Looking for C6204311100 Cummins B3.3 crankshaft? Premium forged steel shafts for equipment including Bobcat S185 and Komatsu PC75. Prevents journal scoring. Request quote!
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The Cummins B3.3 forged steel crankshaft (OEM: C6204311100) is a high-durability component for compact 3.3L engines.
It prevents journal scoring and fits equipment including Bobcat S185 skid steers, Komatsu PC75/PC78 mini excavators, and Hyster forklifts.
In stock for immediate global wholesale export.
| Specification | Value |
|---|---|
| Product Type | Crankshaft |
| Material Grade | 42CrMo Forged Steel |
| Forging Type | Fully Forged & Quenched |
| Surface Treatment | Induction Hardened Journals |
| Main Journal Diameter | 75.96 – 76.00mm |
| Rod Journal Diameter | 54.96 – 55.00mm |
| Stroke | 115mm |
| Hardness Range | 52-58 HRC (Journals) |
| Balancing Grade | G6.3 Precision Balance |
| Heat Treatment | Stress Relieved & Tempered |
| OEM Reference | C6204311100 |
| Cross Reference | 4943979, 6204-31-1100 |
| Typical Applications | Bobcat S185, Komatsu PC75, Hyster H80FT, Skyjack Telehandlers |
| Application Category | Compact Construction, Forklifts & Mini Excavators |
| Engine Model | Application Field | Typical Equipment Brands & Models |
|---|---|---|
| Cummins B3.3 / QSB3.3 | Construction Machinery (Compact) | Skid Steer Loaders (Bobcat, Case), Telehandlers, Road Compactors |
| Cummins B3.3 / QSB3.3 | Power Generation / Industrial | Cummins Diesel Generator Sets (e.g., C44D5R), Industrial Pumps, Air Compressors |
| Cummins B3.3 / QSB3.3 | Material Handling | Various 4-ton to 7-ton Forklifts (Doosan, Daewoo/Doosan Infracore) |
| Cummins B3.3 (Komatsu) | Excavators / Light Earthmoving | Komatsu PC60-7, PC70-7, PC78US-6 (Engines cross-referenced with 4D95) |
As a global B2B supplier of Cummins engine components, Ruich Value is your trusted partner for high-quality, reliable aftermarket parts.
Ruich Value provides a comprehensive range of genuine-quality Cummins engine components covering multiple engine models. You can explore all available models using the table below:
Model List:
| Cummins Engine Model | Core Displacement (L) | Serial | Associated Models (for Cross-Reference) | Key Applications |
|---|---|---|---|---|
| B3.3 | 3.3 | B / ISB / QSB Series (Light & Mid-Range) | B3.3 (M16/18) | Skid Steer, Excavator, Forklift, Gen-Set |
| 4BT/3.9 | 3.9 | B / ISB / QSB Series (Light & Mid-Range) | 4BT3.9, 4BTA | Diesel Conversion Swap, Jeep Swap, Ford Van, Step Van |
| ISB4.5 / B4.5 | 4.5 | B / ISB / QSB Series (Light & Mid-Range) | 4ISBE, 4ISDE, ISB 4.5L Euro V | Medium-Duty Truck, Bus, Delivery Vehicle |
| 4H | 4.0 | H Series (Mid-Range) | 4H / 4HJ / 4HT | John Deere Excavators (200D/210D), Caterpillar Skid Steers (226B/232B), Komatsu Forklifts (FG20T-25), |
| 6BT / B5.9 | 5.9 | B / ISB / QSB Series (Light & Mid-Range) | 6BT5.9, 12 Valve (12V), 3965010 | Dodge Ram 1500/2500/3500 (1989-2002), Agricultural Tractor |
| ISB6.7 / QSB6.7 | 6.7 | B / ISB / QSB Series (Light & Mid-Range) | 6ISBE, 6ISDE, ISB 6.7L Euro V | Dodge Ram 2500/3500 (2007.5+), School Bus, Fire Truck |
| 6CT / ISC 8.3 | 8.3 | C / ISC / QSC Series (Mid-Range Heavy-Duty) | 6CTA, C8.3, 6D114 | Freightliner, Fire Apparatus, Motorhome (RV), Dozer |
| ISL8.9 / QSL9 | 8.9 | L / ISL / QSL Series (Heavy-Duty) | ISL, ISB 8.9L | Heavy-Duty Bus, RV Coach, Crane, Volvo/Kenworth Truck |
| M11 / ISM / QSM11 | 10.8 | M / ISM / QSM Series | - | Road Truck, Semi-Truck, Haul Truck, Gen-Set |
| NT855 | 14 | N / NT Series (Classic Mechanical) | N14, NH220 (Earlier), D85 | Peterbilt, Kenworth, Classic Truck, Heavy Equipment |
| K19 / QSK19 | 19 | K / QSK Series (High Horsepower) | KTA19, KT19 | Mining, Marine Propulsion, Drill Rig, Power Generation |
| K38 / QSK38 | 38 | K / QSK Series (High Horsepower) | KTA38, KAT38, GTA38 | Large Mining Excavator, Off-Highway, Gen-Set |
| ISF2.8 / ISF3.8 | 2.8 / 3.8 | F / ISF Series (Light Commercial) | - | Foton, GAZelle, Light Commercial Van |
| A2300 | 2.3 | A Series (Small Utility) | - | Small Gen-Set, Utility Equipment |
| ISL9 / QSL9 (6L/9.3L) | 8.9 / 9.3 | L / ISL / QSL Series | L9, ISL 9.3L Euro V/VI | Dongfeng Trucks (DFL4251), Shantui Bulldozers (SD32D), |
| NH220 | 14 | N / NT Series (Classic Mechanical) | NT855, N14, NH220 | Peterbilt 359, Kenworth W900, Classic Truck, Heavy Equipment, Vintage Tractor |
A1: Symptom: Sudden engine seizing or deep knocking originating from the lower block. Diagnosis: In compact equipment like the Bobcat S185, high thermal loads and restricted oil flow often lead to “spun” rod bearings and deep journal scoring. Solution: Our C6204311100 crankshafts are made from high-purity forged steel with induction-hardened journals, providing superior surface density to resist abrasive wear even in high-heat compact engine bays.
A2: Technical Detail: Main bearing cap bolts must be torqued in stages (Final: 100 Nm) and crankshaft end play must be verified between 0.10mm – 0.35mm. Pro-Tip: Always verify that the oil pump and relief valve are functioning correctly; B3.3 engines are sensitive to oil pressure drops, which can lead to premature failure of even the highest quality forged crankshafts.
A3: Diagnosis: Modern QSB3.3 engines operate at higher boost pressures, creating increased torque that can cause vibration fatigue in standard cast iron shafts. Our Solution: The forging process creates a continuous grain flow throughout the C6204311100 shaft. This ensures maximum structural integrity required for the rapid load changes found in skid steer and forklift applications, preventing shaft fracture under cyclic stress.
For wholesale pricing, technical specifications, or to inquire about our full range of Cummins B3.3 and QSB3.3 engine components, please contact our B2B sales team:
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business