is this genuine stamford or is it a replacement

Hi ChristopherThis is a generic reoplacement that carries a 1 year warranty. We also have the original available at our Amazon store.Ed

Quiero saber si es buen producto y si lo recomiendan

Hasta el momento funciona a la perfección. Y salvo problemas de fabricación como cualquier producto electrónico es recomendable

do you have a wiring diagram for converting from 350-28700 avr to the as440 avr?

If you are going to use the AS440, you won't be connecting P2,P3&P4, for the PMG. They will need to be safely isolated and taped off. 7 &8 are your voltage sensing wires, may also be labeled 2& 3, go on the terminals marked as such. The exciter wires are x and xx and go on the terminals marked as such. All the markings are on the back side of the regulator. Don't forget to set the jumpers for you correct Hz and pole arrangement. This is also shown on the paperwork sent with the regulator.

My as 440 has a transformer on it, this one does not appear to. what is the diference?

First make certain it is the same model. Second,the transformer may have been replaced with other components. None of the replacement AS440 have a transformer.

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Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty

Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty

Product ID: 34788346

⚡±1.0% voltage regulation precision

🔌Selectable input voltage: 100-130V or 190-264V

🔧2-year hassle-free warranty

฿3739

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Description

⚡ Power up your ride with precision and confidence!

EFFORTLESS REPLACEMENT - Generic drop-in replacement for Cummins AS440, minimizing downtime and installation hassle.
PEACE OF MIND WARRANTY - Backed by a 2-year warranty, ensuring long-term reliability and support.
PRECISION POWER CONTROL - Maintain stable voltage with ±1.0% regulation for optimal engine performance.
UNIVERSAL COMPATIBILITY - Easily adapts to 1-phase voltage inputs from 100 to 264 VAC, covering diverse setups.
RELIABLE CURRENT HANDLING - Supports continuous 4A current with robust 15-ohm resistance for durability.

The Thunder Parts AVR AS440 is a generic automatic voltage regulator designed as a direct replacement for the Cummins AS440. It offers selectable input voltages (100-130V or 190-264V), precise voltage regulation within ±1.0%, and continuous 4A current handling. Backed by a 2-year warranty, it ensures reliable performance for watercraft alternators and related power systems.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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฿3739

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty

Description

Specifications

Common Questions