• Image of a starter motor on a white background.
  • Image of a starter motor on a white background.
  • Image of a starter motor on a white background.

| Recmar

MerCruiser/Cummins Diesel Starter Motor 12V 10T, Ref 3916854 / 805991 / 3904445 | Recmar REC3916854

REC3916854

  • Free Shipping ✅

🚚 Dispatched in 1-3 Days

⏱️ 14 Day Return Policy

In stock
$300.00 CAD
$300.00 CAD $0.00 CAD
Shipping calculated at checkout.
By placing your order you agree to purchase from Global-e as the merchant of record, subject to Global-e’s Terms and Conditions and Privacy Policy, and share your information with TMP Global.
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • Diners Club
  • Discover
  • EPS
  • Google Pay
  • JCB
  • Klarna
  • Maestro
  • Mastercard
  • Multibanco
  • MobilePay
  • PayPal
  • Przelewy24
  • Shop Pay
  • Twint
  • Union Pay
  • Visa
Shop safely with us

We ship with

EVRI DHL Royal Mail
💬 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 starter motor is a Recmar aftermarket replacement for MerCruiser/Cummins diesel applications using OEM starter references 3916854 and 3904445 (also listed in some MerCruiser catalogs as 805991 / 50-805991). Designed with a 10-tooth pinion for correct ring gear engagement, it’s intended to restore reliable starting performance when the correct match is confirmed.

Before ordering: confirm the part number on your existing starter and verify fitment by engine model, rotation and tooth count. Fitment can vary by engine version and installation.

  • Part: Starter Motor
  • Voltage: 12V
  • Pinion teeth: 10T
  • Rotation: Clockwise (CW) (as listed by common marine catalogs)
  • Primary OEM cross-references: Cummins 3916854, 3904445; MerCruiser 805991 / 50-805991
  • Typical applications (confirm by engine & existing part number): Cummins B-Series marine diesels including 3.9L (4B/4BT) and 5.9L (6B/6BT/6BTA), plus select MerCruiser diesel packages using these engines
  • Aftermarket brand: Recmar (Recambios Marinos)
  • SKU: REC3916854

Note: Some catalogs also reference equivalent numbers such as Delco Remy 1113276 / 1113593. Always match by the OEM number on your starter (and your engine serial/model) to ensure correct compatibility.

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.
MerCruiser/Cummins Diesel Starter Motor 12V 10T, Ref 3916854 / 805991 / 3904445 | Recmar REC3916854

$300.00 CAD

  • 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.