--- product_id: 34788346 title: "AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty" brand: "thunder parts" price: "342 Lei" currency: RON in_stock: true category: "Thunder Parts" url: https://www.desertcart.ro/products/34788346-avr-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator store_origin: RO region: Romania --- # ±1.0% Voltage Regulation Selectable Input Voltage Range 2-Year Warranty Assurance AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty **Brand:** thunder parts **Price:** 342 Lei **Availability:** ✅ In Stock ## Summary > ⚡ Power up with precision – never settle for less! ## Quick Answers - **What is this?** AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty by thunder parts - **How much does it cost?** 342 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/34788346-avr-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 - • **Trusted Durability:** Backed by a 2-year warranty, engineered for long-lasting reliability. - • **Reliable Current Output:** Continuous 4A current with 15Ω resistance ensures consistent energy flow. - • **Precision Voltage Control:** Maintain stable power with ±1.0% regulation for flawless performance. - • **Seamless Cummins Replacement:** Generic fit designed to perfectly replace Cummins AS440 AVR without compromise. - • **Versatile Input Compatibility:** Easily switch between 100-130V or 190-264V single-phase inputs to fit your setup. ## Overview The Thunder Parts AVR AS440 is a high-performance automatic voltage regulator designed as a generic replacement for the Cummins AS440. It features selectable input voltages (100-130V or 190-264V), precise ±1.0% voltage regulation, and a continuous 4A current output with 15Ω resistance. Engineered for reliability, it comes with a 2-year warranty, making it a dependable choice for maintaining stable power in your vehicle or watercraft alternator system. ## 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 ## Features - CUMMINS is a registered trademark of Cummins. - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01IDRW0MM | | Best Sellers Rank | #272,754 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,171 in Power Converters | | Customer Reviews | 4.1 4.1 out of 5 stars (19) | | Date First Available | July 13, 2016 | | Item Weight | 12 ounces | | Item model number | AS440 AVR | | Manufacturer | Thunder Parts | | Package Dimensions | 6.4 x 4.6 x 2.4 inches | ## Images ![AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - 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. ## 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! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/34788346-avr-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator](https://www.desertcart.ro/products/34788346-avr-as440-generic-replacement-for-cummins-as440-automatic-voltage-regulator) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-08-27*