Qonsy
Magnetic & Non-Magnetic Drain Screw Set for Yamaha Outboard Lower Unit, 2-Pack with Gaskets Replaces 688-45341-10 90340-08002
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The Magnetic & Non-Magnetic Drain Screw Set for Yamaha Outboard Lower Unit, 2-Pack with Gaskets Replaces 688-45341-10 90340-08002 is a category leader on buyer feedback in the retro motherboards category, priced around $12.99, rated 5.0★ across 12 verified Amazon reviews. A confident buy for most shoppers in this category.
SpecPicks Verdict
SpecPicks classifies Magnetic & Non-Magnetic Drain Screw Set for Yamaha Outboard Lower… as a category leader on buyer feedback in the retro motherboards category, based on 12 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Qonsy's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 5.0★ average across customer reviews
- ✓ Backed by Qonsy's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Stainless Steel with Corrosion Resistance: Crafted from stainless steel with a precision-cut thread and an upgraded sealing gasket, exhaust plug designed to resist wear, corrosion, and high-temperature conditions, contributing to extended service life.
- Direct OEM Replacement for Yamaha Models: Engineered to replace OEM numbers 688-45341-10-00, 688-45341, 90340-08002-00, and 90340-08002, compatible with Yamaha outboard engines from 130 HP to 300 HP.
- Magnetic Screw for Capturing Metal Debris: The magnetic drain screw includes an embedded magnet to help attract and capture fine metal particles from the gear oil, supporting early detection of potential wear.
- Non-Magnetic Screw for Vent Applications: The non-magnetic screw is intended for installation in the upper vent port, designed to avoid interference with air pressure balance during oil changes.
- Complete Kit with Sealing Gaskets: Includes 1 magnetic screw, 1 non-magnetic screw, and 2 corresponding sealing gaskets to help ensure a proper seal and prevent fluid leaks.
Full Specifications
| Brand | Qonsy |
|---|---|
| Package Dimensions | 1.85 x 1.61 x 0.47 inches |
| Complete Kit with Sealing Gaskets | Includes 1 magnetic screw, 1 non-magnetic screw, and 2 corresponding sealing gaskets to help ensure a proper seal and prevent fluid leaks. |
Ready to buy?
Magnetic & Non-Magnetic Drain Screw Set for Yamaha Outboard Lower Unit, 2-Pack with Gaskets Replaces 688-45341-10 90340-08002 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
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