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• 2003 ALLEGRO BUS 38TGP

This hard-to-find, sought-after Allegro Bus was built during an era when quality was king. The Allegro Bus was Tiffins premium luxury diesel-pusher line, positioned directly below the Zephyr. This coach reflects that build quality through its quartersawn solid natural oak cabinetry, solid brass fixtures, fiberglass body, premium materials, and heavy-duty systems.
It is exceptionally clean inside and out, with annual maintenance regularly performed, major preventive services handled through Freightliner when appropriate, and extensive hard-copy and digital documentation retained. More than $60,000 has been spent during current ownership, divided between preventive maintenance and service, repairs and preservation, and modernization and comfort upgrades.

Coach and Drivetrain
2003 Tiffin Allegro Bus 38TGP
VIN: 4UZAAHAK93CK36533
Approximately 122,000 miles
Three slide-outs
Caterpillar 3126E 7.2-liter diesel, 330 HP and approximately 860 lb-ft of torque
Freightliner XC chassis
Allison 3000MH six-speed automatic transmission
Engine exhaust brake
Air-ride suspension and air brakes
Computerized automatic leveling jacks
Cummins Onan Quiet Diesel generator, approximately 1,200 hours
100-gallon fuel capacityoak

Preventive Maintenance, Service and Preservation
This coach has been maintained before problems occur, not after failures.
Annual preventive maintenance regularly performed, including Freightliner PM service
Allison transmission fluid and filter service completed
Engine fuel filter replaced
Air dryer maintained
Engine belt replaced in 2025
New front air bags in 2026
Six new Toyo tires and four new Koni shocks in 2026
Four new house batteries in 2026
New engine air cleaner installed September 2026
Generator oil, oil filter, fuel filter, air filter and belt service
Cat HEUI hydraulic oil hose upgraded from rubber to rigid steel
IAP sensor replaced in 2026
Complete roof reseal in 2022
Complete body and exterior-seam reseal in 2022
Rear-radiator and charge-air-cooler maintenance September 2026
An additional access panel was added through the bedroom-closet engine-access area for direct cooling-package inspection and service access 2023

Modernization and Upgrades
Powered 21' passenger-side patio awning with LED lighting, installed in 2022
Powered entry-door awning, installed in 2022
Three new slide toppers in 2023
Automatic transfer switch replaced in 2023
Upgraded 12-volt fuse panel
LED headlight conversion in 2022
LED dock lights in 2023
LED interior-lighting conversion
Four-camera color monitoring system with two side cameras, two rear cameras and a large dash display
MCD day/solar and blackout shades throughout, except the cab
New queen mattress Sept. 2026
Front TV box cabinet removed now flat screen
Bedroom flat-screen TV with hidden storage compartment behind it
Spare touch-up paint and many additional extras included
Interior, Comfort and Factory-Style Features
Desirable 1.5-bath layout
Rear bedroom slide, wardrobes and closets
Oversized shower
Porcelain toilet
Two vanities
Solid quartersawn oak cabinetry throughout - no press board in this coach
Solid brass fixtures throughout
Splendide washer/dryer
Dishwasher
Central vacuum
Large refrigerator with ice maker
Dual kitchen sinks
Three-burner propane cooktop
Traditional oven as well as a convection & microwave combo
Ultra-leather power driver and passenger chairs; passenger chair reclines
Ultra-leather Steelcase sofa converts to a full-size bed with a very comfortable mattress
Dinette converts for additional sleeping
Sleeps six comfortably
Two furnaces and two HVAC zones
Two 15,000-BTU heat pumps with ducted air conditioning
Three Fantastic Fans
Electric steps, heated remote mirrors, remote spotlight and outside shower
Large pass-through basement with substantial exterior storage

Documentation and Owner Support
The coach includes original Tiffin and appliance manuals, Freightliner information, wiring diagrams, diagnostic reports, service records, receipts, parts invoices, maintenance paperwork, hard-copy files and a digital archive. Tiffin customer service and parts support remain available, and the coach comes with relevant manuals, spare parts, touch-up paint and numerous ownership extras.

Honest Disclosures
Fuel gauge is currently inoperative. Freightliner diagnostics indicate the issue may involve the fuel-sending unit, associated wiring or a loose ground. The gauge completed its self-test. A new OEM Freightliner sending unit is included.
Dash air conditioning and heat are currently inoperative, although the dash ventilation fan works.
Driver-side rear leveling jack may need a return spring or rebuild.
One insulated window half has fogging driver side slide window.
A couple of small windshield glass dings were filled and have not spread in years.
One minor cargo-door dent and one scratched/gouged cargo door are shown in the photos.
Passenger seat has a 2" repaired seam
Kitchen counter repaired crack see photo
The exterior presents extremely well for its age, and the coach runs and drives powerfully and smoothly. This is not a typical 2003 diesel pusher. It is an enthusiast-owned, exceptionally maintained and highly documented Allegro Bus from the golden era when quality was king.