At a glance data:
Engine Power - 1,600 rpm ISO 14396:2002:
321hp
Engine Power - 1,600 rpm ISO 14396:2002:
325 hp (metric)
Engine Model:
Cat® C9.3B
Gross Power - 1,600 rpm SAE J1995:2014:
325hp
Overview
The Cat® 966 Wheel Loader is engineered for relentless productivity in the harshest environments—from rugged quarries to demanding construction and mining sites. Its smart systems and durable build keep you moving with fewer interruptions, while operator-focused features enhance safety and control. When the job gets tough, the 966 is tougher—ready to power through every load, every shift.
Category:
Medium Wheel Loaders
Category:
Medium Wheel Loaders
Brand:
Cat
Brand:
Cat
Engine
Engine Power - 1,600 rpm ISO 14396:2002:
321hp
Engine Power - 1,600 rpm ISO 14396:2002:
325 hp (metric)
Engine Model:
Cat® C9.3B
Gross Power - 1,600 rpm SAE J1995:2014:
325hp
Gross Power - 1,600 rpm SAE J1995:2014:
329 hp (metric)
Net Power - 1,600 rpm ISO 9249:2007, SAE J1349:2011:
302hp
Net Power - 1,600 rpm ISO 9249:2007, SAE J1349:2011:
302 hp (metric)
Engine Torque - 1,200 rpm ISO 14396:2002:
1313lbf·ft
Gross Torque - 1,200 rpm SAE J1995:2014:
1327lbf·ft
Net Torque - 1,200 rpm ISO 9249:2007, SAE J1349:2011:
1255lbf·ft
Displacement:
567.5in³
Emissions:
Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, China Nonroad Stage IV and Japan 2014 emission standards.
Biodiesel Capability:
Up to B20¹
Note (2):
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels**up to:
20% biodiesel FAME (fatty acid methyl ester)
***100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application.
Please consult your Cat dealer or "Caterpillar Machine Fluids Recommendations" (SEBU6250) for details.
*While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use.
**Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Weights
Operating Weight:
51124lb
Note:
Weight based on a machine configuration with Z-bar linkage, Bridgestone 26.5R25 VJT L3 radial tires, full fluids, operator, standard counterweight, ride control, cold start, roading fenders, Product Link™, front manual differential/open rear axles, powertrain guard, secondary steering, sound suppression, and a 4.2 m³ (5.5 yd³) general purpose bucket with BOCE.
Transmission
Forward - 1:
4.2mile/h
Forward - 2:
8.4mile/h
Forward - 3:
15mile/h
Forward - 4:
24.5mile/h
Reverse - 1:
4.5mile/h
Reverse - 2:
9.2mile/h
Reverse - 3:
16.5mile/h
Reverse - 4:
24.5mile/h
Note:
Maximum travel speed in standard vehicle with empty bucket and standard L3 tires with 849 mm (33 in) roll radius.
Sound
Operator Sound Pressure Level - ISO 6396:2008:
70dB(A)
Exterior Sound Power Level - ISO 6395:2008:
109dB(A)
Operator Sound Pressure Level - ISO 6396:2008 ¹:
69dB(A)
Exterior Sound Power Level - ISO 6395:2008²:
108dB(A)
Note (1):
¹Including countries that adopt the EU and UK Directives.
Note (2):
²Exterior Sound Power Level - European Union Directive 2000/14/EC and UK Noise Regulation 2001 No. 1701.
Air Conditioning System
Air Conditioning:
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas.
- If equipped with R134a (Global Warming Potential = 1430), the system contains 1.600 kg (3.5 lb) of refrigerant, which has a CO2 equivalent of 2.288 metric tonnes (2.522 tons).
- If equipped with R1234yf (Global Warming Potential = 0.501), the system contains 1.389 kg (3.1 lb) of refrigerant, which has a CO2 equivalent of .001 metric tonnes (1.10 tons).
Operating Specifications
Static Tipping Load - Full 37° Turn:
32727lb
Static Tipping Load - Full 37° Turn - No Tire Deflection:
35224lb
Breakout Force:
38999lbf
Note:
For a machine configuration as defined under “Weight.”
Note (1):
Full compliance to ISO 14397-1:2007 Sections 1 thru 6, which requires 2% verification between calculations and testing.
Service Refill Capacities
Fuel Tank:
80.1gal (US)
DEF Tank:
6.9gal (US)
Cooling System:
17.4gal (US)
Crankcase:
6.1gal (US)
Transmission:
15.5gal (US)
Differential - Final Drives - Front:
15.1gal (US)
Hydraulic Tank:
30.1gal (US)
Hydraulic System
Implement System - Maximum Pump Output at 2,275 rpm:
99gpm
Implement System - Maximum Operating Pressure:
4496psi
Hydraulic Cycle Time - Total:
10.1s
Dimensions - Standard Lift
Height - Top of Hood:
9.42ft
Height - Top of ROPS:
11.83ft
Ground Clearance:
1.33ft
Wheel Base:
11.67ft
Overall Length - Without Bucket:
24.33ft
Hinge Pin Height at Carry Height:
2ft
Hinge Pin Height at Maximum Lift:
13.92ft
Lift Arm Clearance at Maximum Lift:
12.08ft
Rack Back - Maximum Lift:
62°
Rack Back - Carry Height:
50°
Width over Tires (Loaded):
9.92ft
Tread Width:
7.25ft
Note:
All dimensions are approximate and based on machine equipped with 4.2 m³ (5.5 yd³) general purpose bucket with BOCE and Bridgestone 26.5R25 VJT L3 radial tires.
Dimensions - High Lift
Height - Top of Hood:
9.42ft
Height - Top of ROPS:
11.83ft
Ground Clearance:
1.33ft
Wheel Base:
11.67ft
Overall Length - Without Bucket:
26.5ft
Hinge Pin Height at Carry Height:
2.5ft
Hinge Pin Height at Maximum Lift:
15.75ft
Lift Arm Clearance at Maximum Lift:
13.67ft
Rack Back - Maximum Lift:
71°
Rack Back - Carry Height:
49°
Width over Tires (Loaded):
9.92ft
Tread Width:
7.25ft
Note:
All dimensions are approximate and based on machine equipped with 4.2 m³ (5.5 yd³) general purpose bucket with BOCE and Bridgestone 26.5R25 VJT L3 radial tires.
Dimensions - Standard Lift
Rack Back - Maximum Lift:
62 degrees
Dimensions - High Lift
Rack Back - Maximum Lift:
71 degrees
Sound
With Cooling Fan Speed at Maximum Value - Note:
Distance of 15 m (49.2 ft), moving forward in second gear ratio.
Dimensions - High Lift
Rack Back - Carry Height:
49 degrees
Engine
Gross Torque @ 1,200 rpm – SAE J1995:2014:
1327lb/ft
Engine Torque @ 1,200 rpm – ISO 14396:2002:
1313lb/ft
Dimensions - High Lift
Rack Back at Ground:
37 degrees
Engine
Note (3):
Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (hydrogenated vegetable oil) and GTL (gas-to- liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel.
Dimensions - Standard Lift
Rack Back - Carry Height:
50 degrees
Rack Back at Ground:
39 degrees
Engine
Displacement:
9.3 L
Hydraulic System
Hydraulic Cycle Time - Total:
10.1 seconds
Standard Equipment
note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
operator environment
- Cab, pressurized, sound suppression
- EH implement controls, parking brake
- Steering, joystick
- Seat, cloth, air suspension
- Touchscreen display
- Keypad, programmable buttons
- Air conditioner, heater, defroster (auto temp, fan)
- Sun visor, front and rear retractable
- Windows, front, laminated
powertrain
- Cat® C9.3B engine
- Electric fuel priming pump
- Fuel-water separator and secondary fuel filter
- Engine, air precleaner
- Axles, auto front differential lock
- Transmission, planetary, automatic powershift
- Torque converter with lock-up
- Service brakes, hydraulic, fully enclosed wet disc, wear indicators
- Integrated Braking System (IBS)
- Park brake, caliper on front axles, spring applied-pressure released
- Brake pedal neutralizer with decel function
electrical
- Starting and charging system, 24V
- Starter, electric, heavy duty
- Lights: halogen, 4 work lights, 2 front roading lights with turn signals, 2 rearview lights
hydraulics
- Implement system, load sensing with variable displacement piston pump
- Steering system, load sensing with dedicated variable displacement piston pump
- Ride control, dual accumulators
- Oil sampling valves, Cat XT hoses
linkage
- Standard lift, Z-bar
- Kickouts: lift and tilt
monitoring system
- Front dash with analog gauges, LCD display, and warning lights
- Primary touchscreen monitor (Cat Payload, quad screens, machine settings and messages)
- Maintenance reminders
onboard technologies
- Autodig with auto set tires
- Operator ID and machine security
- Application profiles
- Job aids
- Controls help and eOMM
- Cat Payload
- Key Features Inform
- Bucket Carry Display Widget
- Remote Flash
safety
- Seat belt reminder
- 2-point seat belt
- Rear vision camera
- Window cleaning platform, front
Optional Equipment
note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
operator environment
- Door, remote opening system
- Footrest
- HMU steering wheel
- Implement joystick (2V, 3V only)
- Entertainment radio (FM, AM, USB, BT)
- Entertainment radio (DAB+)
- CB radio ready
- Seat, suede/cloth, air suspension, heated
- Seat, leather/cloth, air suspension, heated/cooled
- Mirrors, heated
- Windows, front, heavy duty
- Full cab window guard
powertrain
- Turbine, air precleaner
- Radiator, high debris
- Cooling fan, reversible
- Axles, auto front and rear differential locks
- Axles, ecology drains, AOC ready, extreme temperature seals
- Axles, oil cooler
electrical
- Cold start, 120V or 240V
- Lights: LED
hydraulics
- 3rd and 4th auxiliary functions with ride control
- Quick coupler control
linkage
- High lift, Z-bar
monitoring system
- Tire pressure monitor
onboard technologies
- Cat Advanced Payload
- Cat Payload for Trade (Available in Europe and Australia. Country certifications vary. Contact your Cat dealer for more information.)
- Cat Payload Printer with E-ticket
safety
- 4-point seat belt (kit)
- Rear vision camera, dedicated
- Surround vision, dedicated
- Window cleaning platform, front
- Collision warning system
- Collision mitigation system
- Reverse strobe lights (Not compatible with roading arrangements)
- Warning beacon
- Secondary steering system, electrical (Standard where mandated)
- Wheel chocks
- Remote control
additional equipment
- Cat Autolube system
- Fenders, extensions or roading
- Guards: powertrain, crankcase, window glass, cylinders, rear
- Biodegradable hydraulic oil
- High-speed oil change system
- Rear cab access
- Single Life Cutting Edge GET
- Toolbox
special configurations
- Aggregate handler
- Waste and industrial
- Forestry
- Tunneling (Japan only)
- Corrosion resistant
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Gross Power - 1,600 rpm SAE J1995:2014:
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