Mercury 8M0081914 – Oil Change Kit | 15 & 20 HP Carbureted FourStroke Outboard
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Mercury 8M0081914 – Oil Change Kit | 15 & 20 HP Carbureted FourStroke Outboard
Part Number: 8M0081914
Brand: Mercury Marine
Official Product Type: Oil Change Kit
Oil Viscosity: SAE 25W-40 4-Stroke Marine Engine Oil
Oil Volume: 1 Litre (33.8 fl oz)
Engine Family: Mercury FourStroke (Carbureted)
About This Kit
Mercury 8M0081914 is a genuine OEM oil change kit designed specifically for Mercury 15 HP and 20 HP carbureted FourStroke outboards. It bundles the core service items needed for a complete engine oil change into one convenient package — the correct oil, filter, and drain plug seal — so you have everything on hand before starting the job. The included 25W-40 marine-specific oil is formulated with corrosion inhibitors for on-water use and off-season storage protection.
Kit Contents
- 1 litre Mercury SAE 25W-40 4-Stroke Marine Engine Oil
- Mercury premium oil filter (ref. 8M0162831)
- Drain plug seal (ref. 895146)
- Service instructions
Compatible Applications
Designed for the carbureted Mercury FourStroke platform. Always confirm fitment using your engine serial number before ordering — EFI and later-generation variants of the same horsepower may require different service parts.
- Mercury 15 HP Carbureted FourStroke outboard
- Mercury 20 HP Carbureted FourStroke outboard
Serial Number & Fitment Notice
Oil change kit fitment varies by engine model, production year, and carbureted vs. EFI configuration. Confirm 8M0081914 against your Mercury engine serial number, owner's manual, or the Mercury parts catalog before ordering. Do not select this kit by horsepower alone.
Service Interval
Mercury recommends changing the engine oil and filter every 100 hours or annually, whichever comes first. This kit is also appropriate for use during seasonal maintenance, winterization, or any time the oil and filter are due for replacement. Routine oil changes remove contaminated oil, reduce internal wear, and protect the engine during both active use and storage.
Installation Notes
Follow the Mercury owner's manual or service manual for the correct oil change procedure. Warm the engine briefly as directed before draining, drain the old oil safely, replace the oil filter and drain plug seal, refill with the supplied 25W-40 marine oil to the correct level, then run the engine and inspect carefully for leaks. Recheck the oil level after shutdown before returning the outboard to service.
Related Products
Parts Desk Insights
Best Use Case: This kit is the cleanest solution for a DIY or shop oil change on a carbureted Mercury 15 or 20 HP FourStroke. Having the oil, filter, and drain seal in one kit eliminates the risk of starting the job and discovering a missing component. It's a strong seller for spring commissioning and fall winterization — customers doing seasonal service appreciate not having to source parts separately.
Common Mistakes: The most frequent error is assuming this kit fits all 15/20 HP Mercury FourStroke outboards. The carbureted and EFI versions of these engines can use different oil filters and service kits, so horsepower alone is not a reliable selector. Always confirm the engine is the carbureted variant using the serial number. A second common mistake is skipping the drain plug seal replacement — the old seal compresses and can weep oil if reused. The seal is included in this kit for a reason; always install the new one.
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.