Caterpillar publishes no replacement or superseding number for 184-3896.
1415722 (Caterpillar 141-5722) is the engine radiator core on these same 320B machines and is a different core in the same pack. Confirm which one you need.
Caterpillar lists these items alongside the same core, stocked separately: radiator water cock 093-5432, 49 mm upper hose 118-9848, 49 mm lower hose 118-9849, water lines gasket 5I-7572.
Key Notes:
Part Number: 1843896 (Caterpillar reference 184-3896)
Type: Oil cooler and radiator core - core only, no tanks or frame
Function: Sheds heat from the cooling pack into the airflow across finned tubes
Dimensions: 1080 mm x 356 mm
Weight: 91.0 lbs.
Condition: Aftermarket replacement part
Application: Replaces the oil cooler and radiator core on Caterpillar 320B and 320B L hydraulic excavators
Shipping Restrictions: Ships to the lower 48 US states only
Note: Core only - tanks, side frames, hoses, water cock and hardware are not included. Caterpillar titles this an oil cooler and radiator core, which is not the same part as the 320B engine radiator core, 1415722. Match the core you are removing by size before ordering. Ships LTL freight; inspect on arrival.
Common Use Case or Symptoms:
Reach for this when hydraulic temperature climbs through a long dig cycle, when the cooling pack is weeping at the tube ends, or when the fins have corroded through behind years of packed dust - a wide shallow core like this plugs from the face first and the machine loses cooling long before anything drips.
Why Choose Broken Tractor?
✅ Wide Shallow Core: At 1080 by 356 mm this core is far wider than it is tall, which is the quickest way to tell it from the engine radiator core on the same machine.
✅ Cooling Pack Not Just Coolant: Caterpillar names this an oil cooler and radiator core, so it carries oil heat as well as coolant heat out of the machine.
✅ Hoses Identified Separately: The 49 mm upper and lower hoses and the water cock are named in the listing, so a core change does not stall waiting on a hose.
$1,118.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
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