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Alternator for Volvo Penta Marine 12V 70A MD2010 MD2020 MD2030 MD2040 873770

Alternator for Volvo Penta Marine 12V 70A MD2010 MD2020 MD2030 MD2040 873770

SKU:400-29040

Regular price £204.00 GBP
Regular price £244.80 GBP Sale price £204.00 GBP
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Volvo Penta Marine Alternator 12V 70A

Replaces Part Numbers: 873770 / 872235 / 3803260

Restore your vessel's electrical charging system with this premium 12-volt, 70-amp alternator. Specifically engineered for Volvo Penta marine environments, this unit is a direct-fit replacement for the standard 50A and 60A units, providing superior charging stability for on-board electronics and battery banks. Manufactured using high-temperature-resistant components, it ensures reliable performance in confined engine compartments.

RELIABILITY: Fully marine-sealed components to resist corrosion and meet or exceed OE specifications.

Key Features

  • 70 Amp Output: Reliable power for heavy marine loads.
  • Direct Bolt-On: Precision mounting for easy installation.
  • Internal Regulator: Ensures consistent 14.4V charging.
  • Corrosion Resistant: Marine-grade coating for durability.

Technical Specs

Voltage 12V
Amperage 70A
Pulley Type Single V-Belt
Rotation Clockwise (CW)
Regulator Internal (IR)

Compatibility / Fitment Guide

Engine Series Models Notes
MD20XX Series MD2010, MD2020, MD2030, MD2040 All A, B, C, D variants
2000 Series 2001, 2002, 2003, 2003T Common on Saildrives
Diesel AD/TAMD AD31, AD41, TAMD31, TAMD41 12V Marine Systems
KAD Series KAD32, KAD42, KAD43, KAD44, KAMD300 Check pulley alignment
Petrol AQ AQ115, AQ120, AQ125, AQ130, AQ131, AQ140, AQ145, AQ151, AQ171 Fits most 4-cyl petrol

OEM Cross Reference

Volvo Penta: 873770, 872235, 872018, 872926, 858838, 858839, 834625, 841378, 841762, 841765, 841766, 3803260-3, 3803260
Valeo / Paris Rhone: A13N1M, A13N147M, A13N148M, A13N2M
Other References: LRA00367, 11.203.416, IA1202, 12411N

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured by 4Drive to meet or exceed original equipment (OE) standards for fitment and marine performance.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these (e.g., 873770 or 872235), it is a guaranteed fit.

Will this fit if my original was only 50 Amps?

Yes, this 70 Amp unit is a common upgrade for older 50A or 60A Volvo Penta alternators. The mounting points remain the same, but the increased output allows for faster battery charging and better support for modern navigation equipment.

Note: Please verify your original part number against the references above before purchasing. For support, visit 4drive.co.uk.

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Shipping calculated at checkout. Free shipping over £150. Terms apply