Case CX330 Excavator Seal Kits & Cylinders

Case CX330 Excavator Seal Kits & Cylinders parts list
Fits Model	Description	Details	Price	Product Details
See Details	CX330, CX350	Bucket Cylinder	KSV1396	From $4,830.00	View Info
See Details	CX330	Arm Cylinder	KSV12530	From $6,075.00	View Info
See Details	CX330*, CX350B, CX350C	Dipper Arm Cylinder	LZ007320	$200.00	View Info
See Details	CX330*, CX350B, CX350C	Bucket Cylinder Seal Kit	LZ007310	$180.00	View Info
See Details	CX330*, CX350B, CX350C	Boom Cylinder Seal Kit	LZ007300	$283.00	View Info
See Details	CX330	Dipper Arm Cylinder Seal Kit	LZ00478	$123.00	View Info
See Details	CX330	Boom Cylinder Seal Kit	LZ00477	$98.00	View Info
See Details	CX330	Bucket Cylinder Seal Kit	LZ00476	$150.00	View Info

Hydraulic cylinder seal kits and complete cylinders for Case CX330 excavators, covering boom, dipper arm, and bucket applications with fitment extending across the CX350 series where noted.

Fits Models At A Glance

CX330 Series: CX330
CX350 Series: CX350, CX350B, CX350C

Key Notes

Seal Kits: Boom, dipper arm, and bucket cylinder seal kits available
Complete Cylinders: Arm and bucket cylinder assemblies ready to install
Cross Fitment: Select kits fit CX330, CX350B, and CX350C
Application: Repairs leaking rods and restores full hydraulic function

Why Choose Broken Tractor

✅ Fast shipping from two U.S. locations
✅ Correct fitment verified for each Case model
✅ Seal kits and full cylinders available together

Frequently Asked Questions

What seal kits are available for the Case CX330 excavator?

Broken Tractor carries boom, dipper arm, and bucket cylinder seal kits for the Case CX330. The CX330-specific kits are the bucket seal kit (SKU LZ00476), boom seal kit (SKU LZ00477), and dipper arm seal kit (SKU LZ00478). We also offer cross-fitment kits that cover the CX330 along with the CX350B and CX350C.

Do the CX330 seal kits also fit the CX350B and CX350C?

Select seal kits fit the CX330, CX350B, and CX350C. These include the boom cylinder seal kit (SKU LZ007300), the bucket cylinder seal kit (SKU LZ007310), and the dipper arm cylinder seal kit (SKU LZ007320). Because fitment can depend on your exact model and serial number, match the part number to your machine or confirm with our parts team before ordering.

Should I replace the whole cylinder or just the seal kit on my CX330?

A seal kit is the right choice when the cylinder body and rod are still in good shape and you are only fixing a leaking rod to restore full hydraulic function. If the cylinder is damaged or worn beyond a reseal, Broken Tractor offers complete assemblies, including an arm cylinder (SKU KSV12530) and a bucket cylinder (SKU KSV1396) for the CX330.

What complete hydraulic cylinders does Broken Tractor carry for the CX330?

We carry an arm cylinder for the Case CX330 (SKU KSV12530) and a bucket cylinder that fits the CX330 and CX350 (SKU KSV1396). These assemblies are built to install and restore full hydraulic function. Match the part number to your machine to confirm the correct fit.

How do I know which CX330 cylinder is leaking?

Leaks typically show up as hydraulic fluid on the rod or slow, drifting movement of the boom, dipper arm, or bucket. Once you identify the affected cylinder, choose the matching boom, dipper arm, or bucket seal kit for your model. If you are unsure which part fits your machine, call our parts team at (800) 909-7060.