Folded Radiator Core for Caterpillar D6D Dozers | 2W5537

Fits Models At A Glance:

• Caterpillar Dozers: D6D

Serial Number Notes:

• D6D: 01Y00001-UP, 03X00001-UP, 04X00001-UP, 05X00001-UP, 06X00001-UP, 19B00400-UP, 32X00001-UP, 38C00100-UP

Key Notes:

• Part Number: 2W5537 (Caterpillar reference 2W-5537)
• Type: Folded radiator core - core only, no tanks or frame
• Material: Alloy copper and alloy brass
• Weight: 24.0 lbs.
• Condition: Aftermarket replacement part
• Application: Replaces the folded radiator core on the Caterpillar D6D dozer
• Shipping Restrictions: Ships to the lower 48 US states only
• Note: Core only - end tank seals, tanks, hoses and hardware are not included. Caterpillar's record for this number is minimal: an abbreviated title, no description, no dimensions and no related parts on file. Measure the core being removed and compare before ordering. Caterpillar also catalogues it against the 140, 141 and 143 hydraulic controls. Ships LTL freight.

Common Use Case or Symptoms:

Fit this when a D6D is running hot and the core will not take another cleaning - these machines are old enough that the radiator is usually the last original part in the cooling system, and no thermostat or water pump fixes a plugged core.

Why Choose Broken Tractor?

• ✅ D6D Specific: Catalogued to one dozer, where most cores in this section span half a dozen machines - narrow usually means an exact fit.
• ✅ Traditional Copper Build: Copper and brass throughout, which is what a radiator shop needs if the core is ever to be repaired rather than replaced.
• ✅ Data Gap Stated Plainly: Caterpillar publishes no dimensions for this number and the listing says so, rather than borrowing figures from a core that looks similar.