Wehrli 20-24 GM Duramax - 19-23 Ram HD Rear Differential Cover - Gloss Black M3 4 Liter 40TE-AE

4 Liter 40TE-AE

Spectre's 4 inch outside diameter - 18 inch long mass air sensor tube is designed for custom air intake systems utilizing 4 inch tubing and require the use of a blade-style mass air flow sensor

The TIG-welded polished end tanks add strength and a refined appearance under the hood

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It is imperative that you check the fuel pump sizing for your vehicle before purchasing an AEM High Flow Fuel Pump

Wehrli 20-24 GM Duramax - 19-23 Ram HD Rear Differential Cover - Gloss Black M3 4 Liter 40TE-AEFabricated Aluminum Differential Cover for Rear Axle on 2020 2025 GM Duramax 2019 2024 Ram Cummins Trucks.