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Audi A4 Engine Parts & Accessories

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ES#3625382 - 251959481K - Auxiliary Fan Switch (87-93C) - 3 Pin - Located on the lower side of the radiator, comes with paper gasket - FAE - Audi Volkswagen

Located on the lower side of the radiator, comes with paper gasket

Brand:
FAE - Corporate Logo
ES#:
3625382
Mfg#:
251959481K
Back Ordered
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5492062 - 058109217A - Camshaft Timing Chain & VVT Tensioner Kit - Resolve "diesel-like" rattling noises from the cylinder head and restore proper variable valve timing on your classic 1.8T 20V engine. - Febi - Audi Volkswagen

Resolve "diesel-like" rattling noises from the cylinder head and restore proper variable valve timing on your classic 1.8T 20V engine.

Brand:
Febi - Corporate Logo
ES#:
5492062
Mfg#:
058109217A
Special Order: No Guaranteed ETA
$399.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#5492601 - 06E906265Q - Rear Oxygen Sensor - Priced Each - Direct OE-quality replacement heated oxygen sensor to restore proper engine management, cure stubborn Check Engine Lights, and ensure your vehicle passes its next emissions test. - Febi - Audi

Direct OE-quality replacement heated oxygen sensor to restore proper engine management, cure stubborn Check Engine Lights, and ensure your vehicle passes its next emissions test. Fits the left and right position

Brand:
Febi - Corporate Logo
ES#:
5492601
Mfg#:
06E906265Q
Special Order: No Guaranteed ETA
$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5492317 - 06L903133F - Accessory Belt Tensioner - Direct OE replacement automatic serpentine belt tensioner to eliminate squealing belts, restore proper accessory drive tension, and prevent charging system failures. - Febi - Audi Volkswagen

Direct OE replacement automatic serpentine belt tensioner to eliminate squealing belts, restore proper accessory drive tension, and prevent charging system failures.

Brand:
Febi - Corporate Logo
ES#:
5492317
Mfg#:
06L903133F
Special Order: No Guaranteed ETA
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5492872 - 06L115401L - Oil Filter Housing - Cure top-end engine oil leaks, replace rounded-off hex nuts, and securely seal your drop-in cartridge oil filter on your EA888 Gen 3 engine. - Febi - Audi Volkswagen

Cure top-end engine oil leaks, replace rounded-off hex nuts, and securely seal your drop-in cartridge oil filter on your EA888 Gen 3 engine.

Brand:
Febi - Corporate Logo
ES#:
5492872
Mfg#:
06L115401L
Special Order: No Guaranteed ETA
$39.99 USD
Free Shipping
on orders $49 and up
ES#5492969 - 1J0907660F - Oil Level Sensor - Replacement sensor to cure false low-oil warnings, resolve dashboard error lights, and restore accurate oil level monitoring to your VAG vehicle. - Febi - Audi Volkswagen

Replacement sensor to cure false low-oil warnings, resolve dashboard error lights, and restore accurate oil level monitoring to your VAG vehicle. From the 2003 model year

Brand:
Febi - Corporate Logo
ES#:
5492969
Mfg#:
1J0907660F
Special Order: No Guaranteed ETA
$40.99 USD
Free Shipping
on orders $49 and up
ES#5492479 - 8R0199381S - Engine Mount - Right - Direct OE-quality replacement electrically adjustable engine mount to cure harsh idle vibrations, fix drivetrain slop, and clear active mount solenoid fault codes. - Febi - Audi

Direct OE-quality replacement electrically adjustable engine mount to cure harsh idle vibrations, fix drivetrain slop, and clear active mount solenoid fault codes.

Brand:
Febi - Corporate Logo
ES#:
5492479
Mfg#:
8R0199381S
Special Order: No Guaranteed ETA
$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5492873 - 8W0121405L - Coolant Expansion Tank - Coolant expansion tank to cure mysterious coolant loss, resolve false dashboard warnings, and restore reliable engine cooling and aesthetics to your B9 chassis Audi. - Febi - Audi

Coolant expansion tank to cure mysterious coolant loss, resolve false dashboard warnings, and restore reliable engine cooling and aesthetics to your B9 chassis Audi. For Vehicles with CYMC Engine Code Only

Brand:
Febi - Corporate Logo
ES#:
5492873
Mfg#:
8W0121405L
Special Order: No Guaranteed ETA
$78.99 USD
Free Shipping
on orders $49 and up
ES#5492288 - 06A145710P - Diverter Valve - Direct OE replacement pneumatic bypass valve to cure boost leaks, restore lost power, and eliminate that notorious deceleration "honk." - Febi - Audi Volkswagen

Direct OE replacement pneumatic bypass valve to cure boost leaks, restore lost power, and eliminate that notorious deceleration "honk."

Brand:
Febi - Corporate Logo
ES#:
5492288
Mfg#:
06A145710P
Special Order: No Guaranteed ETA
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5491817 - 06L121012L - Water Pump Kit - Includes water pump, belt, union, and hardware - Febi - Audi Volkswagen

Includes water pump, belt, union, and hardware

Brand:
Febi - Corporate Logo
ES#:
5491817
Mfg#:
06L121012L
Special Order: No Guaranteed ETA
$439.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5492507 - 050121113C4 - Thermostat (87C) - Direct OE-quality replacement thermostat to cure overheating issues, resolve poor cabin heater performance, and ensure your engine reaches and maintains its ideal operating temperature. - Febi - Audi Volkswagen

Direct OE-quality replacement thermostat to cure overheating issues, resolve poor cabin heater performance, and ensure your engine reaches and maintains its ideal operating temperature.

Brand:
Febi - Corporate Logo
ES#:
5492507
Mfg#:
050121113C4
Special Order: No Guaranteed ETA
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2866288 - 06E903119Q - Alternator Pulley - Does not include securing hardware - Febi - Audi

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

Brand:
Febi - Corporate Logo
ES#:
2866288
Mfg#:
06E903119Q
Special Order: No Guaranteed ETA
$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4342756 - 06K109210 - Lower Timing Cover - Replacement lower timing chain cover with integrated crankshaft seal - Febi - Audi Volkswagen

Replacement lower timing chain cover with integrated crankshaft seal We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4342756
Mfg#:
06K109210
Special Order: No Guaranteed ETA
$184.99

This product was last offered at the strikethrough price on
07-20-2026

$159.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2718713 - 078133551BA - Rebuilt Fuel Injector - Priced Each - Price includes $9 refundable core charge - GB Remanufacturing - Audi Volkswagen

Price includes $9 refundable core charge

Brand:
GB Remanufacturing - Corporate Logo
ES#:
2718713
Mfg#:
078133551BA
Back Ordered
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3690437 - 8D0199379ATKT - S4 Engine Mount Kit - More durable engine mounts for higher horsepower vehicles - Genuine European Volkswagen Audi - Audi

More durable engine mounts for higher horsepower vehicles

Brand:
Genuine European Volkswagen Audi - Corporate Logo
ES#:
3690437
Mfg#:
8D0199379ATKT
Back Ordered
$535.99

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

$509.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2535258 - 078911023XKT - Remanufactured Starter - Price includes refundable $90.00 core charge  - Genuine Volkswagen Audi - Audi

Price includes refundable $90.00 core charge

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2535258
Mfg#:
078911023XKT
Back Ordered
$401.99

This product was last offered at the strikethrough price on
09-03-2026

$383.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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.

Let us help you find the parts that fit your Audi

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