Machine models
John Deere 646 and 646B specifications
| Listing-entry count |
|---|
| 2 |
| Publisher name | Source guide | Listing-entry count | Labels named by the source |
|---|---|---|---|
| John Deere | 646 and 646B | 2 | 646 and 646B |
| Specification | 646 | 646B |
|---|---|---|
| Length With Blade On Ground | 20.67 ft | 21.25 ft |
| Width Over Wheels | 8.7 ft | 8.72 ft |
| Height To Top Of Cab | 10.27 ft | 10.33 ft |
| Wheelbase | 11.95 ft | 8.67 ft |
| Specification | 646B |
|---|---|
| Ground Clearance | 1.44 ft |
| Specification | 646 | 646B |
|---|---|---|
| Number Of Cylinders | 6 | 6 |
| Net Power | 131 hp | 145 hp |
| Gross Power | 141.1 hp | 160 hp |
| Power Measured @ | 2,200 rpm | 2,200 rpm |
| Displacement | 404 cu in | 531 cu in |
| Max Torque | 348 lb-ft | 432 lb-ft |
| Torque Measured @ | 1,600 rpm | 1,500 rpm |
| Aspiration | Turbocharged | Turbocharged |
| Specification | 646 | 646B |
|---|---|---|
| Operating Weight | 30,012 lb | 31,450 lb |
| Fuel Capacity | 50 gal | 56 gal |
| Hydraulic System Fluid Capacity | 17.5 gal | 17.5 gal |
| Engine Oil Capacity | 4.3 gal | 5.5 gal |
| Cooling System Fluid Capacity | 9 gal | 12.3 gal |
| Transmission Fluid Capacity | 9.8 gal | 9.8 gal |
| Operating Voltage | 12 V | 12 V |
| Specification | 646 | 646B |
|---|---|---|
| Transmission Type | Power Shift | Power Shift Planetary |
| Number Of Forward Gears | 4 | 4 |
| Number Of Reverse Gears | 2 | 2 |
| Specification | 646 | 646B |
|---|---|---|
| Front Wheels Drum Width | 23 in | 23 in |
| Front Wheels Drum Diameter | 55 in | 55 in |
| Rear Wheels Drum Width | 23 in | 23 in |
| Rear Wheels Drum Diameter | 55 in | 55 in |
| Specification | 646 | 646B |
|---|---|---|
| Blade Capacity | 4.5 yd3 | 4.5 yd3 |
| Blade width | 9.3 ft | 9.3 ft |
| Source guide | Differing-field count reported |
|---|---|
| 646 and 646B | 15 |
| Figure | 646 | 646B |
|---|---|---|
| Engine horsepower per 1,000 lb of weight | 4.4 | 4.6 |
| Fuel tank per engine horsepower | 0.38 gal | 0.39 gal |
History and service record of 646 and 646B
- Deere's own listing. John Deere's brochure lists the JD646 as a compactor: 131 SAE net horsepower, four-wheel drive with a torque converter and power shift, an articulated frame, four-wheel wet-disc brakes, a no-spin front axle differential and a choice of three landfill buckets. JD646 Compactor brochure, John Deere.
- Early Deere loaders. A 1964 John Deere JD646 compactor spec brochure exists, and the machine is listed at 131 SAE net hp with four-wheel drive; the 646B is listed at 145 hp and 31,450 lb. 1964 John Deere JD646 compactor brochure, eBay listing; John Deere 646 compactor, RitchieSpecs.
- Deere construction history. MachineFinder's history of Deere construction equipment traces the company's loaders, dozers and wheel loaders across decades. Notable moments in John Deere construction equipment history, MachineFinder.
| Date | Listing index | Equipment class | Names queried | Result |
|---|---|---|---|---|
| 2026-09-24 | MachineryTrader (machinerytrader.com) | soil or asphalt compactor | 646, 646B | No matching offers in this snapshot |
| Date | Database | Names queried | Result |
|---|---|---|---|
| 2026-09-24 | U.S. Consumer Product Safety Commission | John Deere; 646, 646B | No matching recall in the stated search |
| Evidence class | Document, classification and recorded date |
|---|---|
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| Reference site |
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| Federal agency data |
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| Guide | As-listed machine class |
|---|---|
| John Deere 646 and 646B | soil or asphalt compactor |
John Deere 646 and 646B: Configuration records
646
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Length With Blade On Ground | 20.67 ft |
| Width Over Wheels | 8.7 ft |
| Height To Top Of Cab | 10.27 ft |
| Wheelbase | 11.95 ft |
| Engine | |
| Number Of Cylinders | 6 |
| Net Power | 131 hp |
| Gross Power | 141.1 hp |
| Power Measured @ | 2,200 rpm |
| Displacement | 404 cu in |
| Max Torque | 348 lb-ft |
| Torque Measured @ | 1,600 rpm |
| Aspiration | Turbocharged |
| Operational | |
| Operating Weight | 30,012 lb |
| Fuel Capacity | 50 gal |
| Hydraulic System Fluid Capacity | 17.5 gal |
| Engine Oil Capacity | 4.3 gal |
| Cooling System Fluid Capacity | 9 gal |
| Transmission Fluid Capacity | 9.8 gal |
| Operating Voltage | 12 V |
| Transmission and speeds | |
| Transmission Type | Power Shift |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 2 |
| Wheels | |
| Front Wheels Drum Width | 23 in |
| Front Wheels Drum Diameter | 55 in |
| Rear Wheels Drum Width | 23 in |
| Rear Wheels Drum Diameter | 55 in |
| Blade | |
| Blade Capacity | 4.5 yd3 |
| Blade width | 9.3 ft |
646B
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Length With Blade On Ground | 21.25 ft |
| Width Over Wheels | 8.72 ft |
| Height To Top Of Cab | 10.33 ft |
| Wheelbase | 8.67 ft |
| Ground Clearance | 1.44 ft |
| Engine | |
| Number Of Cylinders | 6 |
| Net Power | 145 hp |
| Gross Power | 160 hp |
| Power Measured @ | 2,200 rpm |
| Displacement | 531 cu in |
| Max Torque | 432 lb-ft |
| Torque Measured @ | 1,500 rpm |
| Aspiration | Turbocharged |
| Operational | |
| Operating Weight | 31,450 lb |
| Fuel Capacity | 56 gal |
| Hydraulic System Fluid Capacity | 17.5 gal |
| Engine Oil Capacity | 5.5 gal |
| Cooling System Fluid Capacity | 12.3 gal |
| Transmission Fluid Capacity | 9.8 gal |
| Operating Voltage | 12 V |
| Transmission and speeds | |
| Transmission Type | Power Shift Planetary |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 2 |
| Wheels | |
| Front Wheels Drum Width | 23 in |
| Front Wheels Drum Diameter | 55 in |
| Rear Wheels Drum Width | 23 in |
| Rear Wheels Drum Diameter | 55 in |
| Blade | |
| Blade Capacity | 4.5 yd3 |
| Blade width | 9.3 ft |
More in John Deere: 9550/9560 STS/9750 STS specs, 6125J–7330, 1070D–1470D.