The Kubota RC54-71B is a heavy-duty, mid-mount “belly” mower deck designed for Kubota’s B-series compact tractors. Known for its durability and precise cut, this 54-inch deck is a staple for property owners managing large lawns or estates. The RC54-71 is engineered for efficiency and high-capacity mowing.
Technical Specifications
| Specifications | |
| Suitable tractor | B7100, B7200 |
| Mounting method | Parallel linkage |
| Adjustment of cutting height | Gauge wheel |
| Cutting width | 1,372 mm (54 in) |
| Cutting height | 38 to 120 mm (1.5 to 4.0 in) |
| Blade system | 3-blade configuration for a fine, consistent finish |
| Drive type | Belt-driven via the tractor’s Mid-PTO (Power Take-Off) |
| Belt specs | The standard drive belt features an outer circumference of 112 inches and a width of 0.5 inches |
| Discharge | Side discharge (standard), often compatible with mulching kits |
| Weight (approx.) | 148 kg (327 lbs) |
| Deck thickness | 3.2 mm (0.125 in) |
| Blade spindle speed | 3216 rpm (53.6 r/s) |
| Blade tip velocity | 15740 rpm (80.0 r/s) |
| Blade length | 475 mm (18.7 in) |
| Total length | 1.008 mm (39.7 in) |
| Total width | 1.758 mm (69.2 in) |
| Total height | 345 mm (13.6 in) |
Compatibility and tractor fitment
This specific deck was primarily manufactured to pair with Kubota’s legendary B-series compact utility tractors. Per Kubota USA’s official parts catalog, the RC54-71B is compatible with:
- B7100 Series: Specifically the B7100HST-D and B7100HST-E (New Type)
- B7200 Series: Including B7200D, B7200E, B7200HSTD, and B7200HSTE models
Loader Compatibility: One of its strengths is the ability to remain mounted while using a front-end loader (such as the LA300), providing versatility for multi-tasking.
Performance and Maintenance
The RC54-71 is favored for its “floating” design, which allows the deck to follow the contours of the ground. Key maintenance components include:
- Anti-Scalp Rollers: Strategically placed wheels that prevent the blades from digging into the turf on uneven terrain
- Grease Points: Accessible spindles that require regular lubrication to ensure long bearing life
- Replacement Parts: Common wear items include the drive belt (Part #76529-34710) and high-lift or mulching blades (e.g., 8TEN LawnRAZOR series)
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