4099004 is the crankshaft fitted to Cummins QSK38, KTA38 and K38 engines. It is made from 42CrMo alloy structural steel. Published figures include bore × stroke 159mm × 159mm (6.25" × 6.25"), rated power range 800–1300 HP, net weight 250 KG. It cross-references 3648630, 3630076, 3630075, 3630056.
Specifications
| Part Number |
4099004 |
| Cross Reference PN |
3648630, 3630076, 3630075, 3630056, 3634814 |
| Compatible Engines |
Cummins K38, KTA38, QSK38, G38, KTA38GC V12 water-cooled diesel engines |
| Cylinder Layout |
V12, 7 main journals & 12 connecting rod journals |
| Bore × Stroke |
159mm × 159mm (6.25" × 6.25") |
| Displacement |
37.8 L |
| Rated Power Range |
800–1300 HP |
| Net Weight |
250 KG |
| Outer Package Size |
1600×500×500mm, fumigated solid wooden crate |
| Base Material |
One-piece alloy forged steel |
| Heat Treatment |
Overall quenching & tempering + journal high-frequency quenching + fillet rolling reinforcement (latest upgraded process) |
Key Features
- 42CrMo alloy structural steel
- Cross Reference PN: 3648630, 3630076, 3630075, 3630056, 3634814
- Compatible Engines: Cummins K38, KTA38, QSK38, G38, KTA38GC V12 water-cooled diesel engines
- Cylinder Layout: V12, 7 main journals & 12 connecting rod journals
- Bore × Stroke: 159mm × 159mm (6.25" × 6.25")
- Displacement: 37.8 L
Typical Applications
- Diesel generator sets
- Construction machinery
- Marine propulsion engines
- Industrial power units
Ordering from Sino Bus Parts
- Wholesale pricing; bulk orders welcome
- Global shipping
- Fitment confirmed against your engine serial or CPL before dispatch
- Contact us on WhatsApp for a quotation
