Valve spring 3633840 fits Cummins K19, KTA19, QSK19, K38, KTA38, QSK38, K50, KTA50 and QSK50 engines. It is wound from chrome silicon alloy spring steel at 18 mm wire diameter, 58 mm outside diameter and 145 mm free length, rated for continuous operation to 320°C. Fatigue testing shows no permanent deformation or fracture after one million cycles.
Specifications
| Part No. |
3633840 |
| Type |
Valve Spring |
| Fit Engines |
Cummins K19/KTA19/QSK19/K38/KTA38/QSK38/K50/KTA50/QSK50 series engines |
| Material |
Chrome Silicon Alloy Spring Steel |
| Wire Diameter |
18 mm |
| Outer Diameter |
58 mm |
| Free Length |
145 mm |
| Max Continuous Operating Temp |
≤320℃ |
| Fatigue Performance |
No permanent deformation or fracture after 1,000,000 cycle fatigue test |
Key Features
- Chrome silicon alloy spring steel (55SiCrA)
- 18 mm wire diameter, 58 mm outer diameter
- 145 mm free length
- Rated for continuous operation to 320°C
- No permanent deformation or fracture after one million fatigue cycles
Typical Applications
- Mining haul trucks
- Generator sets
- Marine main engines
- Oilfield equipment
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
