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Saf-T-Liner® EFX.
Enhanced efficiency and maneuverability.

When it comes to school buses, any improvement in efficiency can make a big difference. Our Saf-T-Liner® EFX has plenty of examples. First, it has seating for up to 90 passengers and a wider loading aisle, providing tremendous flexibility for whatever the school year brings. The cockpit is designed for driver comfort and safety, with ample leg room and optimized access to controls. It also offers better visibility and easier steering. And our engine cover allows quick, tool-free access to the engine, fluids and belts, keeping routine maintenance time to a minimum.
The Saf-T-Liner® EFX is a front-engine, transit-style school bus designed to provide excellent value for customers. Thomas Built listens to drivers, mechanics and transportation directors to help us develop better buses. And with one of the most extensive dealer networks in the industry, there’s always support nearby when you need it.

Passenger capacity

Up to 90


136″, 155″, 174″, 193″, 212″, 231″


Up to 36,200 lbs.


Cummins® ISB 200-260 HP


Zonar V3 advanced telematics system

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  • Driver cockpit with ergonomic switch placement and spacious seating area
  • 45-degree wheel cut
  • Electronic heater control module
  • Passenger loading functions grouped together
  • High capacity air cleaner
  • 78″ headroom
  • Low-profile engine cover
  • Heavily insulated engine cover
  • Extra storage for personal items or emergency equipment
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Safety Features

Decade after decade, Thomas Built Buses has followed one simple philosophy: design and build the kind of bus we’d want our own children to ride in. It’s a simple idea and it works. Passenger safety is our number one priority and every school bus we manufacture meets or exceeds all Federal Motor Vehicle Safety Standards for school buses.

  • Meets or exceeds FMVSS/CMVSS
  • Roof bows extend to bottom of side panels
  • 12-gauge steel rear corner posts
  • Double-bolted body mounting clips
  • Fuel tank mounted between frame rails
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Available Options
  • Wheelchair lift
  • Tilt and telescoping steering wheel
  • Heated driver’s seat
  • Air suspension driver’s seat
  • Rear air ride suspension
  • Air-conditioning
  • AM/FM radio/CD/PA
  • Dual radio capability
  • Remote and heated mirrors
  • Reading lights
  • Various seat options available: bench seat without belts, with lap belts, with three-point belts; integrated child seat or coach-style seating
  • LED light packages
  • Acoustical ceiling
  • Overhead storage
  • Under body storage compartment
  • Tinted windows
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  • Access door for CDL belt check
  • Convenient fluid check hatch
  • Easy-access engine hood requires no tools to remove
  • Streamlined electrical center for easy identification and access
  • Fuse relay centers provide circuit protection and easy diagnostics
  • Exterior electrical access door
  • Front access to wipers, heater core and filter
  • Lights equipped with plug-in connectors
  • Display of fault codes in dash
  • Customer accessory module for aftermarket component hookup
  • Chassis electrical easily accessible in separate compartment
Driver Visibility
  • Maximum visibility windshield of 3,812 square inches
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