Horton 991455 Fan Clutch HT650 – Freightliner M2 Cummins ISB

Horton 991455 Fan Clutch HT650 – Freightliner M2 Cummins ISBHorton 991455 is a Genuine Horton OEM HT650 pneumatic on off engine fan clutch for Freightliner M2 Business Class trucks with Cummins ISB engines, replacing Horton 981455 (and reman 79A9649). The clutch engages the engine fan only when cooling is required, cutting parasitic horsepower loss and fuel consumption while maintaining engine temperature. 5. 50 in OAL, 6 stud 6. 00 in bolt circle direct mount to the Cummins ISB front engine drive.

Aftermarket replacement for Detroit 23518092 (with later supersession 25036693) and Peterbilt Q21-1002

800259P Dash Valve Specifications Attribute Specification Part Number 800259P Part Name Dash Valve Equivalent to Bendix MV-3 Manufacturer Power Products Application Used in air brake systems for controlling the application and release of parking and emergency brakes in commercial vehicles

Sterling: HDR 56557-005

5/8" is the largest of the standard composite-union tube sizes — typically used on supply-line and tank cross-feed splices

Mack E-Tech (1998-2004)

Freightliner Classic / Columbia / Century / Coronado (1990s–2011)

DOT inspection failures from worn mounting components

5 in Min / Max Height 8

Kenworth and Peterbilt with Meritor MFS series

Mann & Hummel: WK 962/7

Bosch: 9455081032

This branch tee replaces or is equivalent to the following part numbers: