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ATG10714 Alternator 128170-77202 / AHI0084 – Fits Yanmar Marine Engine 2QM20Y 1975–1980 12V 35A Replacement Generator Alternator

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PRODUCT DETAILS

ATG10714 Alternator 128170-77202 / AHI0084 – Fits Yanmar Marine Engine 2QM20Y 1975–1980 12V 35A Replacement Generator Alternator

Part Numbers: 128170-77202, AHI0084

Cross Reference Numbers:
Yanmar 128170-77200
Yanmar 128170-77201
Yanmar 128170-77202
Arrowhead AHI0084
Hitachi LR135-74
Hitachi LR135-74B
Lester 12108
Cargo 112270

Product Description

The ATG10714 Alternator is a marine-grade replacement generator designed for Yanmar marine diesel engines, including the 2QM20Y engine produced from 1975–1980.

This alternator replaces OEM references 128170-77202 and AHI0084 and provides reliable 12V 35A charging performance for marine electrical systems. Designed for sailboats, fishing boats, and marine auxiliary engines, ATG10714 delivers stable battery charging power for onboard electronics, navigation equipment, and engine electrical components.

Built for marine environments, this alternator features corrosion-resistant components, heavy-duty rectifier and regulator assemblies, durable bearings, and a sealed design to withstand vibration, moisture, and continuous engine operation.

Product Specifications

Property	Value
Product Model	ATG10714
Alternator Type	Marine Engine Alternator
OEM Part Numbers	128170-77202, AHI0084
Voltage	12V
Output Current	35A
Rotation	CW (Clockwise)
Regulator Type	Internal Regulator
Fan Type	External Fan
Pulley Type	1V Solid Pulley
Pulley Diameter	72 mm
Terminal Type	B+ / E / P
Polarity	Negative
Application	Marine Diesel Engine
Engine Brand	Yanmar
Engine Model	2QM20Y
Model Years	1975–1980
Condition	New Aftermarket

Item	Value
Net Weight (NW)	5.2 KG
Gross Weight (GW)	6.0 KG
Carton Size	32 × 28 × 28 CM
Packaging	Export Standard Carton with Protective Foam

PRODUCT HIGHLIGHTS

Feature	Description	Benefit
OEM Replacement Design	Replaces Yanmar 128170-77202 and AHI0084 alternators	Ensures proper fit and compatibility
12V 35A Charging Output	Designed for Yanmar marine electrical systems	Provides stable battery charging
Marine Grade Construction	Built for humid and corrosive environments	Improves durability and reliability
Internal Regulator	Integrated voltage control system	Maintains consistent charging voltage
Heavy Duty Components	Quality rotor, stator, rectifier, and bearings	Extends service life
Direct Replacement Fit	Matches original mounting and pulley specifications	Simplifies installation

SHIPPING

Item Details

Processing Time Orders are processed within 1-3 business days after payment confirmation

Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight

Estimated Delivery Time Express shipping: 3-7 business days, depending on destination

Packaging Export-standard cartons with protective inner packing

Tracking Tracking number will be provided once the order is shipped

Shipping Cost Calculated based on weight, dimensions, and destination

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WARRANTY POLICY

All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

SHIPPING POLICY

We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

EASY RETURN POLICY

We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.

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