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Audi B9 A4 Quattro 2.0T Engine Parts & Accessories

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ES#1899296 - 007603014104 - Aluminum Drain Plug Washer - Priced Each - Replace with every oil service to prevent leaks. M14x20x1.5 - Fischer and Plath - Audi Volkswagen Porsche

Replace with every oil service to prevent leaks. M14x20x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fischer and Plath - Corporate Logo
ES#:
1899296
Mfg#:
007603014104
In Stock
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4830569 - 06L903133D - Accessory Belt Tensioner - Keep your drive belt tight - Bremmen Parts - Audi Volkswagen

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830569
Mfg#:
06L903133D
In Stock
ON SALE! SAVE 20%
$41.99

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

$33.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3437389 - 4H0959126B - A/C Pressure Switch - Prevents excess pressure from building within the system - Hella - Audi

Prevents excess pressure from building within the system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
3437389
Mfg#:
4H0959126B
Ships in 3 Business Days
$62.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4766154 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings. Includes O-ring - Bremmen Parts - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings. Includes O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766154
Mfg#:
06A919501A
In Stock
ON SALE! SAVE 20%
$14.99

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

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3638796 - 06L103483A - Upper Timing Cover Gasket - Common source of leaks on the cylinder head - Elring - Audi Volkswagen

Common source of leaks on the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3638796
Mfg#:
06L103483A
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.76" stainless steel with your choice of tip style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4159433
Mfg#:
B9A4RESONATED
Ships in 3 Business Days
Starting at $2411.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3561738 - 8W0399156BH - Transmission Mount - Includes bracket and rubber mounting - Genuine Volkswagen Audi - Audi

Includes bracket and rubber mounting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3561738
Mfg#:
8W0399156BH
Ships in 3 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.

$148.33

This product was last offered at the strikethrough price on
02-23-2026

$133.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4004062 - CTS-EXH-CB-0019 - Cat-Back Exhaust System  - 3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips - CTS - Audi

3.0" tig welded T304 stainless steel with dual 4.0" polished stainless tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
CTS - Corporate Logo
ES#:
4004062
Mfg#:
CTS-EXH-CB-0019
Ships in 8 Business Days
$1199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4871989 - 8W0121081AN - Coolant Expansion Tank Bypass Line - A line that recycles overflown fluid back into the system - Bremmen Parts - Audi

A line that recycles overflown fluid back into the system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871989
Mfg#:
8W0121081AN
In Stock
ON SALE! SAVE 20%
$49.99

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

$39.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4715589 - 06K121143PRM - Metal Cooling Hose Adapter/Breather Assembly - Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! - URO - Audi Volkswagen

Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4715589
Mfg#:
06K121143PRM
In Stock
$26.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2739719 - WHT005305KT - Cylinder Head Bolt Set - A full set to secure your cylinder head - Genuine Volkswagen Audi - Audi Volkswagen Porsche

A full set to secure your cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2739719
Mfg#:
WHT005305KT
In Stock
$45.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3220558 - 06H109509P - Timing Chain Guide Rail - Lower - Lower left rail on the small chain - Bremmen Parts - Audi Volkswagen

Lower left rail on the small chain affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3220558
Mfg#:
06H109509P
In Stock
ON SALE! SAVE 20%
$16.99

This product was last offered at the strikethrough price on
05-29-2026

$13.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#280753 - 06E109641A - Valve Spring Seat - priced each - Keeps the valve spring in place - Genuine Volkswagen Audi - Audi Volkswagen

Keeps the valve spring in place affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280753
Mfg#:
06E109641A
In Stock
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3419340 - TS-VW-393A - Turbo Muffler Delete - Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete - Torque Solution - Audi Volkswagen

Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Torque Solution - Corporate Logo
ES#:
3419340
Mfg#:
TS-VW-393A
In Stock
3% off MSRP

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

$94.43

This product was last offered at the strikethrough price on
06-24-2026

$91.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2639850 - 06K109469M - Timing Chain Guide Rail - Upper - Right rail on the chain that connects to the camshaft - Genuine Volkswagen Audi - Audi Volkswagen

Right 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#:
2639850
Mfg#:
06K109469M
In Stock
25% off MSRP

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

$43.78

This product was last offered at the strikethrough price on
06-24-2026

$33.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4163617 - 06L121012L - Water Pump  - Includes gasket and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Includes gasket and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4163617
Mfg#:
06L121012L
In Stock
43% off MSRP

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

$244.99

This product was last offered at the strikethrough price on
02-24-2026

$139.99 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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