Tekin Pro4 BL 4.5D 1900kv, 540, 5mm shaft

The Tekin Pro4 BL 4.5D 1900kV brushless motor (TT2508) brings T8-inspired engineering to 1/10 scale. Designed for serious 4x4 short course performance, this 540-size, 4‑pole unit delivers smooth, high‑torque power with a robust 5mm shaft, making it a strong choice for demanding tracks and heavier builds. Optimised kV and construction complement 3S–6S LiPo power systems, with sensored control for precise throttle feel.

Built around a CNC‑machined 6061‑T6 billet aluminium heatsink can and high‑purity copper windings, the Pro4 prioritises efficiency, cooling and longevity. Neodymium sintered magnets, oversized ABEC5 bearings and a rebuildable design underscore its race‑ready durability and serviceability.

Key Features

• 4‑pole, 12‑slot high‑torque motor design
• CNC‑machined 6061‑T6 billet aluminium heatsink can
• Neodymium sintered magnets
• Rebuildable design
• High‑purity copper windings maximise efficiency
• Precision engineered for maximum energy conversion
• Dual‑plug sensor wire harness for use with sensored and sensorless systems
• High‑RPM ABEC5 oversized bearings

Specifications

• kV: 1,900
• Voltage: 3S–6S LiPo (11.1–22.2V)
• Size: 540
• Motor length: 52.9mm (2.1")
• Diameter: 35.8mm (1.4")
• Shaft: 5mm diameter x 15.3mm length (0.196" x 0.60")
• Rotor: 18.5mm
• Weight: 193g (6.75oz)
• Configuration: 4‑pole, 12‑slot
• Part number: TT2508

Suggested Compatibility

• 1/10 4x4 short course trucks
• 3S to 6S LiPo power systems
• Sensored and sensorless systems via dual‑plug sensor wire harness