Intake Port Block Off Plates
Another Quadstar Original, new for 2019. These block-off plates are designed for engine or cylinder head storage where you want to keep everything sealed and clean. Constructed from heavy duty...
Regular price $3499 $34.99
Engine Lift Plate
Another Quadstar exclusive! We originally made these to use on our own and can now share them with you! Constructed of powder-coated heavy-gauge steel, these are built to use frequently. Simple...
Regular price $6499 $64.99
OBDI Multi-Position Tuner for 1994-1995
A Quadstar Tuning exclusive! Customized to fit the 1994 and 1995 6.5L diesels with a removable chip in the PCM. This is a plug & play unit that holds up to...
Regular price $60000 $600.00
OBDII Single Tune for 1996+
For all 1996 and newer 6.5L Turbo diesel vehicles including trucks, vans, cab-chassis, boats, and anything else with a DS4 pump! This PCM is a sealed unit and requires re-flashing with a...
Regular price $37500 $375.00
OBDI Single Tune for 1994-95
Single replacement PROM chip for 1994 and 1995 6.5L Diesel vehicles. After completing an order, we will provide a comprehensive online form for you to fill out with all vehicle...
Regular price $35000 $350.00
ARP Flexplate Bolts
Genuine ARP flexplate bolt set for all automatic transmission 6.2 and 6.5L diesel engines. Rest assured you have the best when installing these.
Regular price $1999 $19.99
Bosch Marine Fuel Injectors
Your online outlet for premium quality 6.5L turbo marine style injectors. Each injector is hand-built with genuine Bosch nozzles. Pop pressures are guaranteed to be within spec and are calibrated using...
Regular price $58999 $589.99
Remanufactured DS4 Injection Pump with PMD
GM DS 6.5L Fuel Injection Pump These pumps go through a thorough re-manufacturing process and get reassembled to OE specifications. Components are completely cleaned, inspected, and tested. Worn or damaged...
Regular price $74999 $749.99
ProMaxx Replacement Cylinder Head
Complete 6.5L turbo spec replacement aftermarket cylinder heads with diamond pre-cups. Ready to install with true surface, proper valve depth & no core charge. Generally accepted as being better all-around...
Regular price $38000 $380.00
Genuine Mahle set of 8 NEW pistons with pins and rings. Turbo style with hard anodized crowns and factory compression ratio. Mahle was/is the OEM supplier for 6.5L turbo diesel...
Regular price $57500 $575.00