PRODUCT DETAILS
8 HP 9.9 HP 25-50 HP Yamaha Outboard Starter Motor 6F5-81800-11 6J4-81800
Product Description
Yamaha Outboard Starter Motor – F8 F9.9 4-Stroke & 25–50 HP 2-Stroke
Premium-quality aftermarket starter motor for selected Yamaha 2-cylinder and 3-cylinder outboard engines.
Suitable for selected F8 and F9.9 4-stroke models from 2001–2018, plus selected 25 HP to 50 HP 2-stroke Yamaha outboards from 1987–2010.
Fits Selected Yamaha Outboards
4-Stroke
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F8 – 8 HP
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F9.9 – 9.9 HP
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Selected models 2001–2018
2-Stroke
Selected Yamaha 2-stroke applications from approximately 1987–2010, including:
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25 HP
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30 HP
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40 HP
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50 HP
Engine Configuration
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Selected 2-cylinder / 3-cylinder applications
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11-Tooth Starter Drive
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CCW Rotation
Replaces Yamaha Part Numbers
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6F5-81800-10-00
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6F5-81800-11-00
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6J4-81800-00-00
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6J4-81800-01-00
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68T-81800-00-00
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6G8-81800-11-00
Main Part Number Families
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6F5-81800
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6J4-81800
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68T-81800
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6G8-81800
Hitachi Cross References
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S108-87A
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S108-123
Additional Cross References
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Sierra: 18-6410
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Arco: 3423
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API Marine: MOT5014N
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Arrowhead: SHI0131
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J & N: 410-44085
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WAI: 18346N
OEM and manufacturer part numbers are used for identification and compatibility reference only.
Starter Motor Specifications
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Starter Drive: 11 Tooth
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Rotation: CCW
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Selected 2-cylinder / 3-cylinder applications
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Suitable for selected 2-stroke & 4-stroke engines
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High-quality marine-grade aftermarket replacement
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New starter motor
Important – Please Check Compatibility
This starter motor fits several different Yamaha engine families.
It is therefore particularly important not to order by horsepower or appearance alone.
Yamaha used different starter motors across the same horsepower ranges depending on engine model, generation and production code.
Before purchasing, please check:
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Exact Yamaha engine model
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2-stroke or 4-stroke
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Engine year
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Engine serial number / model code
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Original starter motor part number
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11-tooth starter drive
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Mounting points and electrical connections
Your original starter should correspond with one of the Yamaha part number families listed above.
If the starter motor looks the same as yours, this does not always mean it is the correct one for your outboard.
If you are unsure, please send SSI Marine your engine model and serial number before ordering and our technical team will be happy to check compatibility.
Why Buy From SSI Marine?
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Workshop-tested aftermarket & OEM-spec marine parts
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More than 10 years supplying and servicing outboards
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UK stock
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Same working day dispatch before 1 PM Monday–Friday
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Royal Mail Tracked 24
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Collection available from Leigh, Greater Manchester
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Technical support from experienced outboard specialists
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: 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.









