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Audi B5 A4 FWD 1.8T

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Audi B5 A4 FWD 1.8T Engine Parts & Accessories

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Cylinder Head Bolt Set - With Tool

ES#263802 - 204-3902 - Cylinder Head Bolt Set - With Tool - High strength head bolts with a triple square head - ARP - Audi Volkswagen

High strength head bolts with a triple square head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ARP - Corporate Logo
ES#:
263802
Mfg#:
204-3902
Ships on Jul 6, 2026
$226.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor Cover Kit

ES#2568268 - 03G103707KT1 - Oil Level Sensor Cover Kit - Includes sensor hole cover, gasket, and retaining hardware - Assembled By ECS - Audi Volkswagen

Includes sensor hole cover, gasket, and retaining hardware 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#:
2568268
Mfg#:
03G103707KT1
Ships in 1 day
ON SALE! SAVE 15%
$50.99

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

$43.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Boost Tee Manual Boost Controller - Black

ES#4430283 - TS-0101-1102 - Turbosmart Boost Tee Manual Boost Controller - Black - In-car boost controller for fine tuning - TurboSmart - Audi Volkswagen MINI Porsche

In-car boost controller for fine tuning affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
4430283
Mfg#:
TS-0101-1102
In Stock at Vendor
10% off MSRP

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

$124.99

This product was last offered at the strikethrough price on
06-17-2026

$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each

ES#2834954 - N90813202 - Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each - Includes crush washer. M14x1.5 - Febi - Audi

Includes crush washer. M14x1.5 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:
Febi - Corporate Logo
ES#:
2834954
Mfg#:
N90813202
In Stock at Vendor
$4.99

This product was last offered at the strikethrough price on
01-03-2026

$3.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Box Clip - Priced Each

ES#10916 - 078129797 - Air Box Clip - Priced Each - Keep the air filter opening secured and air tight - Genuine Volkswagen Audi - Audi Volkswagen

Keep the air filter opening secured and air tight affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AEB

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
10916
Mfg#:
078129797
In Stock
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Split Valve Keeper - Priced Each

ES#1600384 - 0000531126 - Split Valve Keeper - Priced Each - Engine Valve Spring Retainer Keeper - Split cotter for intake or exhaust valve. Two required per valve - Genuine Mercedes Benz - Audi Volkswagen

Engine Valve Spring Retainer Keeper - Split cotter for intake or exhaust valve. Two required per valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1600384
Mfg#:
0000531126
Ships in 3 Business Days
$3.09

This product was last offered at the strikethrough price on
02-09-2026

$2.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#307207 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose to the flange. 32mm - Genuine Volkswagen Audi - Audi Volkswagen

Secures the radiator hose to the flange. 32mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307207
Mfg#:
1J0121142
Ships in 1-3 days
21% off MSRP

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

$6.47

This product was last offered at the strikethrough price on
06-17-2026

$5.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose - 3"

ES#2864573 - 034-145-A043 - Turbo Inlet Hose - 3" - To be used in conjunction with 2.75" ID MAF housing and stock-location big turbo upgrades - 034Motorsport - Audi Volkswagen

To be used in conjunction with 2.75" ID MAF housing and stock-location big turbo upgrades affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
To be used in conjuction with 2.75" ID TT225 MAF housing & stock-location big turbo upgrades

Brand:
034Motorsport - Corporate Logo
ES#:
2864573
Mfg#:
034-145-A043
Back Ordered
$223.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

57i Performance Air Intake System

ES#3163989 - 57-0515 - 57i Performance Air Intake System - Easy to install with washable, lifetime filter - K&N - Audi

Easy to install with washable, lifetime filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
3163989
Mfg#:
57-0515
Ships in 4 Business Days
ON SALE! SAVE 19%
$272.99

This product was last offered at the strikethrough price on
05-15-2026

$222.05 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Smooth Expansion Tank & Washer Fluid Reservoir Cap Set - Black

ES#3509361 - 009635ECS05KT - Smooth Expansion Tank & Washer Fluid Reservoir Cap Set - Black - Dress up your engine bay with black expansion tank and washer reservoir caps to replace the old blue ones - Assembled By ECS - Audi Volkswagen

Dress up your engine bay with black expansion tank and washer reservoir caps to replace the old blue ones 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#:
3509361
Mfg#:
009635ECS05KT
In Stock
ON SALE!
$60.99

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

$55.32 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cylinder Head Coolant Flange

ES#2712765 - 058121132C - Cylinder Head Coolant Flange - Located on the back of the cylinder head - Vaico - Audi Volkswagen

Located on the back of the cylinder head 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#:
2712765
Mfg#:
058121132C
In Stock at Vendor
$18.99

This product was last offered at the strikethrough price on
04-06-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) - (19mm)

ES#4818408 - 035103245A - Pressure Control Valve (PCV) - (19mm) - Located under the intake manifold - Bremmen Parts - Audi Volkswagen

Located under the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818408
Mfg#:
035103245A
In Stock
ON SALE! SAVE 26%
$10.99

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

$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Installation Kit

ES#2769992 - 058129717dKT - Intake Manifold Installation Kit - Everything you need to remove and re-install your intake manifold - Genuine Volkswagen Audi - Audi

Everything you need to remove and re-install your intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2769992
Mfg#:
058129717DKT
Ships on Sep 29, 2026
Auto Notify
$223.99

This product was last offered at the strikethrough price on
02-24-2026

$219.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump Filter

ES#432746 - 8D0906321 - Leak Detection Pump Filter - Cleans the air entering the leak detection pump - Genuine Volkswagen Audi - Audi Volkswagen

Cleans the air entering the leak detection pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
432746
Mfg#:
8D0906321
Ships in 2 Business 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.

$119.99

This product was last offered at the strikethrough price on
06-17-2026

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

wiring harness bracket

ES#433091 - 8D0971845AG - wiring harness bracket - Used for the compressor/electric fan harness - Genuine Volkswagen Audi - Audi

Used for the compressor/electric fan harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
433091
Mfg#:
8D0971845AG
Ships in 6 Business 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.

$23.99

This product was last offered at the strikethrough price on
06-17-2026

$21.99 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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