Description

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.