Universal M-18 Recommended Maintenance Schedule
| Service Procedure | Recommended Service Interval(s) |
|---|---|
| Replace engine oil & oil filter | 100 hours/12 months under normal operating conditions |
| Replace fuel filter | 400 hours |
| Replace air filter element | 1 year |
| Cleaning heat exchanger | 500 hours |
Universal M-18 Service Part Numbers
| Engine oil filter | Fram PH3593A |
| Engine air filter | |
| Fuel filter | Wix 33390 |
| Engine V-belt | Old Alternator Bracket: Gates 7410 V-Belt |
| New Alternator Bracket: Gates 7390 V-Belt | |
| Glow plug | NGK (2031) Y103V |
| Thermostat | |
| Radiator cap | Duralast 7013 |
| Raw water impeller | Sherwood: Sherwood 10077K-SHW |
| Oberdorfer: Impeller 6593, Gasket 6599, O-ring 9797-03 | |
Universal M-18 Fluid Specs and Capacities
| Engine oil | SAE-30 HD | Rotella T1 SAE 30 |
| 10W-40 HD | Castrol GTX 10W-40 | |
| Engine coolant | Prestone 50/50 Prediluted | |
| Transmission fluid | Valvoline DEX/MERC ATF | |
Fluid capacities are nominal - always fill to proper level on dipstick or to fill plug level as applicable |
|
|---|---|
| Engine oil capacity | 2.5-3.0 quarts w/oil filter |
| Cooling system capacity | 3.0 quarts |
| Transmission capacity | 10.0 fl. oz. |