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Audi A4 Engine Parts & Accessories

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Upgraded Aluminum Coolant Pipe - Return (06E121065N)

ES#4376374 - 06E 121065N - Upgraded Aluminum Coolant Pipe - Return (06E121065N) - Main return pipe that connects to the heater core hoses and the engine. Made from high-grade Aluminum vs OEM Plastic! - URO Premium - Audi

Main return pipe that connects to the heater core hoses and the engine. Made from high-grade Aluminum vs OEM Plastic! 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO Premium - Corporate Logo
ES#:
4376374
Mfg#:
06E 121065N
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve

ES#3085659 - 06H145710C - Diverter Valve - Revised diaphragm-based diverter valve - Pierburg - Audi Volkswagen

Revised diaphragm-based diverter valve

Brand:
Pierburg - Corporate Logo
ES#:
3085659
Mfg#:
06H145710C
In Stock
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Iridium Spark Plugs - Set Of Four

ES#8925 - BKR7EIX4cly - Iridium Spark Plugs - Set Of Four - Long lasting Iridium alternative to OE Platinum core plugs - NGK - Audi Volkswagen

Long lasting Iridium alternative to OE Platinum core plugs We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
8925
Mfg#:
BKR7EIX4CLY
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbocharger

ES#4351788 - 06L145874E - Turbocharger - Complete turbocharger assembly to replace your failed unit - Restore boost and get going! - IHI Turbo - Audi

Complete turbocharger assembly to replace your failed unit - Restore boost and get going!

Brand:
IHI Turbo - Corporate Logo
ES#:
4351788
Mfg#:
06L145874E
In Stock
$1359.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Main Seal

ES#4370260 - 034-202-6003 - Billet Aluminum Rear Main Seal - Permanent fix for that leaking rear main seal - 034Motorsport - Audi Volkswagen

Permanent fix for that leaking rear main seal 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4370260
Mfg#:
034-202-6003
In Stock
$145.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Billet Aluminum Rear Main Seal Upgrade - With Installation Tool & Sealant

ES#4608304 - 034-202-6004KT - 034 Billet Aluminum Rear Main Seal Upgrade - With Installation Tool & Sealant - Permanent fix for that leaking rear main seal. Includes recommended installation tool and Dirko sealant to complete the job. - Assembled By ECS - Audi Volkswagen

Permanent fix for that leaking rear main seal. Includes recommended installation tool and Dirko sealant to complete the job. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4608304
Mfg#:
034-202-6004KT
In Stock
$179.99

This product was last offered at the strikethrough price on
08-10-2026

$155.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

ECS Tuning Street Shield Aluminum Skid Plate Kit

ES#2771379 - 003251ECS01AKTKT - ECS Tuning Street Shield Aluminum Skid Plate Kit - Protect your vehicle's oil pan & electronic steering rack with this 4mm thick aluminum skid plate - ECS - Audi

Protect your vehicle's oil pan & electronic steering rack with this 4mm thick aluminum skid plate 10X Entries Into Our F80 M3 Sweepstakes
Fits B8 chassis A4/S4/A5/S5 models up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
2771379
Mfg#:
003251ECS01AKTKT
Ships in 8 Business Days
ON SALE! SAVE 10%
$416.99

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

$375.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump Piston Upgrade Kit

ES#4499603 - 034-106-6051 - High Pressure Fuel Pump Piston Upgrade Kit - Unlock up to 50% more flow over the factory high pressure fuel pump - 034Motorsport - Audi Volkswagen

Unlock up to 50% more flow over the factory high pressure fuel pump 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4499603
Mfg#:
034-106-6051
In Stock
$337.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit - Select Plus

ES#4623806 - CKP0233 - Timing Chain Kit - Select Plus - Includes chains, tensioners, rails, timing covers, cam bridge, cam adjuster, oil pump chain & tensioner, oil pan, drive belt, gasket sealant and necessary hardware - Rein - Audi

Includes chains, tensioners, rails, timing covers, cam bridge, cam adjuster, oil pump chain & tensioner, oil pan, drive belt, gasket sealant and necessary hardware 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From production date 7/1/2013

Brand:
Rein - Corporate Logo
ES#:
4623806
Mfg#:
CKP0233
In Stock
$936.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS K04-X Hybrid Turbo Upgrade

ES#4365313 - CTS-TR-1070X - CTS K04-X Hybrid Turbo Upgrade - This turbo will support 400HP With proper tuning and supporting mods! - CTS - Audi

This turbo will support 400HP With proper tuning and supporting mods!

Brand:
CTS - Corporate Logo
ES#:
4365313
Mfg#:
CTS-TR-1070X
Ships in 7 Business Days
$1999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hi-Volume Fuel Pump Upgrade Kit

ES#2226090 - 10-127-100K - Hi-Volume Fuel Pump Upgrade Kit - Flow Rates up to 50% higher on 2.0T FSI engines, easily installed during a cam follower service! - Autotech - Audi Volkswagen

Flow Rates up to 50% higher on 2.0T FSI engines, easily installed during a cam follower service!

Brand:
Autotech - Corporate Logo
ES#:
2226090
Mfg#:
10-127-100K
In Stock
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Four

ES#2762373 - 06K905601BKT - Spark Plugs - Set Of Four - NGK revision of genuine plugs - Genuine Volkswagen Audi - Audi Volkswagen

NGK revision of genuine plugs

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762373
Mfg#:
06K905601BKT
In Stock
$54.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FDS Front-Mount Intercooler Kit - Silver

ES#3470702 - IETPCK1 - FDS Front-Mount Intercooler Kit - Silver - Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods! - Integrated Engineering - Audi

Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods! Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3470702
Mfg#:
IETPCK1
Ships in 1 Business Day
$1034.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi & VW Direct Injection Carbon Cleaning Kit - Level 2

ES#4000812 - 034-108-Z05KT - Audi & VW Direct Injection Carbon Cleaning Kit - Level 2 - Featuring 034 Motorsport direct injection port cleaning tool, walnut shell blast media (50lbs), and a Bav Auto V3 Media Blaster Tank - Assembled By ECS - Audi Volkswagen

Featuring 034 Motorsport direct injection port cleaning tool, walnut shell blast media (50lbs), and a Bav Auto V3 Media Blaster Tank 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4000812
Mfg#:
034-108-Z05KT
In Stock
ON SALE! SAVE 18%
$342.99

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

$279.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Ultimate High Pressure Fuel Pump Upgrade Kit

ES#2873046 - 012570ecs01KT - Ultimate High Pressure Fuel Pump Upgrade Kit - Common fix for P2294 CEL code. New OE fuel pump with Autotech internal upgrades pre-installed and includes new cam follower with replacement hardware - Assembled By ECS - Audi Volkswagen

Common fix for P2294 CEL code. New OE fuel pump with Autotech internal upgrades pre-installed and includes new cam follower with replacement hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2873046
Mfg#:
012570ECS01KT
In Stock
$841.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.5" High Flow Catalytic Converter

ES#2960018 - 034-105-4023 - 3.5" High Flow Catalytic Converter - Complete drop-in upgrade will bolt up to stock/Stock Fit Turbo - 034Motorsport - Audi

Complete drop-in upgrade will bolt up to stock/Stock Fit Turbo 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2960018
Mfg#:
034-105-4023
Back Ordered
$449.00 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.

Let us help you find the parts that fit your Audi

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