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Audi S4 Engine Parts & Accessories

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Oil Separator/Pressure Control Valve (PCV)

ES#4883691 - 06E103547AH - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Rein - Audi

Located beneath the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits from the 2013 model year

Brand:
Rein - Corporate Logo
ES#:
4883691
Mfg#:
06E103547AH
In Stock at Vendor
$124.99 USD
Free Shipping
on orders $49 and up

Coolant Pipe O-Ring - Priced Each

ES#470699 - N90765301 - Coolant Pipe O-Ring - Priced Each - Provides seal from metal to plastic cooling line end fitting. 32X4 - Genuine Volkswagen Audi - Audi Volkswagen

Provides seal from metal to plastic cooling line end fitting. 32X4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470699
Mfg#:
N90765301
In Stock
21% off MSRP

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

$2.62

This product was last offered at the strikethrough price on
06-28-2026

$2.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set - Priced Each

ES#2581263 - 078103385KKT1 - Cylinder Head Bolt Set - Priced Each - A set of 8 for one cylinder head - Elring - Audi Volkswagen

A set of 8 for one cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2581263
Mfg#:
078103385KKT1
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Air Filter

ES#252761 - 079133843A - Engine Air Filter - Keep your engine breathing fresh air - Mann - Audi

Keep your engine breathing fresh air affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mann - Corporate Logo
ES#:
252761
Mfg#:
079133843A
In Stock
$37.99

This product was last offered at the strikethrough price on
05-07-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hexagon Socket head bolt - Priced Each

ES#467512 - N10156205 - Hexagon Socket head bolt - Priced Each - M6x30 bolt used in various areas on your European vehicle - Genuine Volkswagen Audi - Audi

M6x30 bolt used in various areas on your European vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the main timing chain tensioner to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467512
Mfg#:
N10156205
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit W/ Tensioner

ES#2678391 - 06E903137TKT - Accessory Belt Kit W/ Tensioner - Keep your accessories running properly with a new tensioner and drive belt - Genuine Volkswagen Audi - Audi

Keep your accessories running properly with a new tensioner and drive belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678391
Mfg#:
06E903137TKT
Ships in 2 Business Days
$371.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley OE# 078105251Q

ES#3149801 - 078105251Q - Crankshaft Pulley OE# 078105251Q - Reduces vibrations and drives the accessory belt - Vaico - Audi Volkswagen

Reduces vibrations and drives the accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3149801
Mfg#:
078105251Q
In Stock at Vendor
$129.99

This product was last offered at the strikethrough price on
05-07-2026

$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Control Unit - Priced Each

ES#2795802 - 4A0905351A - Ignition Control Unit - Priced Each - Cure misfires and clear the check engine light - Hamburg Tech - Audi

Cure misfires and clear the check engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2795802
Mfg#:
4A0905351A
Ships in 1 Business Day
$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

shouldered Plastic Nut - Priced Each

ES#438230 - 8E0825265C - shouldered Plastic Nut - Priced Each - Install new hardware with your new parts. - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the plastic underbody linings to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
438230
Mfg#:
8E0825265C
In Stock
25% off MSRP

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

$3.99

This product was last offered at the strikethrough price on
06-28-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Socket Head Bolt - Priced Each

ES#470819 - N90808201 - Hex Socket Head Bolt - Priced Each - Replace the bolts that you've lost. 6x18.5 - Genuine Volkswagen Audi - Audi Volkswagen

Replace the bolts that you've lost. 6x18.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470819
Mfg#:
N90808201
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ContiTech Pro Series Timing Belt Kit

ES#2800540 - TB297LK2 - ContiTech Pro Series Timing Belt Kit - Includes the basics, plus the water pump and hydraulic tensioner - Continental - Audi

Includes the basics, plus the water pump and hydraulic tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2800540
Mfg#:
TB297LK2
Ships in 4 Business Days
$369.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring Set

ES#2618435 - 035906149AKT4 - Fuel Injector O-Ring Set - A complete set of upper and lower o-rings - Elring - Audi

A complete set of upper and lower o-rings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2618435
Mfg#:
035906149AKT4
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit W/ Tensioner

ES#2678390 - 06E903137QKT - Accessory Belt Kit W/ Tensioner - Keep your accessories running properly with a new tensioner and drive belt - Genuine Volkswagen Audi - Audi

Keep your accessories running properly with a new tensioner and drive belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678390
Mfg#:
06E903137QKT
Ships in 1 day
$368.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Drive Unit Spring

ES#1894629 - 06E145635A - Supercharger Drive Unit Spring - Internal spring for the supercharger drive unit - Located inside of the drive unit - Genuine Volkswagen Audi - Audi

Internal spring for the supercharger drive unit - Located inside of the drive unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1894629
Mfg#:
06E145635A
Ships in 3 Business Days
7% off MSRP

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

$395.99

This product was last offered at the strikethrough price on
02-26-2026

$368.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve Repair Kit

ES#3426986 - 1C0906517AKT - Purge Valve Repair Kit - Common cure for DTC P0441 - Includes clamps to replace factory one-time-use clamps - Assembled By ECS - Audi Volkswagen

Common cure for DTC P0441 - Includes clamps to replace factory one-time-use clamps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3426986
Mfg#:
1C0906517AKT
Ships on Aug 10, 2026
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ON SALE! SAVE 23%
$47.99

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

$36.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2678226 - 4H0951253A - Multipurpose Relay - Priced Each - Replacement 4-pin/30 amp relay - Bosch - Audi Volkswagen

Replacement 4-pin/30 amp relay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2678226
Mfg#:
4H0951253A
In Stock
74% off MSRP

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

$27.30

This product was last offered at the strikethrough price on
03-16-2026

$7.20 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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