CamperHardlyKnowHer

Tiffin Zephyr 45 MZ

Class Abuilt 2019–19Better build tierScarce on the used market
WHAT ONE COSTS
price not published

The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.

THE SPECS
Length44.9 ft
Height (incl. A/C)12.9 ft
Width8.4 ft
Interior height7.0 ft
GVWR51,000 lb
Dry weightnot published
Sleeps4
Fresh water90 gal
Grey water70 gal
Black water50 gal
Engine / chassisCummins ISX 605 HP / Allison 4000 MH on Tiffin PowerGlide tag-axle chassis
Generator12.5 kW Onan Quiet Diesel

A missing row means the maker never published that figure — unknown, not zero.

WHERE PEOPLE SLEEP
  • Rear king(Permanent)72×80
  • Sofa sleeper(Convertible)
  • Booth dinette(Convertible)
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Tiffin (Better tier): Tiffin's 45-foot flagship tag-axle diesel pusher, above the Allegro Bus in the Red Bay line.

YEAR BY YEAR — WHAT CHANGED
  • 2019Introduced and dropped in the same model year; GVWR 51,000, GCWR 71,000
FINDING ONE

Scarce — months of watching; be ready to fly and drive it home. Why: only one model year. Estimated from build volume and production span — not a count of live listings.

THE READ

One-year plan offered with the 45 PZ when the Zephyr moved back onto Tiffin's PowerGlide chassis.

OTHER ZEPHYR FLOORPLANS
Is the 45 MZ your #1 — or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about — set your priorities as sliders and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

Data compiled from dealer and aggregator listings, retrieved 2026-07.