PRODUCT DETAILS
Genuine Yamaha 6–8 HP Outboard Gearbox Lower Casing Cap – 6G1-45361-01-8D
Genuine Yamaha OEM replacement lower casing cap for selected Yamaha 6 HP and 8 HP 2-stroke and 4-stroke outboard engines.
Yamaha Genuine Part Number: 6G1-45361-01-8D
This component fits the lower gearbox casing around the propeller shaft and bearing carrier area. It is used when repairing or rebuilding the compatible outboard lower unit.
Yamaha Outboard Fitment – UK & European Models
| HP | Engine Models | Engine Type |
|---|---|---|
| 6 HP | 6C, 6D | 2-Stroke |
| 8 HP | 8C, 8D | 2-Stroke |
| 6 HP | F6A, F6B | 4-Stroke |
| 8 HP | F8C | 4-Stroke |
| 6 HP | Selected F6D | 4-Stroke |
Important: Compatibility depends on the gearbox design and engine serial number. Not every Yamaha 6 HP or 8 HP outboard uses this lower casing cap.
Genuine Yamaha Part Number
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6G1-45361-01-8D
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6G1-45361-01-4D
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6G1-45361-01-EK
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6N0-G5361-00-4D
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60R-G5361-00-4D
These are listed as alternative or replacement references for the same lower casing cap family.
Product Details
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Brand: Yamaha
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Quality: Genuine Yamaha OEM
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Condition: Brand New
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Product: Lower Gearcase Casing Cap
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Location: Gearbox / Lower Unit / Propeller Shaft Housing
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Application: Selected Yamaha 6–8 HP outboards
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Main Part Number: 6G1-45361-01-8D
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Quantity: 1 × Lower Casing Cap
Important – What Is Included?
This listing is for the individual lower casing cap only.
It is not a complete gearbox, propeller shaft bearing carrier assembly or gearbox seal kit.
Bearings, oil seals, O-rings and other gearbox components are not included unless specifically shown in the product photographs.
Please compare your original component with the product photographs before ordering.
Important – Check Compatibility
Please confirm your Yamaha engine model, serial number and original gearbox part number before ordering.
Different gearbox assemblies may be fitted to engines with the same horsepower, particularly between 2-stroke and 4-stroke models.
If the part looks the same, it is not always the right one.
If unsure, contact SSI Marine with your engine model and serial number before purchasing.
Why Buy From SSI Marine?
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Official Tohatsu Outboards Dealer
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Over 10,000 genuine and aftermarket outboard parts stocked in the UK
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Experienced marine engineers offering technical support
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Same-day dispatch for orders placed before 1 PM Monday–Friday
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Royal Mail Tracked 24 UK delivery
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Collection available from Leigh, Greater Manchester
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Celebrating 10 years supplying the UK marine market
Buyer Responsibility: Please confirm your engine model, serial number and gearbox compatibility before purchasing.
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £7: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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