Upgrade your 6.5L GM diesel with this high-quality aftermarket turbocharger from PTTURBO.COM — a direct-fit solution engineered for performance, durability, and ease of installation.
This brand-new RHC6 turbo is compatible with a wide range of GM vehicles, including Hummer H1, GMC K-Trucks, Express and Savana Vans. It’s built from robust cast iron and aluminum materials, and comes with a wastegate actuator pre-installed, plus a full installation gasket kit.
Whether you’re replacing a worn-out turbo or enhancing your diesel’s power and efficiency, this unit provides a reliable, factory-style replacement at an unbeatable value.
Vehicle Compatibility:
- 1996–2000 AM General Hummer H1 (2-door & 4-door models)
- 1996–2002 Chevrolet Express 2500 & 3500 (Cargo, Passenger, LS, Cutaway)
- 1996–2002 GMC Savana 2500 & 3500 (Cargo, Passenger, SLE, SLT, Cutaway)
- 1996–2000 GMC K-Trucks with 6.5L Diesel Engine
Turbo Specifications:
- Model: RHC6 (GM6 Replacement)
- Finish: Silver (Cast Iron & Aluminum Construction)
- Fitment: Direct bolt-on replacement
- Condition: Brand new — not remanufactured
- Warranty: 1-Year Manufacturer Warranty
OEM & Interchange Part Numbers:
- 12530339
- 2T101
- 599TC24521000
- 599TC21002000
- TBC516
Included Items:
- Turbocharger (RHC6 Model)
- Gasket Kit for installation
- Flow report & balancing report
- Installation instructions
Key Benefits:
- OEM-style fit and performance for 6.5L GM diesel platforms
- Pre-installed wastegate actuator for quick setup
- Reports included — precision-balanced and flow-tested
- Durable, high-quality construction for long-term reliability
Important Installation Note:
Engine oil must be added to the turbo prior to first startup to prevent damage. Always verify your turbo’s model, part number, and OEM reference before purchase. Contact us with any questions — we’re here to help.
California buyers: Sales tax applies
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About This Turbocharger — GM 6.5L H1 Hummer, GMC Savana, Chevrolet Express
The GM 6.5L diesel engine was used across a wide range of General Motors commercial and military vehicles through the 1990s and into the early 2000s, including the H1 Hummer, GMC Savana van, Chevrolet Express van, and various GM medium-duty truck applications. The turbocharger for the 6.5L diesel — part number 12530339 and referenced by the GM-6 / GM6 designations — is a critical component for adequate power and driveability on these platform-specific applications. Without a functioning turbo, the 6.5L lacks the airflow needed for acceptable performance under load.
Replacement turbos for the GM 6.5L diesel are increasingly difficult to source as the platform ages. This unit is a correct-fitment replacement for the H1 Hummer and van applications using part number 12530339.
Common 6.5L Turbo Failure Symptoms
- Black smoke under load — turbo not making adequate boost
- Oil in the air intake — compressor seal failure
- Audible noise from the turbo — bearing wear
- Shaft play detectable by hand when the unit is removed
6.5L Diesel Turbo Notes
The GM 6.5L diesel has specific oil supply requirements for its turbocharger. Ensure the oil supply line is clean and unrestricted before installing a replacement — the feed passage in the engine block can accumulate deposits on high-mileage 6.5L engines. PT Turbo in San Bernardino, CA has sourced and rebuilt turbochargers for the 6.5L GM diesel platform since the engine was in production. Contact us with fitment questions.
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