PRODUCT DETAILS
STD Piston Kit for Mariner 4 HP 6E0 Outboards
Premium-quality aftermarket standard-size piston kit for selected Mariner 4 HP 2-stroke outboards manufactured by Yamaha.
Suitable specifically for the Japanese Yamaha-manufactured Mariner engines identified by the 6E0 model/serial prefix.
The 761-8256M piston is cross-referenced to Yamaha standard piston 6E0-11631-00-98K.
Kit Contains
- 1 x STD Piston
- Piston Rings
- Piston Pin
- Circlips / Clips
STD = Standard Size
Fits Mariner Outboards
4 HP – 2 Stroke
Fits Yamaha-manufactured Japanese Mariner models including:
- 4A
- 4AS
- 4AC
- 4ACMH
- 6E0 models
VERY IMPORTANT
ONLY FOR YAMAHA-MANUFACTURED MARINER ENGINES WITH 6E0 IDENTIFICATION.
The 6E0 application is important because not every Mariner/Mercury 4 HP engine uses this piston. Parts catalogues specifically identify 761-8256M with the Mariner 4A 6E0 family.
Replaces Mariner Part Number
- 761-8256M
- 8256M
Yamaha Cross Reference
- 6E0-11631-00-98K
- 6E0-11631-00-98
- 6E0116310098
The corresponding standard piston-ring reference for this application is 39-11462M / Yamaha 6G1-11610-00.
OEM part numbers are used for identification and reference only.
⚠️ WILL NOT FIT
This piston kit WILL NOT fit Mercury-manufactured Mercury / Mariner 4 HP engines.
Do not order simply because your engine is a Mariner 4 HP.
Your engine must be the Yamaha-manufactured Japanese 6E0 version.
Product Features
- Complete piston kit
- STD / Standard size
- For selected Mariner 4 HP outboards
- 2-stroke application
- Yamaha-manufactured Mariner engines
- For 6E0 models
- Includes piston
- Includes piston rings
- Includes piston pin
- Includes circlips
- Premium-quality aftermarket replacement
- New in box
Important – Check Before Ordering
There are different versions of Mariner 4 HP outboards.
Before purchasing, please check:
- Engine is Yamaha-manufactured
- 6E0 identification
- Engine model
- Existing piston size
- Original piston part number
- Piston is STD size, not oversize
Please Note
If you have a Mercury-manufactured Mariner/Mercury engine, this is NOT the correct piston kit.
If you are unsure, please send us a photograph of your engine identification/serial-number plate before ordering.
Why Buy From SSI Marine?
- Premium aftermarket & OEM-spec marine parts
- Workshop-tested products
- More than 10 years supplying outboard parts
- UK stock
- Same working day dispatch before 1 PM Monday–Friday
- Royal Mail Tracked 24
- Technical support from experienced outboard specialists
- Collection available from Leigh, Greater Manchester
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.
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