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214 Products

Filter products

In stock 187
Out of stock 36

The highest price is $9,250.00

$ From

$ To

Quadstar Tuning

Lightweight Billet Crankshaft Pulley

In stock

Regular price $245.00 USD
Sale

Clevite Mahle

Mahle 6.5L Piston Ring Kits

In stock

Regular price From $179.97 USD

Regular price ~~$199.97 USD~~ Sale price From $179.97 USD
AM General

OEM 6.5L Oil Pan

In stock

Regular price $159.97 USD
Alliant Power

Oil Pressure Sensor

In stock

Regular price $42.50 USD
STANADYNE

Optic Sensor Oring for DS Injection Pump

In stock

Regular price $9.99 USD
Sale

STANADYNE

Overhaul Gasket Kit for DB Injection Pump

In stock

Regular price $50.00 USD

Regular price ~~$65.00 USD~~ Sale price $50.00 USD
STANADYNE

Overhaul Gasket Kit for DS Injection Pump

Only 3 left

Regular price $94.99 USD
Sale

AM General

P400 6.5L Connecting Rod

In stock

Regular price $130.00 USD

Regular price ~~$180.00 USD~~ Sale price $130.00 USD
Sale

Quadstar Tuning

P400 6.5L Connecting Rod for Stock Pistons

Coming soon

Pre-order Regular price $215.00 USD

Regular price ~~$235.00 USD~~ Sale price $215.00 USD
AM General

P400 6.5L Cylinder Head

In stock

Regular price $1,500.00 USD
Sale

AM General

P400 Rod Bearing

In stock

Regular price $14.50 USD

Regular price ~~$16.99 USD~~ Sale price $14.50 USD
Quadstar Tuning

Piston Ring Compressor

In stock

Regular price $27.97 USD
Quadstar Tuning

Piston Ring Squaring Tool

In stock

Regular price $24.97 USD
Sale

Flight Systems

PMD Calibration Resistors

In stock

Regular price $18.99 USD

Regular price ~~$19.99 USD~~ Sale price $18.99 USD
Energy Suspension

Polyurethane Motor Mount

In stock

Regular price $44.97 USD
Energy Suspension

Polyurethane Transmission Mounts

In stock

Regular price From $39.97 USD
Quadstar Tuning

Premium Glow Plug Harness

In stock

Regular price $139.99 USD
ProMaxx

ProMaxx Replacement Cylinder Head

In stock

Regular price $550.00 USD
Sale

Quadstar Tuning

Pump Timing Wrench

In stock

Regular price $54.99 USD

Regular price ~~$84.99 USD~~ Sale price $54.99 USD
Quadstar Tuning

Quadstar Beanie

In stock

Regular price $19.97 USD
Sale

Quadstar Tuning

Quadstar Flex Fit Hat

In stock

Regular price $29.50 USD

Regular price ~~$34.99 USD~~ Sale price $29.50 USD
Sale

Quadstar Tuning

Quadstar Snapback Hat

In stock

Regular price $29.50 USD

Regular price ~~$34.99 USD~~ Sale price $29.50 USD
Quadstar Tuning

Quadstar Tuning Gift Card

In stock

Regular price From $25.00 USD
Quadstar Tuning

Remanufactured DS4 Injection Pump - With ULSD Upgrade

Out of stock

Regular price $1,475.00 USD

About us

Quadstar Tuning is a small business focused on providing the highest quality parts for the 6.5L Turbo Diesel platform. We specialize in tuning but also offer a wide selection of other products.

Check back frequently as things are always changing!

Thank you for considering us for your build!

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