Description
Sierra 18-4248-9 Drain Fill Plug Washer 5 Pack
The Sierra 18-4248-9 is a 5-pack of marine drain/fill plug washers designed for compatible lower unit and gearcase service applications. These plastic replacement washers help seal drain and fill screw locations during gear lube maintenance on supported Johnson, Evinrude, OMC, and Volvo Penta applications where this exact washer part number is specified.
Key Features
- Genuine Sierra 18-4248-9 drain/fill plug washer set
- Includes 5 replacement washers per package
- Plastic washer construction for compatible marine drain and fill screw applications
- Designed for lower unit and gearcase gear lube service
- Helps provide a proper seal at drain or fill plug locations
- Supersedes Sierra 18-4248 where applicable
- Replacement washer pack only; drain/fill screw not included
Fitment
- Brand: Sierra
- Part Number: 18-4248-9
- Product Type: Drain/fill plug washer
- Quantity: 5 washers per pack
- Material: Plastic
- Use With: Sierra 18-2387 lower unit drain/fill screw where specified
- Common Applications: Johnson/Evinrude outboards, OMC sterndrives, and Volvo Penta applications where this washer is specified
- Replaces OEM Numbers: Johnson/Evinrude 311598, OMC 311598, OMC 3852105, Volvo Penta 3852105
- Also Interchanges With: Mallory 9-60408
- Confirm fit by matching Sierra part number 18-4248-9, OEM cross-reference, drain/fill screw type, model, serial range, and gearcase application before ordering
Why You Should Buy
- Convenient 5-pack for routine lower unit and gearcase maintenance
- Practical replacement for worn, compressed, cracked, or missing drain plug washers
- Helps support proper sealing during marine gear lube service
- Useful for boat owners, repair shops, and seasonal maintenance kits
- Easy to verify by exact Sierra part number and OEM replacement number
Common Applications
- Marine lower unit drain plug service
- Gearcase fill plug washer replacement
- Johnson and Evinrude outboard maintenance
- OMC sterndrive service applications
- Volvo Penta applications requiring washer 3852105
FAQ
- How many washers are included with Sierra 18-4248-9? This package includes 5 drain/fill plug washers.
- What material are these washers made from? Sierra 18-4248-9 washers are made from plastic.
- Does this include the drain/fill screw? No, this listing is for the washer 5-pack only. The drain/fill screw is not included.
- What OEM numbers does this washer replace? It replaces Johnson/Evinrude 311598, OMC 311598, OMC 3852105, and Volvo Penta 3852105 where applicable.
- How do I confirm compatibility? Match Sierra part number 18-4248-9, the OEM replacement number, drain/fill screw style, model, serial range, and gearcase application before ordering.