230-9357 Hydraulic Bucket Cylinder Seal Kit 2309357 Fits Caterpillar 416D, 416E, 420D, 420E, 430D, 430E, 446D, 450E
About the 230-9357 Seal Kit
This aftermarket hydraulic bucket cylinder seal kit is listed as part number 230-9357 (also written 2309357) for Caterpillar backhoe loaders. No official OEM cross-reference could be confirmed for this number in independent sources.
Because the number cannot be verified in the Caterpillar parts system, fitment and dimensions are confirmed per order before dispatch.

Verified Specifications
| Specification | Detail |
|---|---|
| Part Number | 230-9357 (also written 2309357) — as listed on page |
| Listed Application | Bucket cylinder of Caterpillar backhoe loaders (per page title) |
| Machine Models (listed) | 416D, 416E, 420D, 420E, 430D, 430E, 446D, 450E — as listed, confirm per model |
| Condition | New aftermarket replacement |
Fitment Verification
Send your machine serial number and the measured rod/bore of the bucket cylinder to [email protected] before ordering; we confirm the 230-9357 reference against your cylinder before dispatch.
Conflict note: The page title/URL lists Caterpillar backhoe loaders 416D-450E (bucket cylinder), but the original page body described a generic “20-30 ton excavator / wheel loader / bulldozer” kit — the two model sets do not match; fitment must be confirmed for the exact machine.
Replacement Scope
The kit covers the sealing elements needed to re-seal the bucket cylinder of a Caterpillar backhoe loader — dynamic rod and piston seals, wipers, wear rings, static O-rings and backup rings. Exact component types and quantities of the 230-9357 kit are confirmed with the factory before dispatch.
Factory Inspection & Packing
Each 230-9357 kit is inspected against the confirmed reference before packing: seal lips and surfaces are checked, the kit is packed to protect the seals from dust and moisture, and the carton label carries the part number and batch. Inspection photos or a packing list can be provided on request.
Wholesale Ordering
MOQ: 5 kits per part number.
We supply hydraulic cylinder seal kits factory-direct. The minimum order quantity for this kit is 5 kits per model. For the wholesale price list, packing details and lead time, email [email protected] or [email protected] with your target quantity and machine models.
FAQ
Q1: Is 230-9357 the original Caterpillar part number?
A1: We could not verify an official Caterpillar cross-reference for 230-9357 in independent sources. Please confirm the OEM number and the cylinder dimensions before ordering.
Q2: Which Caterpillar models does this kit fit?
A2: The page lists Caterpillar 416D, 416E, 420D, 420E, 430D, 430E, 446D and 450E backhoe loaders. Confirm fitment for your exact model and serial number with our engineers before ordering.
Q3: Can I order this seal kit wholesale?
A3: Yes. The MOQ is 5 kits per model. Email [email protected] or [email protected] for a factory-direct wholesale quote.
Aftermarket replacement part — not manufactured by or affiliated with Caterpillar Inc.. Fitment must be confirmed before ordering.






