Description
Sierra 18-2694 Johnson Evinrude Gearcase Seal Kit
The Sierra 18-2694 gearcase seal kit is designed for compatible Johnson and Evinrude lower unit service applications where OEM part number 433550 or Sierra 18-2694 is specified. This kit provides the replacement sealing components needed to help service the gearcase, reduce the risk of gear lube leaks, and help protect the lower unit from water intrusion in matching outboard applications.
Key Features
- Sierra 18-2694 gearcase seal kit
- Designed for compatible Johnson and Evinrude lower unit applications
- Replaces Johnson/Evinrude OEM part number 433550 where applicable
- Also referenced as OEM 0433550 in compatible applications
- Helps reseal the gearcase during lower unit maintenance or repair
- Useful for addressing worn seals, gear lube leaks, or water intrusion concerns
- Marine replacement kit built to meet OEM-style service requirements
Fitment
- Brand: Sierra
- Part Number: 18-2694
- Provided Part Reference: 433550
- Product Type: Gearcase seal kit / lower unit seal kit
- Common Application: Johnson and Evinrude outboard lower unit service
- Common Fitment Reference: Select Johnson/Evinrude 40 HP, 48 HP, and 50 HP models where this exact kit is specified
- Replaces OEM Number: Johnson/Evinrude 433550 and 0433550 where applicable
- Interchange Reference: GLM 87614 and Mallory 9-74104 where specifications match
- Confirm fit by matching Sierra part number 18-2694, OEM number 433550, engine model, horsepower, year, serial range, gearcase style, and application before ordering
Kit Includes
- Replacement seals for compatible gearcase service
- Replacement gaskets for supported lower unit applications
- Replacement O-rings and related sealing components as supplied in the kit
- Kit contents should be matched to the service manual and application before installation
Why You Should Buy
- Practical seal kit for lower unit service, repair, or rebuild work
- Helps restore proper gearcase sealing in compatible Johnson and Evinrude applications
- Useful for marine repair shops, boat owners, and seasonal outboard maintenance
- Helps protect gear lube from contamination when installed correctly
- Easy to verify by matching Sierra 18-2694 and Johnson/Evinrude 433550 part references
Common Applications
- Johnson outboard lower unit service
- Evinrude outboard gearcase repair
- Marine lower unit seal replacement
- Gear lube leak repair on compatible applications
- Applications requiring Sierra 18-2694 or Johnson/Evinrude 433550 gearcase seal kit
FAQ
- What is Sierra 18-2694 used for? Sierra 18-2694 is a gearcase seal kit used for compatible Johnson and Evinrude lower unit service applications.
- What OEM number does this kit replace? This kit replaces Johnson/Evinrude 433550 and 0433550 where applicable.
- Is this the same as the 433550 gearcase seal kit? Yes, Sierra 18-2694 is commonly used as the Sierra replacement reference for Johnson/Evinrude 433550 applications.
- Does this fit all Johnson and Evinrude outboards? No, fitment must be confirmed by exact part number, model, horsepower, year, serial range, and gearcase style.
- How do I confirm compatibility? Match Sierra part number 18-2694, OEM number 433550, engine model, horsepower, serial range, lower unit type, and service manual requirements before ordering.