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Alternator Marine Inboard Sterndrive Mercruiser OMC Volvo 12V 55A Mando 817119

Alternator Marine Inboard Sterndrive Mercruiser OMC Volvo 12V 55A Mando 817119

SKU:400-46022

Regular price £199.00 GBP
Regular price £261.00 GBP Sale price £199.00 GBP
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Marine Inboard Alternator

Fits Mercruiser, OMC, Volvo & PCM (55 Amp)

Keep your vessel powered up with this high-quality **Marine Grade Alternator**. Designed to replace the common **Mando and Motorola style** alternators found on a wide variety of inboard and sterndrive engines, this unit is a direct fit for many **Mercruiser, OMC, Volvo Penta, and Pleasurecraft Marine (PCM)** applications.

This 55 Amp unit is built to withstand the harsh marine environment. It features an **Ignition Protected** design (SAE J1171) safe for use in gasoline engine compartments, and comes complete with a single groove pulley for easy installation.

UNIVERSAL FIT: Replaces many 37A, 51A, and 55A Mando and Motorola units used on GM-based marine engines.

Key Features

  • Marine Grade: Ignition protected for safety.
  • Direct Replacement: Fits Mando mount patterns.
  • 55 Amp Output: Reliable charging power.
  • Pulley Included: V1 Single Groove.

Technical Specs

Voltage: 12 Volts
Amperage: 55 Amps
Regulator: Internal (IR)
Fan Type: External (EF)
Pulley: 1-Groove V-Belt
SKU Reference: 400-46022

Vehicle Fitment Guide

Brand Application Replaces Type
Mercruiser Inboard & Sterndrive Mando / Motorola
Volvo Penta Marine Gas Engines Mando / Motorola
OMC Cobra & King Cobra Mando / Motorola
Pleasurecraft (PCM) Inboard Engines RA097006
Industrial Clark, Cushman Various

OEM Part Number Cross Reference

Mando AC155603, AC155604, AR150AA, M56750
Mercury Marine 817119, 817119-2, 98555, 12449, 19685
Motorola 8MR2039K, 8MR2036K, 10-256
OMC 3860769, 988247
Sierra 18-5957, 18-5951

Frequently Asked Questions

Is this alternator ignition protected?

Yes, this alternator is SAE J1171 Ignition Protected, making it safe for use in gasoline marine engine compartments.

Will it replace my 37 Amp alternator?

Yes, this 55 Amp unit is a compatible upgrade for older 37 Amp and 51 Amp Motorola/Mando units often found on older marine engines.

Does it use an external regulator?

No, this model has an **Internal Regulator (IR)**. It simplifies wiring compared to older external regulator systems.

Note: Please verify your existing alternator mounting style (spool/foot) before purchasing.
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Shipping calculated at checkout. Free shipping over £150. Terms apply