The B3.3 Piston (Part Number B3.3 / B33) is a high-precision component engineered for heavy-duty 4-cylinder diesel engines. Our OEM Standard Replacement pistons solve compression loss and high oil consumption during critical Engine rebuild projects.
| Part Number | B3.3 / B33 | Model NO. | B3.3 Series Engine |
| Product Name | Piston / Piston Assembly | Type | Diesel Engine Internals |
| Condition | Brand New, OEM Standard | MOQ | 1 Piece |
| Shipping | DHL, Fedex, UPS, Air/Sea | Payment | T/T, Western Union |
| Requirement | Our B3.3 Replacement | Low-Quality Market Parts |
|---|---|---|
| Material | High-silicon alloy | Standard recycled aluminum |
| Fitment | CNC Precision Machining | Approximate sizing |
| Durability | Reinforced Ring Grooves | Single-layer grooves |
| Operation | Strict Weight Balancing | Uneven mass distribution |
| Startup | Anti-friction Skirt Coating | Plain metal surface |
| Reliability | Direct Drop-in B3.3 Fit | Often requires modification |
This Part Number B3.3 assembly fits the following construction equipment:
| Category | Machine Models |
|---|---|
| Excavators | Komatsu PC60-7, PC70-7, PC75, PC88MR |
| Loaders | Case 430, Case 440, Bobcat S250 (B3.3 Ver.) |
| Forklifts | Hyster, Yale, TCM Diesel Units |
| Industrial | B3.3 Silent Gensets, Road Rollers |
Not sure how this issue affects your equipment? Our team helps operators:
✔ Identify potential risks during maintenance
✔ Recommend suitable replacement parts if needed
✔ Support both inspection advice and parts supply
Immediate Inventory Check:
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Question: Blue smoke after B3.3 overhaul?
Answer: Usually due to low-quality B33 piston rings or improper clearance. Use OEM standard specs to ensure oil control.
Question: Why Choose This Piston Assembly?
Answer: OEM-standard tri-metal structure. Trusted by repair shops & equipment fleets for reliable B3.3 engine maintenance.
We supply assemblies and components for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.
Main Products: Cylinder Liner, Piston, Piston Ring, Main Bearing, Con Rod Bearing, Thrust Washer, Overhaul Gasket Kit, Fuel Injection Pump, Injector, Crankshaft, Turbocharger, Water Pump, Oil Pump, Cylinder Block, Cylinder Head, Connecting Rod. Long-tail Keywords: B3.3 Spare Parts, Diesel Engine Rebuild Kit, Excavator Engine Repair China, Aftermarket Piston Supplier, Marine Engine Components, Generator Parts, High Precision Crankshafts, Durable Cylinder Heads, Industrial Gasket Set.
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