Cummins 4BT Engine & Spare Parts
Cummins Engine | Construction | Mining Engine Parts Catalog
3.9L 4-cylinder engine for light construction equipment
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
Certifications & Standards
Frequently Asked Questions
What applications is the 4BT best suited for?
Request Quote
Share engine serial number, duty cycle and required quantity for a tailored quotation.
Related Products
Compatible engines and parts from the same series — explore the full range we supply.
Cummins X15 Highway Engine
15L next-gen highway engine with leading fuel efficiency
Cummins ISX Highway Engine
The Cummins ISX (later branded X15) is a 15-litre inline-six diesel (400–600 hp / 298–447 kW) with XPI common-rail fuel injection, a leader in the North American heavy-truck market and also used in heavy-haul and vocational duty. Mining Spares Direct supplies ISX/X15 engine assemblies and the full spare-parts range — pistons, cylinder liners, crankshafts, connecting rods, turbochargers, XPI injectors and fuel pumps, water and oil pumps, bearings, gasket and overhaul kits — genuine or OEM-equivalent, with worldwide export.
Cummins ISLe Highway Engine
The Cummins ISLe is an 8.9-litre inline-six common-rail diesel (240–340 hp / 179–254 kW) built for on-highway trucks, buses and coaches, meeting Euro III–V emission stages. Mining Spares Direct supplies ISLe engine assemblies and the full ISLe spare-parts range — pistons, cylinder liners, crankshafts, connecting rods, turbochargers, common-rail injectors and fuel pumps, water and oil pumps, bearings, gasket and overhaul kits — genuine or OEM-equivalent, with worldwide export.
Cummins KTA38-G Generator Engine
The Cummins KTA38-G is the generator version of the 38-litre V12 K38 diesel, driving prime and standby generator sets rated roughly 800–1200 kVA with the PT/electronic fuel system. Mining Spares Direct supplies KTA38-G engine assemblies and the full spare-parts range — pistons, cylinder liners, crankshafts, connecting rods, turbochargers, injectors and fuel pumps, water and oil pumps, bearings, gasket and overhaul kits — genuine or OEM-equivalent, with worldwide export.
Cummins KTA19-G Generator Engine
19L generator engine, preferred for prime power
Cummins 6BT5.9-G Generator Engine
5.9L generator-specific engine, stable and reliable