Cat Backhoe Boom Cylinders & Seal Kits

Cat Backhoe Boom Cylinders

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	416	Boom Cylinder (3 1/4" Barrel ID, 1 7/8" Rod OD)	0	9T5219	$1,544.00	View Info
	See Details	416B, 416C, 416D	Boom Cylinder (4 1/2" Barrel ID, 2 3/8" Rod OD")	0	6E0274	From $1,710.00	View Info
	See Details	420D	Boom Cylinder	152-9148	From $1,814.00	View Info
	See Details	416	Seal Kit (Boom Cylinder)	0	645355	$85.00	View Info
	See Details	416B, 416C	Seal Kit (Boom Cylinder)	0	703391	$99.00	View Info
	See Details	420D	Seal Kit	0	703397	$115.00	View Info

Boom cylinders and boom cylinder seal kits for Caterpillar backhoe loaders, covering both complete cylinder assemblies and rebuild seal kits across the 416 and 420 series machines. Whether you need a direct replacement cylinder or a seal kit to restore an existing unit, these parts address the most common boom hydraulic failures on Cat backhoes.

Fits Models At A Glance

416 Series: 416, 416B, 416C, 416D
420 Series: 420D

Key Notes

Part Types Available: Complete boom cylinder assemblies and seal kits for rebuild applications
Seal Kit Coverage: Kits available for 416, 416B, 416C, and 420D boom cylinders
Application: Boom lift circuit on Cat backhoe loaders; controls main boom raise and lower movement
Fitment Tip: Confirm series and generation (B, C, D suffix) before ordering — seal kits are generation-specific

Why Choose Broken Tractor

✅ Cat backhoe parts sourced for accurate fitment
✅ Both assemblies and seal kits available here
✅ Fast shipping from Baton Rouge and Kimbolton