Dual & Triple Alternator Bracket Kits | Ford · GM · Duramax · RAM | Mechman®
Bracket Kits · Multi-Alternator Charging
Dual & Triple Alternator Bracket Kits
When one alternator isn't enough, add a second — or a third. Complete, bolt-on kits with the belt and wiring harnesses included, engineered for a trouble-free install. USA-built in Knoxville, TN.
Why Mechman Kits
100% complete, bolt-on kits
Every Mechman® bracket kit is a complete multi-alternator solution — not a pile of parts you have to source and figure out. Everything from the belt to the wiring is supplied.
01
Complete kit
Brackets, hardware, belt, and wiring harnesses — bolt on and charge.
02
Belt & harnesses included
The correct belt and the harnesses to wire it up come in the box.
03
Proper alignment
Downloadable instructions detail spacer usage for correct belt alignment.
04
USA-built
Designed and manufactured in Knoxville, Tennessee.
The Case for Two (or Three)
Why run more than one alternator?
One factory alternator can only make so much current. When your electrical demand outgrows it, a second or third alternator multiplies your charging capacity and holds voltage steady under loads that would otherwise pull the system flat.
- Big audio & SPL builds — amplifiers that pull hundreds of amps at volume.
- Off-grid & export power — inverters and battery banks for work sites, vending, and overland rigs.
- Work trucks & utility — winches, lighting, lifts, pumps, and tools running all day.
- Emergency, comms & mobile command — radios and equipment that demand rock-steady voltage.
- Diesel & heavy-duty — high idle loads where a single alternator simply runs out of headroom.
Shop by Application
Find your bracket kit
Matched, application-specific kits across the most-requested platforms.
Flagship Application
2001–2022 · GM 6.6L DURAMAX™ · 400A KITS
Duramax Dual Alternator Kits
Our most complete bracket program. Year-specific dual-alternator kits for the 6.6L Duramax — including options built around the 400-amp B11348400 — to feed serious electrical loads on a diesel that's already working hard. Bracket-only or alternator-included, in a range of finishes.
Ford™ · incl. Godzilla 7.3L
Ford Dual Alternator Brackets
Dual-alternator bracket kits compatible with Ford™ applications, including the 7.3L Godzilla gas V8.
GM™ · 99–18 Trucks · Dual
GM Dual Alternator Brackets
Dual kits compatible with 1999–2018 GM™ trucks — bracket-only, or complete with one or two alternators.
GM™ · 99–13 Trucks · Triple
GM Triple Alternator Brackets
Maximum charging: triple-alternator kits compatible with 1999–2013 GM™ trucks, comp-only or with three alternators.
RAM™ · Dual
RAM Dual Alternator Brackets
Dual-alternator bracket kits compatible with RAM™ trucks for high-demand electrical builds.
GM™ · Adapter Brackets
GM Adapter Brackets
Adapter brackets compatible with GM™ — including 1994–2003 2.2L SOHC and the Vortec-style SD7 A/C compressor bracket.
Mahindra™ · Roxor
Mahindra Roxor Brackets
Bracket kits compatible with the Mahindra™ Roxor for added charging capacity on the trail or off-grid.
Not sure which kit fits your build?
Tell us your vehicle, engine, and how much power you need, and we'll point you to the right dual or triple alternator bracket kit.
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