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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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Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#2802189 - 059919501AKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - Rein - Audi Volkswagen

Updated Green sensor with square/round connector. Please check existing sensor color 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Located in the coolant flange

Brand:
Rein - Corporate Logo
ES#:
2802189
Mfg#:
059919501AKT
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) - (19mm)

ES#4818431 - 06A129101D - Pressure Control Valve (PCV) - (19mm) - Located on the intake hose leading to the turbo inlet - Bremmen Parts - Audi Volkswagen

Located on the intake hose leading to the turbo inlet 10X Entries Into Our F80 M3 Sweepstakes

Fits up to VIN 8E-3-500 000 - Split is in the 2003 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818431
Mfg#:
06A129101D
In Stock
ON SALE! SAVE 25%
$11.99

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

$8.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Washer - Priced Each

ES#470401 - N90646702 - Washer - Priced Each - Install new hardware with your new parts. 8.4x29x1.6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 8.4x29x1.6 Used in securing the engine mounts to the upper brackets

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470401
Mfg#:
N90646702
In Stock
$4.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#2538001 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Febi - Audi Volkswagen

Secures the radiator hose flange in place. 32mm We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2538001
Mfg#:
1J0121142
In Stock
$2.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wastegate Actuator Spring Tuning Kit

ES#1832543 - FMPACTUN - Wastegate Actuator Spring Tuning Kit - Fine tune your wastegate to the exact needs of your engine - Forge - Audi Volkswagen

Fine tune your wastegate to the exact needs of your engine

Brand:
Forge - Corporate Logo
ES#:
1832543
Mfg#:
FMPACTUN
Back Ordered
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug

ES#2795704 - 06B121111KT3 - Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! - Assembled By ECS - Audi

Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795704
Mfg#:
06B121111KT3
In Stock at Vendor
ON SALE! SAVE 17%
$317.99

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

$264.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Density Line Mount Mount Kit - Track Density

ES#3183375 - 034-509-0007tdKT - Density Line Mount Mount Kit - Track Density - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3183375
Mfg#:
034-509-0007TDKT
In Stock
$264.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket

ES#263525 - 8D0253115 - Exhaust Gasket - Seals the turbocharger to the catalytic converter - Genuine Volkswagen Audi - Audi Volkswagen

Seals the turbocharger to the catalytic converter

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
263525
Mfg#:
8D0253115
Ships in 1 day
7% off MSRP

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

$70.99

This product was last offered at the strikethrough price on
09-15-2026

$65.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Retaining C-Clip - Priced Each

ES#4615935 - 06B121142A - Retaining C-Clip - Priced Each - Holds crank case breather tube in place, top of oil filter housing - URO - Audi Volkswagen

Holds crank case breather tube in place, top of oil filter housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4615935
Mfg#:
06B121142A
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose

ES#280042 - 06B133356AG - Turbo Inlet Hose - Connects the air box to the turbocharger - Genuine Volkswagen Audi - Audi

Connects the air box to the turbocharger From the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280042
Mfg#:
06B133356AG
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.

$287.99

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

$259.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Relay

ES#2899229 - 4H0951253C - Relay - Make sure your electrical components are in working order - Vemo - Audi Volkswagen

Make sure your electrical components are in working order

Brand:
Vemo - Corporate Logo
ES#:
2899229
Mfg#:
4H0951253C
In Stock
$18.99

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

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compression Dropping Head Gasket

ES#4028164 - 034-201-3100 - Compression Dropping Head Gasket - This gasket will drop compression 0.5 point over stock. - 034Motorsport - Audi Volkswagen

This gasket will drop compression 0.5 point over stock. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4028164
Mfg#:
034-201-3100
Ships in 2 Business Days
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley

ES#2562436 - 06A105243E - Crankshaft Pulley - Standard size replacement vibration dampening pulley - Febi - Audi Volkswagen

Standard size replacement vibration dampening pulley We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2562436
Mfg#:
06A105243E
Ships in 3 Business Days
$132.99

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

$128.99 USD
Free Shipping

Alternator Pulley

ES#2642857 - 06B903119D - Alternator Pulley - Does not include securing hardware - Ina - Audi

Does not include securing hardware We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2642857
Mfg#:
06B903119D
Ships in 1 day
$85.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#3220407 - 06C905115M - Ignition Coil - Priced Each - Keep your engine running smooth - Delphi - Audi Volkswagen

Keep your engine running smooth

Brand:
Delphi - Corporate Logo
ES#:
3220407
Mfg#:
06C905115M
Ships in 1 day
$43.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#2725346 - 038906051D - MAP Sensor - Measures the pressure in the turbocharger system (small design MAP sensor) - Vemo - Audi Volkswagen

Measures the pressure in the turbocharger system (small design MAP sensor)

Brand:
Vemo - Corporate Logo
ES#:
2725346
Mfg#:
038906051D
Ships in 1 Business Day
$65.99

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

$63.99 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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