The Cat® 966 XE Wheel Loader is built to move more while burning less. Designed for tough jobs across construction, mining, and industrial sites, it delivers powerful performance with smart systems—including a continuously variable transmission (CVT)—that streamline every pass. Operator-focused features help to enhance safety and control, while fewer service stops and strong dealer support keep your crew productive and your operation ahead of schedule.
| Engine Power - 1,600 rpm ISO 14396:2002 | — |
| Operating Weight | — |
| Engine Power - 1,600 rpm ISO 14396:2002 | 325 hp (metric) |
| Engine Power - 1,600 rpm ISO 14396:2002 | — |
| Engine Power - 1,600 rpm ISO 14396:2002 | 325 hp (metric) |
| Engine Model | Cat® C9.3B |
| Gross Power - 1,600 rpm SAE J1995:2014 | — |
| Gross Power - 1,600 rpm SAE J1995:2014 | 329 hp (metric) |
| Net Power - 1,600 rpm ISO 9249:2007, SAE J1349:2011 | — |
| Net Power - 1,600 rpm ISO 9249:2007, SAE J1349:2011 | 302 hp (metric) |
| Engine Torque - 1,200 rpm ISO 14396:2002 | — |
| Gross Torque - 1,200 rpm SAE J1995:2014 | — |
| Net Torque - 1,200 rpm ISO 9249:2007, SAE J1349:2011 | — |
| Displacement | — |
| 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 (1) | The net power advertised is the power available at the flywheel when the engine is equipped with fan, alternator, air cleaner, and aftertreatment. |
| 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). |
| Displacement | 9.3 L |
| Engine Torque @ 1,200 rpm – ISO 14396:2002 | — |
| Gross Torque @ 1,200 rpm – SAE J1995:2014 | — |
| 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. |
| Operating Weight | — |
| Note | Weight based on a machine configuration with 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. |
| Forward - 1 | — |
| Forward - 2 | — |
| Forward - 3 | — |
| Forward - 4 | — |
| Reverse - 1 | — |
| Reverse - 2 | — |
| Reverse - 3 | — |
| Note | Maximum travel speed in standard vehicle with empty bucket and standard L3 tires with 849 mm (33 in) roll radius. |
| Operator Sound Pressure Level - ISO 6396:2008 | — |
| Exterior Sound Power Level - ISO 6395:2008 | — |
| Operator Sound Pressure Level - ISO 6396:2008 ¹ | — |
| Exterior Sound Power Level - ISO 6395:2008² | — |
| 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. |
| With Cooling Fan Speed at Maximum Value - Note | Distance of 15 m (49.2 ft), moving forward in second gear ratio. |
| 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). |
| Static Tipping Load - Full 37° Turn | — |
| Static Tipping Load - Full 37° Turn - No Tire Deflection | — |
| Breakout Force | — |
| Note (2) | Full compliance to ISO 14397-1:2007 Sections 1 thru 6, which requires 2% verification between calculations and testing. |
| Note (1) | For a machine configuration as defined under “Weight.” |
| Fuel Tank | — |
| DEF Tank | — |
| Cooling System | — |
| Crankcase | — |
| Transmission | — |
| Differential - Final Drives - Front | — |
| Differential - Final Drives - Rear | — |
| Hydraulic Tank | — |
| Implement System - Maximum Operating Pressure | — |
| Hydraulic Cycle Time - Total | — |
| Hydraulic Cycle Time - Total | 10.1 seconds |
| Height - Top of Hood | — |
| Height - Top of ROPS | — |
| Ground Clearance | — |
| Wheel Base | — |
| Overall Length - Without Bucket | — |
| Hinge Pin Height at Carry Height | — |
| Hinge Pin Height at Maximum Lift | — |
| Lift Arm Clearance at Maximum Lift | — |
| Rack Back - Maximum Lift | — |
| Rack Back - Carry Height | — |
| Width over Tires (Loaded) | — |
| Tread Width | — |
| 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. |
| Rack Back at Ground | 40 degrees |
| Rack Back - Maximum Lift | 62 degrees |
| Rack Back - Carry Height | 50 degrees |
| Height - Top of Hood | — |
| Height - Top of ROPS | — |
| Ground Clearance | — |
| Wheel Base | — |
| Overall Length - Without Bucket | — |
| Hinge Pin Height at Carry Height | — |
| Hinge Pin Height at Maximum Lift | — |
| Lift Arm Clearance at Maximum Lift | — |
| Rack Back - Maximum Lift | — |
| Rack Back - Carry Height | — |
| Width over Tires (Loaded) | — |
| Tread Width | — |
| 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. |
| Rack Back - Carry Height | 49 degrees |
| Rack Back - Maximum Lift | 71 degrees |
| Rack Back at Ground | 37 degrees |
Data not available.