CamperHardlyKnowHer

Tiffin Allegro Bay 38 BB

Class Cbuilt 2023– (in production)Better build tierPatient search on the used market
WHAT ONE COSTS
$401,700MSRP today

Still in production — a used 2023 would run roughly $277,200.

THE SPECS
Length39.3 ft
Height (incl. A/C)13.3 ft
Width8.4 ft
Interior height6.9 ft
GVWR33,000 lb
Dry weightnot published
Sleeps5
Slide-outs3
Fresh water150 gal
Grey water70 gal
Black water45 gal
Air conditioning30,000 BTU
Fuel100 gal
Engine / chassisCummins B6.7 360 HP / Allison 3000 MH 9-speed on Freightliner S2RV
Generator8.0 kW Onan Quiet Diesel QD 8000

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

WHERE PEOPLE SLEEP
  • Rear king memory foam (60×80 queen optional)(Permanent)72×80
  • Front overhead cab bunk, 300 lb capacity(Permanent)
  • 75" booth dinette-sleeper(Convertible)72×45
  • 68" air coil sofa bed(Convertible)72×52
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Tiffin (Better tier): Tiffin's first Super C - a Freightliner S2RV diesel coach carrying a Tiffin Class A interior. (Tiffin also used the Allegro Bay name on a front-engine Class A through about 2013; this entry is the Super C only.)

YEAR BY YEAR — WHAT CHANGED
  • 2023Introduced
  • 2026114 cu ft basement, 315 sq ft with slides out
FINDING ONE

Patient search — weeks of watching, and probably some travel. Why: still in production. Estimated from build volume and production span — not a count of live listings.

THE READ

Bath-and-a-half triple slide for couples who travel long and want two toilets.

OTHER ALLEGRO BAY FLOORPLANS
Is the 38 BB 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 manufacturer spec sheets, retrieved 2026-07.