Buying guide7 min read
Backhoe Rental Rates, Delivery, and Key Attachments
A contractor’s guide to backhoe rental with rate drivers, delivery checkpoints, and the right attachments for trenching, utility, and cleanup work.
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SPECS / BACKHOE LOADERS
Case 646 Specs
Case 646 backhoe loader specifications: horsepower 12.3 kW, weight 539.0 kg, transmission type Hydrostatic, length 274.0 cm.
Manufacturer specifications
| Specification | Metric | Imperial |
|---|---|---|
| Horsepower | 12.3 kW | 16.5 HP |
| Weight | 539.0 kg | 1188.3 lbs |
| Transmission Type | Hydrostatic | |
| Length | 274.0 cm | 107.9 in. |
| Pump Flow | 34.1 LPM | 9.0 GPM |
| Years Made | 1972-1980 | |
| Engine Model | Onan CCKA | |
| Engine Type | 4-stroke, air-cooled, V | |
| Fuel Type | Gasoline | |
| Cylinders | 2 | |
| Displacement | 816 cc | 49.8 cu in. |
| Bore | 8.31 cm | 3.27 in. |
| Stroke | 7.59 cm | 2.99 in. |
| Rated RPM | 3600 RPM | |
| Compression Ratio | 7.0:1 | |
| Spark Plug | Champion H8 | |
| Battery | 12 V, 32Ah | |
| Starter | Electric | |
| Height | 109.0 cm | Steering Wheel Height: 42.9 in. |
| Wheelbase | 121.0 cm | 47.6 in. |
| Ground Clearance | 20.0 cm | 7.9 in. |
| Fuel Tank Capacity | 18.9 l | 5.0 gal |
| Oil Capacity | 3.8 l | 1.0 gal |
| Hydraulic Capacity | 11.4 l | 3.0 gal |
| Transmission Model | Hy-Drive | |
| Gears | Infinite forward and reverse | |
| Chassis | 4×2 2WD | |
| Max. Travel Speed | 10.5 km/h | Forward: 6.5 MPH (10.5 km/h) Reverse: 6.5 MPH |
| Brakes | Mechanical band | |
| Drawbar Category | 0 | |
| Cabin Type | Open operator station | |
| Steering Type | Manual | |
| Front Tires | Industrial: 5.70-8 | |
| Rear Tires | Industrial: 27×8.50-15 | |
| Hydraulic Type | Open center | |
| Working Pressure | 158.6 bar | 2300.0 psi |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
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Buyers search this page for a Case 646 every week. Listing one is free.
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