The 2026 Tiffin Zephyr 45PZ is a 45-foot flagship Class A diesel pusher built for high-end RVers. It combines residential-style luxury, advanced driving technology, and powerful performance, positioning it at the very top of Tiffin’s lineup.
Engine: Cummins X15 diesel 605 HP
Allison 6-speed automatic
Tiffin PowerGlide raised-rail diesel chassis
Towing capacity Up to 20,000 lbs
Fuel capacity 150 gallons
12.5 kW Diesel generator
Aqua-Hot hydronic heating system
Multiplex electrical controls