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HLA Attachments MB72GR66BO500 72-Inch Regular-Duty Loader Bucket with GR66 Grapple combines a versatile standard material bucket with a hydraulically operated utility grapple for loading, carrying, and controlling bulky or uneven materials. This configuration pairs the 72-inch MB regular-duty bucket with a 66-inch GR66 Regular Utility Grapple and the BO500 skid-steer-style quick-attach interface. With a maximum grapple opening of 70 inches, dual hydraulic cylinders, reinforced bucket construction, and capacity for materials such as manure and 4-foot round bales, it is a practical front-end-loader attachment for material-handling work.
The GR66 grapple helps secure material against the bucket while loading, transporting, and placing it. Its 70-inch maximum opening provides room to handle bulky loads, while two 2-1/2 × 8-inch hydraulic cylinders operate the grapple. The grapple is sized specifically for the 72-inch MB bucket and is designed for HLA MB-series buckets.
This combination is suitable for handling manure and other difficult-to-contain materials that may not remain secure in a standard open bucket. It can also accommodate 4-foot round bales. Loader auxiliary hydraulics are required for grapple operation.
The 72-inch MB material bucket uses 3/16-inch bucket material with 1/4-inch end plates. A reinforced top lip, round back, and reinforced end plates add strength while supporting easy filling and cleanout. Tapered, self-cleaning end plates help reduce material buildup, making the bucket easier to empty between loads.
A 3/4 × 4-inch beveled cutting edge provides a durable working edge for loading material. The bucket is also drilled for an optional standard bolt-on cutting edge. Its flat top can be used as a visual level indicator from the operator’s position, helping with bucket positioning during loading and carrying.
| Brand | HLA Attachments |
|---|---|
| Configured Model | MB72GR66BO500 |
| Base Attachment Part Number | MB72GR66 |
| Product Type | Regular-duty front-end-loader material bucket with hydraulic utility grapple |
| Nominal Bucket Width | 72 in |
| Bucket Inside Width | 72 in |
| Bucket Outside Width | Approximately 74 in |
| Bucket Depth | 28 in |
| Bucket Height | 25 in |
| Grapple Width | 66 in |
| Maximum Grapple Opening | 70 in |
| Hydraulic Cylinders | 2 × 2-1/2 × 8 in |
| Struck Capacity | 16.9 cu ft |
| SAE Heaped Capacity | 21.3 cu ft |
| Bucket Material Thickness | 3/16 in |
| End-Plate Thickness | 1/4 in |
| Beveled Cutting Edge | 3/4 × 4 in |
| Approximate Combined Weight | 885 lb |
| Quick-Attach Code | BO500 |
| Mounting Interface | Quick attach / skid-steer-style quick attach |
This configuration is intended for front-end loaders equipped with the HLA BO500 universal skid-steer-style quick-attach interface. The 66-inch GR66 grapple is sized to fit the 72-inch MB bucket, and the Regular Utility Grapple is designed for HLA MB-series buckets.
Loader auxiliary hydraulics are required to operate the grapple’s two hydraulic cylinders. Hydraulic hose kits and flat-faced couplers are optional.