Product Overview:
Genuine DCEC 3929037 forged steel gearless crankshaft, heavy-duty upgraded replacement for cast iron C3907804, exclusively for 12-valve mechanical 6BT 5.9L / SAA6D102 engines.,Upgrade: DI to 42CrMo forged steel, fillet roller burnished, tensile strength up 40%, engineered for high-load severe working conditions.
3929037 Crankshaft Specification:
| Item | Parameter |
|---|---|
| Part Number | 3929037 (DCEC Original) |
| Fit Engine | 6B/6BT/6BTA 5.9L 12V mechanical pump engine |
| Material | Integral 42CrMo forged alloy steel |
| Mechanical Property | Tensile ≥800MPa; Elongation ≥5.5%; Impact toughness ≥25 J/cm² |
| Surface Treatment | Deep nitriding, HRC46–52 journal hardness |
| Bore×Stroke | 102mm × 120mm |
| Main Journal | 82.98–83.00mm, 7 journals total |
| Rod Journal | 69.09–69.11mm, 6 journals total |
| Overall Length | 857mm |
| Net Weight | 49.15kg |
APPlication Scenarios:
✅Engines: 6B/6BT/6BTA 5.9L 12V, Komatsu SAA6D102; incompatible with 24V ISB common rail
✅Construction: Excavators, loaders, dozers, rollers, mining gear
✅ Commercial Vehicles: Medium trucks, semi-tractors, coaches
✅ Power Units: 50–110kW 6BT5.9-G diesel gensets
Why Choose US?
✅Genuine Cummins DCEC equivalent quality, strict factory inspection
✅Full Cummins engine parts inventory, fast dispatch
✅Global door-to-door shipping in 5–7 days
✅Professional technical team for fitment support- Factory direct pricing, flexible MOQ
Name: Aandy
Mobile:
Tel:19924579082
Email:1941346301@qq.com
Add:5F, Block 4, Next Industrial Park, 136 Zhongkang Road, Futian Dist, Shenzhen