Machine models

Cat 966K and 980K specifications

Entries in this reference
Listing-entry count
2

Short answer

Cat 966K and 980K: wheel loaders.

Selected configuration figures
Configuration	Documented field and quantity
966K	Net Power - ISO 9249 267 hp Operating Weight 53,311 lb
980K	Net Power - ISO 9249 369 hp Operating Weight 68,862 lb

966K and 980K specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Cat	966K and 980K	2	966K and 980K

Dimensions and weight
Specification	966K	980K
Ground Clearance	1.6 ft	1.45 ft
Length With Bucket On Ground	29.1 ft	31.08 ft
Width Over Tires	9.7 ft	10.58 ft
Height To Top Of Cab	11.8 ft	12.35 ft
Wheelbase	11.3 ft	12.17 ft

Specification	980K
Hinge Pin - Max Height	14.78 ft
Reach At Max Lift And Dump	5.08 ft

Engine
Specification	966K	980K
Number Of Cylinders	6	6
Engine Model	C11 ACERT	C15 ACERT
Net Power	262 hp	369 hp
Gross Power	286 hp	355 hp
Power Measured @	1,800 rpm	1,800 rpm
Displacement	568 cu in	762.8 cu in
Bore	4.5 in	5.1 in
Stroke	5.9 in	6.2 in
Net Power - ISO 9249	267 hp	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269	267 hp	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269 - Metric	271 hp	373 hp

Specification	966K
Torque Measured @	1,400 rpm
Aspiration	TURBOCHARGED
Torque Rise	38 %
Peak Gross Torque - 1,400 Rpm - SAE J1995	1,006 lb-ft
Peak Net Torque - 1,400 Rpm - SAE J1349	940 lb-ft
Maximum Net Power - 1,800 Rpm - ISO 9249	267 hp
Maximum Net Power - 1,800 Rpm - SAE J1349	267 hp
Maximum Net Power - 1,800 Rpm - ISO 9249 - Metric	271 hp
Maximum Net Power - 1,800 Rpm - SAE J1349 - Metric	271 hp
Maximum Gross Power - 1,800 Rpm - SAE J1995	296 hp
Maximum Gross Power - 1,800 Rpm - SAE J1995 - Metric	302 hp

Specification	980K
Max Torque	1,191 lb-ft
Maximum Net Power - 1,600 Rpm - ISO 9249 - Metric	373 hp
Maximum Net Power - 1,600 Rpm - SAE J1349 - Metric	373 hp
Maximum Net Power - 1,600 Rpm - SAE J1349	369 hp
Maximum Net Power - 1,600 Rpm - ISO 9249	369 hp
Peak Gross Torque - 1,300 Rpm - SAE J1995	1,541 lb-ft
Maximum Gross Power - 1,600 Rpm - SAE J1995	406 hp
Peak Net Torque - 1,200 Rpm - SAE J1349	1,445 lb-ft
Maximum Gross Power - 1,600 Rpm - SAE J1995 - Metric	412 hp
Power - ISO 14396	402 hp
Maximum Gross Power - ISO 14396	402 hp
Maximum Gross Power - ISO 14396 (Metric)	408 hp

Operational
Specification	966K	980K
Operating Weight	52,254 lb	66,489 lb
Fuel Capacity	100.4 gal	127 gal
Hydraulic System Fluid Capacity	29 gal	66 gal
Engine Oil Fluid Capacity	9.3 gal	10 gal
Cooling System Fluid Capacity	10.3 gal	22 gal
Transmission Fluid Capacity	11.6 gal	16 gal
Front Axle/Diff Fluid Capacity	16.9 gal	23 gal
Rear Axle/Diff Fluid Capacity	16.9 gal	23 gal
Static Tipping Weight	38,354 lb	50,201 lb
Turning Radius	24.2 ft	26.1 ft
Operating Voltage	24 V	24 V
Alternator Supplied Amperage	80 amps	80 amps
Rear Axle Oscillation	26 degrees	26 degrees
Tire Size	25	29.5-25

Transmission and speeds
Specification	966K	980K
Transmission Type	POWERSHIFT	Powershift
Number Of Forward Gears	4	4
Number Of Reverse Gears	4	4
Max Speed - Forward	23.2 mph	22.6 mph
Max Speed - Reverse	23.2 mph	25.8 mph

Specification	966K
Forward - 1	4.2 mph
Forward - 2	7.8 mph
Forward - 3	13.9 mph
Forward - 4	23.2 mph
Reverse - 1	4.9 mph
Reverse - 2	8.5 mph
Reverse - 3	14.6 mph
Reverse - 4	23.9 mph

Specification	980K
Standard Torque Converter - Forward 1	4.2 mph
Standard Torque Converter - Forward 2	7.5 mph
Standard Torque Converter - Forward 3	13.4 mph
Standard Torque Converter - Forward 4	23.5 mph
Standard Torque Converter - Reverse 1	4.8 mph
Standard Torque Converter - Reverse 2	8.6 mph
Standard Torque Converter - Reverse 3	15.2 mph
Standard Torque Converter - Reverse 4	26.6 mph
Lockup Torque Converter - Forward 1	4.3 mph
Lockup Torque Converter - Forward 2	8.1 mph
Lockup Torque Converter - Forward 3	14.3 mph
Lockup Torque Converter - Forward 4	25.3 mph
Lockup Torque Converter - Reverse 1	4.9 mph
Lockup Torque Converter - Reverse 2	9.2 mph
Lockup Torque Converter - Reverse 3	16.2 mph
Lockup Torque Converter - Reverse 4	24.9 mph

Weights
Specification	966K	980K
Operating Weight	53,311 lb	68,862 lb

Tires
Specification	966K	980K
Tires	Choices	Choices

Specification	980K
Note (1)	Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model
Note (2)	Other special tires are available on request
Choices (1)	29.5R25 VMT BS L3 Radial; 29.5R25 XHA2 MX L3 Radial; 29.5R25 VSDL BS L5 Radial
Choices (2)	29.5R25 XLDD2 MX L5 Radial; 29.5R25 X MINE D2 MX L5 Radial
Note (3)	In certain applications, the loader's productive capabilities might exceed the tires' tonnes-km/h (ton-mph) capabilities

Buckets
Specification	966K	980K
Bucket Capacities	2.50 m3-9.20 m3 (3.25 yd3-12.00 yd3)	4.00 to 12.20 m3 (5.25 to 16.00 yd3)

Hydraulic System
Specification	966K	980K
Relief Valve Setting	1,000 psi	3,000 psi
Pump Flow Capacity	80.6 gpm	123 gpm
Raise Time	5.9 sec	6 sec
Dump Time	1.6 sec	2.1 sec
Lower Time	2.4 sec	3.4 sec
Pump Type	PISTON	Gear
Hydraulic Cycle Time - Total	9.8 s	11.4 s
Implement System - Maximum Operating Pressure	4,496 psi	4,496 psi
Hydraulic Cycle Time - Lower, Empty, Float Down	2.4 s	3.3 s
Steering System - Pump Type	Piston	Piston
Hydraulic Cycle Time - Raise From Carry Position	5.9 s	6.4 s
Hydraulic Cycle Time - Dump, At Maximum Raise	1.5 s	1.7 s
Implement System - Optional 3rd Function Maximum Flow	79.3 gpm	79.3 gpm
Implement System - Optional 3rd Function Maximum Pressure	3,000 psi	3,000 psi

Specification	966K
Implement System - Maximum Pump Output At 2,275 Rpm	90 gpm

Specification	980K
Implement System - Maximum Pump Output At 2,200 Rpm	121.5 gpm

Axles
Specification	966K	980K
Front	Fixed	Fixed
Rear	Oscillating ?13 degrees	Oscillating ?13 degrees
Maximum Single-Wheel Rise And Fall	19.5 in	21.6 in

Brakes
Specification	966K	980K
Brakes	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards

Operating Specifications
Specification	966K	980K
Breakout Force	38,984 lb	53,548 lb
Static Tipping Load - Full 37 Degrees Turn - ISO 14397-1*	32,259 lb	42,464 lb
Static Tipping Load - Full 37 Degrees Turn - Rigid Tires**	34,886 lb	45,148 lb

Service Refill Capacities
Specification	966K	980K
Cooling System	17.2 gal	16.6 gal
Crankcase	6.5 gal	9.8 gal
Hydraulic Tank	52.3 gal	44.9 gal
Fuel Tank - Standard	101 gal	118.1 gal
Transmission	13.2 gal	17.4 gal
Differential - Final Drives - Front	16.9 gal	22.2 gal
Differential - Final Drives - Rear	16.9 gal	22.2 gal

Sound
Specification	966K	980K
Standards	Standards	Standards

Specification	980K
Pressure Level	The dynamic operator sound pressure level for a standard machine is 72 dB(A) with a cooling fan speed set at 70% of max value
Power Level	The sound power level that is labeled on the machine is 109 LWA

Cab
Specification	966K	980K
ROPS/FOPS	Meets SAE and ISO standards	Meets SAE and ISO standards

Bucket
Specification	980K
Dump Clearance At Max Raise	10.83 ft
Bucket Capacity - Heaped	5.5 yd3
Bucket Capacity - Struck	4.78 yd3
Bucket Width	11.59 ft
Breakout Force	61,425 lb

Variants — Source comparison annotation
Source guide	Differing-field count reported
966K and 980K	114

Ratios
Figure	966K	980K
Engine horsepower per 1,000 lb of weight	5.0	5.5
Pump flow per engine horsepower	0.31 gpm	0.33 gpm
Fuel tank per engine horsepower	0.38 gal	0.34 gal

966K and 980K: owner reports

Sources: 3 forum discussions about the Caterpillar 966 wheel loaders (966C, 966G, 966H); heavyequipmentforums.com.

Cat: Transmission and hydraulic pump problems.

Sources: 3 forum discussions about the Caterpillar 980 wheel loaders (980C, 980G); heavyequipmentforums.com.

Cat: Hydraulics, pinion seal leak and parking brake.

966K and 980K: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	wheel loader	Cat and the 966K, 980K	9

Topics named by those titles
Title topic	Titles
brakes and steering	2

Topic in the title	Threads	Share of matching threads
brakes and steering	2	22%

CAT 980k Steering Code (Heavy Equipment Forums, 2021-05-04)
CAT 980k No Steering (Heavy Equipment Forums, 2020-06-12)
CAT 980k Auto Greaser (Heavy Equipment Forums, 2019-08-30)
Anyone With Experince Around CAT 966k And 972k Loaders (Heavy Equipment Forums, 2016-02-12)

Used market for the 966K and 980K — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Cat wheel loader	70

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
966K	37	2011 to 2016	$40,878	$379,336	$112,000	9,051
980K	33	2011 to 2020	$59,500	$298,000	$105,000	14,353

966K and 980K: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Cat together with the wheel loader 966K, 980K	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Cat 966K — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Cat 980K — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat 966K and 980K — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Caterpillar 966 wheel loaders (966C, 966G, 966H) — Heavyequipmentforums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Cat 966K — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Cat — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Cat 966K and 980K: Configuration records

966K

Specification	Source figure
Engine
Net Power - ISO 9249	267 hp
Displacement	568 cu in
Engine Model	C11 ACERT
Bore	4.5 in
Stroke	5.9 in
Number Of Cylinders	6
Gross Power	286 hp
Power Measured @	1,800 rpm
Net Power	262 hp
Torque Measured @	1,400 rpm
Aspiration	TURBOCHARGED
Torque Rise	38 %
Peak Gross Torque - 1,400 Rpm - SAE J1995	1,006 lb-ft
Peak Net Torque - 1,400 Rpm - SAE J1349	940 lb-ft
Maximum Net Power - 1,800 Rpm - ISO 9249	267 hp
Maximum Net Power - 1,800 Rpm - SAE J1349	267 hp
Maximum Net Power - 1,800 Rpm - ISO 9249 - Metric	271 hp
Maximum Net Power - 1,800 Rpm - SAE J1349 - Metric	271 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269	267 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269 - Metric	271 hp
Maximum Gross Power - 1,800 Rpm - SAE J1995	296 hp
Maximum Gross Power - 1,800 Rpm - SAE J1995 - Metric	302 hp
Buckets
Bucket Capacities	2.50 m3-9.20 m3 (3.25 yd3-12.00 yd3)
Transmission and speeds
Reverse - 3	14.6 mph
Forward - 3	13.9 mph
Forward - 1	4.2 mph
Forward - 2	7.8 mph
Forward - 4	23.2 mph
Reverse - 2	8.5 mph
Reverse - 1	4.9 mph
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23.2 mph
Max Speed - Reverse	23.2 mph
Reverse - 4	23.9 mph
Transmission Type	POWERSHIFT
Hydraulic System
Steering System - Pump Type	Piston
Raise Time	5.9 sec
Dump Time	1.6 sec
Lower Time	2.4 sec
Hydraulic Cycle Time - Total	9.8 s
Hydraulic Cycle Time - Lower, Empty, Float Down	2.4 s
Relief Valve Setting	1,000 psi
Pump Flow Capacity	80.6 gpm
Pump Type	PISTON
Implement System - Maximum Operating Pressure	4,496 psi
Hydraulic Cycle Time - Raise From Carry Position	5.9 s
Implement System - Optional 3rd Function Maximum Flow	79.3 gpm
Implement System - Optional 3rd Function Maximum Pressure	3,000 psi
Implement System - Maximum Pump Output At 2,275 Rpm	90 gpm
Service Refill Capacities
Transmission	13.2 gal
Cooling System	17.2 gal
Differential - Final Drives - Rear	16.9 gal
Differential - Final Drives - Front	16.9 gal
Crankcase	6.5 gal
Hydraulic Tank	52.3 gal
Fuel Tank - Standard	101 gal
Sound
Standards	Standards
Dimensions and weight
Length With Bucket On Ground	29.1 ft
Width Over Tires	9.7 ft
Height To Top Of Cab	11.8 ft
Wheelbase	11.3 ft
Operating Specifications
Static Tipping Load - Full 37 Degrees Turn - ISO 14397-1*	32,259 lb
Static Tipping Load - Full 37 Degrees Turn - Rigid Tires**	34,886 lb
Cab
ROPS/FOPS	Meets SAE and ISO standards
Operational
Fuel Capacity	100.4 gal
Hydraulic System Fluid Capacity	29 gal
Static Tipping Weight	38,354 lb
Engine Oil Fluid Capacity	9.3 gal
Cooling System Fluid Capacity	10.3 gal
Transmission Fluid Capacity	11.6 gal
Front Axle/Diff Fluid Capacity	16.9 gal
Rear Axle/Diff Fluid Capacity	16.9 gal
Turning Radius	24.2 ft
Operating Voltage	24 V
Alternator Supplied Amperage	80 amps
Rear Axle Oscillation	26 degrees
Tire Size	25
Axles
Front	Fixed
Rear	Oscillating ?13 degrees
Maximum Single-Wheel Rise And Fall	19.5 in
Additional specifications
Operating Weight	53,311 lb
Hydraulic Cycle Time - Dump, At Maximum Raise	1.5 s
Ground Clearance	1.6 ft
Breakout Force	38,984 lb
Tires	Choices
Brakes	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards

Source

980K

Specification	Source figure
Engine
Net Power - ISO 9249	369 hp
Displacement	762.8 cu in
Engine Model	C15 ACERT
Bore	5.1 in
Stroke	6.2 in
Number Of Cylinders	6
Gross Power	355 hp
Power Measured @	1,800 rpm
Net Power	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269 - Metric	373 hp
Max Torque	1,191 lb-ft
Maximum Net Power - 1,600 Rpm - ISO 9249 - Metric	373 hp
Maximum Net Power - 1,600 Rpm - SAE J1349 - Metric	373 hp
Maximum Net Power - 1,600 Rpm - SAE J1349	369 hp
Maximum Net Power - 1,600 Rpm - ISO 9249	369 hp
Peak Gross Torque - 1,300 Rpm - SAE J1995	1,541 lb-ft
Maximum Gross Power - 1,600 Rpm - SAE J1995	406 hp
Peak Net Torque - 1,200 Rpm - SAE J1349	1,445 lb-ft
Maximum Gross Power - 1,600 Rpm - SAE J1995 - Metric	412 hp
Power - ISO 14396	402 hp
Maximum Gross Power - ISO 14396	402 hp
Maximum Gross Power - ISO 14396 (Metric)	408 hp
Buckets
Bucket Capacities	4.00 to 12.20 m3 (5.25 to 16.00 yd3)
Transmission and speeds
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	22.6 mph
Max Speed - Reverse	25.8 mph
Transmission Type	Powershift
Standard Torque Converter - Forward 1	4.2 mph
Standard Torque Converter - Forward 2	7.5 mph
Standard Torque Converter - Forward 3	13.4 mph
Standard Torque Converter - Forward 4	23.5 mph
Standard Torque Converter - Reverse 1	4.8 mph
Standard Torque Converter - Reverse 2	8.6 mph
Standard Torque Converter - Reverse 3	15.2 mph
Standard Torque Converter - Reverse 4	26.6 mph
Lockup Torque Converter - Forward 1	4.3 mph
Lockup Torque Converter - Forward 2	8.1 mph
Lockup Torque Converter - Forward 3	14.3 mph
Lockup Torque Converter - Forward 4	25.3 mph
Lockup Torque Converter - Reverse 1	4.9 mph
Lockup Torque Converter - Reverse 2	9.2 mph
Lockup Torque Converter - Reverse 3	16.2 mph
Lockup Torque Converter - Reverse 4	24.9 mph
Hydraulic System
Steering System - Pump Type	Piston
Raise Time	6 sec
Dump Time	2.1 sec
Lower Time	3.4 sec
Hydraulic Cycle Time - Total	11.4 s
Hydraulic Cycle Time - Lower, Empty, Float Down	3.3 s
Relief Valve Setting	3,000 psi
Pump Flow Capacity	123 gpm
Pump Type	Gear
Implement System - Maximum Operating Pressure	4,496 psi
Hydraulic Cycle Time - Raise From Carry Position	6.4 s
Implement System - Optional 3rd Function Maximum Flow	79.3 gpm
Implement System - Optional 3rd Function Maximum Pressure	3,000 psi
Implement System - Maximum Pump Output At 2,200 Rpm	121.5 gpm
Service Refill Capacities
Transmission	17.4 gal
Cooling System	16.6 gal
Differential - Final Drives - Rear	22.2 gal
Differential - Final Drives - Front	22.2 gal
Crankcase	9.8 gal
Hydraulic Tank	44.9 gal
Fuel Tank - Standard	118.1 gal
Sound
Standards	Standards
Pressure Level	The dynamic operator sound pressure level for a standard machine is 72 dB(A) with a cooling fan speed set at 70% of max value
Power Level	The sound power level that is labeled on the machine is 109 LWA
Dimensions and weight
Length With Bucket On Ground	31.08 ft
Width Over Tires	10.58 ft
Height To Top Of Cab	12.35 ft
Reach At Max Lift And Dump	5.08 ft
Wheelbase	12.17 ft
Hinge Pin - Max Height	14.78 ft
Operating Specifications
Static Tipping Load - Full 37 Degrees Turn - ISO 14397-1*	42,464 lb
Static Tipping Load - Full 37 Degrees Turn - Rigid Tires**	45,148 lb
Cab
ROPS/FOPS	Meets SAE and ISO standards
Bucket
Dump Clearance At Max Raise	10.83 ft
Bucket Capacity - Heaped	5.5 yd3
Bucket Capacity - Struck	4.78 yd3
Operational
Fuel Capacity	127 gal
Hydraulic System Fluid Capacity	66 gal
Static Tipping Weight	50,201 lb
Engine Oil Fluid Capacity	10 gal
Cooling System Fluid Capacity	22 gal
Transmission Fluid Capacity	16 gal
Front Axle/Diff Fluid Capacity	23 gal
Rear Axle/Diff Fluid Capacity	23 gal
Turning Radius	26.1 ft
Operating Voltage	24 V
Alternator Supplied Amperage	80 amps
Rear Axle Oscillation	26 degrees
Tire Size	29.5-25
Axles
Front	Fixed
Rear	Oscillating ?13 degrees
Maximum Single-Wheel Rise And Fall	21.6 in
Tires
Note (1)	Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model
Note (2)	Other special tires are available on request
Choices (1)	29.5R25 VMT BS L3 Radial; 29.5R25 XHA2 MX L3 Radial; 29.5R25 VSDL BS L5 Radial
Choices (2)	29.5R25 XLDD2 MX L5 Radial; 29.5R25 X MINE D2 MX L5 Radial
Note (3)	In certain applications, the loader's productive capabilities might exceed the tires' tonnes-km/h (ton-mph) capabilities
Additional specifications
Operating Weight	68,862 lb
Hydraulic Cycle Time - Dump, At Maximum Raise	1.7 s
Ground Clearance	1.45 ft
Breakout Force	61,425 lb
Bucket Width	11.59 ft
Tires	Choices
Brakes	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards

Source

Compare Cat 966K, 980K

Dimensions and weight
Specification	966K	980K
Ground Clearance	1.6 ft	1.45 ft
Length With Bucket On Ground	29.1 ft	31.08 ft
Width Over Tires	9.7 ft	10.58 ft
Height To Top Of Cab	11.8 ft	12.35 ft
Wheelbase	11.3 ft	12.17 ft

Engine
Specification	966K	980K
Number Of Cylinders	6	6
Engine Model	C11 ACERT	C15 ACERT
Net Power	262 hp	369 hp
Gross Power	286 hp	355 hp
Power Measured @	1,800 rpm	1,800 rpm
Displacement	568 cu in	762.8 cu in
Bore	4.5 in	5.1 in
Stroke	5.9 in	6.2 in
Net Power - ISO 9249	267 hp	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269	267 hp	369 hp
Maximum Net Power - 1,800 Rpm - Eec 80/1269 - Metric	271 hp	373 hp

Operational
Specification	966K	980K
Fuel Capacity	100.4 gal	127 gal
Hydraulic System Fluid Capacity	29 gal	66 gal
Engine Oil Fluid Capacity	9.3 gal	10 gal
Cooling System Fluid Capacity	10.3 gal	22 gal
Transmission Fluid Capacity	11.6 gal	16 gal
Front Axle/Diff Fluid Capacity	16.9 gal	23 gal
Rear Axle/Diff Fluid Capacity	16.9 gal	23 gal
Static Tipping Weight	38,354 lb	50,201 lb
Turning Radius	24.2 ft	26.1 ft
Operating Voltage	24 V	24 V
Alternator Supplied Amperage	80 amps	80 amps
Rear Axle Oscillation	26 degrees	26 degrees
Tire Size	25	29.5-25

Transmission and speeds
Specification	966K	980K
Transmission Type	POWERSHIFT	Powershift
Number Of Forward Gears	4	4
Number Of Reverse Gears	4	4
Max Speed - Forward	23.2 mph	22.6 mph
Max Speed - Reverse	23.2 mph	25.8 mph

Weights
Specification	966K	980K
Operating Weight	53,311 lb	68,862 lb

Tires
Specification	966K	980K
Tires	Choices	Choices

Buckets
Specification	966K	980K
Bucket Capacities	2.50 m3-9.20 m3 (3.25 yd3-12.00 yd3)	4.00 to 12.20 m3 (5.25 to 16.00 yd3)

Hydraulic System
Specification	966K	980K
Relief Valve Setting	1,000 psi	3,000 psi
Pump Flow Capacity	80.6 gpm	123 gpm
Raise Time	5.9 sec	6 sec
Dump Time	1.6 sec	2.1 sec
Lower Time	2.4 sec	3.4 sec
Pump Type	PISTON	Gear
Hydraulic Cycle Time - Total	9.8 s	11.4 s
Implement System - Maximum Operating Pressure	4,496 psi	4,496 psi
Hydraulic Cycle Time - Lower, Empty, Float Down	2.4 s	3.3 s
Steering System - Pump Type	Piston	Piston
Hydraulic Cycle Time - Raise From Carry Position	5.9 s	6.4 s
Hydraulic Cycle Time - Dump, At Maximum Raise	1.5 s	1.7 s
Implement System - Optional 3rd Function Maximum Flow	79.3 gpm	79.3 gpm
Implement System - Optional 3rd Function Maximum Pressure	3,000 psi	3,000 psi

Axles
Specification	966K	980K
Front	Fixed	Fixed
Rear	Oscillating ?13 degrees	Oscillating ?13 degrees
Maximum Single-Wheel Rise And Fall	19.5 in	21.6 in

Brakes
Specification	966K	980K
Brakes	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards	Meet OSHA, SAE J1473 OCT90 and ISO 3450-1985 required standards

Operating Specifications
Specification	966K	980K
Static Tipping Load - Full 37 Degrees Turn - ISO 14397-1*	32,259 lb	42,464 lb
Static Tipping Load - Full 37 Degrees Turn - Rigid Tires**	34,886 lb	45,148 lb

Service Refill Capacities
Specification	966K	980K
Cooling System	17.2 gal	16.6 gal
Crankcase	6.5 gal	9.8 gal
Hydraulic Tank	52.3 gal	44.9 gal
Fuel Tank - Standard	101 gal	118.1 gal
Transmission	13.2 gal	17.4 gal
Differential - Final Drives - Front	16.9 gal	22.2 gal
Differential - Final Drives - Rear	16.9 gal	22.2 gal

Sound
Specification	966K	980K
Standards	Standards	Standards

Cab
Specification	966K	980K
ROPS/FOPS	Meets SAE and ISO standards	Meets SAE and ISO standards

Cat 966K and 980K specifications

966K and 980K: owner reports

Sources for this page

Cat 966K and 980K: Configuration records