Sierra Prop Spacer 18-4232, Replaces OMC 323943, for Johnson/Evinrude Outboard Motors
The Sierra 18-4232 Prop Spacer is a replacement propeller spacer engineered for Johnson/Evinrude outboard motors. It is installed on the propeller shaft to properly position the propeller and hub against the thrust washer, ensuring correct spacing and alignment for reliable propeller operation. Built to meet or exceed original equipment quality, this spacer is a direct replacement for the OMC 323943 spacer, making it a straightforward swap when replacing a worn, corroded, or missing prop spacer during propeller service or hardware replacement.
This is a small, purpose-built hardware component rather than a multi-piece kit, and it ships as a single spacer per unit. It is intended for buyers who already know their propeller hardware needs replacing and are matching parts by OEM number to ensure correct fitment on Johnson and Evinrude outboards.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-4232
- Product Name: Prop Spacer
- Category: Evinrude Outboard Prop Nuts & Washers
- Weight: 0.02 pounds
- UPC: 030999237262
- Unit Count: 1
Fitment
- Johnson/Evinrude outboard motors
Replaces (OEM)
- OMC 323943
Frequently Asked Questions
What does the Sierra 18-4232 prop spacer fit? The Sierra 18-4232 prop spacer is designed for Johnson/Evinrude outboard motors.
What OEM part number does 18-4232 replace? It replaces OMC 323943, so it is a direct swap for that original equipment prop spacer.
How much does the 18-4232 prop spacer weigh? This prop spacer weighs 0.02 pounds.
How many spacers come in a package? The Sierra 18-4232 is sold as a single spacer, with a unit count of 1.
Is the Sierra 18-4232 an OEM or aftermarket part? It is an aftermarket replacement built by Sierra to meet or exceed original equipment quality, cross-referenced to OMC 323943.
Where is the prop spacer installed on an outboard? The 18-4232 is installed on the propeller shaft, positioning the propeller and hub correctly for proper spacing.
Is there a similar Sierra prop spacer for other applications? Yes, Sierra 18-4231 is a related prop spacer that replaces a different OEM number (320570), so buyers should confirm the correct part number for their application before ordering.
What is the UPC for the Sierra 18-4232 prop spacer? The UPC for this prop spacer is 030999237262.
Will the 18-4232 spacer fit any outboard brand? No, the Sierra 18-4232 is specifically intended for Johnson/Evinrude outboard motors, so it should be matched against the OMC 323943 cross-reference before purchase.
Why replace a prop spacer instead of reusing the old one? A worn, corroded, or damaged prop spacer can allow improper propeller positioning, so replacing it with the Sierra 18-4232 restores correct fit against the thrust washer.