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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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ES#4858532 - 2Q0121321A - Coolant Expansion Tank Cap  - Keep proper pressure in your coolant system - Bremmen Parts - Audi Volkswagen Porsche

Keep proper pressure in your coolant system 10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4858532
Mfg#:
2Q0121321A
In Stock
ON SALE! SAVE 39%
$17.99

This product was last offered at the strikethrough price on
11-07-2026

$10.99 USD
Free Shipping
on orders $49 and up
ES#3955 - 06B109119F - Timing Belt - The most important belt on your engine - Continental - Audi Volkswagen

The most important belt on your engine We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
3955
Mfg#:
06B109119F
In Stock
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2794960 - IERHVA2RD - Forged Rifle Drilled H-Beam Connecting Rods  - Set of 4, rifle drilled - Integrated Engineering - Audi Volkswagen

Set of 4, rifle drilled 2X Entries For Our Spin To Win Sweepstakes!

Drop-In rods for use with OEM pistons, or pistons with 19mm wrist pin

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794960
Mfg#:
IERHVA2RD
Ships in 4 Business Days
$657.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3175528 - 252576T - Cat-Back Exhaust System  - 2.5" T-304 Stainless Steel exhaust system with Borla mufflers - Techtonics Tuning - Audi

2.5" T-304 Stainless Steel exhaust system with Borla mufflers For use with aftermarket 2.5" downpipe

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175528
Mfg#:
252576T
Ships on Dec 3, 2026
$1314.50 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4920518 - 3R0959126 - A/C Pressure Safety Switch - Prevents excess pressure from building within the system - URO - Audi

Prevents excess pressure from building within the system 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
4920518
Mfg#:
3R0959126
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2467 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Febi - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2467
Mfg#:
N90316802
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3559174 - 462-121-132B6 - Cast Aluminum Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - iABED Industries - Audi

Located at the rear of cylinder head, includes o-rings

Brand:
iABED Industries - Corporate Logo
ES#:
3559174
Mfg#:
462-121-132B6
Back Ordered
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4039578 - 8E1819371T - Coolant Supply Hose - Connects the coolant flange to the heater core pipe - Rein - Audi

Connects the coolant flange to the heater core pipe 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4039578
Mfg#:
8E1819371T
In Stock
$62.49

This product was last offered at the strikethrough price on
08-11-2026

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3438884 - 06F133062Q - Throttle Body - Includes the throttle sensor - Vemo - Audi Volkswagen

Includes the throttle sensor

Brand:
Vemo - Corporate Logo
ES#:
3438884
Mfg#:
06F133062Q
In Stock
Limited Qty Sale
$323.99

This product was last offered at the strikethrough price on
06-10-2026

$160.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2506920 - 06A105209 - Crankshaft Sprocket - Located on the crankshaft to drive the oil pump - Genuine Volkswagen Audi - Audi Volkswagen

Located on the crankshaft to drive the oil pump Fits automatic transmission models only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2506920
Mfg#:
06A105209
Ships in 1 day
8% off MSRP

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

$86.99

This product was last offered at the strikethrough price on
11-09-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4742768 - P4-VW18T815-N4 - Supertech Piston - .5mm Oversize - Set Of 4 - Supertech .5mm oversized piston set including 20mm wrist pins. - Supertech - Audi Volkswagen

Supertech .5mm oversized piston set including 20mm wrist pins.

Brand:
Supertech - Corporate Logo
ES#:
4742768
Mfg#:
P4-VW18T815-N4
Ships on Dec 7, 2026
$638.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4701353 - 026906283J - Solenoid Valve (N249) - Priced Each - Controls actuation of the Combi Valve or Diverter Valve - Hamburg Tech - Audi Volkswagen

Controls actuation of the Combi Valve or Diverter Valve We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4701353
Mfg#:
026906283J
In Stock
$52.99 USD
Free Shipping
on orders $49 and up
ES#5425965 - 8E0959455KT - Electric Cooling Fan Kit - Keep your cooling system operating properly - Hamburg Tech - Audi

Keep your cooling system operating properly

Brand:
Hamburg Tech - Corporate Logo
ES#:
5425965
Mfg#:
8E0959455KT
Ships in 1 Business Day
$422.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4845378 - JHM-8E0201511J-M - JHM Fuel Filter - High Volume for B6 A4 1.8t (all) and late (04-05) 3.0l V6, B6 S4 and EARLY B7 S4 w 4-lines - JH Motorsports  - Audi

High Volume for B6 A4 1.8t (all) and late (04-05) 3.0l V6, B6 S4 and EARLY B7 S4 w 4-lines

Brand:
JH Motorsports  - Corporate Logo
ES#:
4845378
Mfg#:
JHM-8E0201511J-M
Ships in 1-2 days
$105.00 USD
Free Shipping
on orders $49 and up
ES#3171174 - 058109088K - Camshaft Chain Tensioner OE# 058109088K - Applies tension to the camshaft timing chain - Hamburg Tech - Audi Volkswagen

Applies tension to the camshaft timing chain We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3171174
Mfg#:
058109088K
In Stock
$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#248400 - N138492alu5PACK - Aluminum Drain Plug Washer - Pack Of 5 - Replace with every oil service to prevent leaks. M14x20x1.5 - Elring - Audi Volkswagen

Replace with every oil service to prevent leaks. M14x20x1.5 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
248400
Mfg#:
N138492ALU5PACK
In Stock
$14.99

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

$11.99 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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