Sierra Honda Outboard Water Pump Service Kit 18-3281 | BF25 / BF30
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Sierra Honda Outboard Water Pump Service Kit 18-3281
- Part Number: 18-3281 (Sierra)
- Brand: Sierra
- Product Type: Water Pump Service Kit
- Fits: Honda BF25 / BF30 outboards
- UPC: 808282227142
Sierra 18-3281 is a complete water-pump service kit for selected Honda BF25 and BF30 outboards. It includes all primary wear components for a full lower-unit water pump service in a single package, replacing Honda OEM kit references 06192-ZV7-000, 06192-ZV7-010, and 06192-ZW2-000.
Kit Contents
- Water pump impeller — Sierra 18-3249
- Water pump gasket — Sierra 18-2496
- Impeller key — Sierra 18-3269
- Water pump O-ring
Compatible Applications
Verified Honda outboard applications:
- Honda BF25
- Honda BF30
Confirm the exact Honda model and serial number before ordering. Honda BF25 and BF30 engines have used several closely related water-pump kit numbers across revisions — matching the existing OEM number from your parts diagram is the most reliable fitment method.
Cross-Reference Part Numbers
- Sierra: 18-3281
- Supplier/Catalogue Reference: 47-3281
- Honda: 06192-ZV7-000
- Honda: 06192-ZV7-010
- Honda: 06192-ZW2-000
Note: Honda also references 06192-ZV7-020 as a closely related revision. Sierra 18-3281 is cross-referenced to the -000, -010, and ZW2-000 variants specifically.
When to Service the Water Pump
- Cooling water flow is weak or intermittent
- Engine has experienced overheating
- Impeller has reached or exceeded the recommended service interval
- Engine has been operated in sand, silt, or debris-heavy water
- Impeller vanes are cracked, stiff, or permanently set
- Pump gasket or O-ring shows leakage or deterioration
- Lower unit is already removed for scheduled service
Installation Notes
- Remove the lower unit following Honda service procedures for the BF25 / BF30
- Inspect the pump housing and all wear surfaces before reassembly
- Replace the impeller, key, gasket, and O-ring from the kit as a complete set
- Lubricate the impeller with a water-safe assembly lubricant before fitting
- Rotate the driveshaft in its normal operating direction while seating the pump housing
- Confirm all impeller vanes fold in the correct rotational direction
- Check the water-tube connection and seal during reassembly
- Verify strong cooling-water discharge after startup before returning to service
Parts Desk Insights
Best use case: This kit is the right choice for scheduled water pump service on Honda BF25 and BF30 outboards. Honda recommends periodic impeller replacement as part of routine outboard maintenance — this kit covers everything needed in one box. It's also the logical choice any time the lower unit is already off the engine for other work.
Common issue: Honda BF25 and BF30 engines use several closely related pump-kit numbers across model revisions. Customers who select by horsepower alone can end up with the wrong kit variant. Always verify the OEM number — 06192-ZV7-000, 06192-ZV7-010, or 06192-ZW2-000 — against your engine's parts diagram before ordering. If your engine references 06192-ZV7-020, confirm compatibility with Sierra's catalog before purchasing.
Browse all water pump service kits in our Impeller Service Kits collection, or shop Engine Parts & Maintenance for related cooling system components.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.