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Folded Radiator Core for Caterpillar D5H Dozers & 3406B Engines | 4W4146

SKU:
4W4146
FitsModel:
3406B, D5H, D5HTSK II
ListDescription:
Folded Radiator Core
Folded Radiator Core for Caterpillar D5H Dozers & 3406B Engines | 4W4146
Part # 4W4146

Fits Models At A Glance:

  • Caterpillar Dozers: D5H
  • Caterpillar Track Skidders: D5HTSK II
  • Caterpillar Gen Set & Industrial Engines: 3406B

Serial Number Notes:

  • 3406B: 11N00001-UP, 6TB00001-UP
  • D5H: 1DD00001-UP, 1YD00001-UP, 2SD00001-UP, 3MD00001-UP, 4KD00001-UP, 7NC00001-UP, 8RC00001-UP, 8SC00001-UP, 9HC00001-UP
  • D5HTSK II: 7EG00001-UP

Key Notes:

  • Part Number: 4W4146 (Caterpillar reference 4W-4146)
  • Type: Folded radiator core - core only, no tanks or frame
  • Construction: Folded structure for a larger heat transfer surface area
  • Air Flow: 29.8 kg per minute, maximum air pressure drop 0.13 kPa
  • Water Flow: 30 litres per minute
  • Material: Alloy copper and alloy brass
  • Weight: 22.0 lbs.
  • Condition: Aftermarket replacement part
  • Application: Replaces the folded radiator core on Caterpillar D5H dozers, the D5HTSK II track skidder and 3406B gen set and industrial engines
  • Shipping Restrictions: Ships to the lower 48 US states only
  • Note: Core only - end tank seals, tanks, cap, thermostat and hardware are not included. Caterpillar publishes no dimensions for this core, only its flow figures and material, so measure the core being removed before ordering. Caterpillar also catalogues it against 5A, 5P and 5S bulldozers and the SR4 generator. Ships LTL freight.

Common Use Case or Symptoms:

Fit this when a D5H runs hot with a clean pack, or when a 3406B gen set starts creeping up on temperature under continuous load - a stationary engine holds one steady heat output for hours, which finds a weak core faster than intermittent machine work does.

Why Choose Broken Tractor?

  • ✅ Flow Figures On Record: 29.8 kg per minute of air and 30 litres per minute of water, with a published pressure drop - a full thermal picture most cores here do not have.
  • ✅ Machines And Gen Sets: D5H dozers and D5HTSK II skidders alongside 3406B gen set and industrial engines with the SR4 generator.
  • ✅ Cheapest Core In The Section: The lowest cost core in the whole radiator catalog, and copper and brass throughout at that.
$224.00

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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Product: Category: Brand: Head Title: D5H 3406B Folded Radiator Core | Broken Tractor | 4W4146