High-durability O-ring seal for excavator hydraulics; CAT 123-2003 replacement.
OEM Compatibility: Direct replacement for Caterpillar part number 123-2003.
Premium Material: Made from oil- and pressure-resistant NBR/fluororubber.
Versatile Fit: Applicable in hydraulic cylinders, pumps, and valve blocks.
Leak-Proof Seal: Maintains stable system pressure with minimal wear.
Ideal for Spare Part Kits: Frequently used in overhaul and maintenance kits.
The YNF16676 O-ring (OEM Ref: 123-2003) is an essential sealing component widely used in excavator hydraulic systems. Manufactured with high-grade rubber materials like NBR or FKM depending on usage requirements, this O-ring ensures tight sealing against oil leaks under high pressure and fluctuating temperatures. It’s designed for exact compatibility with CAT equipment and is ideal for sealing pump ends, valve blocks, fittings, and cylinder joints. Suitable for repair kits and inventory stocking, this compact yet critical part is vital for maintaining hydraulic efficiency in heavy machinery.
| Item | Description |
|---|---|
| Part Number | 123-2003 |
| YNF Number | YNF16676 |
| Product Type | O-Ring / Hydraulic Seal |
| Material | NBR / FKM (based on application) |
| Function | Oil sealing in hydraulic systems |
| Compatibility | CAT equipment, hydraulic components |
| Application Area | Cylinders, pumps, valves |
| Brand | YNF |
| Country of Origin | China |
| MOQ | 10 pcs |
| Shipping Method | Express, Air, Sea |
| Payment Method | T/T, PayPal, L/C |
| Application Area | Description |
|---|---|
| Hydraulic cylinders | Rod and piston end sealing |
| Pump assemblies | Oil pressure sealing |
| Control valves | Prevents leakage between valve surfaces |
| Maintenance kits | Commonly stocked in excavator repair kits |
| Spare parts inventory | Bulk stocked for rebuild and field service |
Related Products:
O-ring kits for CAT excavators
Hydraulic pump seal kits
Cylinder piston and rod seals
FAQs:
Is this O-ring compatible with 330D hydraulic pumps? If it uses 123-2003, yes.
What temperature can this O-ring handle? NBR: -40120°C, FKM: -20200°C.
Do you offer O-ring sets or kits? Yes, ask for O-ring box or seal kit options.
Need a reliable seal to prevent hydraulic oil leaks? The YNF16676 O-ring is a precise match for 123-2003, designed to withstand pressure, heat, and oil corrosion in CAT equipment. Whether you’re assembling a repair kit or restocking warehouse inventory, this durable and cost-effective seal is your best option. Contact YNF Machinery today for competitive B2B pricing.
Get Fast Pricing & Specs Here.
Guangzhou Xiebang Machinery Co., Ltd | All Rights Reserved | sitemap
