Firma 4074 2050Kv Brushless Motor

The Spektrum Firma 4074 2050 KV Brushless Motor is a high-performance upgrade for 1/8‑scale buggies, truggies and monster trucks rated for 3–6S LiPo operation. It features a low‑cog 4‑pole rotor, hardened steel Safe‑D shaft, precision ball bearings and pre-installed gold bullet connectors for seamless installation.

Features

• Designed for 1/8‑scale vehicles running 3S–6S LiPo packs
• Low‑cog 4‑pole, 8‑magnet rotor for smooth high‑RPM performance
• Safe‑D 5 mm hardened steel shaft with C‑clip locking capability
• CNC‑machined aluminium housing with insulated copper windings
• Pre‑installed 4 mm gold‑plated bullet connectors

What’s in the box

• Firma 4074 Brushless Motor (2050 KV, sensorless)
• Instruction sheet

Needed to complete

• Compatible Smart ESC (e‑g. Firma 150) or other ESC capable of 60 A+
• 3S to 6S LiPo battery (7.4–25.2 V)
• Full‑range 2.4 GHz transmitter and receiver

Specifications

• Application: 1/8‑scale buggy, truggy or monster truck
• KV rating: 2050 KV
• Input voltage: 12–25.2 V (3S–6S LiPo)
• Maximum continuous current: 62 A
• Peak output power: 5050 W
• Efficiency: approx. 85 %
• Motor size: 4074 (40 mm diameter × 74 mm length)
• Outer diameter: 40 mm
• Length: 74 mm
• Shaft diameter: 5 mm (Safe‑D C‑clip compatible)
• Connector type: 4 mm bullet
• Weight: approx. 415 g
• Poles: 4
• Sensored: No