---
product_id: 34788346
title: "AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator"
brand: "thunder parts"
price: "S$75"
currency: SGD
in_stock: null
reviews_count: 4
category: "Thunder Parts"
url: https://www.desertcart.sg/products/34788346-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator
store_origin: SG
region: Singapore
---

# ±1.0% voltage regulation precision Selectable input voltage range 100-130V or 190-264V 2-year hassle-free warranty AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator

**Brand:** thunder parts
**Price:** S$75
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up your engine’s heartbeat with precision and reliability!

## Quick Answers

- **What is this?** AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator by thunder parts
- **How much does it cost?** S$75 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/34788346-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator)

## Best For

- thunder parts enthusiasts

## Why This Product

- Trusted thunder parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Power Control:** Maintain stable voltage with ±1.0% regulation for flawless engine performance.
- • **Plug-and-Play Replacement:** Generic fit for Cummins AS440 ensures seamless installation without downtime.
- • **Reliable Current Handling:** Supports continuous 4A current with robust 15Ω resistance for durability.
- • **Confidence-Backed Warranty:** Enjoy peace of mind with a solid 2-year warranty protecting your investment.
- • **Universal Voltage Compatibility:** Easily switch between 100-130V or 190-264V input to fit diverse power setups.

## Overview

The Thunder Parts AVR AS440 is a generic automatic voltage regulator designed as a direct replacement for Cummins AS440 models. It features selectable input voltage ranges (100-130V or 190-264V), precise voltage regulation within ±1.0%, and supports continuous 4A current with a minimum 15Ω resistance. Backed by a 2-year warranty, this compact and reliable unit ensures stable power delivery for watercraft and vehicle alternators, making it a trusted choice for professionals seeking dependable performance.

## Description

Buy Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent, value of money - Material delivered sooner as expected delivery, excellent in quality.
Review: Malo se reventó explotó

## Features

- CUMMINS is a registered trademark of Cummins, Inc.
- SENSING INPUT: Voltage Jumper selectable: 100-130 Vac 1 phase or 190-264 Vac 1 phase
- FREQUENCY 50-60 Hz nominal
- OUTPUT: Voltage 82 V d.c. @ 200 V a.c.
- Current continuous 4A - Resistance 15 ohms min
- REGULATION: +/- 1.0% - Generic replacement - 2 year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IDRW0MM |
| Best Sellers Rank | #681,236 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,200 in Power Converters |
| Customer Reviews | 4.1 4.1 out of 5 stars (19) |
| Date First Available | July 13, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12 ounces |
| Item model number | AS440 AVR |
| Manufacturer | Thunder Parts |
| Package Dimensions | 6.4 x 4.6 x 2.4 inches |

## Images

![AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator - Image 1](https://m.media-amazon.com/images/I/61HxCHybZ+L.jpg)

## Questions & Answers

**Q: is this genuine stamford or is it a replacement**
A: Hi ChristopherThis is a generic reoplacement that carries a 1 year warranty. We also have the original available at our Amazon store.Ed

**Q: Quiero saber si es buen producto y si lo recomiendan**
A: Hasta el momento funciona a la perfección. Y salvo problemas de fabricación como cualquier producto electrónico es recomendable

**Q: do you have a wiring diagram for converting from 350-28700 avr to the as440 avr?**
A: 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.

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, value of money
*by M***S on August 25, 2019*

Material delivered sooner as expected delivery, excellent in quality.

### ⭐ Review
*by M***L on April 18, 2024*

Malo se reventó explotó

### ⭐ Review
*by Y***A on July 18, 2019*

No funsiono vinos defectuosa .. la envie a Venezuela y perdí el dinero de la compra más el dinero del envió la tarjeta no sirve

## Frequently Bought Together

- Thunder Parts | AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty
- Thunder Parts SX460 AVR Generic Replacement for Cummins SX460 Automatic Voltage Regulator | 2 Year Warranty!
- AVR SE350 Automatic Voltage Regulator Control Module for Generator Genset with 2 Year Warranty!

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**Shop now:** [https://www.desertcart.sg/products/34788346-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator](https://www.desertcart.sg/products/34788346-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*