Upgrade your RC crawler's power system with this OGRC 550 21T brushed motor and 80A ESC combo. It's a perfect replacement for stock motors like the Traxxas Titan 550 (model #3975) and works great with popular 1/10 scale crawlers: Traxxas TRX4, TRX6, 1979/2021 Bronco, Axial SCX10 II/III, Redcat Gen7/Gen8 V2, and RC4WD D90. The motor is a 21-turn 550 size, offering good torque and smooth control for crawling. The 80A ESC is feature-packed: it's waterproof, has dual modes (crawler and high-speed), BEC voltage switching, and protections like low-voltage cutoff and overheat protection. It comes with a T plug to XT60 converter adapter, so you can use it with different battery connectors. Input voltage is for 2S LiPo (7.4V) or 5-7 cell NiMH – NOT for 3S. Easy to install if you're familiar with RC electronics. A solid, affordable combo that gives your crawler reliable power and better performance on the trails. Get ready to conquer more obstacles!