Mercury MerCruiser Flat Washer 2-Pack - 12-44164
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The Mercury MerCruiser Quicksilver 12-44164 is a genuine Mercury Marine OEM flat washer used in select MerCruiser sterndrive, transom, and engine assembly locations where the factory parts diagram calls for 44164 / 12-44164. This washer is used as diagram-specific load-spreading hardware in high-clamp-load areas such as Bravo sterndrive, transom, gimbal, and engine-related assemblies.
Key Features
- Genuine Mercury Marine factory OEM washer.
- Mercury/MerCruiser part number: 12-44164.
- Manufacturer part number: 44164.
- Official part label: WASHER.
- GTIN/UPC: 745061151543.
- Listed shipping weight: 0.03 lb.
- Listed shipping dimensions: 1.75 in. L x 1.75 in. W x 0.25 in. H.
- Used in select MerCruiser sterndrive, transom, gimbal, and engine hardware locations where specified by diagram.
Application Compatibility
Common where-used application groups include select MerCruiser drive, transom, and engine assemblies by serial number and diagram location, including:
- Blackhawk applications where specified
- Bravo sterndrive applications
- Bravo One applications
- Bravo Two applications
- Bravo Three applications
- Bravo X One / X Two / X Three applications
- Bravo XR One / XR Three / XR Sportmaster applications
- Bravo XZ One applications
- Hi Performance Transom applications
- Integrated Transom applications
- Select 496 MAG and 496 MAG H.O. applications where specified
- Select 8.2L Mag and 8.2L Mag H.O. applications where specified
Use this washer only where the Mercury/MerCruiser parts diagram specifically calls for 12-44164 / 44164.
Fitment Notice
Confirm fitment by engine or drive serial number, transom assembly, gimbal housing, bracket location, and exact Mercury parts diagram before ordering. Similar MerCruiser washers can have different inside diameters, outside diameters, thicknesses, and load ratings, so matching by general appearance is not enough.
When This Part Needs Replacement
Replace this washer if it is missing, bent, deeply corroded, distorted, grooved, cracked, or damaged during disassembly. Washers used in pivot, transom, gimbal, and engine-mounting areas should not be reused if the surface is no longer flat or if the washer can no longer distribute clamp load evenly.
Installation Notes
Install this washer only in the exact diagram location that calls for 12-44164 / 44164. Inspect the mating bolt, nut, pivot hardware, bushing, gimbal housing surface, engine mount surface, or transom hardware stack while the assembly is apart. Follow the MerCruiser service manual for the correct washer placement and torque procedure for the specific assembly.
Alternate/Superseded Part Numbers
- 12-44164 — Mercury/MerCruiser formatted part number
- 44164 — Manufacturer part number
Parts Desk Insight
Large flat washers in Bravo, transom, and engine-mounting assemblies are not just generic spacers. They help distribute clamp load across the hardware stack, so the correct washer thickness and diameter matter when servicing pivot hardware, gimbal assemblies, or engine mounting points.
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.