Front & Rear Thermostat Kit For 2001-21 6.6l Duramax LB7 LLY LBZ LMM LML L5P

Front & Rear Thermostat Kit for 2001-2021 6.6l Duramax Engines.

Includes:
1x Thermostat Housing Outlet Seal
1x Front Thermostat 85°/185°F, Replaces: 97241129, 131-163
1x Rear Thermostat 82°C/180°F, Replaces: 97241130, 131-131

Fits: 6.6l Duramax LB7 LLY LBZ LMM LML L5P 2001-2021 Chevy GMC 2500/3500