Coolant Expansion Tank for Bobcat A770, S510–S850, T550–T870 – 7137747

Part # 7137747

Fits Models At A Glance:

• Bobcat All-Wheel Steer Loaders: A770
• Bobcat Skid Steer Loaders: S510, S530, S550, S570, S590, S595, S630, S650, S750, S770, S850
• Bobcat Compact Track Loaders: T550, T590, T595, T630, T650, T750, T770, T870
• Bobcat Telehandlers: TL360, TL470, TL470HF

Key Notes:

• Part Number: 7137747
• Type: Coolant expansion / overflow tank (plastic reservoir)
• Function: Absorbs excess coolant and minimizes pressure in the engine cooling system, reducing coolant hammer and protecting the system from thermal stress
• Companion Part: Water coolant tank cap (6733429) sold separately
• Application: Coolant expansion reservoir for the engine cooling system on the Bobcat loader and telehandler models listed above
• Note: Parts can vary by serial number — verify against your machine before ordering

Common Use Case or Symptoms: Use when the tank is cracked, leaking coolant, or discolored and brittle from heat — a failed expansion tank can't manage cooling-system pressure, leading to coolant loss and overheating.

Why Choose Broken Tractor:

• ✅ Protects the Cooling System – absorbs excess coolant and reduces pressure spikes and coolant hammer
• ✅ Direct-Fit for the M-Series and Telehandler Lineup – matched to the A770, S510–S850, and T550–T870 platforms
• ✅ Fast Shipping from a U.S.-Based Team – in-stock and ready to ship from our U.S. warehouses