--- product_id: 34788346 title: "Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty" brand: "thunder parts" price: "254.77 DT" currency: TND in_stock: true category: "Thunder Parts" url: https://www.desertcart.tn/products/34788346-thunder-parts-avr-as440-generic-replacement-for-cummins-as440-automatic store_origin: TN region: Tunisia --- # ±1.0% Voltage Regulation Selectable Input Voltage Range 2-Year Warranty Assurance Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty **Brand:** thunder parts **Price:** 254.77 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power up with precision — never miss a beat! ## Quick Answers - **What is this?** Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty by thunder parts - **How much does it cost?** 254.77 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/34788346-thunder-parts-avr-as440-generic-replacement-for-cummins-as440-automatic) ## 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 Replacement:** Generic yet perfectly compatible with Cummins AS440 for hassle-free swaps. - • **Peace of Mind Warranty:** Backed by a 2-year warranty to keep your power systems worry-free. - • **Precision Voltage Control:** Maintain stable power with ±1.0% regulation for seamless performance. - • **Reliable Current Handling:** Supports continuous 4A current with robust 15Ω resistance minimum. - • **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 generic replacement automatic voltage regulator designed for Cummins AS440 systems. It offers selectable input voltage ranges (100-130V or 190-264V single-phase), precise voltage regulation within ±1.0%, and continuous 4A current handling. Packaged with a 2-year warranty, it ensures reliable and stable power conversion for your vehicle or watercraft alternator needs. ## 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 | #520,121 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,451 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 ![Thunder Parts | 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) ![Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - Image 2](https://m.media-amazon.com/images/I/71uDwpScznL.jpg) ![Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - Image 3](https://m.media-amazon.com/images/I/71BNil6DwtL.jpg) ![Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - Image 4](https://m.media-amazon.com/images/I/61S3EcBXZXL.jpg) ![Thunder Parts | AVR AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator | 2 Year Warranty - Image 5](https://m.media-amazon.com/images/I/810X98NAuSL.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.tn/products/34788346-thunder-parts-avr-as440-generic-replacement-for-cummins-as440-automatic](https://www.desertcart.tn/products/34788346-thunder-parts-avr-as440-generic-replacement-for-cummins-as440-automatic) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-12*