Gravity Wagons

Gravity Wagons

Parker grain wagons mean extra-tough construction standards for long life and hauling ease. The steep interior sides provide fast unloading and complete cleanout. One-piece construction means stronger sidewalls, and all exposed seams and joints are silicone sealed to resist corrosion.  Parker, the most trusted name in moving grain.


    Hopper Design

    • Available in 550, 625 or 750 bushel capacities
    • One-piece box construction for greater strength and durability
    • Steep side and end slopes with graphite coated interior surfaces provide quick and complete cleanout
    • Viewing windows and observation ladder make for safer checking of load contents
    • Silicone sealed seams and durable top coat of high-grade, baked-on enamel red or green paint for a smooth, automotive-like finish

    Unloading Door

    • The 60-inch unloading door opens easily with the large turning wheel
      • The 12" metering door can be used for convenient load sampling 
      • The side delivery unloading chute can be converted to a center-dump chute for pit dumping
    • Nighttime unloading is easier with the flood lamp directly above the chute



    • Spring-torsion system ensures the load stays level over rough terrain and keeps the box tight to the gear during empty transport


    • Models 505 is equipped with rear surge brakes and optional front surge brakes
    • Models 605 and 705 have four-wheel surge brakes for safer control of the heaviest loads
    • High-tensile spindles and hubs ensure years of trouble-free service
    • Tandem towing is easier with the rear 7-prong electrical receptacle, welded steel hitch and safety chain loop connector 
    • All electrical wiring is mesh-wrapped and routed through conduit for extra protection and longer life
    • Capacity-rated safety chain, ASAE-approved taillights and an SMV emblem for safer towing
    • Crimped sill design for greater maneuverability and up to 40 percent tighter turning radius


    • Weatherguard Roll Tarps- Protect grain from adverse weather conditions.
    • Fender Packages- Protect the finish of your wagon and tow vehicle.
    • Right-Hand Unload