Case WX120 Wheeled Excavator Filters

Case WX120 Wheeled Excavator Filters parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	W14B, W14C, 680H, 680K, 780, 860, 960, WX120, 688, 688B, 688P, 1102D, 1102PD, 5120, 5130, 5140, 5150, 5220, 5230, 5240	Secondary Air Filter		A189057	$100.00	View Info

Replacement engine air filters for the Case WX120 wheeled excavator, covering secondary air filtration elements that protect the engine intake from dust and debris in demanding job site conditions.

Fits Models At A Glance

WX Series: WX120

Key Notes

Application: Secondary engine air filtration for the WX120 intake system
Part Type: Inner safety air filter element
Function: Protects engine against contaminants that bypass the primary filter
Fitment: Direct replacement for Case reference A189057

Why Choose Broken Tractor

✅ Verified fitment for Case WX120 wheeled excavators
✅ Fast shipping from two US locations
✅ Knowledgeable support for filter selection

Frequently Asked Questions

What air filter fits a Case WX120 wheeled excavator?

The secondary engine air filter A189057 fits the Case WX120 wheeled excavator. It is an inner safety air filter element that serves as a direct replacement for Case reference A189057. Broken Tractor verifies fitment for the WX120 before you buy.

What does the secondary air filter on the Case WX120 do?

The secondary air filter is an inner safety element that protects the engine against contaminants that bypass the primary air filter. It guards the WX120 intake system from dust and debris in demanding job site conditions. Replacing it on schedule helps keep grit out of the engine intake.

Is the A189057 an inner or outer air filter for the Case WX120?

The A189057 is the inner safety air filter element, meaning it is the secondary filter that sits behind the primary. It provides a second layer of engine intake protection on the WX120. If you are also replacing the primary element, confirm the correct part number with our parts team.

How do I confirm the right filter for my Case WX120?

Match your machine to Case reference A189057, which is the secondary engine air filter Broken Tractor carries for the WX120. Since fitment can vary by serial number, matching the part number is the surest way to confirm. Our knowledgeable support team can help with filter selection at (800) 909-7060.