Water Pump Flexible Impeller Kit for Johnson Yanmar 09-0810B 09-810B-9
Water Pump Flexible Impeller Kit for Johnson Yanmar 09-0810B 09-810B-9
Product Overview
51 mm flexible water pump impeller kit with a 6-blade rubber body, brass insert and pin drive, for Johnson and Yanmar raw-water pumps. Supplied with 2 gaskets and 1 O-ring for a complete pump service, and replaces 8 OEM part numbers including Johnson 09-0810B / 09-810B-9 (Sierra 18-45713). Restores cooling water flow on engines that run hot at low speed.
Specifications & Attributes
| Specification | Metric | Imperial |
|---|---|---|
| Outer Diameter | 51 mm | 2 in |
| Width | 22 mm | 7/8 in |
| Shaft Diameter | 12.0 mm | 0.47 in |
| Number of Blades | 6 | 6 |
| Drive Type | Pin Drive | Pin Drive |
| Insert Material | Brass | Brass |
| Impeller Material | Flexible rubber | Flexible rubber |
| Engine Type | Johnson Pump | Johnson Pump |
| Condition | New / New with tags | New / New with tags |
| Country of Origin | Taiwan | Taiwan |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Johnson | 09-0810B, 09-810B-9 |
| Yanmar | X08810B, X08810B-01, 128990-42200 |
| DJ Pump | 08-39-0601 |
| Mallory | 9-45713 |
| Sierra | 18-45713 |
Compatible Engines
- Johnson raw-water pumps using 09-0810B / 09-810B-9
- Johnson Pump F4 and F5 series flexible impeller pumps
- Yanmar engines using X08810B / X08810B-01 / 128990-42200
- DJ Pump and Mallory pumps taking 08-39-0601 / 9-45713
This is a pod-mounted flexible impeller kit rather than an engine-specific part — verify the part number stamped on your existing impeller before ordering.
What's Included
| Component | Qty |
|---|---|
| Flexible Impeller | 1 |
| Gasket | 2 |
| O-Ring | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Before You Buy
- Verify the part number on your existing impeller before ordering
- Pin-drive 51 mm impeller — check the shaft diameter matches
- Always fit new gaskets with a new impeller to avoid leaks
- 30-Day Easy Returns
- Free Worldwide Shipping
- OEM Quality Without the Markup
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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.