We supply high-precision 3928673 Pistons and 3904166 Cylinder Liners specifically for Cummins 6BT5.9 engine rebuilds. Our 3802421 Piston Ring sets ensure maximum compression and durability for heavy-duty industrial operations.
| Model NO. | Product Name | Part Number | Application Type |
|---|---|---|---|
| 6BT5.9 / 6BT | Engine Piston | 3928673 / 3930187 / 3948465 | Rebuild / Overhaul |
| 6BT5.9 / 6BT | Engine Piston | 3946153 / 3911400 / 4897512 | Maintenance / Repair |
| 6BT5.9 / 6BT | Cylinder Liner | 3904166 | Cylinder Sleeve |
| 6BT5.9 / 6BT | Piston Ring Set | 3802421 | Oil Sealing |
| Critical Feature | Our OEM Standard Kit | Low-Cost Market Generic |
|---|---|---|
| Material | High-Silicon Eutectic Alloy | Standard Recycled Alloy |
| Piston 3928673 | CNC Precision Machined | Rough Lathe Casting |
| Liner 3904166 | Wear-Resistant Hardening | No Surface Treatment |
| Ring 3802421 | Tri-Metal Sealing Layer | Single Iron Layer |
| Service Life | 10,000+ Running Hours | Unstable / High Risk |
| Fitment | 100% Guaranteed 6BT5.9 | Frequent Clearance Issues |
| Condition | Brand New, OEM Standard Replacement |
| Payment | T/T, Western Union, MoneyGram |
| Shipping | DHL, Fedex, EMS, UPS, Air/Sea |
| Lead Time | In Stock / Dispatch in 24 Hours |
| MOQ / Pack | 1 Piece / Industrial Export Packing |
Not sure how this issue affects your equipment? Our team helps operators:
Identify potential risks during engine maintenance.
Recommend suitable replacement parts based on ESN.
Support inspection advice and global parts supply.
Q: Why is my 6BT5.9 burning oil?
Worn 3802421 rings or 3904166 liner glazing causes oil blow-by. Replacement restores power.
Q: Why Choose This Liner Kit?
OEM-standard tri-metal structure. Trusted by repair shops & equipment fleets worldwide.
Click the button below to visit our Facebook profile and stay updated with the latest news and updates!
Visit Facebook Profile
English
English