Product Overview:
3920868 is an equivalent exhaust valve for Cummins B-series diesels. As a key valvetrain part, it discharges post-combustion exhaust gas. Built to strict OE standards, it matches original performance and durability. It directly replaces multiple old part numbers and fits both naturally aspirated and turbocharged B-series engines.
3920868 Exhaust Valve Specification:
Item
Parameter
Part No.
3920868 (OE exhaust valve)
Fit Engines
Cummins B series: 4BT3.9, 6BT5.9, 6BTA5.9 (12-valve)
Applicable Vehicles
Dongfeng 153, 1989–1998 Dodge Ram 5.9L, 4/6-cylinder construction diesel engines
Usage Quantity
6 pcs per 6-cylinder engine; 4 pcs per 4-cylinder engine
Valve Head Diameter
1.654 in / 41.88 mm
Stem Diameter
0.3138 in / 7.95 mm
Head Surfacing
Stellite cobalt-based alloy, high temp & exhaust corrosion resistance
Stem Treatment
Full gas nitriding for low friction & extended lubrication service life
Key Features:
✅Nickel-chromium-molybdenum heat-resistant alloy
✅Precision machined to OEM tolerances
✅Direct drop-in replacement
✅Withstands up to 850°C operating temperatures
✅Resists corrosion, erosion and burning
Application:
✅Light and medium-duty commercial trucks and vans
✅Pickup trucks (Dodge Ram 2500/3500 with Cummins engine)
✅Stationary and portable diesel generators
✅Agricultural machinery including tractors, combines, and harvesters
✅Construction equipment such as excavators, loaders, and backhoes
Why Choose US?
✅Price Advantages of Authorized Cummins Agents in China
✅Genuine Cummins 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