CamperHardlyKnowHer

Tiffin Zephyr 45 QBZ

Class Abuilt 2011–12Better 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
Length44.8 ft
Height (incl. A/C)12.8 ft
Width8.4 ft
Interior height7.0 ft
GVWR46,600 lb
Dry weightnot published
Sleeps4
Fresh water90 gal
Grey water70 gal
Black water50 gal
Fuel150 gal
Engine / chassisCummins ISM 10.8L 500 HP / Allison 4000 MH on Spartan K2 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)
  • 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
  • 2011Verified spec year: Spartan K2, GVWR 46,600, GCWR 61,600
  • 2012Last year before the 45 LZ / 45 TZ pair
FINDING ONE

Scarce — months of watching; be ready to fly and drive it home. Why: only 2 model years; 14 years out of production. Estimated from build volume and production span — not a count of live listings.

THE READ

The Spartan-chassis Zephyr of the early 2010s - big, heavy, 24.4 gal of propane and an LPG cooktop.

OTHER ZEPHYR FLOORPLANS
Is the 45 QBZ 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.