Princeton PiggyBack®
PB45.3+ STM
Princeton PB45.3+ STM Truck Mount Forklift
Perhaps the biggest news with the new PB45.3+ STM is the all new, technologically advanced, Tier 4 Final compliant engine.

The all-new Princeton PB45.3+ STM Forklift is our static mast machine that offers 4500 lbs of lifting capacity in a compact, yet powerful package. Available in standard or low-profile design, this versatile machine can deliver across all types of terrain and even into low overhead clearance areas. The PB45.3+ STM also has excellent stability. While weighing in at only about 4,500lbs, the all wheel drive and low center of gravity makes a machine that feels sure footed and rugged. The pantograph extension arm also allow partial one-side unloading. Even more impressive, the machine was designed to have a shorter overall length. The PB45.3+ can be configured to a 53” overhang which allows for mounting to even 48 foot-long trailers.

EPA Tier 4 Compliant Engine

Offering higher horsepower, higher torque, improved fuel consumption, and greater service intervals; the new power plant is the greatest leap forward in technology on this new truck-mounted forklift.

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Technical Specifications

Model: 
PB45.3+ STM - Standard
PB45.3+ STM - High Float
Type: 
STM
STM
Capacity @ 24” Load Center: 
4500 lbs
4500 lbs
Diesel Engine: 
25 HP
25 HP
Engine Emission Compliance: 
EPA Tier4 Final
EPA Tier4 Final
Maximum RPM: 
3000 RPM
3000 RPM
Electrical System: 
12 Volt
12 Volt
Drive Wheels: 
3
3
Steering: 
Hydrostatic
Hydrostatic
Tire Type: 
26 x 12 - 12 8-Ply (TG)
29 x 12.5 - 15 8-Ply (TG)
Tire Outside Diameter (Front/Rear): 
26" / 26"
29" / 29"
Tire Width (Front/Rear): 
12" / 12"
12.5" / 12.5"
Maximum Speed: 
7 mph
7.5 mph
Maximum Gradability: 
30%
30%
Turning Radius: 
77"
77"
Unladen Weight: 
4420 lbs
4420 lbs
Unladen Weight (Optional): 
4520 lbs
N/A
Working Pressure (Attachments): 
2500 psi
2500 psi
Tilt of Mast (Forward/Backward): 
8° / 7°
8° / 7°
Sideshift: 
5.5”
5.5”
Fork Section: 
48 x 4 x 1.75”
48 x 4 x 1.75”
Reach: 
39.25”
39.25”
Height To Top Of Canopy: 
82.5”
84”
Fork Carriage Width (Class): 
47.25” (III)
47.25” (III)
Frame Opening: 
63.5”
63.5”
Overall Width: 
97.25”
97.25”
Overhang: 
52.5”
52.5”
Wheelbase: 
63.75”
63.75”
Center of Gravity (From Fork Face): 
14.5”
14.5”
Lift Height: 
120" / 144"
120" / N/A
Mast Height - Collapsed: 
95” / 107”
96.5" / N/A
Mast Height - Raised: 
176.5” / 202”
178” / N/A
Ground Clearance: 
10"
11.5"
Face of Fork to Center of Front Tire: 
19"
19"
ANSI Standard: 
B56.6
B56.6