2011-2016 GM 6.6L Duramax Charge Air Pipe Coupler (D) - Cold Side 2009-gmc-sierra-2500hd-6-6l-v8-turbo-diesel--duramax--esi5604074 The key is the larger

The key is the larger inner diameter of the PPE fitting

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GM Equivalent P/N: 97371618

7L Race Fuel Valve from Diesel World Magazine

2011-2016 GM 6.6L Duramax Charge Air Pipe Coupler (D) - Cold Side 2009-gmc-sierra-2500hd-6-6l-v8-turbo-diesel--duramax--esi5604074 The key is the largerEach PPE Performance Silicone Hose is strengthened with 5 plies of Nomex reinforced fibers making them very tough. Fluorocarbon lining offers better lubricity (slippery and resistant to chemicals) and the silicone rubber construction ensures they can withstand constant boost pressures and temperatures from 76 degrees all the way to +437 degrees Fahrenheit. PPE silicone will maintain structural integrity even when subject to high boost pressures