Water pump for M35A3 and M1078 (CAT 3116 engine). Pump P/N 4P3683 (4P3682), NSN 2930013982011. Also replaces 5R9022, 3522149, NSN 2930013616523. Made in USA.
Applications replacing 5R9022 (M1078 LMTV) require the following pump modifications:
The unused coolant neck must be cut shorter and a 1 inch expansion plug installed in the same neck.
The v-belt must be changed to type 9345.