Massey's Diesel & RV Repair
Diesel Trucks • Motorhomes • Phoenix, AZ
Cummins specialists. Semi trucks, diesel pickups & RV/motorhome repair under one roof. $2,000+ cheaper than the dealer — and we let you stay hooked up while we work.
Diesel Truck Services
Semis, diesel pickups, and Class A/B/C diesel — Massey's handles it all. Cummins specialists with 10+ years in Phoenix.
Diesel Engine Repair
Cummins, Detroit Diesel, PACCAR — engine diagnostics, repair, and overhaul. (602) 233-1700
Brakes & Air Systems
Air brake inspection, drums, discs, slack adjusters, compressors, dryers — DOT compliant & road-ready.
Suspension & Air Bags
Air bag replacement, leaf springs, shocks, king pins. Peterbilt, Kenworth, Freightliner & more.
Electrical & Diagnostics
Engine fault codes, wiring harness repair, alternators, starters — we diagnose what dealers miss.
Transmission Service
Eaton Fuller, Allison automatic, manual gearboxes — service, rebuild, replace. Honest quotes guaranteed.
Preventive Maintenance
Oil changes, filters, fluid service, inspections. Keep your diesel truck running strong in Arizona heat.
Call Massey's — we've kept Phoenix truckers rolling for over 10 years. Honest quotes, no runaround.
Motorhome & RV Repair
From Class A diesel pushers to Class C gas rigs — we repair motorhomes and keep RVers on the road across the Southwest.
Engine & Drivetrain
Cummins diesel, Caterpillar, Ford V10, Chevy 8.1 — engine diagnosis, repair, and service on all Class A, B & C RVs.
Electrical & Systems
Chassis electrical, slide-out motors, leveling systems, generator service — we track down RV electrical gremlins.
Brakes & Safety
Brake inspection and service, tires, wheel bearings — road-safe before your next trip across the Southwest.
Stay While We Work
RV hookup available. We let customers stay hooked up for days while repairs are completed — no need for a hotel.
Diesel & Truck Brands We Service







Engine Brands We Specialize In





The Massey's Difference
Customers have saved $2,000+ vs. Cummins dealer quotes — same quality, honest pricing, no dealer markup.
Stay in your motorhome while we work. We provide hookup — no hotel bills while your rig is being repaired.
Many repairs completed same day. We know you can't afford to be stuck — fast turnaround is our standard.
75 Google reviews. We tell you exactly what's needed, what it costs, and why — no surprise charges.
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Real Reviews
"After days of getting the runaround from the Cummins shop, we asked around and every recommendation was Massey's. They did the engine repair for $2,000 less than Cummins quoted — and let us stay hooked up for two days."
"Went down with our Motorhome out by Lake Pleasant — got towed into Massey's on a friend's referral. They had it in and out the same day. Best RV service I've ever received. EJ was great to work with."
"Got quotes from 4–5 shops for my 2003 Peterbilt 379. Massey's kept it very honest — gave me a quote and a week later when air bags and front end work was done, the price matched exactly. Great semi shop."
Service Areas
Serving Phoenix metro and RVers crossing the Southwest.