The Protector was a custom chassis built by E-One Inc. from 1990 to 2002. Protector was also used as a model name for pumpers built on commercial and non-E-One custom chassis.
Protector I[]
- Chassis: GMC Sierra 6500
- Drivetrain: 4x2 or 4x4
- Pump Panel Style: Side-mount or Top-Mount
- Pump Style: mid-mount transverse
- Pump: Hale, 500gpm - 1000gpm
- Tank: 500 or 750
Protector II[]
- Chassis: Ford C-8000 or Ford C-900
- Drivetrain: 4x2
- Pump Panel Style: Side-mount or Top-Mount
- Pump Style: mid-mount transverse
- Pump: Hale, 500gpm - 1000gpm
- Tank: 500, 750, or 1000 gallons
Protector III[]
- Chassis: Ford C
- Drivetrain: 4x2
- Pump Panel Style: Side-mount or Top-mount
- Pump Style: mid-mount transverse
- Pump: Hale
Protector IV[]
- Chassis: Hendrickson, Pemfab, Spartan, or Duplex
- Drivetrain: 4x2
- Pump Panel Style: Side-mount or Top-mount
- Pump Style: mid-mount transverse
- Pump: Hale, 1000gpm - 2000gpm
- Tank: 500, 750, or 1000 gallons