PW02-107

12V 70A Universal Marine Alternator fits Various Boats, Prestolite

12V 70A Universal Marine Alternator fits Various Boats, Prestolite

$84.99 USD
$84.99 USD $106.99 USD
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  • 30 Days Return
  • 2-3 Days Quick Shipping
  • 1 Year Hassle-Free Warranty
Up to 21% off

Product Specifications

Technical Specifications
Voltage 12 Volts
Current 70 Amps
Weight 11.2 Pounds
Rotation CW
Pulley Class V1
Dimension 9 x 8.5 x 8 inches

Shipping & Returns

  • Enjoy free US shipping on orders over $70 in rugged & heavy-duty packaging!
  • Not satisfied with your purchase? Contact us within 30 days. We're here to help!

Fitment Table

Fitment Details

Make Model Year Engine
MOTOROLA Various Models All Various Engines
OEM OEM Reference
PIC 270-501
BOWERS BAO3211
CARGO 110497
FAMILY AS123
HC PARTS CA1457IR
LUCAS 61920357
LUCAS LEA0270
LUCAS NAB900
PRESTOLITE 66021126
CARGO 110497
CARGO 112237
HELLA CA1457IR
HELLA CA1550IR
LUCAS 66921070
LUCAS 66921155
LUCAS NAB900
PIC 270-501
PRESTOLITE/LEECE NEVILLE 66021126
WAI 12750N

Testimonials

  • Well Made Marine Alternator

    My mechanic has been working on my classic powerboat with the V6 inboard engine. The alternator had seen better days and so I ordered this version – took a chance. Turns out, while they say it’s for a “Motorola,” it was just what I needed. It’s a pretty standard item, in fact – just needs to be able to bolt to the frame, and for the belt to fit the pulley, which it did.

    JOHN
    Verified Buyer

  • Marine-Grade and Reliable

    Installed this on my boat with a Motorola 270-501 setup. Charges steady even under heavy load. Solid marine-grade build—handles moisture and heat with no issues.

    Jake M
    Verified Buyer

  • Exact Match for My System

    Finding a replacement for BAO3211 wasn’t easy, but this alternator fit perfectly. Bolted right in, started charging immediately. No complaints at all.

    Chris D
    Verified Buyer

  • Built Tough for Marine Use

    Running this alternator on my marine engine for a few weeks now. Quiet, powerful, and handles electrical demand great. Better than expected for the price.

    Allen F
    Verified Buyer

  • Heavy-Duty and Dependable

    This 70A unit powers my GPS, lights, and radio without breaking a sweat. Works flawlessly in my older marine setup. Solid performance all around.

    Carla S
    Verified Buyer
Feature Image
  • Rotors
    • Torque Optimized – Delivers consistent output under heavy load
    • Precision Balanced – Reduces vibration and wear during operation
  • Stators
    • High-Density Windings – 99.99% Pure maximized copper fill for stronger output
    • Precision Lamination Stack – Reduces energy loss and heat buildup
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  • Regulators
    • Heavy-Duty Electronics – Forged for long service life in harsh conditions
    • Stable Power Delivery – Protects batteries and electrical systems
  • Rectifiers
    • Reinforced Diode Array – Forged to deliver stable performance under extreme current flow
    • Clean Power Output – Converts AC to DC with minimal loss
Feature Image
  • PowerForge™ Bearing System
    • Friction Optimized – Smooth, long-life performance under extreme load
    • Quiet Rotation – Premium steel races ensure low-noise operation
  • PowerForge™ Pulley Drive
    • Slip Resistant – Precision grip reduces belt slippage
    • Precision-Forged – Maximum efficiency from engine to alternator
Feature Image
  • Rotor & Stator
    • 100% Copper Windings – Provides maximum conductivity and efficiency
    • Optimized Magnetic Field Design – Rotor engineered for superior performance
    • Enhanced Insulation – Protects against heat and short circuit for long durability

Product Guides

Installation Guide

What's in the box?

Alternator

Alternator

Instruction Manual

Instruction Manual

Test Report

Test Report

Rugged Packaging

Rugged Packaging

How do I know if my alternator needs replacing?

How do I know if my alternator needs replacing?

Common signs include dim lights, dead battery, strange noises, or the battery warning light staying on.
Do you offer a warranty on your parts ?

Do you offer a warranty on your parts ?

Our parts made with high-end raw material, and with strict Quality Control. However, for the customer's peace of mind, we offer a 1 year hassle-free warranty.

Can I install this myself?

Can I install this myself?

We recommend installation by a qualified technician to ensure proper fitment and to prevent electrical damage. Please ensure you follow the provided wiring diagram to avoid voiding the warranty!
What should I do if the alterantor doesn't work after installation?

What should I do if the alterantor doesn't work after installation?

Double-check connections and battery health. If issues persist, contact our support team for troubleshooting or replacement options.
Is the alternator tested before it’s shipped?

Is the alternator tested before it’s shipped?

Yes, each unit is thoroughly tested for quality and performance before shipping. The test report is attached to the unit.

Do I need to make any modifications to fit this in my tractor?

Do I need to make any modifications to fit this in my tractor?

No, this is a direct-fit replacement manufactured to OEM specifications, so no modifications are typically necessary.
What kind of maintenance does the alternator need?

What kind of maintenance does the alternator need?

Our product is designed to be mostly maintenance-free, but periodic checks of wiring, mounting bolts, and cleanliness are prudent.