Water Pump Impeller with Key 5040046 18-8921 for Evinrude Johnson OMC 15 HP
Water Pump Impeller with Key 5040046 18-8921 for Evinrude Johnson OMC 15 HP
Product Overview
Water pump impeller with key for Evinrude, Johnson and OMC 15 HP outboards, supplied as 1 x impeller and key. It replaces Evinrude Johnson OMC 5040046, Mercury 47-803748 and 47-8M0135803, Nissan Tohatsu 334650210, 334650210M and 334-65021-0, Honda 19210-935-003 and 19210-935-A01, plus Sierra 18-8921 and CEF 500383. The impeller has 8 blades and is 23.8 mm high, made from neoprene and hardened nylon.
Specifications & Attributes
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Water Pump Impeller with Key |
| Engine Type | Evinrude / Johnson / OMC outboard |
| Horsepower | 15 HP |
| Number of Blades | 8 |
| Height | 23.8 mm (0.94 in) |
| Material | Neoprene and hardened nylon |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Evinrude / Johnson / OMC | 5040046 |
| Mercury / Mariner | 47-803748, 47-8M0135803 |
| Nissan / Tohatsu | 334650210, 334650210M, 334-65021-0 |
| Honda | 19210-935-003, 19210-935-A01 |
| Sierra | 18-8921 |
| CEF | 500383 |
Compatible Engines
Fits the following outboards:
| Brand | HP |
|---|---|
| Evinrude / Johnson / OMC | 15 HP |
| Mercury / Tohatsu / Honda | Cross-reference applications |
What's Included
| Component | Qty |
|---|---|
| Water Pump Impeller | 1 |
| Impeller Key | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Before You Buy
- Verify your engine model and serial number before ordering
- Fits Evinrude, Johnson and OMC 15 HP outboards
- Check the pump housing and cup for scoring while it is apart
- Renew the cover gasket with the impeller — a reused one usually weeps
- 30-Day Easy Returns
- Free Worldwide Shipping
- OEM Quality Without the Markup
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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.
What payment methods do you accept?
We currently accept PayPal — a fast, secure way to pay online. Credit card payments (Visa, Mastercard, American Express) and Shopify Payments are being set up and will be available soon. We appreciate your patience.