Caterpillar publishes no replacement or superseding number for 141-5722.
1843896 (Caterpillar 184-3896) is the oil cooler and radiator core on these same 320B machines - a different core in the same cooling pack. Ordering by machine model alone will not separate the two; confirm which core is damaged.
Key Notes:
Part Number: 1415722 (Caterpillar reference 141-5722)
Type: Engine radiator core - core only, no tanks or frame
Function: Carries coolant through finned tubes and sheds engine heat into the airflow
Weight: 100.0 lbs.
Condition: Aftermarket replacement part
Application: Replaces the engine radiator core on Caterpillar 320B, 320B L, 320B N and 320B S hydraulic excavators
Shipping Restrictions: Ships to the lower 48 US states only
Note: Core only - tanks, side frames, hoses, cap, shroud and mounting hardware are not included, and a radiator shop is normally needed to transfer the tanks. Caterpillar publishes an 89.99 lb weight for this core against the supplier's 100 lbs. Ships LTL freight; inspect the fins and tube ends before signing for delivery.
Common Use Case or Symptoms:
Order this when the 320B runs hot with a clean fan and a good pump, when the core is leaking at a tube seam, or when the fins are eaten through from years of dust and washing - once a core is weeping, stop-leak buys a week and costs a water pump.
Why Choose Broken Tractor?
✅ Core Only By Design: A core is what a radiator shop actually replaces; the tanks off your old unit go back on, which is cheaper than a whole assembly.
✅ Two Cores On This Machine: The 320B carries both an engine radiator core and a separate oil cooler core, and this is the engine one.
✅ Weight Discrepancy Disclosed: Caterpillar and the supplier catalog disagree on this core's weight, and the listing says so rather than quietly picking one.
$1,788.00/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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