Genuine 200–250 HP Quicksilver Mercury Mariner Outboard Remote Oil Tank 11L with Sender 1257-8742A21 - NOS
PRODUCT DETAILS
GENUINE QUICKSILVER REMOTE OIL TANK ASSEMBLY – 1257-8742A21
NEW OLD STOCK – 76% DISCOUNT
Original Mercury Marine / Quicksilver 11-litre (3 US gallon) remote oil tank assembly with digital oil-level sender for compatible Mercury and Mariner 2-stroke outboard oil-injection systems.
This is a genuine OEM product, not an aftermarket replacement.
An excellent opportunity to purchase original Quicksilver equipment at a substantially reduced price.
Original RRP: £849.79 including VAT
SSI Marine Clearance Offer: Over 76% Off RRP
UK & European Mercury / Mariner Applications
Designed for compatible Mercury/Mariner 2-stroke outboard engines using a pressurised remote oil reservoir system and the appropriate digital sender connection.
Selected applications include:
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200 HP – OptiMax / DFI 2-stroke, selected 2.5L and 3.0L models
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225 HP – OptiMax / DFI 2-stroke, selected 2.5L and 3.0L models
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250 HP – OptiMax / DFI 2-stroke, selected 3.0L models
Other applications: The 11L remote tank may also be suitable for additional Mercury/Mariner 2-stroke engines equipped with a compatible pressurised remote oil system.
Important: The horsepower applications above identify engine families associated with this tank assembly. UK/European compatibility must be confirmed against the engine's specific oil-system configuration and serial number.
Part Numbers
Current Part Number
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1257-8742A21 – Genuine Quicksilver / Mercury Marine
Supersedes
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1257-8742A19
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1257-8742B19
Product Details
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Brand: Quicksilver / Mercury Marine
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Condition: New Old Stock (NOS)
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Part Number: 1257-8742A21
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Product: Remote Oil Tank Assembly
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Capacity: 11 Litres / 3 US Gallons
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Sender: Digital Oil-Level Sender
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Mounting: Floor-Mounted
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Application: Compatible Mercury / Mariner 2-Stroke Outboards
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Quality: Genuine OEM
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Quantity: 1 Assembly
New Old Stock – Clearance Offer
This is a genuine Quicksilver product from older, unused stock.
Original RRP: £708.16 + VAT (£849.79 including VAT)
Now available at over 76% off the original RRP.
Packaging may show signs of storage or age.
Please check the product photographs for the exact condition and components supplied.
Important – Check Compatibility
Please confirm the following before ordering:
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Mercury / Mariner engine model and serial number
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2-stroke oil-injection system
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Pressurised remote oil tank arrangement
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Digital sender compatibility
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Mounting and hose connections
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Original tank assembly part number
If the part looks the same as yours, this does not always mean it is the correct part for your outboard.
Why Buy From SSI Marine?
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Genuine Quicksilver / Mercury Marine parts
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Special clearance prices on original stock
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Same-day dispatch before 1 PM Monday–Friday
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UK stock – collection from Leigh, Greater Manchester
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Technical support available
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Delivery options shown at checkout
Buyer Responsibility: Please confirm compatibility before purchasing. Contact SSI Marine with your engine model and serial number if unsure.
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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