Description
Mercury 8M0057742 Needle Bearing 65-150HP FourStroke
The Mercury 8M0057742 Needle Bearing is a genuine replacement bearing used in select Mercury and Mariner FourStroke gear housing and propeller shaft assemblies. Also referenced as 31-8M0057742, this bearing is used in compatible forward gear and propeller shaft gearcase applications where Mercury part number 8M0057742 is specified.
Key Features
- Genuine Mercury needle bearing replacement
- Part number: 8M0057742
- Mercury part reference: 31-8M0057742
- Used in select gear housing / propeller shaft assemblies
- Fits select Mercury and Mariner FourStroke outboard applications
- Used with compatible forward gear / pinion gear set assemblies
- Fits select 2.07:1 and 2.38:1 gear housing applications where specified
- Direct replacement for applications requiring Mercury 8M0057742
- Ideal for lower unit, gear housing, and propeller shaft service
Fitment / Product Details
- Brand: Mercury
- Part Number: 8M0057742
- Mercury Part Reference: 31-8M0057742
- Product Type: Needle bearing
- Application: Select Mercury and Mariner outboard gear housing / propeller shaft applications
- Engine Types: 4-stroke EFI, 4-stroke Jet, 4-stroke SeaPro, 4-stroke Pro XS, and FourStroke applications where specified
- HP Range: Select 65 Jet through 150HP applications
- Assembly Location: Gear housing / propeller shaft / forward gear bearing area
- Schematic Object Key: 3 in applicable gear housing propeller shaft diagrams
- Gear Housing Applications: Select 2.07:1 and 2.38:1 standard rotation and counter rotation applications where specified
- UPC: 745061895201
- Quantity Used: 1 per applicable assembly
- Fitment Note: Match part number 8M0057742 or 31-8M0057742 to your engine model, serial number, gear housing ratio, rotation, and parts diagram before ordering.
Expanded Fitment
- 65 Jet 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 75 EFI 4-Stroke: Serial range 2B095049 & Up, 2.07:1 and 2.38:1 gear housing / propeller shaft applications where specified
- 75 EFI SeaPro 4-Stroke: Serial range 2B095049 & Up, 2.07:1 and 2.38:1 gear housing / propeller shaft applications where specified
- 80 EFI 4-Stroke: Serial range 2B095049 & Up, 2.07:1 and 2.38:1 gear housing / propeller shaft applications where specified
- 80 Jet 4-Stroke: Serial range 2B095049 & Up, 2.07:1 and 2.38:1 gear housing / propeller shaft applications where specified
- 90 EFI 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 90 EFI SeaPro 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 100 EFI 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 115 EFI 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 115 EFI SeaPro 4-Stroke: Serial range 2B095049 & Up, gear housing / propeller shaft applications where specified
- 115 Pro XS 4-Stroke: Serial range 2B225488 & Up, gear housing / propeller shaft applications where specified
- 135 EFI FourStroke: Serial range 2B131942 & Up, gear housing / propeller shaft applications where specified
- 150 EFI FourStroke: Serial range 1B905505 & Up, gear housing / propeller shaft applications where specified
- 150 SeaPro FourStroke: Serial range 2B139139 & Up, gear housing / propeller shaft applications where specified
Why You Should Buy
- Correct Mercury needle bearing for applications requiring part number 8M0057742
- Designed for compatible gear housing and propeller shaft service
- Useful during lower unit repair, forward gear service, and gearcase rebuilds
- Fits select Mercury and Mariner 65 Jet through 150HP FourStroke applications
- Helps ensure accurate replacement when matched by model, serial number, gear ratio, and parts diagram
Common Applications
- Mercury 65 Jet FourStroke gear housing service
- Mercury 75HP to 115HP EFI FourStroke propeller shaft service
- Mercury SeaPro 75HP, 90HP, 115HP, and 150HP gear housing applications
- Mercury 115 Pro XS FourStroke lower unit service
- Mercury 135HP and 150HP FourStroke gearcase service
- Mariner FourStroke gear housing applications requiring 8M0057742
- Forward gear, pinion gear, and propeller shaft bearing replacement
FAQ
- What is Mercury 8M0057742? Mercury 8M0057742 is a needle bearing used in compatible gear housing / propeller shaft assemblies.
- What is the Mercury part reference? This bearing is also referenced as 31-8M0057742.
- What horsepower range does it fit? This bearing fits select 65 Jet through 150HP Mercury and Mariner FourStroke applications where 8M0057742 is specified.
- What engine types does it fit? This part fits select 4-stroke EFI, Jet, SeaPro, Pro XS, and FourStroke applications where specified.
- Where is this bearing used? It is used in the gear housing / propeller shaft / forward gear bearing area on compatible outboards.
- Does this fit 80 EFI FourStroke? Yes. It is used on select 80 EFI FourStroke applications with serial range 2B095049 & Up where specified.
- Does this fit 115 Pro XS FourStroke? Yes. It is used on select 115 Pro XS FourStroke applications with serial range 2B225488 & Up where specified.
- Does this fit 150 FourStroke models? Yes. It is used on select 150 EFI FourStroke applications with serial range 1B905505 & Up and 150 SeaPro FourStroke applications with serial range 2B139139 & Up where specified.
- What is the UPC? The UPC is 745061895201.
- How should I confirm fitment? Match part number 8M0057742 or 31-8M0057742 to your engine model, serial number, gear housing ratio, rotation, and parts diagram before ordering.