The Caterpillar 973K is a crawler loader designed for material handling, loading, dozing, and site preparation in construction, quarry, and industrial applications. It features a tracked undercarriage for traction and stability on soft or uneven ground, along with a front loader bucket for moving bulk material. The 973K is part of Caterpillar's crawler loader lineup and is commonly used for stockpiling, backfilling, and general earthmoving tasks. Its machine layout combines loader capability with crawler mobility, making it suitable for demanding jobsite conditions where wheel loaders may have limited performance.
Air Conditioning System
Caterpillar 973K Crawler Loader Air Conditioning System specifications
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.89 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.
All nonroad Tier 4 Interim and Final, Stage IIIB and IV 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 ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214). Cat DEO-ULS or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specification are required. Consult your OMM for further machine specific fuel re
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.