PD4903, PD4905, P8M4905A, H8H649


  • Length: 40 feet
  • Width: 96 inches
  • Height: 132 inches
  • Wheelbase: 319 inches
  • Turn radius: 49 feet
  • Typical Engine: DDA 8V-71
  • Transmission: Manual, 4-speed
  • Seating up to 53
  • Luggage: 290 cu. ft. (3-axle) 403 cu. ft. (2-axle)
  • Aisle width: 14 inches
  • Front door width: 25 inches

Production History

Production history
Year Model Qty
1958-1969 PD-4903 401
1970-1971 PD-4905 331
1972-1978 P8M-4905A 2,027
1979-1980 H8H-649 233

The PD-4903 was the first 40-foot GM bus available to non-Greyhound operators. (Greyhound had an exclusive 40-foot design, the PD4501 Scenicruiser.)

The next version, the PD-4905 generated only 331 sales. The P8M-4905A introduced an optional fully-retractable third axle; 2,027 were sold in seven years of production. The GMC H8H649 was a continuation of the GMC P8M4905A and comparison of the manuals has shown no difference between the coaches.

GM discontinued production of intercity buses in 1980, having produced only an average of 230 buses annually since 1975. GM’s intercity coach line began to decline in the mid-1960s as Greyhound and Trailways began building their own buses. Furthering the decline of GMs intercity market, many smaller carriers began buying their buses from Greyhound’s subsidiary Motor Coach Industries or Trailways’ Eagle Manufacturing.

Information from the Bus World Encyclopedia of Buses – 1988


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