Case 590SL, 590SM, 590SN Brakes

Case 590SL, 590SM, 590SN Brakes parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	590SL, 590SM, 380B	Brake O-Ring (9.984 in ID)		238-8274	$14.00	View Info

Replacement brake parts for Case 590 Super L, 590 Super M, and 590 Super N backhoe loaders, including the brake housing O-ring that seals the brake housing assembly.

Fits Models At A Glance

590SL Series: 590 Super L
590SM Series: 590 Super M
590SN Series: 590 Super N

Key Notes

Part Type: Brake housing O-rings that seal the brake housing on 590 Super series backhoes
Size: Large diameter seal with a 9.984 inch inside diameter
Application: Brake service, resealing, and repair of leaks at the brake housing
Fitment: Listed fitment covers the 590SL and 590SM, so 590SN owners should confirm the part number before ordering

Why Choose Broken Tractor

✅ Parts team familiar with Case backhoe brake systems
✅ Fast shipping from Louisiana and Ohio locations
✅ Clear part numbers make matching fitment simple

Frequently Asked Questions

What size is the brake housing O-ring on a Case 590 Super M?

The brake housing O-ring for the Case 590 Super M has a 9.984 inch inside diameter and is part number 238-8274. The same O-ring also fits the Case 590 Super L. Matching the part number is the easiest way to confirm the correct seal.

Why is my Case 590 Super L leaking at the brake housing?

A worn, hardened, or damaged brake housing O-ring is one common cause of leaks at the brake housing on a Case 590 Super L. Once the seal stops holding, fluid can seep out where the housing joins the axle. Replacing the O-ring during brake service is the usual fix for this type of leak.

Does the brake housing O-ring fit a Case 590 Super N?

The listed fitment for the 238-8274 brake housing O-ring covers the 590 Super L and 590 Super M. Brake components can change between models and serial number ranges, so 590 Super N owners should confirm fitment before ordering. Call our parts team at (800) 909-7060 for help matching the right part.

Should I replace the brake housing O-ring when servicing the brakes on a Case 590SL?

Yes, replacing the brake housing O-ring is recommended any time the brake housing is opened on a Case 590SL. A reused O-ring may not seal properly after it has been compressed and disturbed. Broken Tractor carries the replacement O-ring so the housing can be resealed during brake work.