Product Overview:
3966454 is Cummins upgraded full cylinder head assembly for 6BT/6BTA 5.9L 12-valve engines, fully interchangeable with all older 6BT head variants.This pre-assembled heavy-duty unit resolves common cracking, sleeve leakage and thermal distortion issues, ideal for truck, machinery and generator overhaul.
3966454 cylinder head Specification:
Parameter
Spec
Part No.
3966454
Fit Engine
Cummins 6BT / 6BTA 5.9L inline 6 diesel
Valve Configuration
12-valve (6 intake + 6 exhaust)
Displacement
5.9L
Bore × Stroke
102mm × 120mm
Power Output
160–230 HP
Cross Ref PN
3913391, 3917287, 3920395, 3966452, 3925400, 3911273, 3904573
Block Material
1.5%–2.0% high-nickel cast iron
Valves
6 heat-resistant intake valves, 6 anti-erosion exhaust valves
Compression Ratio
17.3:1 (turbo intercooled) / 18.5:1 (naturally aspirated)
Full Assembly Gross Weight
110–120 kg (243–265 lbs)
Key Features:
✅Made of high-nickel alloy cast iron (1.5%–2.0% Ni) for enhanced structural strength
✅Redesigned internal cooling passages cut bridge zone temperature by ~30°C to eliminate cracking failure
✅ Valve seats upgraded from regular cast iron to powder metallurgy alloy for superior wear resistance
Why Choose Us?
✅Price Advantages of Authorized Cummins Agents in China
✅Genuine Cummins DCEC 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