Product Overview:
The 3633840 is Cummins 2nd-gen mid-range standard valve spring, fitted 2000–2012, superseding 205208/3629007/3630628. Balanced design for general heavy loads, best for stationary gensets and regular construction machinery across full KTA series.
3633840 valve spring Specification:
Parameter
Specification
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
Application:
✅Stationary Generator Sets (Best Match):
Land-based diesel generators for standby use with continuous load ≤75%, stable speed of 1200–1500rpm, applicable to municipal standby power, factory backup power and small & medium power stations.
✅General Construction Machinery:
Loaders, motor graders, medium excavators, road tractors,Inland cargo ships, inland tugboats
Why Choose US?
✅100% genuine Cummins CCEC parts
✅Professional technical support for fitment verification・
✅Competitive wholesale pricing
✅Fast global shipping
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