Reliable 3939398 and 3969000 pistons for QSB4.5 diesel engine overhauls. We supply OEM-standard internal parts designed for heavy-duty performance and long-term durability.
| Model NO. | QSB4.5 (Tier 3 / Industrial) | Part Number | 3939398 / 3969000 |
| Product Name | Piston Kit | Type | Combustion Engine Part |
| Condition | Brand New / OEM Standard | Stock Status | In Stock / Fast Dispatch |
| MOQ | 1 Piece | Application | Overhaul / Rebuild |
| Payment | T/T, Western Union | Delivery | DHL, FedEx, UPS, Sea/Air |
| Feature | Our Replacement | Low-Cost Aftermarket |
|---|---|---|
| Material | High-silicon Alloy | General Aluminum |
| Tolerance | < 0.01mm | Variable |
| Ring Insert | Ni-resist Reinforced | None |
| Coating | Tin/Graphite Skirt | Uncoated |
| Balance | Gram-matched Sets | Unmatched |
| Life Span | Full Service Life | Premature Wear |
Identify risks during engine inspection
Recommend exact part numbers (3939398 / 3969000)
Provide inspection advice and parts supply
Q: High blow-by or oil consumption?
A: Usually caused by worn 3939398 piston rings. Replacing the full piston kit restores cylinder compression.
Q: Why Choose This Piston?
A: OEM-standard tri-metal structure, trusted by repair shops & equipment fleets for stability under high thermal loads.
Click the button below to visit our Facebook profile and stay updated with the latest news and updates!
Visit Facebook Profile
English
English