2026

$245.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Guides And Tensioners Kit

ES#5482169 - 06H109467ARKT - Timing Chain Guides And Tensioners Kit - This kit replaces failure-prone early tensioners and brittle plastic guide rails to prevent timing chain slack - Assembled By ECS - Audi Volkswagen

This kit replaces failure-prone early tensioners and brittle plastic guide rails to prevent timing chain slack 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482169
Mfg#:
06H109467ARKT
Ships in 3 Business Days
$257.99

This product was last offered at the strikethrough price on
10-01-2026

$244.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE TrueFlex Sensor Kit

ES#4880950 - IEELCK3 - IE TrueFlex Sensor Kit - This sensor kit is the required harness upgrade to convert your 2.0T engine to flex-fuel. - Integrated Engineering - Audi

This sensor kit is the required harness upgrade to convert your 2.0T engine to flex-fuel.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4880950
Mfg#:
IEELCK3
Ships in 4 Business Days
$241.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replacement Rear Main Seal

ES#3612266 - 462-103-171FSEAL - Replacement Rear Main Seal - Replacement Viton rubber seal for the iABED Billet Aluminum Rear Main Seal Upgrade - iABED Industries - Audi Volkswagen

Replacement Viton rubber seal for the iABED Billet Aluminum Rear Main Seal Upgrade

Brand:
iABED Industries - Corporate Logo
ES#:
3612266
Mfg#:
462-103-171FSEAL
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#4046596

Coolant Temperature Sensor - 2 Pin

ES#257175 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Genuine Volkswagen Audi - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257175
Mfg#:
06A919501A
In Stock
18% off MSRP

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

$47.82

This product was last offered at the strikethrough price on
10-05-2026

$39.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug

ES#4034813 - N90813202 - Oil Drain Plug - Includes crush washer. M14x1.5 - Elring - Audi Volkswagen

Includes crush washer. M14x1.5 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4034813
Mfg#:
N90813202
In Stock
$4.99

This product was last offered at the strikethrough price on
09-28-2026

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

Scorcher High-Performance Ignition Coil - Priced Each

ES#4810282 - 77-92005 - Scorcher High-Performance Ignition Coil - Priced Each - Experience up to 20% more spark energy compared to your factory coils. - AFE - Audi Volkswagen

Experience up to 20% more spark energy compared to your factory coils.

Brand:
AFE - Corporate Logo
ES#:
4810282
Mfg#:
77-92005
Ships in 3 Business Days
21% off MSRP

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

$72.99

This product was last offered at the strikethrough price on
10-11-2026

$58.00 USD
Free Shipping
on orders $49 and up

IWG75 VAG K03 IHI Variant 5 PSI

Maximize boost response for factory-frame turbochargers Suitable only for the IHI Variant & Inspection is suggested

Brand:
TurboSmart - Corporate Logo
ES#:
4876596
Mfg#:
TS-0645-5052
Ships in 2 Business Days
10% off MSRP

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

$254.99

This product was last offered at the strikethrough price on
10-11-2026

$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Crankshaft Bearing - Priced Each

ES#2631745 - 06H105591KSWA - Lower Crankshaft Bearing - Priced Each - With Black markings - Genuine Volkswagen Audi - Audi Volkswagen

With Black markings

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2631745
Mfg#:
06H105591KSWA
Ships in 4 Business Days
13% off MSRP

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

$51.99

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

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Grey - Priced Each

ES#4708245 - VWR900002 - RacingLine Higher Output Ignition Coil - Grey - Priced Each - 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#:
4708245
Mfg#:
VWR900002
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coils - Grey - Set of Four

ES#4708322 - VWR900002-4KT - RacingLine Higher Output Ignition Coils - Grey - 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#:
4708322
Mfg#:
VWR900002-4KT
Back Ordered
$220.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intercooler

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

Brand:
Nissens - Corporate Logo
ES#:
4823463
Mfg#:
8W0145805AD
Ships in 1 Business Day
$220.99

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

$214.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set

ES#4768293 - WHT005305B-10 - Cylinder Head Bolt Set - A full set to secure your cylinder head - Victor Reinz - Audi Volkswagen

A full set to secure your cylinder head

Brand:
Victor Reinz - Corporate Logo
ES#:
4768293
Mfg#:
WHT005305B-10
Ships in 1-3 days
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit - Priced Each

ES#4941110 - 445.950 - Fuel Injector Installation Kit - Priced Each - One kit required per injector - Elring - Audi Volkswagen Porsche

One kit required per injector 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
4941110
Mfg#:
445.950
In Stock
$7.99 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.

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