4932348 | Genuine Cummins® Exhaust Manifold KitDescription: Exhaust Manifold Kit Condition: New Brand: Cummins Part Number: 3937477 Weight: 42 lbs Fit for: Cummins Specifications: Dimensions: 21. 5 x 12. 13 x 9. 38 in Function: Collects exhaust gases: Each inlet of the manifold collects the hot exhaust gases exiting the engine cylinders. The gases are a byproduct of the combustion process and need to be efficiently directed away from the engine for further processing. Channels exhaust flow: The