Cummins 4BT Engine & Spare Parts
Cummins Engine | Construction | Mining Engine Parts Catalog
The Cummins 4BT 3.9 is a 3.9-litre inline-four turbocharged diesel — the workhorse of light construction equipment, forklifts, compact loaders and light trucks, and a frequent choice for small generator sets. Mining Spares Direct supplies 4BT engine assemblies and the full spare-parts range — piston and liner kits, crankshafts, cylinder heads, turbochargers, injectors and fuel pumps, water and oil pumps, gasket sets and overhaul kits — genuine and OEM-equivalent, matched precisely by part number, exported worldwide.
Technical Specifications
| Displacement | 3.9L L |
| Configuration | Inline 4-cylinder |
| Power Range | 75-100 kW (100-135 hp) |
| Fuel System | Mechanical Direct Injection |
| Dry Weight | Approx. 355 kg (782 lb) kg |
| Peak Torque | Approx. 360 N·m (265 lb-ft) @ 1600 rpm N·m |
| Bore × Stroke | 102 mm × 120 mm (4.02 in × 4.72 in) mm |
| Aspiration | Turbocharged |
View Details
- Displacement: 3.9L Inline 4-cylinder
- Power Range: 75-100 kW @ 2200 rpm
- Fuel System: Mechanical Direct Injection
- Applications: Small loaders, forklifts, rollers
- Cooling: Water-cooled
Part Numbers & Cross-Reference
| OEM Part No. | Description |
|---|---|
| 3286277 | Water pump for Cummins B-series 4B / 4BT 3.9 (also fits 6B / 6BT 5.9) |
| 3908615 | Lube oil filter for Cummins 4BT / 6BT (Fleetguard LF3959) |
| 3931063 | Spin-on fuel filter / water separator for Cummins 4BT / 6BT / 6CT (Fleetguard FF5052) |
| 3802358 | Water pump for Cummins 4B / 4BT / 4BTA / 6B / 6BT (interchange 3802004) |
| FF5052 | Fleetguard spin-on fuel filter for Cummins 4B / 4BT / 6B / 6BT / 6C / 6CT / 6CTA |
Certifications & Standards
Frequently Asked Questions
What applications is the 4BT best suited for?
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