Description

Mercury / MerCruiser Quicksilver O-Ring Kit — 8M0164166

The Mercury Quicksilver 8M0164166 O-Ring Kit is a genuine OEM seal kit used on select Mercury and MerCruiser components. It contains replacement O-ring seals designed to prevent fluid leaks and maintain proper sealing in marine engine systems.

---

Key Details

• Part Number: 8M0164166 (also listed as 25-8M0164166)

• Component Type: O-ring seal kit

• OEM Brand: Mercury Marine / Quicksilver

• UPC: 678633122989

---

Typical Application

This kit is commonly used for trim tab or related hydraulic sealing applications in Mercury marine systems.

O-rings are used to:

• Seal hydraulic or fluid passages

• Prevent oil or fluid leaks

• Maintain proper pressure inside assemblies

They are often replaced during maintenance when servicing trim or hydraulic components.

---

Features

• Genuine Mercury OEM sealing components

• Designed for exact fit and proper compression

• Made from marine-grade rubber compounds resistant to oil, heat, and corrosion

• Used during routine maintenance or component rebuilds

---

Service Tip

O-rings should be replaced whenever a component is disassembled because reused seals can:

• Lose elasticity

• Fail to reseal properly

• Cause fluid leaks or pressure loss

Using OEM kits ensures the correct size and material specification for marine environments.

* not exactly as shown

---

Fitment Tip:
Always confirm compatibility using the engine or component serial number in the Mercury parts catalog. Mercury uses many O-ring sizes that appear similar but are designed for specific assemblies.

---

Shipping: Ships same or next day for fast Canada wide shipping.