The 9980 Series Q5 B1666 is a 35 horsepower post hole digger gearbox engineered for small Japanese-pattern tractors — Kubota, Yanmar, Iseki, Mitsubishi and similar. Sized to match the lower power output of small compact tractors without overspecifying — paying for capacity that the tractor can't deliver makes no economic sense.

The 2.92:1 reduction ratio steps the standard 540 RPM PTO down to a working auger speed appropriate for small-diameter post holes in typical farm soils. Standard 1 3/8" x 6 spline input matches all common Australian PTO drive shafts.

Specifications

• Power rating: 35 HP
• Gear ratio: 2.92:1
• Input shaft: 1 3/8" x 6 spline (standard PTO)
• Output shaft: 2" diameter round, 1/2" cross drilled
• Spare parts available — oil seals and bearings stocked

Freight paid to any destination in Australia. For larger tractors, see the Q6 B4666 (50HP) or Q7 B5666 (75HP) post hole digger gearboxes. Augers in a range of diameters are available — search "augers" on this website.