Description
Mercury 824108 Thrust Spacer 23-824108
The Mercury 824108 Thrust Spacer is a replacement gear housing spacer used in compatible Mercury outboard and MerCruiser sterndrive applications. Also referenced as 23-824108, this thrust spacer is commonly used with reverse gear and gear housing assemblies where this exact part number is specified.
Key Features
- Genuine Mercury thrust spacer replacement
- Part number: 824108
- Mercury part reference: 23-824108
- Product type: Thrust spacer
- Used in compatible reverse gear / gear housing applications
- Fits select Mercury outboard gearcase applications
- Fits select MerCruiser Alpha One Gen II sterndrive applications
- Direct replacement for applications requiring Mercury 824108 or 23-824108
Fitment / Product Details
- Brand: Mercury
- Part Number: 824108
- Mercury Part Reference: 23-824108
- Product Type: Thrust spacer
- Application: Select Mercury outboard and MerCruiser gear housing applications using a replaceable thrust spacer
- Engine Types: Select Mercury 2-stroke outboards, EFI outboards, carbureted outboards, Jet applications, Pro Max / Super Magnum applications, and MerCruiser Alpha One Gen II sterndrive applications where specified
- HP Range: Select 105 Jet through 300HP outboard applications, plus compatible Alpha One Gen II sterndrive applications
- Assembly Location: Reverse gear / gear housing thrust spacer location
- Drive Applications: MerCruiser Alpha One Gen II applications where 23-824108 is specified
- Fitment Note: Match part number 824108 or 23-824108 to your gear housing parts diagram, outboard model, sterndrive model, serial number, and service manual before ordering.
Expanded Fitment
- Mercury / Mariner 105 Jet 2-Stroke: Select applications where 23-824108 is specified
- Mercury / Mariner 140 Jet 2-Stroke: Select applications where 23-824108 is specified
- Mercury / Mariner 135HP 2.5L 2-Stroke: Select gear housing applications
- Mercury / Mariner 150HP 2.5L 2-Stroke: Select carbureted, XR6, and Magnum III gear housing applications
- Mercury / Mariner 175HP 2.5L 2-Stroke: Select gear housing applications
- Mercury / Mariner 200HP 2.5L 2-Stroke: Select carbureted, XR6 / Magnum III, and related gear housing applications
- Mercury 175HP Pro XS 2.5L: Select gear housing applications where 23-824108 is specified
- Mercury 300HP 3.0L EFI Pro Max / Super Magnum: Select gear housing applications where 23-824108 is specified
- MerCruiser Alpha One Gen II: 1998 and newer gear housing / reverse gear applications where 23-824108 is specified
Why You Should Buy
- Correct replacement thrust spacer for applications requiring Mercury 824108 or 23-824108
- Supports proper reverse gear and gear housing service
- Useful for lower unit repair, gearcase rebuilds, and reverse gear component replacement
- Fits select Mercury outboard and MerCruiser Alpha One Gen II applications
- Helps ensure accurate repair when matched by part number, model, serial number, and parts diagram
Common Applications
- Mercury outboard gear housing service
- Mercury / Mariner 2.5L 2-stroke lower unit repair
- Mercury Jet outboard gearcase service
- Mercury Pro Max / Super Magnum gearcase service
- MerCruiser Alpha One Gen II reverse gear service
- Applications requiring Mercury 824108 or 23-824108 thrust spacer
FAQ
- What is Mercury 824108? Mercury 824108 is a thrust spacer used in compatible Mercury outboard and MerCruiser gear housing applications.
- Is 23-824108 the same part reference? Yes. 23-824108 is the Mercury part reference for this thrust spacer.
- Where is this thrust spacer used? This spacer is used in compatible reverse gear / gear housing assemblies where part number 824108 is specified.
- What horsepower range does this fit? This part fits select 105 Jet through 300HP Mercury outboard applications, plus compatible MerCruiser Alpha One Gen II applications.
- What engine types does this fit? This spacer fits select Mercury 2-stroke, carbureted, EFI, Jet, Pro Max, and Super Magnum outboard applications where specified.
- Does this fit MerCruiser Alpha One Gen II? Yes. This thrust spacer is used in select Alpha One Gen II gear housing applications where part number 23-824108 is specified.
- Is this a propeller thrust washer? No. This is a gear housing thrust spacer, not a standard external propeller thrust washer.
- How should I confirm fitment? Match part number 824108 or 23-824108 to your original spacer, gear housing parts diagram, model, serial number, and service manual before ordering.

