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Audi B5 S4 2.7T

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Audi B5 S4 2.7T Engine Parts & Accessories

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Voltage Regulator

ES#280125 - 06B903803B - Voltage Regulator - Located on the rear of the alternator - Genuine Volkswagen Audi - Audi Volkswagen

Located on the rear of the alternator For vehicles with Valeo alternator only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280125
Mfg#:
06B903803B
Ships in 3 Business Days
11% off MSRP

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

$420.99

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

$375.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rubber Washer - Priced Each

ES#4727687 - 90131A305 - Rubber Washer - Priced Each - Used in securing the belly pan to the vehicle. 5x25x1.50 - Bremmen Parts - Audi Volkswagen

Used in securing the belly pan to the vehicle. 5x25x1.50 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4727687
Mfg#:
90131A305
In Stock
ON SALE! SAVE 26%
$2.03

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

$1.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cam Chain Tensioner - Cylinders 4-6 (Left)

Applies tension to the camshaft timing chain

Brand:
Bapmic - Corporate Logo
ES#:
4908317
Mfg#:
078109087F
Ships in 1 Business Day
$371.99 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 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

Exhaust Sealing Ring - Priced Each

ES#2724215 - 078145039 - Exhaust Sealing Ring - Priced Each - Seals the turbochargers to the exhaust manifold - Ajusa - Audi Volkswagen

Seals the turbochargers to the exhaust manifold

Brand:
Ajusa - Corporate Logo
ES#:
2724215
Mfg#:
078145039
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor O-Ring

ES#2953981 - 038103196 - Oil Level Sensor O-Ring - Seals oil level sensor to the oil pan - URO - Audi Volkswagen

Seals oil level sensor to the oil pan 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2953981
Mfg#:
038103196
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belly Pan Clip - Priced Each

ES#2628446 - 4A0805163 - Belly Pan Clip - Priced Each - Used in securing the belly pan to the fender liners - Vaico - Audi Volkswagen

Used in securing the belly pan to the fender liners We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2628446
Mfg#:
4A0805163
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drain Flange - 22mm

ES#4028226 - 034-145-Z016 - Drain Flange - 22mm - Includes mounting hardware and sealing o-ring! - 034Motorsport - Audi

Includes mounting hardware and sealing o-ring! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4028226
Mfg#:
034-145-Z016
Back Ordered
$37.00 USD
Free Shipping
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 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 2X Entries Into Our F80 M3 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

Valve Stem Seal - Priced Each

ES#274317 - 036109675A - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Genuine Volkswagen Audi - Audi Volkswagen

Seals the valve stem in the cylinder head. 6mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274317
Mfg#:
036109675A
In Stock
3% off MSRP

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

$23.78

This product was last offered at the strikethrough price on
10-25-2026

$22.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Gasket Set

ES#2594554 - 078129717NKT - Intake Manifold Gasket Set - Includes the left and right intake gaskets - Elring - Audi

Includes the left and right intake gaskets 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2594554
Mfg#:
078129717NKT
In Stock
$8.99

This product was last offered at the strikethrough price on
10-21-2026

$8.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#271002 - 028117021E - Oil Cooler - Common source of undiscoverable coolant leaks - Genuine Volkswagen Audi - Audi Volkswagen

Common source of undiscoverable coolant leaks From VIN 8D-Y-022961, Split is in the 2000 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271002
Mfg#:
028117021E
Ships in 1 day
11% off MSRP

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

$408.99

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

$364.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3149407 - 078121006A - Water Pump - Featuring a metal impeller and includes the gasket - Rein - Audi

Featuring a metal impeller and includes the gasket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149407
Mfg#:
078121006A
Ships in 3 Business Days
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DV Tuning Kit

ES#1832055 - FMDVTUN - DV Tuning Kit - Fine tune your Blow Off/Diverter Valve to the exact needs of your engine with this complete tuning kit. - Forge - Audi Volkswagen

Fine tune your Blow Off/Diverter Valve to the exact needs of your engine with this complete tuning kit.

Brand:
Forge - Corporate Logo
ES#:
1832055
Mfg#:
FMDVTUN
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set

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

A set of 8 for one cylinder head 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2581263
Mfg#:
078103385KKT1
In Stock
$35.99 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.

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