Factory direct 3522865 Cummins HT3B turbocharger for NTA855 Big Cam engines. High-capacity HT3B design fits Kenworth W900 and Peterbilt 379. Resists thermal stress and oil leakage. Ready for global dispatch. Request quote!
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The Holset HT3B high-capacity turbocharger (OEM: 3522865) is engineered for NTA855 Big Cam 14L engines.
It resolves thermal fatigue issues and fits equipment including Kenworth W900, Peterbilt 379 trucks, and C300 D5 generator sets.
In stock for immediate global wholesale.
The Holset HT3B is a legendary fixed-geometry turbocharger, celebrated for its exceptional durability and straightforward design. It is the definitive OEM and aftermarket choice for overhauling the powerful Cummins NTA855 and other 855-cubic-inch series engines. Built on Cummins’ heritage of reliability, the HT3B provides consistent, powerful performance in the harshest operating conditions, from heavy-haul trucking to marine propulsion. This model often serves as a direct, more robust replacement for older Schwitzer ST50 and Garrett T46B turbos, making it a versatile and trusted component for any NTA855 rebuild.
Our aftermarket HT3B turbo is precision-engineered to deliver the performance and longevity your customers demand. By adhering to strict manufacturing tolerances and using high-quality materials for the turbine and compressor wheels, we ensure our turbos restore original engine power and efficiency. It represents a high-value, low-risk investment for any B2B partner focused on providing dependable engine solutions.
| Specification | Value |
|---|---|
| Product Type | Turbocharger |
| Turbo Type | Holset HT3B (Large Frame Fixed Geometry) |
| Compressor Wheel Material | High-Strength Aluminum Alloy |
| Turbine Wheel Material | K18 High-Nickel Alloy (Inconel 713C) |
| Bearing Type | Heavy-Duty Multi-Pad Thrust Bearing |
| Cooling Method | Oil Cooled & Lubricated |
| Balance Standard | VSR Balanced (Industrial Grade) |
| Max Operating Temp | 760°C (Continuous Duty) |
| Housing Material | Durable Ductile Iron (Turbine Side) |
| OEM Reference | 3522865 |
| Cross Reference | 3803201, 3528821, 3528820, 3522778 |
| Typical Applications | Kenworth W900, Peterbilt 379, Cummins C300 D5 Genset |
| Application Category | Class 8 Heavy Duty Haulage & Industrial Power |
| Engine Model | Application Field | Typical Equipment Brands & Models |
|---|---|---|
| NTA855 | Heavy-Duty Trucking | Various Class 8 Trucks and Tractors |
| NTA855-P | Power Generation | Industrial Generator Sets (Gensets), Prime Power Units |
| NTA855 (Marine) | Marine | Marine Propulsion Engines, Auxiliary Power |
| NT855 / NTC | Construction & Industrial | Loaders, Dozers, Mixers (e.g., Samsung, Chongqing) |
Important: All turbocharger orders require OEM number verification to ensure perfect fitment. The HT3B series has multiple configurations. Please provide your current part number or engine CPL when requesting a quote to guarantee compatibility.
Complete Service Solutions: As your strategic sourcing partner, we also supply comprehensive repair kits for the HT3B turbo, including:
Contact our technical team for component-level solutions.
Ruich Value supplies a dedicated range of Cummins turbochargers, from robust fixed-geometry models like the HT3B and HX40W to advanced VGT units. Our coverage includes turbos for the NTA855, M11, ISX, and 6BT engine series. For a complete cross-reference, please request our full turbocharger catalog.
| Engine Series | Common Turbo Models | Typical Applications |
|---|---|---|
| B Series (4BT, 6BT, ISB, QSB) | H1C, WH1C, HX35W, HY35W, HE221W, HE351CW | Light/Medium-Duty Trucks, Vans, Industrial, Marine, Agriculture |
| C Series (6CT, ISC, ISL, QSL) | H1E, HX40W, HE431VE | Medium/Heavy-Duty Trucks, Buses, Construction, Industrial |
| L, M, N Series (L10, M11, N14, NT855) | HT3B, HT60, HX50, ST50, T46, BHT3B, S300 | Heavy-Duty On-Highway Trucks, Industrial, Marine |
| ISX / QSX Series | HX55, HE600WG/HX60W, HE551V, HE451VE, HE400VG, HX82 | Heavy-Duty On-Highway Trucks (Class 8) |
| K, QSK, QST Series (K19, K38, QSK, QST) | HC5A, HX80, HX82, HE800FG | Mining, Power Generation, Marine, Rail (High-Horsepower) |
| ISF Series (ISF2.8, ISF3.8) | HE211W, HE221W | Light Trucks, Pickups, Vans, Construction Machinery |
A1: Symptom: Blue exhaust smoke and oil pooling in the intake manifold. Diagnosis: In 14L Big Cam engines used for power generation or heavy hauling, the dynamic oil seals often fail due to excessive crankcase pressure or restricted drain lines. Solution: Our HT3B units feature upgraded staggered-gap piston rings and high-temperature seals that provide superior oil retention even during the variable load cycles typical of NTA855 applications.
A2: Technical Detail: It is vital to verify the oil supply pressure is between 35-50 PSI at operating temperature and the turbo is primed with at least 200ml of oil. Pro-Tip: On Big Cam III/IV engines, ensure the exhaust manifold gaskets are perfectly sealed; any pre-turbo exhaust leak will drastically reduce the boost efficiency of the 3522865 unit, causing sluggish performance.
A3: Diagnosis: The NTA855 platform is known for high Exhaust Gas Temperatures (EGT) during heavy pulls, which can cause turbine blade “creep” or melting in inferior materials. Our Solution: We use K18 high-nickel alloy (Inconel 713C) for the turbine wheel, which maintains structural integrity at temperatures up to 800°C. This ensures the HT3B maintains rotor balance and efficiency during long-climb heavy hauls or continuous prime power generation.
For wholesale pricing, technical questions, or to order the Cummins HT3B turbo, please contact our expert team.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business