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Audi A4 Engine Parts & Accessories

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Cat-Back Exhaust System

ES#3175516 - 252560T - Cat-Back Exhaust System - 2.5" T-304 Stainless Steel exhaust system with single tip Borla muffler - Techtonics Tuning - Audi

2.5" T-304 Stainless Steel exhaust system with single tip Borla muffler For use with aftermarket 2.5" downpipe

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175516
Mfg#:
252560T
Ships on Aug 31, 2026
$726.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Oil Pump Chain

ES#2581014 - 06A115125 - Oil Pump Chain - Drives the oil pump from the crankshaft - Iwis - Audi Volkswagen

Drives the oil pump from the crankshaft

Brand:
Iwis - Corporate Logo
ES#:
2581014
Mfg#:
06A115125
In Stock
$43.18

This product was last offered at the strikethrough price on
06-19-2026

$42.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#3411465 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - URO - Audi Volkswagen

Includes the spark plug boot 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3411465
Mfg#:
058905105
Ships in 1 Business Day
$24.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water pump pulley bolt

ES#472470 - WHT001163B - Water pump pulley bolt - Secures water pump drive pulley to balance shaft - Genuine Volkswagen Audi - Audi Volkswagen

Secures water pump drive pulley to balance shaft

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472470
Mfg#:
WHT001163B
In Stock
$1.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Compressor Clutch

ES#2104250 - 4H0260810B - A/C Compressor Clutch - Keep cool in the summer heat - Genuine Volkswagen Audi - Audi

Keep cool in the summer heat From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2104250
Mfg#:
4H0260810B
Ships in 1-2 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.

$788.99

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

$721.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Core ECU Tune With POWERlink Cable

ES#5457714 - IESOWG11 - IE Core ECU Tune With POWERlink Cable - The perfect entry point for a stock car, delivering a massive Stage 1 power bump with no additional hardware required. - Integrated Engineering - Audi

The perfect entry point for a stock car, delivering a massive Stage 1 power bump with no additional hardware required. 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5457714
Mfg#:
IESOWG11
In Stock
Starting at $179.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Timing Sprocket

ES#4471869 - 06H105209AT - Crankshaft Timing Sprocket - Toothed sprocket bolts to crankshaft - Drives the timing chain & oil pump - URO - Audi Volkswagen

Toothed sprocket bolts to crankshaft - Drives the timing chain & oil pump 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4471869
Mfg#:
06H105209AT
In Stock
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve Block Off Plate

ES#2992471 - CTSHW049 - Diverter Valve Block Off Plate - Commonly used for running aftermarket diverter and blow off valves - CTS - Audi Volkswagen

Commonly used for running aftermarket diverter and blow off valves

Brand:
CTS - Corporate Logo
ES#:
2992471
Mfg#:
CTSHW049
Ships on Oct 30, 2026
$29.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Idler Pulley

ES#2771605 - 06E903341A - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Ina - Audi

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

Brand:
Ina - Corporate Logo
ES#:
2771605
Mfg#:
06E903341A
Ships in 1 Business Day
$30.65

This product was last offered at the strikethrough price on
08-07-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Installation Kit

ES#2575492 - 1H0253115DKT1 - Catalytic Converter Installation Kit - Contains all of the hardware you need to install a new catalytic converter on your A4 - Assembled By ECS - Audi

Contains all of the hardware you need to install a new catalytic converter on your A4 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2575492
Mfg#:
1H0253115DKT1
In Stock
ON SALE! SAVE 21%
$69.99

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

$55.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.0T Coil Pack Conversion Kit - Stage 1

ES#2731575 - 002598ECS27KT - 2.0T Coil Pack Conversion Kit - Stage 1 - Includes anodized black conversion plate and stainless steel hardware - ECS - Audi Volkswagen

Includes anodized black conversion plate and stainless steel hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2731575
Mfg#:
002598ECS27KT
In Stock
ON SALE! SAVE 15%
$168.99

This product was last offered at the strikethrough price on
06-13-2026

$143.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#4766152 - 04L906461B - Mass Air Flow Sensor (MAF) - Improve your fuel economy and restore performance with a new MAF - Bremmen Parts - Audi Volkswagen

Improve your fuel economy and restore performance with a new MAF 10X Entries For Our 25th Anniversary Sweepstakes!

For models with DBPA engine code only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766152
Mfg#:
04L906461B
Ships on Sep 9, 2026
Auto Notify
ON SALE! SAVE 20%
$179.99

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

$143.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate

ES#3176154 - 06b109119fKT - Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
3176154
Mfg#:
06B109119FKT
Ships in 7 Business Days
$720.99

This product was last offered at the strikethrough price on
07-08-2026

$717.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#468875 - N10711001 - Hex Bolt - Priced Each - Install new hardware with your new parts. M10x110x90 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M10x110x90 Secures the engine mounts to the subframe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468875
Mfg#:
N10711001
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.

$13.60

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

$11.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Autobahn Autoworx 2.0T FSI Breather Hose Kit - Select Your Color

ES#4405085 - AUT-MK5-003 - Autobahn Autoworx 2.0T FSI Breather Hose Kit - Select Your Color - Replace your stock plastic pipes with silicone - Autobahn Autoworx - Audi Volkswagen

Replace your stock plastic pipes with silicone Install photos also show the Silicone Coolant Hose Set (ES4362410) which is not included but available separately.

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4405085
Mfg#:
AUT-MK5-003
Ships in 5 Business Days
Starting at $60.00 USD
Customize
Free Shipping
on orders $49 and up

Engine Oil Cooler

ES#3218909 - 028117021L - Engine Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - URO - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3218909
Mfg#:
028117021L
In Stock
$41.99 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.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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