
3937630-6L Exhaust Manifold
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Product Descreiption
1. Specifications
- Part Number: 3937630-6L (also referenced as 3937630)1688阿…
- Engine Compatibility: Cummins 6L / ISL / 6CT 8.3L diesel enginesHubei Shen…
- Material: High‑temperature resistant alloy cast iron / ductile iron (Ni‑resist cast iron)Made-in-Ch…
- Structure: 6‑cylinder, 4‑port design; integrated one‑piece casting1688阿…
- Flange: Precision‑machined cylinder head and turbo mounting flangesMade-in-Ch…
- Temperature Rating: Up to 750°C (1382°F) continuous dutyDongfeng M…
- Pressure Rating: Factory pressure‑tested for leak‑free operationMade-in-Ch…
2. Installation Location
- Mounting Position: Directly bolted to the rear side of the engine cylinder head (right bank)汽车之家
- Connections:
- Inlet: Sealed to exhaust ports of cylinders 1–6 via gaskets汽车之家
- Outlet: Flanged to turbocharger inlet (twin‑port or single‑port turbo)Heavy Duty…
- Adjacent Components: Engine block, turbocharger, exhaust gas recirculation (EGR) system, and exhaust downpipe汽车之家
- Orientation: Installed horizontally along the engine’s longitudinal axis, in the engine compartment汽车之家
3. Function
- Exhaust Gas Collection: Gathers high‑temperature exhaust gases from all six cylinders and routes them into a single manifold runner汽车之家
- Pulse Energy Utilization: Optimized runner design minimizes exhaust interference between cylinders, preserving pulse energy to improve turbocharger response and reduce turbo lagHubei Shen…
- Backpressure Reduction: Smooth internal geometry lowers exhaust backpressure, enhancing engine scavenging efficiency and power outputHebei Yuan…
- Thermal Durability: Withstands extreme thermal cycling and vibration; prevents exhaust leaks, cracks, or warping under heavy‑duty conditionsDongfeng M…
- Emission Compliance: Directs exhaust gases toward the aftertreatment system (catalytic converter/DPF) to meet emissions standards汽车之家




