Bushing Assembly – Fits Mercury/Mariner 40-60 HP Outboards (Replaces 23-813696A2)
Bushing Assembly – Fits Mercury/Mariner 40-60 HP Outboards (Replaces 23-813696A2) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Bushing Assembly – Fits Mercury/Mariner 40-60 HP Outboards (Replace...
Product Details
This Bushing Assembly – Fits Mercury/Mariner 40-60 HP Outboards (Replaces 23-813696A2) is designed for a precise fit on Mercury and Mariner applications, including 40-60 HP 2-Stroke (1975–2006) and 40-60 HP 4-Stroke EFI (1998–2006) outboard motors. It is installed in the shift shaft assembly located within the gearcase.
This part serves as a direct replacement for Mercury 23-813696A2, GLM 21022, and other aftermarket equivalents.
- Installs within the gearcase lower unit.
- Compatible with 1.64:1, 1.83:1, and 2:1 gear ratio applications.
- Package contains one complete bushing assembly.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 23-813696A2 |
| GLM | 21022 |
| Aftermarket | AM23-813696A2 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury/Mariner owners, please check your specific model, horsepower, and year range to ensure correct fitment. This part covers a wide variety of 2-stroke and 4-stroke models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 45 JET | 45 | 2-Stroke | 1975–2006 | 23-813696A2 | All serial ranges |
| Mercury | 50 | 50 | 2-Stroke | 1975–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | 55 | 55 | 2-Stroke | 1975–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | 60 | 60 | 2-Stroke | 1975–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | 60 BIGFOOT | 60 | 2-Stroke | 1996–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | 40 EFI | 40 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 50 EFI | 50 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 60 EFI | 60 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 40 Carb | 40 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 50 Carb | 50 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 60 Carb | 60 | 4-Stroke | 1998–2006 | 23-813696A2 | 4 cylinder models |
| Mercury | 40 EFI | 40 | 4-Stroke | 2001–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | 30 EFI | 30 | 4-Stroke | 2001–2006 | 23-813696A2 | 3 cylinder models |
| Mercury | Formula 60 | 60 | 4-Stroke | 2001–2006 | 23-813696A2 | Model 1C104574 & Up |
Technical Specs
- Product Type
- Shift Shaft Bushing Assembly
- Installation
- Gearcase / Lower Unit
- Dimensions
- 31.8 mm × 31.8 mm × 2.5 mm (1.25" × 1.25" × 0.1")
- Weight
- 0.021 kg (0.05 lb)
- Other Technical Attributes
- Used in 1.64:1, 1.83:1, and 2:1 gear ratio applications
What’s in the Box
- 1 x Bushing Assembly (23-813696A2)
Installation Notes
- Disconnect the battery and ensure the engine is stable and secure before beginning work.
- Drain the gearcase lubricant into a suitable container.
- Following the manufacturer's service manual, carefully disassemble the lower unit to access the shift shaft.
- Remove the old, worn bushing, taking care not to damage the housing. Note its orientation.
- Thoroughly clean the area of any old sealant, corrosion, or debris.
- Press the new bushing into place, confirming it is fully seated and properly aligned.
- Reassemble the shift shaft components and the lower unit, using new gaskets and seals as recommended by the service manual.
- Refill the gearcase with the correct grade and quantity of lubricant.
- Before starting the engine, manually test the shift linkage to ensure smooth engagement of forward, neutral, and reverse gears.
Troubleshooting & FAQ
How do I confirm this bushing fits my specific engine model?
The most reliable method is to cross-reference your engine's model, horsepower, and year with the "Engine & Model Compatibility" table above. You can also match the OEM part number 23-813696A2 from your engine's schematics to the numbers listed in our Part Number Matrix.
What are common signs of a failing shift shaft bushing?
Symptoms of a worn bushing include difficulty shifting into gear, a loose or sloppy feeling in the shift lever, grinding noises during shifting, or the engine jumping out of gear. A visual inspection during a lower unit service may also reveal visible wear, cracks, or deformation of the bushing.
Is any special tool required for installation?
While basic hand tools are required for gearcase disassembly, a bearing/bushing driver or a socket of the appropriate size is recommended to press the new bushing in evenly without damaging it. Always refer to your engine's service manual for specific tool recommendations.
How does this aftermarket part compare to the original OEM bushing?
This part is engineered to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It is made from comparable, high-quality materials to ensure reliable performance and longevity in the marine environment.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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