Shim Kit, Forward Bearing – Fits Yamaha Outboards (Replaces 61A-45567-00-00 through 61A-45567-60-00)
Shim Kit, Forward Bearing – Fits Yamaha Outboards (Replaces 61A-45567-00-00 through 61A-45567-60-00) 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
Shim Kit, Forward Bearing – Fits Yamaha Outboards (Replaces 61A-455...
Product Details
This Shim Kit, Forward Bearing – Fits Yamaha Outboards provides the necessary components for correctly setting forward gear bearing preload in the lower unit (gearcase). It is designed for a wide variety of Yamaha outboard motors, including 4-stroke applications from 115 HP to 300 HP, covering models from the early 2000s through current production.
The kit serves as a direct interchange for Yamaha part numbers 61A-45567-00-00 through 61A-45567-60-00 and aftermarket equivalents like SEI Marine 98-421-05K.
- Installation Location: Lower Unit / Gearcase
- Precise Fitment: Includes a comprehensive set of shims with varying thicknesses for accurate bearing alignment.
- Complete Solution: Provides multiple shims of each size to accommodate various gearcase service needs.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 61A-45567-00-00 | Thickness: 0.10mm |
| Yamaha | 61A-45567-10-00 | Thickness: 0.12mm |
| Yamaha | 61A-45567-20-00 | Thickness: 0.15mm |
| Yamaha | 61A-45567-30-00 | Thickness: 0.18mm |
| Yamaha | 61A-45567-40-00 | Thickness: 0.30mm |
| Yamaha | 61A-45567-50-00 | Thickness: 0.40mm |
| Yamaha | 61A-45567-60-00 | Thickness: 0.50mm |
| SEI Marine | 98-421-05K | Complete Shim Kit |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F115 | 115 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F150 | 150 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F175 | 175 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F200 | 200 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F225 | 225 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F250 | 250 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | F300 | 300 | 4-Stroke | 61A-45567-xx-00 | xx indicates thickness variation | |
| Yamaha | LZ300 | 300 | 4-Stroke | 61A-45567-xx-00 | Used in LZ300TUR (2006) models |
Technical Specs
- Product Type
- Forward Bearing Shim Kit
- Installation
- Lower Unit / Gearcase
- Dimensions
- 14.0"L x 12.0"W x 0.3"H
- Other Technical Attributes
- Complete kit includes shims of varying thicknesses (0.10mm, 0.12mm, 0.15mm, 0.18mm, 0.30mm, 0.40mm, 0.50mm)
What’s in the Box
- 7 x Shim (T:0.10MM) (Replaces 61A-45567-00-00)
- 7 x Shim (T:0.12MM) (Replaces 61A-45567-10-00)
- 7 x Shim (T:0.15MM) (Replaces 61A-45567-20-00)
- 7 x Shim (T:0.18MM) (Replaces 61A-45567-30-00)
- 7 x Shim (T:0.30MM) (Replaces 61A-45567-40-00)
- 7 x Shim (T:0.40MM) (Replaces 61A-45567-50-00)
- 7 x Shim (T:0.50MM) (Replaces 61A-45567-60-00)
Installation Notes
Installation requires disassembly of the lower gearcase. Proper shimming is critical for gear longevity and performance, as it sets the correct preload on the forward gear bearing. This process involves precise measurement using specialized tools, such as a dial indicator and bearing press, to select the correct shim thickness from the kit. Due to the technical precision required, we strongly recommend this service be performed by a qualified marine mechanic.
Troubleshooting & FAQ
How do I know which shim thickness to use?
The correct thickness is determined by measuring the gear backlash and bearing preload with a dial indicator during assembly, as specified in your engine's service manual. There is no single "correct" shim; it depends on the specific tolerances of your gearcase housing and bearings.
What are the signs of incorrect forward bearing shimming?
Symptoms of incorrect shimming include a whining or howling noise from the gearcase that changes with speed, excessive heat in the lower unit, or premature failure of the gears and bearings. This is why professional installation is critical.
Can I stack multiple shims to achieve the right thickness?
While it's technically possible, using a single, correct shim is always the preferred method for a stable and reliable assembly. Stacking can introduce potential for movement or uneven pressure. This kit includes multiple thicknesses to help you find the single best fit.
Is this kit for the forward or reverse gear bearing?
This kit is specifically for setting the preload on the **forward** gear bearing in the lower unit.
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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