Mercury MerCruiser Quicksilver Engine Oil-Drain Plug Washer 8035161
In stock items ship same or next day.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Product Description
Mercury MerCruiser Quicksilver 12-8035161 is the engine oil-drain plug washer used on specified small Mercury FourStroke outboards. It seats at the oil-pan drain bolt to seal the engine-oil drain connection.
Key Features
- OEM oil-drain sealing washer.
- Full catalog reference: 12-8035161.
- Identified by Mercury’s maintenance-parts guide for F4–F6 engine oil service.
Engine Compatibility
Verified applications include Mercury F4–F6 FourStroke engines, with exact fitment checked by serial number. The Mercury 4HP oil-pan diagram for serials 0R067090–0R411837 lists this washer at the drain-bolt position. It also appears in specified smaller FourStroke oil-pan assemblies.
Replacement and Installation
Renew a damaged or compressed sealing washer during engine-oil service. Clean the drain-bolt seating face and inspect the bolt threads. Tighten using the engine-manual specification and check for leakage after refilling.
Parts Desk Insight
This is the engine-oil drain washer. The gearcase drain/vent screws use a separate seal reference in Mercury’s F4–F6 maintenance guide.
Manufacturer Reference
View Mercury’s outboard maintenance-parts guide.
Manufacturer Parts Lookup
Use Mercury’s official parts finder to check the part against your engine or drive serial number.
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.