• 91-8M0142969 Mercury MerCruiser Shift Shaft Tool | Genuine Quicksilver OEM Part
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91-8M0142969 Mercury MerCruiser Shift Shaft Tool | Genuine Quicksilver OEM Part

91-8M0142969 Mercury MerCruiser Shift Shaft Tool | Genuine Quicksilver OEM Part

$209.85 AUD
$209.85 AUD
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🔧 Product Description

Genuine Quicksilver Shift Shaft Tool - Part Number: 91-8M0142969

A genuine Mercury / Quicksilver service tool used for shift shaft service on modern Mercury gear housings. This tool is used when servicing the shift shaft bushing and seal area on Mercury V6 and V8 FourStroke outboard lower units where the service procedure specifies tool 91-8M0142969.

⚙️ Key Features

  • Genuine Mercury / Quicksilver service tool
  • Correct Mercury part number 91-8M0142969
  • Used for shift shaft service on modern Mercury gearcases
  • Supports service of shift shaft bushing and O-ring assemblies
  • Related to bushing 23-8M0142859 and O-ring 25-8M0142860 service family

🚤 Compatibility

Commonly used on

  • Mercury 3.4L V6 FourStroke gear housing service
  • Mercury 4.6L V8 FourStroke gear housing service
  • Mercury Pro XS and SeaPro gearcase shift shaft bushing service
  • Gear housing service procedures requiring tool 91-8M0142969

Typically suits

  • Engine models:
  • Mercury 175HP 3.4L V6 FourStroke - serial 2B529482 and up where the service procedure specifies 91-8M0142969
  • Mercury 175HP 3.4L V6 Pro XS FourStroke - serial 2B529482 and up where specified
  • Mercury 200HP 3.4L V6 FourStroke - serial 2B529482 and up where specified
  • Mercury 200HP 3.4L V6 SeaPro FourStroke - serial 2B529482 and up where specified
  • Mercury 200HP 4.6L V8 Pro XS FourStroke - serial 2B529482 and up where specified
  • Mercury 225HP 3.4L V6 FourStroke - serial 2B529482 and up where specified
  • Mercury 225HP 4.6L V8 SeaPro FourStroke - serial 2B529482 and up where specified
  • Mercury 225HP 4.6L V8 Pro XS FourStroke - serial 2B529482 and up where specified
  • Mercury 250HP 4.6L V8 FourStroke - serial 2B529482 and up where specified
  • Mercury 250HP 4.6L V8 Pro XS FourStroke - serial 2B529482 and up where specified
  • Mercury 300HP 4.6L V8 FourStroke - serial 2B529482 and up where specified
  • Mercury 300HP 4.6L V8 Pro XS FourStroke - serial 2B529482 and up where specified
  • Mercury 4.80 torpedo, 5.44 torpedo and Torque Master gearcase applications using the Design 1 shift shaft bushing service family
  • HP Range: commonly 175HP - 300HP where specified
  • Engine Type: Mercury 3.4L V6 and 4.6L V8 FourStroke outboard
  • System Type: Gearcase shift shaft service tool

🔌 Function

The shift shaft tool supports correct service and installation of shift shaft components in the gear housing. Using the proper tool helps prevent bushing, O-ring or shift shaft damage during repair.

⚠️ Common Signs of Failure

Common signs the tool is required

  • Shift shaft bushing replacement
  • Shift shaft O-ring service
  • Gearcase reseal procedure
  • Shift shaft binding or leakage diagnosis
  • Gear housing rebuild on V6 / V8 FourStroke lower unit
  • Service manual calls for tool 91-8M0142969

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 91-8M0142969 current OEM shift shaft tool reference

OEM / Related Numbers

  • 91-8M0142969
  • 8M0142969
  • Mercury 91-8M0142969
  • Quicksilver 91-8M0142969
  • Shift shaft tool
  • Gearcase shift shaft service tool
  • 23-8M0142859 related Design 1 shift shaft bushing
  • 25-8M0142860 related shift shaft bushing O-ring
  • 11-8M0142743 related M10 nut family reference

Aftermarket / Verified Equivalents

  • No aftermarket equivalent

📦 Condition

  • Genuine Quicksilver service tool
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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