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Audi A4 Engine Parts & Accessories

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ES#4220053 - 49-36419-C - MACH Force-Xp Stainless Steel Axle-Back Exhaust System - Resonated 3" to 2-1/2" 304 Stainless Steel with carbon fiber tips - AFE - Audi

Resonated 3" to 2-1/2" 304 Stainless Steel with carbon fiber tips

Brand:
AFE - Corporate Logo
ES#:
4220053
Mfg#:
49-36419-C
Back Ordered
20% off MSRP

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

$1441.99

This product was last offered at the strikethrough price on
11-06-2026

$1153.00 USD
ES#4220056 - 49-36420-B - MACH Force-Xp 304 Stainless Steel Cat-Back Exhaust System - Resonated 3" to 2-1/2" with 4" black tips - AFE - Audi

Resonated 3" to 2-1/2" with 4" black tips

Brand:
AFE - Corporate Logo
ES#:
4220056
Mfg#:
49-36420-B
Back Ordered
20% off MSRP

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

$2105.00

This product was last offered at the strikethrough price on
05-27-2026

$1684.00 USD
ES#2796079 - 8E0399105HEKT - Complete Transmission Mount Kit - Includes mount and hardware to reduce driveline vibrations - Assembled By ECS - Audi

Includes mount and hardware to reduce driveline vibrations 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Fits 5-speed transmission codes ENN, FPS, FTW, & GBN

Brand:
Assembled By ECS - Corporate Logo
ES#:
2796079
Mfg#:
8E0399105HEKT
Back Ordered
$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5434717 - 078903137BJ2KT - Accessory Belt And Tensioner Kit  - Keep your accessories running properly with a new tensioner and drive belt - Assembled By ECS - Audi

Keep your accessories running properly with a new tensioner and drive belt 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
For AVK engine codes only

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434717
Mfg#:
078903137BJ2KT
Back Ordered
$199.99

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

$191.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2586571 - 8E0121251A2KT - Radiator Installation Kit - Includes everything you need to install a new radiator - Assembled By ECS - Audi

Includes everything you need to install a new radiator 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Manual transmission vehicles

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586571
Mfg#:
8E0121251A2KT
Back Ordered
$249.80

This product was last offered at the strikethrough price on
08-04-2026

$238.14 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2219685 - 06A103245F - Emissions Service Kit - Complete PCV Kit for your engine - Assembled By ECS - Audi

Complete PCV Kit for your engine 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
From VIN 8E-4-000001, split is in the 2004 model year - with 25mm relief valve

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219685
Mfg#:
06A103245F
Back Ordered
$562.12 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2973037 - 068117021BKT2 -  Oil Cooler Replacement Kit - Stage 2 - Includes the necessary components to replace your oil cooler and perform an engine oil service - Assembled By ECS - Audi

Includes the necessary components to replace your oil cooler and perform an engine oil service 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Up to VIN 8D-X-199999, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2973037
Mfg#:
068117021BKT2
Back Ordered
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2608143 - 050121113CKT4 - Cooling System Refresh Kit - Level 3 - Replace critical cooling system components and perform a proper coolant system flush! - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Engine codes AEB & ATW from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608143
Mfg#:
050121113CKT4
Back Ordered
$200.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#5434714 - 078903137BJKT - Accessory Belt And Tensioner Kit  - Keep your accessories running properly with a new tensioner and drive belt - Assembled By ECS - Audi

Keep your accessories running properly with a new tensioner and drive belt 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
For AVK engine codes only

Brand:
Assembled By ECS - Corporate Logo
ES#:
5434714
Mfg#:
078903137BJKT
Back Ordered
$184.99

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

$176.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2532258 - 06C905115LKT3 - Ignition Service Kit - Includes six Meyle coil packs and six NGK spark plugs - Assembled By ECS - Audi

Includes six Meyle coil packs and six NGK spark plugs 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2532258
Mfg#:
06C905115LKT3
Back Ordered
$321.99

This product was last offered at the strikethrough price on
06-25-2026

$246.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4017066 - b618tpplvl1KT1 - B6 A4 1.8T Performance Pack - Level 1  - Entry-level performance kit composed of a careful selection of our best sellers, offering valuable performance gains at a 'bang for the buck' price point - Assembled By ECS - Audi

Entry-level performance kit composed of a careful selection of our best sellers, offering valuable performance gains at a 'bang for the buck' price point 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Fits up to VIN 8E-3-500000, split is in the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017066
Mfg#:
B618TPPLVL1KT1
Back Ordered
$398.99

This product was last offered at the strikethrough price on
07-17-2026

$374.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2102459 - B6A440KSKWLF4 - ECS Tuning 40k Service Kit - With Large Oil Filter - Everything you need to perform the recommend 40k mile service on your 1.8T - Assembled By ECS - Audi

Everything you need to perform the recommend 40k mile service on your 1.8T 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2102459
Mfg#:
B6A440KSKWLF4
Back Ordered
$245.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2762257 - 06C253031JKT - Exhaust Manifold Installation Kit - Includes the necessary hardware and gasket to install the manifold - Assembled By ECS - Audi

Includes the necessary hardware and gasket to install the manifold 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762257
Mfg#:
06C253031JKT
Back Ordered
$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#7557 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Buy it all together & save. Includes ECS Cam locking tool. 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
7557
Mfg#:
078198675
Back Ordered
$474.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1893862 - 078198675 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes ECS Cam Locking Tool. 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
1893862
Mfg#:
078198675
Back Ordered
$528.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2586882 - 8D0121403DKT -  Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586882
Mfg#:
8D0121403DKT
Back Ordered
$59.99

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

$57.99 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.

Let us help you find the parts that fit your Audi

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