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Audi A4 Engine Parts & Accessories

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Oxygen Sensor - Priced Each

ES#11898 - 16978 - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
11898
Mfg#:
16978
Ships in 1 Business Day
$128.99

This product was last offered at the strikethrough price on
05-19-2026

$118.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit - Priced Each

ES#4742567 - 06D998907 - Fuel Injector Installation Kit - Priced Each - One kit required per injector - Elring - Audi Volkswagen

One kit required per injector 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4742567
Mfg#:
06D998907
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Golf R OEM Fuel Injectors - Set Of Four

ES#2497386 - 06F998036F - Golf R OEM Fuel Injectors - Set Of Four - Upgraded fuel injectors for FSI engines - Made for VW/Audi by Bosch - Genuine Volkswagen Audi - Audi Volkswagen

Upgraded fuel injectors for FSI engines - Made for VW/Audi by Bosch For vehicles with FSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2497386
Mfg#:
06F998036F
Ships in 4 Business Days
$1539.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve with Hardware

ES#3102559 - 06E906517AKT - Purge Valve with Hardware - Common fix for error code DTC#P0441 - Assembled By ECS - Audi Volkswagen

Common fix for error code DTC#P0441 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3102559
Mfg#:
06E906517AKT
In Stock
$35.99

This product was last offered at the strikethrough price on
10-28-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Waste Gate Frequency Control N75 Valve

ES#2574871 - 06F906283F - Waste Gate Frequency Control N75 Valve - Controls the boost pressure on turbocharger systems - Pierburg - Audi Volkswagen

Controls the boost pressure on turbocharger systems

Brand:
Pierburg - Corporate Logo
ES#:
2574871
Mfg#:
06F906283F
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Guide Rail - Upper

ES#2639851 - 06K109469N - Timing Chain Guide Rail - Upper - Upper rail on the chain that connects to the camshaft - Genuine Volkswagen Audi - Audi Volkswagen

Upper rail on the chain that connects to the camshaft From production date 7/2/2013

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2639851
Mfg#:
06K109469N
In Stock
28% off MSRP

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

$45.18

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

$32.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Single Exit

ES#2985787 - 49-46403 - Cat-Back Exhaust System - Single Exit - 2.75" reduced to 2.5" Stainless downpipe to dual 2.25" exhaust with Polished tips - AFE - Audi

2.75" reduced to 2.5" Stainless downpipe to dual 2.25" exhaust with Polished tips

Brand:
AFE - Corporate Logo
ES#:
2985787
Mfg#:
49-46403
Ships in 3 Business Days
20% off MSRP

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

$1915.00

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

$1532.00 USD

Silicone Intercooler Hose Kit

ES#2848048 - CTSSILB7ITKIT - Silicone Intercooler Hose Kit - Add a better flowing, stronger set of hoses to your vehicle and keep it running strong. - CTS - Audi

Add a better flowing, stronger set of hoses to your vehicle and keep it running strong.

Brand:
CTS - Corporate Logo
ES#:
2848048
Mfg#:
CTSSILB7ITKIT
Ships on Dec 18, 2026
ON SALE! SAVE 15%
$179.99

This product was last offered at the strikethrough price on
09-29-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Additional Water Pump

ES#1894615 - 059121012B - Additional Water Pump - Connects to the turbo return hose and heater core supply hose - Genuine Volkswagen Audi - Audi Volkswagen

Connects to the turbo return hose and heater core supply hose From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1894615
Mfg#:
059121012B
Ships in 3 Business Days
9% off MSRP

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

$208.99

This product was last offered at the strikethrough price on
10-05-2026

$190.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

K03 Turbocharger With ECS Installation Kit (06D145701J)

ES#3143326 - 06D145701JKT1 - K03 Turbocharger With ECS Installation Kit (06D145701J) - Restore your boost levels and get going! - BorgWarner - Audi

Restore your boost levels and get going!

Brand:
BorgWarner - Corporate Logo
ES#:
3143326
Mfg#:
06D145701JKT1
Ships in 1 Business Day
$2163.99

This product was last offered at the strikethrough price on
07-15-2026

$1525.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#1892705 - 16601 - Cat-Back Exhaust System - 2.25" stainless steel with dual 4" polished stainless tips - Magnaflow - Audi

2.25" stainless steel with dual 4" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
1892705
Mfg#:
16601
Back Ordered
$1521.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Left

ES#4145049 - 8R0199381C - Engine Mount - Left - Eliminate excessive engine vibrations - URO - Audi Porsche

Eliminate excessive engine vibrations 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4145049
Mfg#:
8R0199381C
Ships in 1 Business Day
$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#1876665 - 06B903137D - Accessory Belt - Replace your cracked or worn belt - Continental - Audi

Replace your cracked or worn belt We Price Match - Give Us A Call or Chat!
Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Continental - Corporate Logo
ES#:
1876665
Mfg#:
06B903137D
In Stock
$24.99

This product was last offered at the strikethrough price on
07-06-2026

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

VW | Repair Kit, camshaft mounting bracket | VAICO Expert Kits+

ES#4859662 - 06H103144KKIT2 - VW | Repair Kit, camshaft mounting bracket | VAICO Expert Kits+ - Vaico - Audi Volkswagen

We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4859662
Mfg#:
06H103144KKIT2
Ships in 1 Business Day
$266.99

This product was last offered at the strikethrough price on
07-02-2026

$252.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2535176 - 8E0121403 - Coolant Expansion Tank - Keep your cooling system efficient - URO - Audi

Keep your cooling system efficient 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535176
Mfg#:
8E0121403
In Stock
$27.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Cover Gasket

ES#3638796 - 06L103483A - Upper Timing Cover Gasket - Common source of leaks on the cylinder head - Elring - Audi Volkswagen

Common source of leaks on the cylinder head 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3638796
Mfg#:
06L103483A
In Stock
$24.99

This product was last offered at the strikethrough price on
10-26-2026

$22.99 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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