5016704 2860113 501-6704 286-0113 Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit

What further sets the 5016704 and 2860113 kits apart is their "system-wide compatibility"—a focus on fitting the full range of arm, boom, and bucket cylinder sizes used in modern excavators and loaders. Unlike the 7079964230-series, which requires separate kits for different cylinder diameters, the 5016704 kit includes 8 interchangeable seal sizes (15mm–60mm inner diameter) and 4 adapter rings, covering 95% of arm cylinder models. The 2860113 kit goes even further, with 10 seal sizes and 6 adapter rings for boom and bucket cylinders, eliminating the need to stock multiple specialized kits. This versatility is a game-changer for rental companies, which often maintain fleets of mixed-make machines. A U.S.-based rental firm, for instance, uses 2860113 to service both its Komatsu PC360 excavators and Case 821G loaders, reducing maintenance time by 60% compared to using the 7079964230-series. Both kits also include detailed installation guides with model-specific torque settings, ensuring even entry-level technicians can achieve a leak-proof seal—critical for minimizing downtime in time-sensitive projects.

Quality testing is another area where 5016704, 2860113, 501-6704, and 286-0113 exceed industry standards. Each kit undergoes 3 rigorous trials: a 500-hour dust chamber test (simulating construction site conditions) for 5016704 and 501-6704; a 300-hour chemical immersion test (pH 1–14) for 2860113 and 286-0113; and a 1,000-cycle impact test (200kg force) for all four part numbers. These tests ensure the seals meet ISO 18797 (heavy-duty hydraulic seal standards) and outperform the 7079964230-series in real-world scenarios. For example, 501-6704 seals showed only 0.02mm wear after 500 hours of dust exposure—compared to 0.15mm wear for the 7079964230-series. 286-0113 seals, meanwhile, maintained full sealing capability after 300 hours in pH 2 acid—while the 7079944060 seals developed leaks after 180 hours.

In summary, whether you select the non-hyphenated 5016704 and 2860113 or the hyphenated 501-6704 and 286-0113, our Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit delivers unmatched resilience for excavators and loaders. 5016704 (501-6704) protects against dust-induced wear, while 2860113 (286-0113) defends against chemicals and impacts—together, they cover the full spectrum of harsh environments these machines face. These part numbers are your guarantee of compatibility, durability, and versatility, ensuring your hydraulic systems operate smoothly, reduce downtime, and lower long-term maintenance costs. For any excavator or loader tasked with arm, boom, or bucket operations—from dusty construction to chemical waste handling—5016704, 2860113, 501-6704, and 286-0113 are the seal kit part numbers you can trust.