JCB Backhoe Coolant Expansion Tank

JCB Backhoe Reservoir Tank

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	3CX, 4CX, JS200, JS220, JS330, JS360, JS460, 407ZX, 408ZX, 409, 409ZX, 411, 412S, 416, 2155, 2170	Coolant Expansion Tank	331/34633	$104.00	View Info

Coolant expansion tanks and coolant reservoir replacements for JCB backhoe loaders, covering the 3CX and 4CX series machines across multiple generations of use. These tanks maintain proper coolant system pressure and fluid levels, helping prevent overheating and engine damage in demanding job site conditions.

Fits Models At A Glance

3CX / 4CX Series: 3CX, 4CX

Key Notes

Application: Coolant expansion and overflow reservoir for backhoe loader cooling systems
Part Reference: OEM-equivalent coolant expansion tank; cross-references to JCB part 331/34633
Condition: New replacement units available for direct swap fitment
Compatibility Tip: Verify chassis serial number before ordering to confirm correct tank configuration

Why Choose Broken Tractor

✅ OEM-matched fitment for JCB backhoe cooling systems
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
✅ Experienced parts team ready to verify compatibility