Interstate McBee Thermostat Seal – 3S9643 (Caterpillar / Cummins / Mack)
7 in stock
Keep your Caterpillar diesel engine cooling system properly sealed with the Interstate-McBee 3S9643CAT Thermostat Seal. This high-quality aftermarket replacement seal is designed for use with Caterpillar engine thermostat/regulator assemblies and helps prevent coolant leakage around the thermostat.
Interstate-McBee lists M-3S9643 as a Thermostat Seal / Regulator Seal for Caterpillar applications, including 3406E and C15 engines.
This seal is an excellent replacement choice when servicing the thermostat or cooling system on heavy-duty Caterpillar diesel engines.
Features & Benefits:
Cross Reference / Interchange:
Cross-reference information should be verified against the engine serial number and application before ordering.
Common Applications:
Condition: New
