Thermostat Housing With 1.25-Inch Connector Compatible With B And D Series

Compatible with B-Series engines from 1988 to 2001 and D-Series engines from 1988 to 2000, excluding D16Z6.This thermostat housing is a direct replacement for the unit and installs in the factory location beside the intake manifold using two bolts.It features a threaded water outlet port sized for a standard 1.25-inch radiator hose fitting, with thread specification 16OR (1-5/16-12 SAE) and an seal for leak-free.The housing also includes a port for the fan switch and a 1/8 NPT accessory port, with a plug included for the accessory port.A machined and threaded M6 hole is provided for the engine harness ground ring.Two hole locations accommodate fitment across the specified B-Series and D-Series applications.The radiator outlet follows the angle, slightly upward.Slight modification may be required for some transmissions.May not fit with some scatter shields.

• Model Compatibility: Fits B and D series engines as a direct replacement thermostat housing.Connector Specification: Includes a 1.25-inch connector matching the standard size specified in the.Functional Purpose: Restores thermostat housing function for proper engine coolant temperature regulation.Material Configuration: Features a thermostat housing constructed to meet factory dimensional and operational requirements.Installation Requirement: Designed for installation using existing mounting points and hardware on compatible B and D series engines.