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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Performance Engine & Drivetrain Parts

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400LPH High Flow Fuel Pump (AN Fittings)

ES#3603936 - 50-1005 - 400LPH High Flow Fuel Pump (AN Fittings) - Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately - AEM Electronics - Audi Volkswagen

Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application

Brand:
AEM Electronics - Corporate Logo
ES#:
3603936
Mfg#:
50-1005
In Stock at Vendor
9% off MSRP

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

$224.99

This product was last offered at the strikethrough price on
09-12-2026

$204.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

ES#2724982 - K70205FSSX - Stage 4 Extreme Clutch Kit - Designed for extreme power that needs to be put to the wheels. Conservatively rated at 525+ ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 525+ ft/lbs. Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
2724982
Mfg#:
K70205FSSX
Ships in 1 Business Day
$1011.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Rail Spacer Kit

ES#3159 - ECS#152-2 - Fuel Rail Spacer Kit - Includes the necessary parts to raise your fuel rail for larger injectors - ECS - Audi Volkswagen

Includes the necessary parts to raise your fuel rail for larger injectors 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3159
Mfg#:
ECS#152-2
In Stock
ON SALE! SAVE 25%
$30.99

This product was last offered at the strikethrough price on
06-13-2026

$23.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 2

ES#5486 - ra4s2-steel - RA4 240mm Clutch Conversion Kit - Stage 2 - ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit - ECS - Audi Volkswagen

ECS RA4 Lightweight Flywheel with the Audi RS4 clutch kit 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
5486
Mfg#:
RA4S2-STEEL
Ships in 10 Business Days
ON SALE! SAVE 10%
$1067.99

This product was last offered at the strikethrough price on
06-13-2026

$961.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Lightweight Crank Pulley - Black

ES#3184669 - 002480ECS01 - ECS Lightweight Crank Pulley - Black - Less rotational mass means more power - ECS - Audi Volkswagen

Less rotational mass means more power 10X Entries Into Our F80 M3 Sweepstakes

Engine codes AEB & ATW

Brand:
ECS - Corporate Logo
ES#:
3184669
Mfg#:
002480ECS01
In Stock
ON SALE! SAVE 29%
$166.99

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

$119.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Endurance Clutch Kit

ES#3098860 - 70205sstzdmfKT - Stage 3 Endurance Clutch Kit - Designed for dedicated track cars. Conservatively rated at 425ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for dedicated track cars. Conservatively rated at 425ft/lbs. Works with stock dual mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098860
Mfg#:
70205SSTZDMFKT
Ships in 1 Business Day
$944.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ferrea Valve Spring/Retainer Kit

ES#2794009 - FER18tSRKIT - Ferrea Valve Spring/Retainer Kit - Complete set of Ferrea high performance valve springs, and titanium retainers - Integrated Engineering - Audi Volkswagen

Complete set of Ferrea high performance valve springs, and titanium retainers Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794009
Mfg#:
FER18TSRKIT
Back Ordered
$939.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B5 A4 / S4 Quattro Adjustable Damping Coilovers & Performance Rear Differential Mount

ES#4751048 - 000703LA01EBKT - B5 A4 / S4 Quattro Adjustable Damping Coilovers & Performance Rear Differential Mount - Features 32 way adjustable damping, variable length and zinc-coated shock bodies - Enthusiast Bundles - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751048
Mfg#:
000703LA01EBKT
In Stock
ON SALE! SAVE 29%
$1288.99

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

$917.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#2794316 - JE18T242909 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
2794316
Mfg#:
JE18T242909
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#3509366 - JE18T242926 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
3509366
Mfg#:
JE18T242926
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#4849836 - 353830 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
4849836
Mfg#:
353830
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Daily Clutch Kit

ES#3477643 - 70205ssosmfKT - Stage 3 Daily Clutch Kit - Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 395ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 395ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3477643
Mfg#:
70205SSOSMFKT
Ships in 1 Business Day
$891.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit - Stage 3

ES#1027 - B5S4CMCK - Clutch Kit - Stage 3 - More holding power & a Kevlar lined disc - Assembled By ECS - Audi

More holding power & a Kevlar lined disc 10X Entries Into Our F80 M3 Sweepstakes
Replacement clutch kit for the RA4 Stage 3 conversion

Brand:
Assembled By ECS - Corporate Logo
ES#:
1027
Mfg#:
B5S4CMCK
Ships in 7 Business Days
$876.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sachs Performance Clutch Kit

ES#3463392 - 999715999961KT - Sachs Performance Clutch Kit - Includes high-clamp pressure plate and full-face organic clutch disc - Handles up to 400 lb-ft of torque - SACHS Performance - Audi

Includes high-clamp pressure plate and full-face organic clutch disc - Handles up to 400 lb-ft of torque To be used in conjuction with factory flywheel and release bearing

Brand:
SACHS Performance - Corporate Logo
ES#:
3463392
Mfg#:
999715999961KT
Ships in 5 Business Days
$862.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Axle Delete Plug Set - Audi B5 A4 - M14 Thread

ES#4491559 - 012417LA02 - Front Axle Delete Plug Set - Audi B5 A4 - M14 Thread - Easily allows the removal of front axles when converting your B5 A4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of front axles when converting your B5 A4 to RWD (rear wheel drive) from Quattro 10X Entries Into Our F80 M3 Sweepstakes
Up To VIN 8D-1-050001, split is in the 2001 model year

Brand:
ECS - Corporate Logo
ES#:
4491559
Mfg#:
012417LA02
In Stock
ON SALE! SAVE 25%
$133.99

This product was last offered at the strikethrough price on
06-13-2026

$100.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Mount Intercooler Kit

ES#2770209 - ctsb5fmickit - Front Mount Intercooler Kit - Decrease heatsoak with this front mount intercooler - CTS - Audi

Decrease heatsoak with this front mount intercooler

Brand:
CTS - Corporate Logo
ES#:
2770209
Mfg#:
CTSB5FMICKIT
Back Ordered
$799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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Manufacturer names and/or part numbers are used only for identification purposes.

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