PRODUCT DETAILS
Mercury / Mariner 35–60 HP Outboard Fuel Pump Check Valve Repair Kit – 2-Stroke
Quality aftermarket fuel pump check valve repair kit for selected Mercury and Mariner 35 HP, 50 HP and 60 HP 2-stroke outboard engines, replacing Mercury OEM part number 21-13424A1.
Designed to repair compatible mechanical fuel pump assemblies by replacing worn or damaged check valve components, helping maintain correct one-way fuel flow and reliable fuel delivery.
Mercury / Mariner Outboard Fitment
| HP | Engine Application |
|---|---|
| 35 HP | Selected 2-cylinder Mercury / Mariner 2-stroke engines, including 1984–1989 applications |
| 50 HP | Selected 3-cylinder Mercury / Mariner 2-stroke engines |
| 60 HP | Selected 3-cylinder Mercury / Mariner 2-stroke engines |
Engine Type: 2-Stroke
Important: Not every 35, 50 or 60 HP engine uses this kit. Fuel pump designs vary according to engine year, serial number and cylinder configuration.
Mercury / Mariner OEM Replacement Part Numbers
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21-13424A1
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13424A1
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8M0084275 – Later replacement reference
Aftermarket Cross-References
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Recmar: REC21-13424A1
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GLM: 40170
Product Details
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Condition: New
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Quality: Marine-grade aftermarket
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Product: Fuel Pump Check Valve Repair Kit
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Engine Type: 2-Stroke
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Application: Selected Mercury / Mariner 35–60 HP outboards
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Main OEM Reference: 21-13424A1
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Quantity: 1 × Check Valve Repair Kit
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Stock: UK stock, ready for dispatch
Kit Contents
A fuel pump check valve repair kit containing replacement valve and associated sealing components for the compatible fuel pump assembly.
Please refer to the product photographs for the exact components supplied. Contents may vary between aftermarket manufacturers.
This listing is for the check valve repair kit, not a complete fuel pump assembly.
OEM part numbers are used for identification purposes only.
Important – Check Compatibility
Please confirm your Mercury / Mariner engine model, serial number and original fuel pump part number before ordering.
Different fuel pump check valve kits were fitted across Mercury / Mariner engines, even within the same horsepower range.
If the parts look the same as yours, this does not always mean they are correct for your outboard.
If unsure, contact SSI Marine with your engine details before purchasing.
Why Buy From SSI Marine?
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Workshop-tested genuine and aftermarket outboard parts
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Over 10,000 genuine and aftermarket marine parts stocked in the UK
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Same-day dispatch 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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Technical support from experienced marine engineers
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10 years supplying the UK marine market
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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