The Weiler B457 track feller buncher models have the latest Cat® C9.3 engine that produces 298 hp (222 kw) and meets U.S. EPA Tier 4 Final emission standards. A Tier 3 engine option is also available.  The B457 is a non-leveling model best suited for plantation thinning, biomass harvesting, and medium-production select or clear-cut applications; The B457  provide a leading combination of lift capacity, swing torque, and drawbar. Multi-function performance is achieved through dedicated pumps and optimized circuit configurations.  In addition, a standard or heavy counterweight option is available for a diversity of harvesting conditions. Unobstructed ground clearance enables unimpeded travel over stumps, rocks, and other debris.


Excellent multi-function capability through dedicated hydraulic pumps and optimized circuit configurations.  Innovative ease-of-use features, such as the ability to reduce the frequency of foot pedal motions, improves operator efficiency.


Enchanced stability and travel speeds, along with a powerful combination of lift capacity, swing torque, and tractive effort provides for maximum performance, which allows machine to excel in applications from thinning to final fell.


Elevated, unobstructed carbody with 33” (832 mm) of ground clearance enables unimpeded travel over rocks, stumps, and other debris.  Angle between carbody and roller frames allows maximum clearance across the width of the carbody.


New cab maximizes operator experience through increased space, improved visibility, easier access, and options that include a heated and cooled seat, deluxe lights, and cameras.  Machine controls feature an easy to use operator interface.


Forestry-duty cooling package and extensive validation of key common components that includes the engine, swing system, and grease-lubricated Cat® 336 HD HEX undercarriage ensure machine uptime and reduce operating costs.


Counterweight walkway enables machine level access to gull-wing engine enclosure that provides unmatched serviceability of components.  Enclosure provides a flat area to complete preventative maintenance and service

Engine Model (US & Canada) Cat® C9.3 Tier 4 Final
Engine Model (Outside US & Canada) Cat® C9.3 Tier 3
Gross Power 298 hp (222 kW)
Engine Displacement 568 in³ (9.3 L)
Weight w/out Head (US & Canada) 67,020 lb (30 400 kg)
Weight w/out Head (Outside US & Canada) 66,270 lb (30 060 kg)
Maximum Flow 322 gpm (1220 L/min)
Max. Reach (w/ 201 saw) 27’ 4” (8.32 m)
Lift at Max. Reach (no head) 13,918 lb (6313 kg)
Tractive Effort 68,848 lbf (31 229 kgf)
Undercarriage Size 336 HD HEX
Undercarriage Pitch 8.5” (216 mm)
Ground Clearance 33” (832 mm)
Track Gauge 102” (2580 mm)
Track Length 192” (4868 mm)
Fuel Tank Capacity 216 gal (819 L)
Engine Oil Capacity 10.6 gal (40 L)
Hydraulic System Capacity 79.8 gal (302 L)
Transport Width 10’ 11” (3.32 m)
Height 11’ 3” (3.42 m)
Length (boom ext., w/201 saw) 34’ 6” (10.51 m)
Length (boom tuck., no head) 27’ 6” (8.39 m)
Base configuration includes standard feller buncher boom and stick, and 24” (600 mm) single grouser shoes.