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Case 521D Loader Seal Kits

Case 521D Loader Seal Kits parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	Case backhoe and loader models with hydraulic cylinders, All John Deere backhoe and loader models with hydraulic cylinders	Case Hydraulic Cylinder Rebuild Tool Kit		BT-CASE-CYL-TOOL-KIT	$96.00	View Info
	See Details	521D Before Serial # JEE0135500	Loader Bucket Cylinder Seal Kit		358013A1	$53.00	View Info
	See Details	521D, 521E, 521F, 521G, 521G2, 621D, 621E, 621F, 621G, 621G2, 651G	Loader Bucket Tilt Cylinder Seal Kit		87434291	$43.00	View Info
	See Details	521D, 521E, 521F	Lift Cylinder Seal Kit		360979A1	$58.00	View Info
	See Details	Case - Backhoes, Dozers, Loaders	Hydraulic Cylinder Spanner Wrench		CAS-1456A	$73.00	View Info
	See Details	Hydraulic Cylinders	Gland Seal Installation Tool Kit		CAS-1457	$34.00	View Info
	See Details	Case Backhoes, Dozers, Excavators, and Skid-Steers	Replacement Pin, Spanner Wrench		CAS-1456-PIN	$4.00	View Info

Hydraulic cylinder seal kits and rebuild tooling for the Case 521D wheel loader, covering lift cylinder and bucket tilt cylinder seals along with the spanner wrenches and gland installation tools needed to complete the job.

Fits Models At A Glance

521 Series: 521D, 521E, 521F
Serial Break Note: Some tilt cylinder kits fit 521D before serial number JEE0135500

Key Notes

Application: Loader lift and bucket tilt hydraulic cylinders
Kit Contents: Full seal, o-ring, and wiper sets for cylinder rebuilds
Tooling: Spanner wrenches, replacement pins, and gland seal installers available
Fitment: Verify by serial number, as tilt cylinder kits vary by build

Why Choose Broken Tractor

✅ Seal kits matched to Case 521D cylinders
✅ Rebuild tooling available to complete the job
✅ Fast shipping from two US locations

Frequently Asked Questions

What seal kits fit a Case 521D loader?

We carry both lift cylinder and bucket tilt cylinder seal kits for the 521D. The lift cylinder kit also covers the 521E and 521F, while tilt cylinder coverage depends on your machine's serial number.

Why does the 521D tilt cylinder seal kit depend on serial number?

Case changed the tilt cylinder build partway through production, so one kit fits 521D units before serial number JEE0135500. Match your serial number or the cylinder part number before ordering. If you are unsure, our parts team can help at (800) 909-7060.

Do I need special tools to rebuild a Case loader hydraulic cylinder?

Yes, a spanner wrench and gland seal installer make cylinder rebuilds far easier. Broken Tractor offers a Case cylinder rebuild tool kit with a spanner wrench and seal installer, plus a replacement spanner pin.

What is included in a Case 521D lift cylinder seal kit?

The lift cylinder seal kit includes the seals, o-rings, and wipers needed to rebuild the cylinder. Contents cover the piston and rod seals for a complete reseal.

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