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MerCruiser 3.0/V6/V8 Alternator, Ref 78403A2 | Recmar REC78403A2

REC78403A2

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Product Specifications and Features

This Recmar alternator is a high-quality aftermarket replacement for MerCruiser sterndrive/inboard applications using the OEM-style alternator referenced as 78403A2. It is designed for 12V charging systems and is specified by Recmar at 63A, with a single (V-belt) pulley and a self-exciting (internal) regulator.

Before ordering: fitment can vary by engine/serial number and existing alternator type. Always match your engine details and the part number stamped on the alternator currently fitted.

Part type: Alternator
Intended engine fitment: MerCruiser 3.0, V6 & V8 (V-belt/single pulley applications)
Electrical rating: 12V, 63A (Recmar spec)
Pulley: Single groove (V-belt)
Regulator: Self-exciting / internal regulator (Recmar spec)
Aftermarket reference: Recmar REC78403A2

OEM / cross-reference numbers (verify before purchase):
MerCruiser/Quicksilver: 78403A2, 78403A1, 78403, 78402, 817119A4, 817119A1, 817119R01, 92497A3, 98555A1, 8M0033842, 8M6007458, 12449A1, 90794, 881247, 889956.
OMC: 3860769, 988247.

Fitment varies by engine version. Confirm compatibility by engine model/serial number and alternator reference numbers before ordering.

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.

MerCruiser 3.0/V6/V8 Alternator, Ref 78403A2 | Recmar REC78403A2

£143.64 GBP

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