Replace part number : 12688993 12670033 DFI13 A2C9934500 DEF13 Compatible with Chevrolet Silverado 2500 3500 GMC SIERRA 2500 3500 6.6L Direct Fit Application Please check compatibility table, part photos, OE part number and part description above carefully to make sure it is what you need. Our parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in your old machine.
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Aftermarket Replace part number : 12688993 12670033 DFI13 A2C9934500 DEF13

Fitment:
Compatible with Chevrolet Silverado 2500 HD 2017-2021 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
Compatible with Chevrolet Silverado 3500 HD 2017-2021 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
Compatible with GMC Sierra 2500 HD 2017-2021 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
Compatible with GMC Sierra 3500 HD 2017-2019 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged

Please check our photos and make sure the part shown looks identical to your stock one.