MACK R686ST Rigid Haul Dump Trucks
MACK R686ST
5+
sold in last yearGeneral overview
The MACK R686ST is a dump truck built for construction material hauling and disposal tasks. It is powered by a Mack EM6 4 valve mech engine rated at 221 kW (300 hp) and paired with a Mack X107 6-speed transmission, giving the model a straightforward driveline for site and haul-road use.
Specification details such as its 7,658 kg (16,880 lb) total operating weight and steel dump body help define its working profile. The PTO-driven lever-operated hydraulic pump for dump body supports lifting and discharge, while the 3,048 mm (10 ft) body length and 762 mm (30 in) side rail height indicate a compact body setup. Overall length is 6,241 mm (20 ft 6 in), and height is 2,997 mm (9 ft 10 in).
Year
1980, 1981, 1982, 1983, 1984, 1985, 1986
Country of manufacturing
United States
General specifications
Dimensions
Length
Height
Width
6,241 mm
~245.7 in
2,997 mm
~118 in
2,438 mm
~96 in
Rated power
300 hp
Rated Payload
15,000 kg
Body Capacities
12 cu(m)
Additional specifications
Engine Power
205 kW
Transmission type
Mack X,107 6-speed
Hydraulic system type
PTO-driven lever-operated hydraulic pump for dump body
Height
2,997 mm
Length
6,241 mm
Engine Model
Mack EM6 4 valve mech
Dump Body Type
steel
Operating Weights - Total
7,658 kg
Dump Body Side Rail Height
762 mm
Dump Body Length
3,048 mm
Front Axle to Mid Axle Centerline
4,267 mm
Tire Size
11R24.5 (front); 20" (rear, mixed)
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MACK R686ST Rigid Haul Dump Truck
300 hp
6241 mm × 2438 mm × 2997 mm
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Most popular
What is the average price of a MACK R686ST?
No confirmed market price is supplied for the MACK R686ST. Check current listings and compare condition, location, and configuration before assessing value.
What are the key advantages of the MACK R686ST?
Listed features include a steel dump body, a PTO-driven lever-operated hydraulic pump, and a Mack X107 6-speed transmission. Its rated power is 223.7 kW (300 hp), and the supplied specifications identify a Mack EM6 4 valve mech engine.
What type of engine does the R686ST use?
The R686ST uses a Mack EM6 4 valve mech engine.
How much horsepower does the R686ST have?
The R686ST is rated at 223.7 kW (300 hp).
What fuel does the MACK R686ST use?
The supplied data does not confirm the fuel type for the MACK R686ST.
What jobs is this Dump Trucks best suited for?
The supplied configuration includes a steel dump body and PTO-driven hydraulic system for operating that body. This indicates use for hauling and dumping bulk materials, but the supplied data does not confirm specific job-site applications or payload requirements.
What is the expected lifespan of the R686ST?
The supplied data does not provide an expected service-life estimate. For a used truck, condition depends on maintenance history, operating environment, frame and body condition, hydraulic performance, and drivetrain wear.
What should a buyer check when purchasing a used Dump Trucks?
Inspect the steel dump body, side rails, hydraulic pump and controls, tires, frame, engine, transmission, and axle components. Review maintenance records and check for leaks, corrosion, structural damage, uneven tire wear, and proper dump-body operation.
