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Alternator for Mercury Marine 12V - Replaces 19020704

Alternator for Mercury Marine 12V - Replaces 19020704

SKU:400-52346

Regular price £262.80 GBP
Regular price £315.36 GBP Sale price £262.80 GBP
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Free shipping over £150. Terms apply

Alternator for Mercury Marine

Cross-references: Arrowhead (old | Arrowhead | Delco | EMP | JANNCO | Lester

Alternator for Mercury Marine - a new aftermarket alternator in 12V specification, supplied ready to fit as a replacement for 19020704.

A failing alternator shows up as a battery that will not hold charge, dim or flickering lights at idle, and a warning lamp that glows under load.

Key Features

  • 100% new aftermarket unit - not a remanufactured core
  • Direct-fit replacement, no modification required on listed applications
  • Specification: 12V
  • Cross-referenced to Arrowhead (old, Arrowhead, Delco, EMP part numbers
  • Built to meet or exceed the original equipment specification
  • Dispatched from the UK with technical fitment support

Technical Specs

Specification Detail
SKU / Part Code 400-52346
Component Alternator
Voltage 12 Volts
Condition New aftermarket
Warranty 12 months

OEM Part Number Cross Reference

Aftermarket replacement. OEM part numbers are listed for reference only and remain the property of their respective manufacturers.

Part Number Manufacturer / Brand
ADR0318 Arrowhead (old
400-12155 Arrowhead
19020704 Delco
19020707 Delco
Apr-55 EMP
400-12155R JANNCO
8471 Lester
875286A1 Mercury Marine
881247A1 Mercury Marine
889956 Mercury Marine
875286T Mercury Marine
240-6318 Pic Picture ID
18-6455 Sierra Marine

Frequently Asked Questions

How do I check this alternator fits?

Compare the part number on your existing unit against the cross-reference table above, and check the output rating and pulley type. Send us your vehicle or engine details if you are unsure.

Is this new or remanufactured?

It is 100% new, not a rebuilt core - no core charge and no worn slip rings or bearings.

Is the pulley included?

Unless stated otherwise the unit is supplied without a pulley - transfer the one from your original alternator.

My battery keeps going flat - is the alternator to blame?

Measure voltage at the battery with the engine running: roughly 13.8-14.4V means it is charging. Below that, with a good belt and clean connections, the alternator or its regulator is the likely cause.

Dispatched from the UK · 12-month warranty · Fitment support from our technical team
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Shipping calculated at checkout. Free shipping over £150. Terms apply