Folded Radiator Core for Caterpillar 777, 797 Trucks & 776 Tractors | 7W2173

Fits Models At A Glance:

• Caterpillar Off-Highway & Mining Trucks: 777, 777B, 777C, 777D, 797, 797B
• Caterpillar Wheel Tractors: 776B, 776C, 776D

Serial Number Notes:

• 776D: AFS00001-UP, AGC00001-UP
• 777B: 6JY00001-UP, 4YC00001-UP
• 777D: 2YW00001-UP
• 797: 5YW00001-UP
• 797B: JSM00001-UP

Key Notes:

• Part Number: 7W2173 (Caterpillar reference 7W-2173)
• Type: Folded radiator core - core only, no tanks or frame
• Dimensions: 1759 mm x 121 mm
• Material: Alloy copper and alloy brass
• Weight: 40.0 lbs.
• Condition: Aftermarket replacement part
• Application: Replaces the folded radiator core on Caterpillar 777 through 797B mining trucks and 776B through 776D wheel tractors
• Shipping Restrictions: Ships to the lower 48 US states only
• Note: Core only - end tank seals, gaskets, pressure relief valve and hardware are not included. IMPORTANT: Caterpillar publishes the same 1759 mm x 121 mm size for core 7W-9541, which fits 3500 series engines and the D11N. The materials differ - this core is copper and brass, that one carries no copper - and the machine lists do not overlap. Ships LTL freight.

Common Use Case or Symptoms:

Order these when a haul truck loses cooling on a long grade, or when a core section is weeping at the tube ends - a truck cycling a pit all shift runs its cooling pack at full load on every climb, which is the duty that finishes a core.

Why Choose Broken Tractor?

• ✅ Copper And Brass Core: Genuine copper and brass construction, which a radiator shop can solder rather than condemn - and the published difference from the same-sized 7W-9541.
• ✅ Nine Trucks And Tractors: 777 through 797B mining trucks with the 776B, 776C and 776D wheel tractors on one core.
• ✅ Forty Pound Section: Manageable on a machine this size, which is the whole argument for a sectional cooling pack on a haul truck.