Machine models
Cat 977L and 983 specifications
| Listing-entry count |
|---|
| 2 |
| Publisher name | Source guide | Listing-entry count | Labels named by the source |
|---|---|---|---|
| Cat | 977L and 983 | 2 | 977L and 983 |
| Specification | 977L | 983 |
|---|---|---|
| Length With Bucket On Ground | 18.74 ft | 22.25 ft |
| Ground Clearance | 1.68 ft | 1.97 ft |
| Width To Outside Of Tracks | 7.85 ft | 9.52 ft |
| Clearance At Full Height And Dump | 10.6 ft | 11.98 ft |
| Reach At Dump Height | 3.91 ft | 7.09 ft |
| Length To Front Of Track | 13.26 ft | 15.16 ft |
| Specification | 977L |
|---|---|
| Height To Top Of Cab | 10.93 ft |
| Specification | 977L | 983 |
|---|---|---|
| Track Gauge | 75.99 in | 92.13 in |
| Length Of Track On Ground | 9.22 ft | 11.09 ft |
| Number Of Shoes Per Side | 39 | 42 |
| Number Of Track Rollers Per Side | 7 | 7 |
| Ground Contact Area | 3,999 in2 | 5,844 in2 |
| Track Shoe Width | 18 in | 22.05 in |
| Specification | 977L | 983 |
|---|---|---|
| Number Of Cylinders | 6 | 6 |
| Net Power | 190 hp | 275 hp |
| Power Measured @ | 1,950 rpm | 2,060 rpm |
| Aspiration | turbocharged | turbocharged |
| Displacement | 640.8 cu in | 891 cu in |
| Specification | 983 |
|---|---|
| Engine Model | D343 |
| Specification | 977L | 983 |
|---|---|---|
| Operating Weight | 47,642 lb | 71,650 lb |
| Fuel Capacity | 102 gal | 134.8 gal |
| Cooling System Fluid Capacity | 13 gal | 23 gal |
| Engine Oil Capacity | 7.3 gal | 10.9 gal |
| Final Drive Fluid Capacity - Each | 6.8 gal | 8.5 gal |
| Hydraulic System Fluid Capacity | 36.5 gal | 38.1 gal |
| Static Tipping Load | 31,989 lb | 48,680 lb |
| Breakout Force - Std Bucket | 34,160 lb | 43,850 lb |
| Bucket Capacity - Struck | 2.4 yd3 | 3.8 yd3 |
| Bucket Capacity - Heaped | 2.8 yd3 | 4.9 yd3 |
| Operating Voltage | 24 V | 24 V |
| Alternator Supplied Amperage | 19 amps | 19 amps |
| Max Speed | 7.1 mph | 7.4 mph |
| Specification | 977L | 983 |
|---|---|---|
| Raise Time | 7.8 sec | 7.7 sec |
| Dump Time | 1.6 sec | 1.4 sec |
| Lower Time | 3.4 sec | 3.2 sec |
| Specification | 983 |
|---|---|
| Pump Flow Capacity | 137.4 gpm |
| Relief Valve Pressure | 2,150 psi |
| Source guide | Differing-field count reported |
|---|---|
| 977L and 983 | 32 |
| Figure | 977L | 983 |
|---|---|---|
| Engine horsepower per 1,000 lb of weight | 4.0 | 3.8 |
| Fuel tank per engine horsepower | 0.54 gal | 0.49 gal |
| Figure | 983 |
|---|---|
| Pump flow per engine horsepower | 0.50 gpm |
Cat 977L and 983: track loader
Cat's listing for the 977L and 983 matches a track loader; see the Cat model reference.
| Forum index | Equipment class queried | Names in the search | Matching titles |
|---|---|---|---|
| Heavy Equipment Forums | track loader | Cat and the 977L, 983 | 35 |
| Title topic | Titles |
|---|---|
| hydraulics | 4 |
| overheating and cooling | 4 |
| fuel system | 2 |
| Topic in the title | Threads | Share of matching threads |
|---|---|---|
| hydraulics | 4 | 11% |
| overheating and cooling | 4 | 11% |
| fuel system | 2 | 6% |
- CAT 977l (Heavy Equipment Forums, 2026-09-04)
- 1971 CAT 977l Coolant In Hydraulic Oil (Heavy Equipment Forums, 2026-07-09)
- CAT 977l Overheated IT And Now Water In Cylinder 1 CAT 3306 Engine (Heavy Equipment Forums, 2026-03-26)
- Looking For The Year Of Mfg For My CAT 977l Sn 11k7373 (Heavy Equipment Forums, 2026-03-14)
| Observation date | Listing source | Equipment search | Listings |
|---|---|---|---|
| 2026-09-24 | MachineryTrader | Cat track loader | 9 |
| Model | Listed | Model years | Lowest asking | Highest asking | Median asking | Median hours |
|---|---|---|---|---|---|---|
| 977L | 9 | 1973 to 1980 | $12,000 | $42,188 | $16,250 | None shown |
| Search date | Database | Names queried | Search result |
|---|---|---|---|
| 2026-09-24 | U.S. Consumer Product Safety Commission | Cat together with the track loader 977L, 983 | No matching recall in this search |
| Evidence class | Document, classification and recorded date |
|---|---|
| Reference site |
|
| Reference site |
|
| Forum threads |
|
| Used-market listings |
|
| Federal agency data |
|
Cat 977L and 983: Configuration records
977L
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Length With Bucket On Ground | 18.74 ft |
| Width To Outside Of Tracks | 7.85 ft |
| Height To Top Of Cab | 10.93 ft |
| Clearance At Full Height And Dump | 10.6 ft |
| Reach At Dump Height | 3.91 ft |
| Length To Front Of Track | 13.26 ft |
| Undercarriage | |
| Track Gauge | 75.99 in |
| Number Of Shoes Per Side | 39 |
| Number Of Track Rollers Per Side | 7 |
| Ground Contact Area | 3,999 in2 |
| Track Shoe Width | 18 in |
| Engine | |
| Number Of Cylinders | 6 |
| Net Power | 190 hp |
| Power Measured @ | 1,950 rpm |
| Aspiration | turbocharged |
| Displacement | 640.8 cu in |
| Operational | |
| Fuel Capacity | 102 gal |
| Cooling System Fluid Capacity | 13 gal |
| Engine Oil Capacity | 7.3 gal |
| Final Drive Fluid Capacity - Each | 6.8 gal |
| Hydraulic System Fluid Capacity | 36.5 gal |
| Static Tipping Load | 31,989 lb |
| Breakout Force - Std Bucket | 34,160 lb |
| Bucket Capacity - Struck | 2.4 yd3 |
| Bucket Capacity - Heaped | 2.8 yd3 |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 19 amps |
| Max Speed | 7.1 mph |
| Hydraulic | |
| Raise Time | 7.8 sec |
| Dump Time | 1.6 sec |
| Lower Time | 3.4 sec |
| Additional specifications | |
| Ground Clearance | 1.68 ft |
| Length Of Track On Ground | 9.22 ft |
| Operating Weight | 47,642 lb |
| Machine Class — OEM classification of the base loader family. LGP configuration figures remain in their separately identified historical records; this citation does not certify every option or replacement part. | Track loader [source] |
983
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Length With Bucket On Ground | 22.25 ft |
| Width To Outside Of Tracks | 9.52 ft |
| Clearance At Full Height And Dump | 11.98 ft |
| Reach At Dump Height | 7.09 ft |
| Length To Front Of Track | 15.16 ft |
| Undercarriage | |
| Track Gauge | 92.13 in |
| Number Of Shoes Per Side | 42 |
| Number Of Track Rollers Per Side | 7 |
| Ground Contact Area | 5,844 in2 |
| Track Shoe Width | 22.05 in |
| Engine | |
| Number Of Cylinders | 6 |
| Net Power | 275 hp |
| Power Measured @ | 2,060 rpm |
| Aspiration | turbocharged |
| Displacement | 891 cu in |
| Engine Model | D343 |
| Operational | |
| Fuel Capacity | 134.8 gal |
| Cooling System Fluid Capacity | 23 gal |
| Engine Oil Capacity | 10.9 gal |
| Final Drive Fluid Capacity - Each | 8.5 gal |
| Hydraulic System Fluid Capacity | 38.1 gal |
| Static Tipping Load | 48,680 lb |
| Breakout Force - Std Bucket | 43,850 lb |
| Bucket Capacity - Struck | 3.8 yd3 |
| Bucket Capacity - Heaped | 4.9 yd3 |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 19 amps |
| Max Speed | 7.4 mph |
| Hydraulic | |
| Raise Time | 7.7 sec |
| Dump Time | 1.4 sec |
| Lower Time | 3.2 sec |
| Additional specifications | |
| Ground Clearance | 1.97 ft |
| Length Of Track On Ground | 11.09 ft |
| Operating Weight | 71,650 lb |
| Pump Flow Capacity | 137.4 gpm |
| Relief Valve Pressure | 2,150 psi |
| Machine Class — OEM classification of the base loader family. LGP configuration figures remain in their separately identified historical records; this citation does not certify every option or replacement part. | Track loader [source] |
Compare Cat 977L, 983
| Specification | 977L | 983 |
|---|---|---|
| Length With Bucket On Ground | 18.74 ft | 22.25 ft |
| Ground Clearance | 1.68 ft | 1.97 ft |
| Width To Outside Of Tracks | 7.85 ft | 9.52 ft |
| Clearance At Full Height And Dump | 10.6 ft | 11.98 ft |
| Reach At Dump Height | 3.91 ft | 7.09 ft |
| Length To Front Of Track | 13.26 ft | 15.16 ft |
| Specification | 977L | 983 |
|---|---|---|
| Track Gauge | 75.99 in | 92.13 in |
| Length Of Track On Ground | 9.22 ft | 11.09 ft |
| Number Of Shoes Per Side | 39 | 42 |
| Number Of Track Rollers Per Side | 7 | 7 |
| Ground Contact Area | 3,999 in2 | 5,844 in2 |
| Track Shoe Width | 18 in | 22.05 in |
| Specification | 977L | 983 |
|---|---|---|
| Number Of Cylinders | 6 | 6 |
| Net Power | 190 hp | 275 hp |
| Power Measured @ | 1,950 rpm | 2,060 rpm |
| Aspiration | turbocharged | turbocharged |
| Displacement | 640.8 cu in | 891 cu in |
| Specification | 977L | 983 |
|---|---|---|
| Operating Weight | 47,642 lb | 71,650 lb |
| Fuel Capacity | 102 gal | 134.8 gal |
| Cooling System Fluid Capacity | 13 gal | 23 gal |
| Engine Oil Capacity | 7.3 gal | 10.9 gal |
| Final Drive Fluid Capacity - Each | 6.8 gal | 8.5 gal |
| Hydraulic System Fluid Capacity | 36.5 gal | 38.1 gal |
| Static Tipping Load | 31,989 lb | 48,680 lb |
| Breakout Force - Std Bucket | 34,160 lb | 43,850 lb |
| Bucket Capacity - Struck | 2.4 yd3 | 3.8 yd3 |
| Bucket Capacity - Heaped | 2.8 yd3 | 4.9 yd3 |
| Operating Voltage | 24 V | 24 V |
| Alternator Supplied Amperage | 19 amps | 19 amps |
| Max Speed | 7.1 mph | 7.4 mph |
| Specification | 977L | 983 |
|---|---|---|
| Raise Time | 7.8 sec | 7.7 sec |
| Dump Time | 1.6 sec | 1.4 sec |
| Lower Time | 3.4 sec | 3.2 sec |
More in Cat: D6T XL–D7R Series II, D6T STD/WH XL: C9 controls/track arrangements, D7H–D7R WHA.