Sierra 9231 Complete Oil Change Kit – 4-Stroke Outboard
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sierra 9231 Complete Oil Change Kit – 4-Stroke Outboard
Everything you need for a clean, complete oil change on your 4-stroke outboard — all in one box. The Sierra 9231 bundles the oil, filter, and all the small consumables that are easy to forget, so you can get the job done right without multiple trips to the parts counter.
Designed for DIY boaters and marine service shops alike, this kit keeps your service bay organized and your engine protected.
What’s Included
- Engine oil (formulated for 4-stroke outboard use)
- Oil filter
- Drain plug gasket
- Disposable oil change funnel
- Maintenance service sticker (for recording service date and engine hours inside the cowling)
- Shop towel
Specifications
- Part Number: 9231 (SKU: 47-9231)
- Application: 4-stroke outboard engines (verify fitment by engine make and model)
- Weight: 5.8 kg (12.8 lb)
Parts Desk Insights
Best use case: Best suited for boaters or technicians performing a routine oil and filter service on a 4-stroke outboard and wanting a single, no-fuss kit with all consumables included. The included maintenance sticker is a practical touch for tracking service intervals directly on the engine. Always verify the kit number matches your specific engine make, model, and year before ordering — Sierra offers a range of engine-specific kits. See also the Sierra 9391 Yamaha 4-Stroke Oil Change Kit for Yamaha-specific fitment, or browse related kits including the Sierra 9227 Oil Change Kit, Sierra 9226 Oil Change Kit, and Sierra 9225 Oil Change Kit to find the right match for your engine.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.