18-3091 Water Pump Impeller Kit for Johnson Evinrude Outboard 4 4.5 5 6 7.5 8 HP
18-3091 Water Pump Impeller Kit for Johnson Evinrude Outboard 4 4.5 5 6 7.5 8 HP
Product Overview
Complete water pump impeller service kit for Johnson and Evinrude outboards from 4 HP to 8 HP, supplied with the drive key and gasket. Replaces OEM 0436137 (Sierra 18-3091, Mallory 9-45214, GLM 89500, CEF 500354) and fits both 2-stroke and 4-stroke models from 1980 onwards. A worn impeller is the usual cause of a weak tell-tale and overheating at low speed.
Specifications & Attributes
| Specification | Metric | Imperial |
|---|---|---|
| Overall Diameter | 38.40 mm | 1.51 in |
| Impeller Height | 17.90 mm | 0.70 in |
| Hub Shaft Diameter | 11.2 mm | 0.44 in |
| Number of Blades | 6 | 6 |
| Material | Neoprene and metal alloy | Neoprene and metal alloy |
| Condition | New / New with tags | New / New with tags |
| Country of Manufacture | Taiwan | Taiwan |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Johnson / Evinrude | 0389576, 0433914, 0436137, 0433936 |
| Johnson / Evinrude | 0777822, 0778225, 389576, 433914, 777822 |
| Sierra | 18-3091 |
| Mallory | 9-45214 |
| GLM | 89500 |
| CEF | 500354 |
Impeller drive key reference: 0300611 / 300611. These components are also included in repair kits 396644, 0396644, 0765603 and 389844.
Compatible Engines
Fits the following Johnson / Evinrude outboards:
| Engine | Years |
|---|---|
| 4 HP | 1986-1992 |
| 4 HP Deluxe | 1980-1997 |
| 4.5 HP | 1980-1997 |
| 5 HP 2-Stroke | 1980-2001 |
| 5 HP 4-Stroke | 1980 and later |
| 6 HP | 1984-2005 |
| 6 HP 4-Stroke | 1998 and later |
| 8 HP 2-Stroke | 1986-1997 |
| 8 HP 4-Stroke | 1980-2005 |
What's Included
| Component | Qty |
|---|---|
| Water Pump Impeller | 1 |
| Impeller Key | 1 |
| Gasket / Seal | 2 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Before You Buy
- Verify your engine model or serial number before ordering
- Covers both 2-stroke and 4-stroke Johnson / Evinrude 4-8 HP — check your model above
- Always fit a new gasket with a new impeller to avoid leaks
- 30-Day Easy Returns
- Free Worldwide Shipping
- OEM Quality Without the Markup
Verfügbarkeit für Abholungen konnte nicht geladen werden
Boat Owners' Review
Before You Buy
Frequently Asked Questions
What is your refund policy?
We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.
See our full Refund Policy for complete details.
How does shipping work?
Free international shipping on every order — no minimums. We operate a global warehouse network with a main distribution centre in Asia (10-20 business days). We also hold stock in regional warehouses across the United States, Germany, the United Kingdom, Australia, and Poland (opening soon) — most orders arrive in 1-3 business days within those countries and in 2-8 business days to nearby regions. Tracking included.
See our full Shipping Policy.
How do you keep prices fair?
We cut out the middlemen. XRmarine sources directly from quality manufacturers and sells at honest prices. Same OEM-quality parts, no dealership markup. Every order comes with free shipping, real expert support, and a 1-year warranty.
Learn more on our About Us page.
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