A-3900276-AI Spring; Valve
A-3900276-AI Spring; Valve
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One New Aftermarket Replacement Valve Spring for Cummins B Series Diesel Engines
This aftermarket replacement intake and exhaust valve spring fits Cummins B Series diesel engines, including the 4B 3.9L and 6B 5.9L engine families. Valve springs maintain proper valve-to-seat contact, ensuring correct intake and exhaust timing, combustion efficiency, and long engine life in agricultural, construction, marine, and trucking applications.
Specifications
- Outer Diameter: 1.32 in.
- Inner Diameter: 0.94 in.
- Wire Diameter: 0.192 in.
- Free Length: 2.23 in. (approx.)
- Coils: 6.5 total (6 active)
- Ends: Ground square and flat
- Helix Direction: Right hand
- Application: 2-valve cylinder head
Compatible Models
Cummins B Series Engines: 4B 3.9, 4BT 3.9, 4BTA 3.9, 6B 5.9, 6BT 5.9, 6BTA 5.9, ISB Series
These engines are used across a wide range of equipment including Dodge Ram 2500 and 3500 pickup trucks (1989-1998), Freightliner FL50, FL60, FL70, FL80, FS65, MT35, and numerous agricultural, industrial, and marine applications.
Replaces Part Number(s):
3900276, A-3900276, A-3900276-AI
Aftermarket Interchange Numbers
3916691, 3926700, C3900276
New aftermarket replacement part - not remanufactured, not used.
