Skip to product information

| Recmar

Mercury 75-115HP EFI Alternator 12V 50A, Ref 8M0063970 | Recmar REC8M0063970

REC8M0063970


  • Free Shipping ✅

🚚 Dispatched in 1-3 Days

⏱️ 14 Day Return Policy

In stock

Our stock levels are updated in real time, though occasional delays may occur. If inventory appears limited and you need confirmation before ordering, our customer service team is available via live chat to verify current availability. Look for the orange chat icon in the bottom right corner of your screen.


Regular price £171.75 GBP
Sale price £171.75 GBP Regular price
Tax included. Shipping calculated at checkout.
Payment methods
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
Shop safely with us

💬 Ask a question about this product

By signing up you agree to receive marketing emails and text messages. View our privacy policy and terms of service for more info.


Product Specifications and Features


This 12V 50A alternator is a Recmar replacement designed for select Mercury/Mariner 75–115HP EFI FourStroke outboards. It cross-references Mercury OEM part number 8M0063970 (also shown as 50-897755T / 897755T) and is intended to restore correct battery charging performance when the correct match is confirmed.

Before ordering: verify your engine model/serial number and the part number on the alternator currently fitted. Fitment can vary by engine version.

  • Part type: Alternator
  • Power output: 12V, 50A
  • Pulley: 4-groove (serpentine)
  • Typical applications: Mercury/Mariner 75HP EFI, 80HP EFI, 90HP EFI, 100HP EFI, 115HP EFI (FourStroke)
  • OEM cross-references: Mercury 8M0063970, 50-8M0063970, 50-897755T, 897755T (superseded by Mercury 8M6013463)
  • Aftermarket reference: Recmar REC8M0063970
  • Notes: Commonly listed as a rubber-mounted alternator that requires a ground strap—confirm your installation hardware and wiring.

Fitment varies by year and serial range—always match by OEM number and engine details before purchase.

Shipping Information

All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.

Out of stock items can be back-ordered with a typical 3–4 week lead time.

If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.

All times are in UK BST.

Notice: Due to ongoing conflicts impacting logistics, some deliveries or re-stocking may take a little longer than expected. We're working to get your order to you as quickly as possible.

Mercury 75-115HP EFI Alternator 12V 50A, Ref 8M0063970 | Recmar REC8M0063970

£171.75 GBP

  • Largest parts catalogue in the UK

    Explore over 50,000 marine parts, all in one place.

  • Secure and safe shopping

    Your personal data is protected with SSL encryption.

  • Best prices on the internet

    We compare prices daily to ensure you get the best deal.

  • Satisfaction Guarantee

    We stand behind every product with a full satisfaction guarantee.