Product Overview

The 6661053 hydraulic cylinder seal kit is a factory-manufactured aftermarket replacement kit cross-referenced against the Bobcat part number 6661053. The current DJF page titles the kit as the swing cylinder seal kit for the Bobcat 231 excavator, and its page description adds the 943 skid steer loader to the application. Independent aftermarket catalogs (Hercules Sealing Products US/Canada, The O-Ring Store, PartsASAP and Zerk’s Plus) carry the number in a 1-1/2 in rod x 3 in bore configuration. Per-listing model and position wording differs slightly across the sources (the 943 model is named as LIFT in one catalog cluster, versus the swing wording used on the current page); both readings are documented in Fitment Verification rather than erased.

The swing cylinder rotates the upper structure of the compact excavator. This kit covers the sealing elements used to reseal that cylinder. DJF Seals manufactures and supplies the 6661053 kit at factory-direct wholesale pricing for Bobcat excavator dealers, repair shops and fleet maintenance programs.

Verified Application

The following application data was cross-checked against aftermarket parts listings and the Hercules Sealing Products catalog (herculesus.com / herculesca.ca):

Materials, pressure rating, temperature range, exact piece counts, certifications and service life are factory data and are not independently verified for this part number.

Replacement Scope

This kit covers the sealing elements required to reseal the swing cylinder of the Bobcat 231 compact excavator application. Kit contents vary between suppliers, so the exact component set is matched to your cylinder before shipment. Because listings also tie the number to the Bobcat 943 skid steer loader with different position wording, confirm the machine model and the cylinder position with the factory before ordering.

Fitment Verification

The part number, dimensions and application wording were cross-checked across the following sources:

• Hercules Sealing Products (herculesus.com / herculesca.ca): 6661053 with rod 1-1/2 in x bore 3 in; in this catalog cluster the 943 model is named with LIFT position wording.
• The O-Ring Store (theoringstore.com), PartsASAP and Zerk’s Plus (zerksplus.com): carry the same 6661053 number with the same 1-1/2 in rod x 3 in bore figures.
• Current DJF page: title/H1 “6661053: Hydraulic Cylinder Seal Kit for Bobcat Excavator 231 Swing”; the page meta text describes the kit as an aftermarket replacement for the Bobcat 231 excavator and the 943 skid steer loader.
• Machine reference: the Bobcat official product archive covers the 231 compact excavator, and the 943 is a skid steer loader in the Bobcat range — both machine classes appear in the source wording for this number.
• Conflict note: per-listing model and position wording differs slightly — the 943 model is listed as LIFT by the Hercules catalog cluster, while the current page uses swing wording for the 231 application. Both readings are presented side by side as they appear across the source set and are re-confirmed with the customer before shipment rather than one being erased.
• Materials, pressure, temperature, exact piece counts, certifications and service life are not independently verified.

Factory Inspection & Packing

Each 6661053 kit is assembled and checked at the DJF factory before packing. Sealing elements are placed in labeled poly bags marked with the part number, then packed into export cartons for protection during international shipping. Kits can be packed under DJF branding, neutral packaging, or your own private label for distribution.

Wholesale Ordering

DJF Seals supplies the 6661053 kit at factory-direct wholesale pricing for distributors, dealers and repair shops. To request a quotation, send your part number and quantity to [email protected] or [email protected]. OEM/ODM service, custom packaging and bulk container shipping are available for regular programs.

MOQ

MOQ: 5 kits.

FAQ

Q: Which machines does the 6661053 seal kit fit?
A: The current DJF page titles the kit for the Bobcat 231 compact excavator swing application, and its page description also adds the Bobcat 943 skid steer loader. Verify your machine model and serial number before ordering.

Q: Which cylinder does this kit service?
A: The swing cylinder, per the current page title for the Bobcat 231. One catalog cluster names the 943 model with LIFT position wording instead; both readings are documented, so confirm the cylinder position on your machine.

Q: What are the cylinder dimensions for this kit?
A: Rod 1-1/2 in x bore 3 in, per Hercules Sealing Products, The O-Ring Store, PartsASAP and Zerk’s Plus.

Q: Is the part number the same across all the listings?
A: Yes, the number 6661053 is consistent; the difference is in the model and position wording attached to it (231 swing on the current page versus 943 LIFT in one catalog cluster).

Q: What is the minimum order quantity?
A: MOQ: 5 kits.