null
CALL or TEXT (800) 909-7060

Folded Radiator Core for Caterpillar 621E, 966D, D7G & 3406B | 2W5540

SKU:
2W5540
FitsModel:
3406B, 3408, 3412, 572G, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 793C, 814B, 815B, 816B, 966D, D6H, D7G, D7H, D8N
ListDescription:
Folded Radiator Core
Folded Radiator Core for Caterpillar 621E, 966D, D7G & 3406B | 2W5540
Part # 2W5540

Fits Models At A Glance:

  • Caterpillar Wheel Tractor Scrapers: 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G
  • Caterpillar Dozers: D6H, D7G, D7H, D8N
  • Caterpillar Wheel Loaders & Compactors: 814B, 815B, 816B, 966D
  • Caterpillar Pipelayers: 572G
  • Caterpillar Engines & Mining Trucks: 3406B, 3408, 3412, 793C

Serial Number Notes:

  • 3406B: 11N00001-UP, 6TB00001-UP
  • 3408: 1EM00001-UP, 48W00001-UP, 67U00001-UP, 77M00001-UP
  • 3412: 38S00001-UP, 73W00001-UP
  • 572G: 16W00256-UP, 40U00411-UP, 8PC00361-UP
  • 621E: 6AB00001-UP, 6BB00001-UP
  • 621F: 4SK00001-UP, 5JK00001-UP, 8PL00001-UP, 9NL00001-UP, 6BK00001-UP
  • 621G: ALP00001-UP, ANG00001-UP
  • 623E: 6CB00001-UP, 6DB00001-UP
  • 623F: 5EW00001-UP, 3XW00001-UP
  • 623G: ARW00001-UP, AWB00001-UP
  • 627E: 6EB00001-UP, 6FB00001-UP, 6GB00001-UP, 6HB00001-UP, 3WJ00001-UP, 7CG00001-UP
  • 627F: 4YK00001-UP, 1DL00001-UP
  • 627G: AXF00001-UP, AYK00001-UP
  • 814B: 16Z00001-UP
  • 815B: 17Z00001-UP
  • 816B: 15Z00001-UP
  • 966D: 35S00001-UP, 94X00001-UP, 99Y00001-UP
  • D6H: 1FJ00001-UP, 1KD00001-UP, 2KD00001-UP, 2TG00001-UP, 3ED00001-UP, 3YG00001-UP, 3YJ00001-UP, 3ZF00001-UP, 4GG00001-UP, 4LG00001-UP, 4RC00001-UP, 4YF00001-UP, 5HF00001-UP, 6CF00001-UP, 6FC00001-UP, 7PC00001-UP, 8FC00001-UP, 8KB00001-UP, 8YC00001-UP
  • D7G: 35N00001-UP, 3GF00001-UP, 3ZD00001-UP, 44W00001-UP, 45W00001-UP, 4YB00001-UP, 64V00001-UP, 65V00001-UP, 72W00001-UP, 7MB00001-UP, 91V01917-UP, 92V00001-UP
  • D7H: 2RG00001-UP, 2SB00001-UP, 3XG00001-UP, 4AB00001-UP, 4FG00001-UP, 5BF00001-UP, 5WB00001-UP, 77Z00001-UP, 79Z00001-UP, 80Z00001-UP, 82Z00001-UP
  • D8N: 1XJ00001-UP, 5TJ00001-UP, 7TK00001-UP, 8WC00001-UP, 9TC00001-UP

Key Notes:

  • Part Number: 2W5540 (Caterpillar reference 2W-5540)
  • Type: Folded radiator core - core only, no tanks or frame
  • Dimensions: 1275 mm x 122 mm
  • Material: Alloy brass and alloy copper
  • Weight: 27.0 lbs.
  • Condition: Aftermarket replacement part
  • Application: Replaces the folded radiator core across Caterpillar 621E through 627G scrapers, D6H through D8N dozers, 814B through 966D machines, the 572G pipelayer and 3406B, 3408 and 3412 engines
  • Shipping Restrictions: Ships to the lower 48 US states only
  • Note: Core only - end tank seals, tanks, hoses and hardware are not included. IMPORTANT: Caterpillar also catalogues core 2W-5539 against the 627E, 627F and 627G, and publishes nothing to say which machine takes which. That core is 1092 mm long against 1275 mm here - measure before ordering if you run a 627. Caterpillar also lists this core against 16G and 16H graders. Ships LTL freight.

Common Use Case or Symptoms:

Fit this when a scraper, dozer or gen set engine has a core past cleaning - this one part number turns up across so many machines that a yard running mixed iron will find it fits more than one thing on the lot.

Why Choose Broken Tractor?

  • Broadest Folded Core Fitment: Scrapers, dozers, loaders, compactors, a pipelayer, mining trucks and three engine families on a single core.
  • Longer Than Its Near Twin: 1275 mm against the 1092 mm core Caterpillar also lists on the 627 scrapers - measuring is the only reliable way to choose.
  • Brass And Copper Throughout: Solderable construction, which is what keeps a core of this age serviceable rather than disposable.
$345.00

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.

Can’t Find What You’re Looking For?

Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.

1-800-909-7060 Parts Request Form

FEATURED PRODUCTS

Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please fill out our form, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! fill out our form to make a request here at Return Request Form and we would be pleased to help you.

Privacy Policy | Terms & Conditions

Building Quality Since 2006  |  Copyright © 2026 Broken Tractor LLC - All Rights Reserved


Product: Category: Brand: Head Title: 621G D7H 966D Folded Radiator Core | Broken Tractor | 2W5540