Diamond Group

About Diamond Group

Diamond Group (dg-usa.com) is a family-owned aftermarket supplier specializing in high-quality electrical components and OEM replacement parts for the RV, marine, and automotive industries. With over 500 products in their catalog, Diamond Group has built a reputation on a simple but powerful promise: deliver parts that meet or exceed original equipment quality standards, backed by relationships that are as dependable as the products themselves.

Founded and headquartered in Alabama, Diamond Group approaches business the old-fashioned way. As a family-owned operation, the company treats every handshake as a commitment — to customers, suppliers, and employees alike. That culture of integrity has helped Diamond Group grow from a niche RV parts specialist into a trusted name across the recreational vehicle aftermarket.

The Hott Rod: An RV Industry Icon

Diamond Group’s most celebrated innovation is the Hott Rod water heater conversion kit, widely recognized as the number one selling RV water heater conversion product in the industry. The Hott Rod converts a propane-fed RV hot water system to electric operation while keeping the LP system fully intact — giving owners the best of both worlds. Whether plugged in at a campsite or running off a generator, users can enjoy reliable hot water without burning propane. The Hott Rod is the only conversion kit in its class to carry both UL and CSA approval, and it is backed by a lifetime warranty to the original purchaser, underscoring Diamond Group’s long-term commitment to quality.

Available in kits for 6-gallon and 10-gallon water heater tanks, the Hott Rod is compatible with major RV water heater brands and features an adjustable thermostat for precise temperature control. The system requires virtually no maintenance and draws low enough wattage that it won’t interfere with other onboard electrical appliances.

LED Trailer & RV Lighting

Beyond the Hott Rod, Diamond Group has earned strong recognition in the RV and trailer lighting space. Their trailer lights lineup spans a wide range of applications — from oval and rectangular stop/tail/turn assemblies to weatherproof clearance and side marker lights. Products like the iconic “Dragon’s Eye” LED marker lights reflect Diamond Group’s eye for design, while their multi-diode LED assemblies deliver bright, energy-efficient output built to withstand the elements.

For RV owners looking to upgrade or replace worn lighting, Diamond Group’s tail lights are a go-to solution. Many models serve multiple functions in a single housing — combining stop, tail, turn, and even backup lighting — simplifying installation and reducing the number of components needed. Weatherproof construction, built-in reflectors, and polycarbonate lenses ensure these lights hold up through rain, road grime, and years of travel.

Expanding the RV Aftermarket

Through strategic partnerships with manufacturing plants around the world, Diamond Group has expanded well beyond its proprietary product lines to offer a broad spectrum of OEM replacement parts. Their electrical component catalog includes 110V speed wire products, standard and decor switches, receptacles, 30-amp plugs, 12-volt switching harnesses, audio/video wiring accessories, and intelligent fuses. Whether you need a hard-to-find specialty item or an everyday common-use replacement, Diamond Group’s catalog is designed to cover it.