Hawk B10 Gearbox

The Hawk B10 is a compact reduction gearbox engineered by Leuco S.p.A. in Italy for Hawk high-pressure piston pumps. Rated at 7 kW (10 HP), it steps down petrol-engine speed from 3,100 RPM to 1,425 RPM through a 2.176:1 helical gear train, delivering the precise shaft speed Hawk triplex pumps require. The B10 suits mid-range waterblasting rigs and car-wash systems where a reliable, oil-bath gearbox is needed between engine and pump. AES Waterblasters is the New Zealand distributor for Hawk / Leuco products and carries the B10 gearbox and all associated spare parts ex-stock in Auckland.

Specifications

Manufacturer Hawk (Leuco S.p.A., Italy)
Model B10
Code 1.099-679.0
Maximum Power 7 kW (10 HP)
Input Speed 3,100 RPM
Output Speed 1,425 RPM
Gear Ratio 2.176 : 1
Engine Shaft 1″ (25.4 mm)
Pump Shaft 24 mm
Flange Standard SAE J609B
Lubrication SAE 90 gear oil, 0.35 L (10 oz)
Weight 3.95 kg
Mounting M6 bolts, 90 mm PCD

Applications

  • Petrol-engine waterblasters and pressure washers up to 10 HP
  • Car-wash bay pump drives (engine-to-pump coupling)
  • Mobile jetting and drain-cleaning units
  • Agricultural and horticultural spray rigs
  • Industrial cleaning skids with Honda GX or similar engines

Key Features

  • Helical-cut gears for quiet, efficient power transfer
  • Oil-bath lubrication, no external pump or lines required
  • SAE J609B bell-housing flange for direct engine mounting
  • Lightweight aluminium housing (3.95 kg) keeps rig weight down
  • 2.176:1 ratio converts standard 3,100 RPM engine speed to 1,425 RPM pump speed
  • Compatible with Hawk NST, HD, NHD, NHDP Car Wash and NHDP 200 pump series

Technical Documents

Parts & Service

AES Waterblasters stocks genuine Hawk replacement gears, seals, bearings and oil-fill plugs for the B10 gearbox. If you need a spare part, a rebuild kit or technical advice on installation, contact our Auckland service team on 09 271 4782.

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We service and repair water blasters of all makes and models, not just our own, from our fully equipped workshop in East Tamaki, Auckland. Pump rebuilds, unloaders, burners, engines and full machine inspections, with water blaster servicing and repairs available across Auckland and nationwide.

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