Mercury MerCruiser Quicksilver Washer 20583
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Mercury MerCruiser Quicksilver 12-20583 is a genuine Mercury Marine washer used across a wide range of Mercury, Mariner, MerCruiser, Bravo, transom, remote-control, and older outboard component assemblies. This is a small OEM hardware washer used where the Mercury parts diagram specifically calls for 12-20583 / 20583, helping support proper fastening, spacing, or load distribution at the listed assembly location. Mercury parts references list this as a genuine factory OEM washer with GTIN 745061130005.
Key Features
- Genuine Mercury Marine / Quicksilver washer reference
- Used in supported Mercury, Mariner, and MerCruiser assemblies
- OEM part number: 12-20583
- Base part reference: 20583
- GTIN / UPC reference: 745061130005
- Catalog package reference: approximately 4.50 in. x 3.00 in. x 0.10 in.
- Small hardware item best matched by exact parts diagram location
Engine Compatibility
This washer is shown across many Mercury and MerCruiser parts diagrams, including select older Mercury / Mariner outboards, Bravo sterndrives, Bravo One / Two / Three drives, Bravo XR / X drives, Blackhawk applications, integrated and high-performance transom assemblies, remote controls, and several older MerCruiser GM and Ford engine assemblies depending on diagram location and serial number range.
Serial Number Fitment Notice
Washer fitment depends on the exact engine, drive, transom assembly, control assembly, component group, and diagram position. Always confirm compatibility using the Mercury or MerCruiser serial number and the exact parts diagram before ordering, especially because this washer appears in many different assemblies.
When This Part Needs Replacement
Replace this washer if the original is missing, corroded, bent, distorted, worn, damaged during removal, or no longer sits flat against the mating hardware. Small hardware should also be replaced when it is part of a fastener stack that needs to clamp evenly.
Installation Notes
Confirm the washer’s exact position in the Mercury parts diagram before installation. Match it with the correct screw, bolt, nut, bracket, or linkage component for the assembly being serviced. Tighten the related hardware according to the Mercury service manual for the specific engine or drive application.
Alternate/Superseded Part Numbers
- 12-20583
- 20583
- Mercury Marine 20583
- Quicksilver 12-20583
Parts Desk Insight
This washer has a very wide application range, so the safest match is the diagram location, not the engine size or drive family alone. If the parts drawing calls for 12-20583, use that reference rather than trying to match a generic washer by appearance.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
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.