Description
SIERRA Johnson/Evinrude/OMC Slotted Gearcase Drain/Fill Screw – 18-2387
Non-magnetic slotted gearcase drain/fill screw for selected Johnson/Evinrude and OMC V4/V6, 60-75 HP 3-cylinder and 20-35 HP applications using OEM 307551 / 912625 / 982851. It is intended as an application-specific replacement for the original marine component and is cross-referenced by the OEM/aftermarket numbers listed below.
- Application: selected Johnson/Evinrude and OMC V4/V6, 60-75 HP 3-cylinder and 20-35 HP applications using OEM 307551 / 912625 / 982851
- Function: Closes the lower-unit drain/fill opening for gear-lubricant retention and service access.
- Head style: Slotted
- Component: Non-magnetic gearcase drain/fill screw
- Interchange: GLM: 22420; Johnson/Evinrude Outboard: 307551, 912625; Mallory: 9-72655; OMC Stern Drive: 307551, 912625, 982851
Confirm the engine or sterndrive model, serial range and original part number before installation. During service, inspect adjacent seals, fasteners, hoses and mating surfaces so a related fault is not carried into the repaired assembly.
Specifications
- Head style: Slotted
- Component: Non-magnetic gearcase drain/fill screw
Interchange / Replaces
- GLM: 22420
- Johnson/Evinrude Outboard: 307551, 912625
- Mallory: 9-72655
- OMC Stern Drive: 307551, 912625, 982851

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