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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Parts & Accessories

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K03 Turbocharger With ECS Installation Kit

ES#2724054 - 058145703LKT - K03 Turbocharger With ECS Installation Kit - Restore boost and get going! - Vaico - Audi Volkswagen

Restore boost and get going! We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2724054
Mfg#:
058145703LKT
Back Ordered
$550.99

This product was last offered at the strikethrough price on
08-25-2026

$505.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - black

ES#2873369 - 06A919081J - Oil Pressure Switch - black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - Febi - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR We Price Match - Give Us A Call or Chat!
From the 2000 model year

Brand:
Febi - Corporate Logo
ES#:
2873369
Mfg#:
06A919081J
Ships in 1 Business Day
$11.99

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

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Condenser Fan

ES#514106 - 4B3959457 - A/C Condenser Fan - 200W - 280MM fan located in front of the AC condenser - ACM - Audi

200W - 280MM fan located in front of the AC condenser

Brand:
ACM - Corporate Logo
ES#:
514106
Mfg#:
4B3959457
Ships in 2 Business Days
$266.60

This product was last offered at the strikethrough price on
10-31-2026

$252.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbocharger Gasket

ES#279605 - 06A253039E - Turbocharger Gasket - Seals the turbocharger to the exhaust manifold - Genuine Volkswagen Audi - Audi Volkswagen

Seals the turbocharger to the exhaust manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279605
Mfg#:
06A253039E
In Stock
11% off MSRP

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

$28.18

This product was last offered at the strikethrough price on
11-03-2026

$25.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Flashed @ ECS

ES#4464243 - 1.8T-B5-B6 - Unitronic Performance Software - Flashed @ ECS - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4464243
Mfg#:
1.8T-B5-B6
In Stock
Starting at $500.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Reinforced Silicone Breather Hose Kit

ES#2864537 - 034-101-3000 - Reinforced Silicone Breather Hose Kit - Upgrade from weaker rubber hoses - 034Motorsport - Audi Volkswagen

Upgrade from weaker rubber hoses 2X Entries Into Our F80 M3 Sweepstakes
Engine code AEB with Manual Transmission only

Brand:
034Motorsport - Corporate Logo
ES#:
2864537
Mfg#:
034-101-3000
Ships in 2 Business Days
$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#1580 - 037906461C - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Bosch - Audi Volkswagen

Restore fuel economy and performance We Price Match - Give Us A Call or Chat!
From VIN 8D-W-080001, split is in the 1998 model year

Brand:
Bosch - Corporate Logo
ES#:
1580
Mfg#:
037906461C
Back Ordered
$509.99

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

$495.99 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 We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3149801
Mfg#:
078105251Q
Ships in 1 Business Day
$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

Suction Pump

ES#2803814 - 058133753D - Suction Pump - Restore engine performance - Rein - Audi Volkswagen

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

Brand:
Rein - Corporate Logo
ES#:
2803814
Mfg#:
058133753D
In Stock
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High-temperature Silicone N75 Valve Hose - Priced Each

ES#3187742 - 034-145-A053 - High-temperature Silicone N75 Valve Hose - Priced Each - Connects the N75 valve to the turbocharger (Two required). Featuring durable silicone construction! - 034Motorsport - Audi Volkswagen

Connects the N75 valve to the turbocharger (Two required). Featuring durable silicone construction! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3187742
Mfg#:
034-145-A053
Back Ordered
$26.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2535175 - 8D0121403L - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - URO - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Fits vehicles from VIN# 8D-W-007 800, Split is in model year 1998

Brand:
URO - Corporate Logo
ES#:
2535175
Mfg#:
8D0121403L
Ships in 1 Business Day
$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Chain Tensioner

ES#2777403 - 058109088K - Camshaft Chain Tensioner - Applies tension to the camshaft timing chain - Vaico - Audi Volkswagen

Applies tension to the camshaft timing chain We Price Match - Give Us A Call or Chat!
For vehicles with AWM engine code only

Brand:
Vaico - Corporate Logo
ES#:
2777403
Mfg#:
058109088K
Ships in 1 Business Day
$632.00

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

$491.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expanding Nut - Priced Each

ES#422162 - 811807577C - Expanding Nut - Priced Each - Install new hardware with your new parts. - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. Used in securing the coolant expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
422162
Mfg#:
811807577C
In Stock
$2.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Intake Filter

ES#588 - 332125 - Air Intake Filter - Drop-in performance filter - K&N - Audi Volkswagen

Drop-in performance filter

Brand:
K&N - Corporate Logo
ES#:
588
Mfg#:
332125
Ships in 3 Business Days
$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set

ES#4715886 - 058198025A - Valve Cover Gasket Set - Stop oil leaks and prevent internal engine damage - Mahle - Audi Volkswagen

Stop oil leaks and prevent internal engine damage

Brand:
Mahle - Corporate Logo
ES#:
4715886
Mfg#:
058198025A
Ships in 1 Business Day
$51.99

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

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#587 - C26168 - Air Filter - Keep clean air running through your engine - Mann - Audi Volkswagen

Keep clean air running through your engine

Brand:
Mann - Corporate Logo
ES#:
587
Mfg#:
C26168
Ships in 1 Business Day
$19.99 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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