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This aftermarket replacement 190°F thermostat with O-ring is intended for the listed Cummins applications and cross-references part numbers 5292712, 4929644, 4929643, and 3974371. A thermostat regulates coolant flow according to engine temperature to support normal cooling system operation.
Key Features & PerformanceQ: What does this thermostat do? A: A thermostat regulates coolant flow according to engine temperature, supporting normal temperature regulation in the cooling system.
Q: How should fitment be verified? A: Compare the complete part number, including 5292712, 4929644, 4929643, or 3974371, with the existing component and confirm the complete equipment model designation before purchase.
This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.

5292712 190°F Thermostat w/ O-Ring for Cummins ISB6.7 4929643 4929644
$46.19
5292712 190°F Thermostat w/ O-Ring for Cummins ISB6.7 4929644 3974371 4929643
$18.89
4929643 3974371 5292712 190°F Thermostat w/ O-Ring for Cummins ISB6.7
$46.19
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