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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Turbocharger Parts

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WG38 Gen V Ultra-Gate 38 - 14PSI - Black

ES#3970382 - TS-0551-1012 - WG38 Gen V Ultra-Gate 38 - 14PSI - Black - Bolt on external wastegate from Turbosmart - TurboSmart - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Bolt on external wastegate from Turbosmart

Brand:
TurboSmart - Corporate Logo
ES#:
3970382
Mfg#:
TS-0551-1012
Ships on Oct 26, 2026
10% off MSRP

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

$430.99

This product was last offered at the strikethrough price on
10-08-2026

$387.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Securing Bolt - Longitudinal 1.8T K03/K04 - Priced Each

ES#4880739 - 034-145-B001 - Turbo Securing Bolt - Longitudinal 1.8T K03/K04 - Priced Each - These OEM bolts will ensure your K03/K04 turbo stays properly mounted to the exhaust manifold as Volkswagen and Audi intended. Three (3) Required Per Vehicle. - 034Motorsport - Audi

These OEM bolts will ensure your K03/K04 turbo stays properly mounted to the exhaust manifold as Volkswagen and Audi intended. Three (3) Required Per Vehicle. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4880739
Mfg#:
034-145-B001
In Stock
$15.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Boost Control Valve (N75)

ES#4858458 - 034-145-D006 - Boost Control Valve (N75) - An excellent stock replacement. - 034Motorsport - Audi Volkswagen

An excellent stock replacement. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858458
Mfg#:
034-145-D006
Back Ordered
$180.00 USD
Free Shipping
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

Sealing Washer - Priced Each

ES#2561282 - N0138514 - Sealing Washer - Priced Each - Used with the banjo bolt to create a leak free seal. 12x18 - Rein - Audi Volkswagen

Used with the banjo bolt to create a leak free seal. 12x18 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Seals the coolant return line/adapter to the turbocharger

Brand:
Rein - Corporate Logo
ES#:
2561282
Mfg#:
N0138514
In Stock
$1.40 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve

ES#279558 - 06A145710P - Diverter Valve - Cure the boost leak and restore power - Genuine Volkswagen Audi - Audi Volkswagen

Cure the boost leak and restore power From VIN 8D-X-200001, split is in the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279558
Mfg#:
06A145710P
Ships in 4 Business Days
7% off MSRP

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

$183.99

This product was last offered at the strikethrough price on
09-30-2026

$170.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

710N Diverter Valve - Priced Each

ES#2597708 - 06A145710N - 710N Diverter Valve - Priced Each - A great upgrade for stock to mildly tuned engines - Vaico Q+ - Audi Volkswagen

A great upgrade for stock to mildly tuned engines

Brand:
Vaico Q+ - Corporate Logo
ES#:
2597708
Mfg#:
06A145710N
Ships in 1 Business Day
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Gen-V Race Port BOV - Blue

ES#4007245 - TS-0204-1131 - Turbosmart Gen-V Race Port BOV - Blue - The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines - TurboSmart - Audi Volkswagen

The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines *General use blow off valve for custom big turbo applications - Not a direct fit valve*

Brand:
TurboSmart - Corporate Logo
ES#:
4007245
Mfg#:
TS-0204-1131
In Stock at Vendor
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tial MVS External Wastegate - V-banded 38mm - Black

ES#4033239 - TIL-WGT-022BK-AL - Tial MVS External Wastegate - V-banded 38mm - Black - Tial's new MV-S (V38) 38mm v-band external wastegate is the ultimate compact external wastegate solution - Tial - Audi Volkswagen

Tial's new MV-S (V38) 38mm v-band external wastegate is the ultimate compact external wastegate solution *General use wastegate for custom, externally gated big turbo applications - Not a direct fit wastegate*

Brand:
Tial - Corporate Logo
ES#:
4033239
Mfg#:
TIL-WGT-022BK-AL
Back Ordered
$325.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Return

ES#2909 - 058121471B - Turbo Coolant Hose - Return - Connects the turbocharger to the hard water pipe - Continental - Audi Volkswagen

Connects the turbocharger to the hard water pipe We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2909
Mfg#:
058121471B
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Mounting Bolt - Priced Each

ES#3236275 - 058145540 - Turbo Mounting Bolt - Priced Each - M10x50 - Secures the turbocharger to the manifold - Victor Reinz - Audi Volkswagen

M10x50 - Secures the turbocharger to the manifold

Brand:
Victor Reinz - Corporate Logo
ES#:
3236275
Mfg#:
058145540
Ships in 1-2 days
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Splitter Valve - Polished

ES#1832064 - FMDVSPLTRC - Splitter Valve - Polished - Recirculation & blow off valve all in one for customers that want both styles - Forge - Audi Volkswagen

Recirculation & blow off valve all in one for customers that want both styles

Brand:
Forge - Corporate Logo
ES#:
1832064
Mfg#:
FMDVSPLTRC
Back Ordered
$287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Manifold Gasket

ES#251238 - 058253039L - Exhaust Manifold Gasket - Seals the exhaust manifold to the cylinder head - Victor Reinz - Audi Volkswagen

Seals the exhaust manifold to the cylinder head

Brand:
Victor Reinz - Corporate Logo
ES#:
251238
Mfg#:
058253039L
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

K03 Adjustable Wastegate Actuator

ES#1832381 - FMACVAG02 - K03 Adjustable Wastegate Actuator - Increase boost in your engine with this new actuator - Forge - Audi Volkswagen

Increase boost in your engine with this new actuator

Brand:
Forge - Corporate Logo
ES#:
1832381
Mfg#:
FMACVAG02
Ships on Oct 29, 2026
$277.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wastegate Actuator Spring Tuning Kit

ES#1832543 - FMPACTUN - Wastegate Actuator Spring Tuning Kit - Fine tune your wastegate to the exact needs of your engine - Forge - Audi Volkswagen

Fine tune your wastegate to the exact needs of your engine

Brand:
Forge - Corporate Logo
ES#:
1832543
Mfg#:
FMPACTUN
Back Ordered
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose

ES#2878443 - 058133356L - Turbo Inlet Hose - Connects the MAF housing to the turbo - Vaico - Audi Volkswagen

Connects the MAF housing to the turbo We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2878443
Mfg#:
058133356L
Ships in 1 Business Day
$122.99

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

$119.99 USD
Free Shipping
on orders $49 and up

More About Engine Turbocharger Parts

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