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973K Track Loader

973K Track Loader

At a Glance

Flywheel Power
275 HP
Operating Weight
63900 lb
Capacity - General Purpose
4.2 yd³
Engine Model
Cat C9.3
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Save money and transport time with one rugged machine for land clearing, digging, grading, truck loading, slope work and more. Crawler loaders give you reduced ground pressure and better traction so you can start the job earlier and work longer in soft underfoot conditions. Purpose-built Waste Handler, Steel Mill and Low Ground Pressure configurations stand up to the toughest applications. This new generation of Cat® Track Loaders brings you all of this, plus improved performance and fuel efficiency.
For complete machine specifications and available configurations, please see your Cat dealer or visit


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Flywheel Power 275HP
Engine Model Cat C9.3
Net Power - ISO 9249/SAE J1349 275HP
Net Power - ISO 9249/SAE J1349 (DIN) 278HP
Emissions U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final), Korea Tier 4 Final OR China Nonroad Stage III/UN ECE R96 Stage IIIA emission standards, equivalent to Tier 3/Stage IIIA
Note (1) All nonroad Tier 4 Interim and Final, Stage IIIB, IV and V, Japan 2014 (Tier 4 Final) and Korea Tier 4 Final diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) with 15 ppm (mg/kg) of sulfur or less, or up to B20 biodiesel blended with
Note (2) Diesel Exhaust Fluid (DEF) used in Cat Selective Catalytic Reduction (SCR) systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241.


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Operating Weight 63900lb
Operating Weight - Wide Gauge 71218lb
Operating Weight - Waste Handler 64319lb
Operating Weight - Steel Mill 74293lb
Note (1) Subtract approximately 295 kg / 650 lb for machines not equipped with Tier 4 Final/Stage V emissions reduction technology.


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Capacity - General Purpose 4.2yd³
Capacity - Multi-Purpose 4yd³
Capacity - Performance Series 5yd³
Capacity - Landfill 6.4yd³
Capacity - Slag 4yd³
Width - General Purpose 117in
Width - Multi-Purpose 116in
Width - Performance Series 117in
Width - Landfill 117in
Width - Slag 112in

Service Refill Capacities

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Fuel Tank 101.5gal (US)
DEF Tank 9.2gal (US)


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Overall Machine Length* 298.4in
Machine Height - Top of Cab 138.2in
Height - Top of Stack 120.8in
Overall Machine Height - Bucket Fully Raised 226.5in
Overall Machine Width without Bucket: With Standard Tracks - 550 mm (21.6 in) Shoes 106.7in
Note *With General Purpose bucket and heavy duty teeth.


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Track Gauge 85in
Track Shoe Width - Standard 21.6in
Track Shoe Width - Optional 26.6in
Track Shoe Width - Wide Gauge 32.7in
Track on Ground 115.3in
Ground Contact Area* - Standard Shoe - 550 mm (21.6 in) 5673in²
Ground Contact Area* - Optional Shoe - 675 mm (26.6 in) 6960in²
Ground Contact Area* - Wide Gauge - 830 mm (32.7 in) 8572in²
Ground Pressure* - Standard Shoe - 550 mm (21.6 in) 11.3psi
Ground Pressure* - Optional Shoe - 675 mm (26.6 in) 9.3psi
Ground Pressure* - Wide Gauge - 830 mm (32.7 in) 8.3psi
Note *ISO 16754:2008.

Air Conditioning System

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Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.1 kg of refrigerant which has a CO2 equivalent of 1.573 metric tonnes.