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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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Dowel Pin - Priced Each

ES#1597681 - 8D0805121 - Dowel Pin - Priced Each - Secures the belly pan to the vehicle. 6x18 - Genuine Volkswagen Audi - Audi Volkswagen

Secures the belly pan to the vehicle. 6x18

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1597681
Mfg#:
8D0805121
Ships in 5 Business Days
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
09-16-2026

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

Connecting Rod Bolt - Priced Each

ES#5340221 - WHT006219 - Connecting Rod Bolt - Priced Each - Secures the connecting end caps. M8x1x50 - Elring - Audi Volkswagen

Secures the connecting end caps. M8x1x50 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5340221
Mfg#:
WHT006219
Ships in 10 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#4027470 - 036109675A - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Corteco - Audi Volkswagen Porsche

Seals the valve stem in the cylinder head. 6mm

Brand:
Corteco - Corporate Logo
ES#:
4027470
Mfg#:
036109675A
Ships in 3 Business Days
$3.99

This product was last offered at the strikethrough price on
08-13-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2712768 - 078906265AA - Oxygen Sensor - Priced Each - Located behind the catalytic converter - Vemo - Audi Volkswagen

Located behind the catalytic converter

Brand:
Vemo - Corporate Logo
ES#:
2712768
Mfg#:
078906265AA
Ships in 2 Business Days
$141.67 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly (06B121111K)

ES#2813041 - 06B121111K - Thermostat Assembly (06B121111K) - Includes housing, gasket & sensor - Hamburg Tech - Audi

Includes housing, gasket & sensor We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813041
Mfg#:
06B121111K
Ships in 2 Business Days
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bleeder Valve

ES#257303 - 035103245A - Bleeder Valve - Located under the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Located under the intake manifold Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257303
Mfg#:
035103245A
Ships in 1-2 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.

$39.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#2627305 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Rein - Audi Volkswagen

Connects the oil cooler to the hard water pipe 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627305
Mfg#:
06B121058S
In Stock
$6.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Hose Kit

ES#2214900 - 06A198298 - Crankcase Breather Hose Kit - Includes the "L" & "T" shaped breather hoses, breather valve, and tube with hardware - Assembled By ECS - Audi

Includes the "L" & "T" shaped breather hoses, breather valve, and tube with hardware 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2214900
Mfg#:
06A198298
In Stock
ON SALE! SAVE 24%
$61.57

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

$46.55 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electric Cooling Fan - Left (400mm)

ES#2598439 - 8E0959455K - Electric Cooling Fan - Left (400mm) - Keep your cooling system operating properly - Febi - Audi

Keep your cooling system operating properly We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2598439
Mfg#:
8E0959455K
Ships in 2 Business Days
$143.99

This product was last offered at the strikethrough price on
04-11-2026

$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#2731716 - 8E1820031 - Heater Core - Stop coolant loss and cure a fogged windshield - Vemo - Audi

Stop coolant loss and cure a fogged windshield

Brand:
Vemo - Corporate Logo
ES#:
2731716
Mfg#:
8E1820031
Ships in 2 Business Days
$138.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Rail Spacer - Priced Each

ES#3524645 - 034-106-7021 - Billet Fuel Rail Spacer - Priced Each - For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors - 034Motorsport - Audi Volkswagen

For spacing out 1.8T and 2.7T fuel rail when using longer than stock injectors 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3524645
Mfg#:
034-106-7021
Ships in 3 Business Days
$6.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump Filter

ES#4864897 - 8D0906321 - Leak Detection Pump Filter - Cleans the air entering the leak detection pump - Vaico - Audi Volkswagen

Cleans the air entering the leak detection pump We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4864897
Mfg#:
8D0906321
Ships in 1-2 days
$65.99

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

$45.99 USD
Free Shipping
on orders $49 and up

Pressure Control Valve (PCV)

ES#2828405 - 06F129101N - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - URO - Audi Volkswagen

Also called the "breather valve" or "oil separator" 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828405
Mfg#:
06F129101N
Ships in 2 Business Days
ON SALE!
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#2582070 - 06B121132E - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - Vaico - Audi

Located at the rear of cylinder head, includes o-rings We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2582070
Mfg#:
06B121132E
Ships in 2 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - black

ES#2681777 - 06A919081J - Oil Pressure Switch - black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - Vemo - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR

Brand:
Vemo - Corporate Logo
ES#:
2681777
Mfg#:
06A919081J
Ships in 2 Business Days
$12.99

This product was last offered at the strikethrough price on
04-10-2026

$12.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Tube

ES#7934 - 06A103213F - Crankcase Breather Tube - Connects the oil filter adapter to the three-way valve housing - Genuine Volkswagen Audi - Audi Volkswagen

Connects the oil filter adapter to the three-way valve housing Up to VIN 8E-3-500000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
7934
Mfg#:
06A103213F
Ships in 3 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.

$146.99

This product was last offered at the strikethrough price on
09-16-2026

$136.99 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.

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