Skip to product information
12_ccd300d6-1f88-44aa-ab49-7abfd24bf85a - Northline Parts

6682991 Radiator for Bobcat MT52 MT55 MT85 MT100 Mini Loaders

SKU: NLT2O04981
$388.99 In Stock
$388.99
Sale price  $388.99 Regular price 
Ships for free in 2–4 business days.
Restore engine cooling on Bobcat MT52, MT55, MT85, and MT100 mini track loaders with an aftermarket radiator replacing 6682991.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Bobcat MT52
  • Bobcat MT55
  • Bobcat MT85
  • Bobcat MT100

Product Overview

A leaking core, crushed fins, internal scaling, or a radiator packed with jobsite debris can make a mini loader overheat whenever the hydraulic and engine load climb. This replacement heat exchanger puts a serviceable core back into machines using Bobcat number 6682991.

Overheating is not always the radiator. Check airflow, fan operation, cap, thermostat, coolant quality, hoses, and engine condition, then compare ports, mounts, and overall dimensions before installation.

This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.

Key Features & Performance

  • Complete water radiator / heat exchanger
  • Replaces Bobcat 6682991
  • Aluminum construction as listed
  • For four MT-series mini track loader models

Replaces Part Numbers

  • 6682991

Common Uses

  • Replacing a leaking radiator core
  • Repairing impact or vibration damage
  • Correcting overheating caused by restricted internal flow
  • Restoring cooling after fins are too damaged to clean

Technical Specifications

  • Product Type: Engine coolant radiator
  • Material: Aluminum, as listed
  • Application: Bobcat mini track loader
  • Replacement Type: Aftermarket

Installation & Fitment

  • Let the machine cool and drain coolant safely
  • Compare hose ports, mounting tabs, and dimensions
  • Clean the fan and surrounding cooling package
  • Replace weak hoses and inspect the cap and thermostat
  • Refill with specified coolant, bleed air, and test under load

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.

Frequently Asked Questions

Q: Does 6682991 fit the MT100? A: Multiple current listings identify MT52, MT55, MT85, and MT100, but the machine serial number should still be checked.

Q: Can clogged exterior fins cause overheating? A: Yes. Dust and debris can block airflow even when the radiator does not leak.

Q: Should I use plain water? A: Use the coolant mixture specified for the machine and local climate.

Part Summary

keywords: Bobcat 6682991 radiator, MT52 cooling replacement, MT55 water radiator, MT85 overheating repair, MT100 heat exchanger, aftermarket Bobcat mini loader radiator

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

Customers also purchased