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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Parts & Accessories

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Coolant Expansion Tank Cap

ES#4060279 - 4M0121321Q - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4060279
Mfg#:
4M0121321Q
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.

$59.99

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

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Pulley - 4 Bolt

ES#3181924 - 06M121031D - Water Pump Pulley - 4 Bolt - 4 Bolt pulley that attaches to the water pump - Genuine Volkswagen Audi - Audi

4 Bolt pulley that attaches to the water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181924
Mfg#:
06M121031D
Ships in 2 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.

$211.99

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

$196.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Tube

ES#3971327 - 06M103217DD - Crankcase Breather Tube - Restore proper crankcase ventilation and cure vacuum leaks with this direct-replacement breather hose, featuring an integrated check valve for reliable PCV operation. - Genuine Volkswagen Audi - Audi

Restore proper crankcase ventilation and cure vacuum leaks with this direct-replacement breather hose, featuring an integrated check valve for reliable PCV operation.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3971327
Mfg#:
06M103217DD
Ships in 1-2 days
12% off MSRP

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

$136.99

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

$120.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Active Motor Mount Resistor Bypass - Priced Each

ES#4846369 - 034-708-0006 - Active Motor Mount Resistor Bypass - Priced Each - Used to remove the soft code caused by replacing the failure-prone factory "active" mounts with 034Motorsport Density Line & Motorsport Spec Engine Mounts. One required per mount. - 034Motorsport - Audi

Used to remove the soft code caused by replacing the failure-prone factory "active" mounts with 034Motorsport Density Line & Motorsport Spec Engine Mounts. One required per mount. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4846369
Mfg#:
034-708-0006
Back Ordered
$14.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Variable Valve Timing (VVT) Oil Control Valve - Priced Each

ES#4696268 - 06M109257AF - Variable Valve Timing (VVT) Oil Control Valve - Priced Each - Solenoid Pressure Valve Screw - Genuine Volkswagen Audi - Audi

Solenoid Pressure Valve Screw

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4696268
Mfg#:
06M109257AF
In Stock
7% off MSRP

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

$148.99

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

$137.99 USD
Free Shipping
on orders $49 and up

Complete Piston Head - Priced Each

ES#3181894 - 06M107066AB - Complete Piston Head - Priced Each - Cylinders 1-3 - Genuine Volkswagen Audi - Audi

Cylinders 1-3 For pistons stamped with 06M107099J, 06M107100J or 06M107100C

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181894
Mfg#:
06M107066AB
Ships in 2 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.

$148.99

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

$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#5470814 - 06M103515H - Oil Separator/Pressure Control Valve (PCV) - Also known as the "PCV". Located on the valve cover - URO - Audi Porsche

Also known as the "PCV". Located on the valve cover 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO - Corporate Logo
ES#:
5470814
Mfg#:
06M103515H
In Stock
$105.99

This product was last offered at the strikethrough price on
05-25-2026

$94.99 USD
Free Shipping
on orders $49 and up

Exhaust Gasket

ES#3180958 - 8W0253115G - Exhaust Gasket - Seals the turbocharger to the catalytic converter - Genuine Volkswagen Audi - Audi

Seals the turbocharger to the catalytic converter

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3180958
Mfg#:
8W0253115G
In Stock
8% off MSRP

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

$25.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Stage 2 ECU Tune With POWERlink Cable

ES#5504318 - IESOVZ12 - IE Stage 2 ECU Tune With POWERlink Cable - Stage 2 ECU tune that provides the necessary calibration for aftermarket downpipes and aggressive exhaust crackles while maintaining Stage 1 power levels for 2017-2020 Audi B9 S4, S5, and SQ5 models. - Integrated Engineering - Audi

Stage 2 ECU tune that provides the necessary calibration for aftermarket downpipes and aggressive exhaust crackles while maintaining Stage 1 power levels for 2017-2020 Audi B9 S4, S5, and SQ5 models.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5504318
Mfg#:
IESOVZ12
In Stock
Starting at $184.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cap

ES#4057820 - 06M103485D - Oil Cap - Clean your engine bay up with a new oil cap - Genuine Volkswagen Audi - Audi

Clean your engine bay up with a new oil cap From production date 03/02/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4057820
Mfg#:
06M103485D
Ships in 1-2 days
3% off MSRP

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

$28.99

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

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Cold Air Intake System

ES#3988146 - 034-108-1013 - X34 Carbon Fiber Cold Air Intake System - Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package - 034Motorsport - Audi

Delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3988146
Mfg#:
034-108-1013
Ships in 2 Business Days
$908.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Charge Pipe Kit

This includes 3 reinforced silicone hoses, and 1 aluminum charge air tube. For vehicles that have the Wagner Competition Intercooler

Brand:
Wagner Tuning - Corporate Logo
ES#:
4017656
Mfg#:
210001120
Ships in 1 Business Day
$450.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Serpentine Belt

ES#4714700 - 06M903137T - Serpentine Belt - Replace your worn belt today before it breaks - Gates - Audi

Replace your worn belt today before it breaks

Brand:
Gates - Corporate Logo
ES#:
4714700
Mfg#:
06M903137T
Ships in 1 Business Day
$34.99

This product was last offered at the strikethrough price on
05-01-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Build Your Own Power Package - Audi B9 S4 3.0T

ES#4017052 - B9S4PWRPK - Build Your Own Power Package - Audi B9 S4 3.0T - Go from mild to wild! Select the options you want for your build. - Assembled By ECS - Audi

Go from mild to wild! Select the options you want for your build. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017052
Mfg#:
B9S4PWRPK
Back Ordered
ON SALE!
Starting at $0.00 USD
Customize
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.

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