Mack Grapple Trucks For Sale

Mack grapple trucks are purpose-built for high-cycle loading of brush, limbs, storm debris, construction waste, and bulky municipal material. In this category, buyers will typically see truck-mounted knuckleboom grapples paired with dump or debris bodies in the 30-yard class, along with both non-CDL and heavier tandem-axle configurations. Mack’s vocational chassis are a strong fit here because they are designed for stop-and-go duty, PTO-driven hydraulic operation, and repeated loading cycles that put constant stress on frame rails, suspension, and rear axle capacity.

One of the first decisions is chassis class. A Mack MD7 grapple truck is commonly spec'd as a single-axle unit around 33,000 lb GVWR, often with a Cummins ISB6.7 in the 280 to 300 hp range and an Allison 2500 RDS automatic. That setup works well for tree service, municipal brush collection, and lighter debris routes where maneuverability matters as much as payload. Larger Mack grapple trucks, including Granite-based tandem-axle units, move into 64,000 lb GVWR territory with heavier front axle ratings, 46,000 lb rears, more robust suspensions, and higher-capacity hydraulic systems. Those trucks are better suited for land clearing, demolition debris, and sustained production work where the grapple and body are used hard every day.

Body and crane specs matter as much as the cab and engine. Buyers should look closely at grapple make and model, boom reach, lifting capacity at full extension, rotation performance, and whether the body is built from AR or Hardox steel for abrasion resistance. A 30-yard brush body is common, but side height, floor thickness, hinge design, tailgate layout, and hoist specification all affect uptime. Wheelbase is another key detail because it influences both legal bridge distribution and boom placement behind the cab. On a grapple truck, a poor wheelbase-to-body match can hurt turning radius, overload an axle, or reduce usable payload. PTO integration, hydraulic tank sizing, and service access around the valve bank and outriggers also deserve attention because they directly affect maintenance time and operator productivity.

Used Mack grapple trucks should be evaluated as crane trucks first and dump bodies second. Inspect boom pins and bushings, cylinder seals, turret wear, weld repairs, outrigger condition, and any cracking around the pedestal or subframe. On the truck side, pay attention to frame reinforcement, rear suspension wear, brake condition, steering play, and signs of chronic overloading. For municipal and contractor fleets, Mack grapple trucks are often selected because the chassis can handle repeated vocational abuse while still offering straightforward service support and familiar diesel powertrain options. The best spec is the one that matches route density, average material type, legal weight target, and how aggressively the grapple is used through the day.