6804603: Hydraulic Cylinder Seal Kit for Bobcat Excavator 231 Arm
Product Overview
The 6804603 hydraulic cylinder seal kit is a factory-manufactured aftermarket replacement kit for the arm cylinder of the Bobcat 231 excavator. Hercules Sealing Products lists the kit as BCK-6804603 with a 1.750 in. rod x 3.000 in. bore and anchors its catalog rows to the Bobcat 331-family arm cylinder, extending to loader rows covering the 2400, 2410 and 943 machines; Amazon marketplace listings repeat the same rod and bore figures. The current DJF page titles the kit for the Bobcat excavator 231 arm, wording that matches the arm-cylinder position used across the aftermarket rows reviewed. The reference numbers 6587990 and 6804603-A appear on the current page only and are not asserted here (see Fitment Verification).
DJF Seals manufactures and supplies the 6804603 kit at factory-direct wholesale pricing for Bobcat equipment dealers, repair shops, rental fleets and fleet maintenance programs.
Verified Application
The following application data was cross-checked against aftermarket parts listings (Hercules Sealing Products, Amazon) and the current DJF product page:
| Part Number | 6804603 (Bobcat reference; sold as Hercules BCK-6804603; the current page also lists 6587990 and 6804603-A, which are not independently corroborated) |
| Product Type | Hydraulic cylinder seal kit (aftermarket replacement) |
| Cylinder Position | Arm cylinder — the current page titles the kit for the Bobcat excavator 231 arm; the Hercules BCK-6804603 rows anchor the Bobcat 331-family arm cylinder |
| Rod x Bore (per Hercules BCK-6804603 & Amazon) | 1.750 in. rod x 3.000 in. bore |
| Verified Fitments | Bobcat excavator arm cylinders — the Hercules BCK-6804603 rows anchor the 331 family and also list loader rows covering the 2400, 2410 and 943 machines (see Fitment Verification for the 231 vs 331 model wording) |
| Condition | New, aftermarket replacement |
Materials, pressure rating, temperature range, exact piece counts, certifications and service life are factory data and are not independently verified for this part number; such claims on the current page are not repeated here (see Fitment Verification).
Replacement Scope
This kit supplies the sealing elements needed to reseal the arm cylinder of the verified Bobcat machines. The Hercules BCK-6804603 rows anchor the Bobcat 331-family arm cylinder and extend to loader rows covering the 2400, 2410 and 943 machines, while the current page titles the kit for the Bobcat excavator 231 arm. Kit contents vary between suppliers, so the exact component set is matched to your cylinder before shipment.
Fitment Verification
The part number, cylinder position, fitments and dimensions above were cross-checked against the following sources:
- Hercules Sealing Products (herculesus.com, BCK-6804603): rod 1.750 in. x bore 3.000 in.; the catalog rows anchor the Bobcat 331-family arm cylinder and add loader rows covering the 2400, 2410 and 943 machines.
- Amazon marketplace listings: repeat the same 1.750 in. rod x 3.000 in. bore figures for the 6804603 kit.
- Current DJF page (6804603-hydraulic-cylinder-seal-kit-for-bobcat-excavator-231-arm): titles the kit for the Bobcat excavator 231 arm and uses the shared djf-hydraulic-seal-kit.jpg product image.
- Conflict note: model wording — the current page names the Bobcat 231 excavator, while the Hercules BCK-6804603 rows anchor the Bobcat 331-family arm cylinder. Both describe excavator arm-cylinder applications, and the wording difference is kept rather than silently resolved; confirm the machine model and cylinder before ordering.
- Conflict note: loader extension rows — the Hercules BCK-6804603 row set also covers loader applications for the 2400, 2410 and 943 machines in addition to the excavator arm rows; confirm your machine type and cylinder.
- Conflict note: page-only references — 6587990 and 6804603-A appear on the current page only and were not corroborated in the aftermarket listings reviewed, so they are not asserted above.
- Materials, pressure, temperature, exact piece counts, certifications and service life are not independently verified.
Factory Inspection & Packing
Each 6804603 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 6804603 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 6804603 seal kit fit?
A: The current DJF page titles the kit for the Bobcat excavator 231 arm, while the Hercules BCK-6804603 rows anchor the Bobcat 331-family arm cylinder and also list loader rows covering the 2400, 2410 and 943 machines. Check the machine model and cylinder before ordering.
Q: Which cylinder does it seal?
A: The arm cylinder. The current page wording is the Bobcat excavator 231 arm, and the independently reviewed Hercules rows anchor the Bobcat 331-family arm cylinder; the exact component set is matched to your cylinder before shipment.
Q: What are the rod and bore of this kit?
A: Hercules BCK-6804603 lists a 1.750 in. rod x 3.000 in. bore, and Amazon marketplace listings repeat the same figures, so the dimensions agree across the independent sources.
Q: Are 6587990 and 6804603-A the same kit?
A: These references appear on the current page only and were not corroborated in the aftermarket listings reviewed, so they are not asserted here. Confirm your cylinder reference before ordering.
Q: What is the minimum order quantity?
A: MOQ: 5 kits.
Bobcat Excavator Seal Kit
Bobcat Seal Kit
Bobcat 231 Seal Kit
6804603 Seal Kit
