PRODUCT DETAILS
Fuel Pump Diaphragm & Gasket Repair Kit – Mercury / Mariner 4 HP, 5 HP, 6 HP, 8 HP & 9.8 HP 2-Stroke Outboards
Quality marine-grade aftermarket fuel pump diaphragm and gasket repair kit for selected Tohatsu-built Mercury and Mariner 2-stroke outboard engines.
This 4-piece kit contains two fuel pump diaphragms and two gaskets, designed to replace worn components and help restore consistent fuel delivery and reliable engine operation.
Fitment – Mercury / Mariner Outboards
| HP | Engine Application | Engine Type |
|---|---|---|
| 4 HP | Selected Tohatsu-built models | 2-Stroke |
| 5 HP | Selected Tohatsu-built models | 2-Stroke |
| 6 HP | Selected Tohatsu-built models | 2-Stroke |
| 8 HP | Selected Tohatsu-built models | 2-Stroke |
| 9.8 HP | Selected Tohatsu-built models | 2-Stroke |
Corresponding Tohatsu Engine Models
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M4C – 4 HP
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M5B / M5BS – 5 HP
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M6B – 6 HP
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M8B – 8 HP
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M9.8B – 9.8 HP
Important: Mercury/Mariner applications are limited to engines using the corresponding Tohatsu-type fuel pump. The Tohatsu model list is provided to help identify the correct engine family.
Not suitable for Japanese-built Mariner 4A / 5C engines with 6E0 or 6E3 serial-number prefixes.
Not suitable for 4-stroke engines.
Kit Contents – 4 Pieces
| Qty | Tohatsu Part Number | Component |
|---|---|---|
| 1 | 369-03302-0 | Fuel Pump Cover Gasket |
| 1 | 369-03303-0 | Fuel Pump Diaphragm |
| 1 | 369-03306-0 | Fuel Pump Diaphragm |
| 1 | 369-03307-0 | Fuel Pump Gasket |
Total: 2 diaphragms + 2 gaskets.
Mercury / Mariner Replacement References
-
11499M
-
11499T
-
16325
-
27-16274
Tohatsu Replacement References
-
369-03302-0
-
369-03303-0
-
369-03306-0
-
369-03307-0
Yamaha Reference
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6G1-24411-00
-
6G1-24411-00-00
Please note: The above references identify individual components within the fuel pump assembly. They are not all interchangeable with one another.
OEM part numbers are supplied for identification purposes only.
Product Details
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Condition: New
-
Product: Fuel Pump Diaphragm & Gasket Repair Kit
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Quality: Marine-Grade Aftermarket
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Application: Selected Mercury / Mariner 2-Stroke Outboards
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Horsepower: 4 HP, 5 HP, 6 HP, 8 HP, 9.8 HP
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Kit Contents: 4 Pieces
-
Main Mercury References: 11499T / 27-16274
Please note: This is a fuel pump diaphragm and gasket repair kit, not a complete fuel pump assembly.
Important – Check Compatibility
Please confirm your Mercury or Mariner engine model, serial number and original fuel pump components before ordering.
If the part looks the same as yours, this does not always mean it is the correct part for your outboard.
If unsure, contact SSI Marine with your engine details and photographs of the original fuel pump.
Why Buy From SSI Marine?
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Workshop-tested genuine and aftermarket parts
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Over 10,000 genuine and aftermarket items stocked
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Same-day dispatch before 1 PM Monday–Friday
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Royal Mail Tracked 24
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UK stock – collection from Leigh, Greater Manchester
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Technical support from experienced marine engineers
Buyer Responsibility: Please confirm 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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