Federal Military Parts (763) 310-9340
PULLEY , OVERRUNNING CLUTCH , Serpentine ; M1114 Hummer ; 12469483 , 600634
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The HMMWV 8-groove over-running alternator/clutch pulley (often found on 200A systems) enables the serpentine belt to drive the alternator smoothly while preventing the alternator's high-inertia rotor from back-driving the belt during engine deceleration. This extends belt life and prevents system damage.[1, 2]
Key Replacement Specs & Details
- Part Numbers: 12469483, 12469186
- NSN: 3020-01-491-2671 or 3020-01-444-5447
- Belt Type: 8-groove serpentine
- Application: Specifically fits HMMWV variants (including M998, M1025, M1123, and M1151) outfitted with heavy-duty 200-amp alternators.