Quick answer

To replace the receiver on your HS181 or HM181 RC car, you need to swap the faulty unit with a compatible spare like the BEZGAR PX9300-28B. The process involves disconnecting the old receiver, connecting the new one, and securing it in place.

Why replace the receiver?

The receiver is critical for signal reception. If your RC car loses range, has erratic steering, or doesn't respond to the transmitter, the receiver may be faulty. Replacing it with a genuine spare like the PX9300-28B restores reliable control.

Tools you'll need

You need a small Phillips head screwdriver, a pair of tweezers or needle-nose pliers, and a clean workspace. Optionally, a small brush to clean dust from the receiver area.

Step-by-step receiver replacement

  1. Step 1: Disconnect the battery: Remove the battery from your HS181 or HM181 RC car to prevent accidental power-on or short circuits. Always disconnect the battery before working on electronics.
  2. Step 2: Open the receiver compartment: Use a small Phillips head screwdriver to remove the screws securing the receiver cover. Keep the screws in a safe place. Common mistake: not noting which screw goes where. All screws are usually identical, but check before removal.
  3. Step 3: Unplug the old receiver: Gently disconnect the servo and ESC wires from the old receiver. Use tweezers if the connectors are tight. Note the channel orientation: typically steering servo to channel 1, ESC to channel 2. Take a photo of the wiring before removal to avoid confusion during reconnection.
  4. Step 4: Remove the old receiver: Carefully lift the old receiver out of its mounting position. It may be held by double-sided tape; gently pry it loose without damaging nearby components. If the tape is stubborn, use a plastic spudger to avoid scratching the circuit board.
  5. Step 5: Install the new PX9300-28B receiver: Position the new BEZGAR PX9300-28B receiver in the same spot. Use double-sided tape or the original mounting method to secure it firmly. Ensure the receiver is not touching any moving parts or metal chassis to avoid interference.
  6. Step 6: Reconnect the wires: Plug the servo and ESC connectors into the corresponding channels on the new receiver. Match the orientation: the signal wire (usually white or yellow) faces the inside of the receiver. A common mistake is plugging the connector backward. Check the notch on the connector aligns with the receiver's key.
  7. Step 7: Test the connection: Reconnect the battery and turn on the transmitter, then the car. Check if the steering and throttle respond correctly. If not, recheck wiring and channel assignments. If there's no response, verify the transmitter is bound to the new receiver. Some models require binding; refer to your manual.

Product details

  • Receiver(PX9300-28B) for HS181/HM181: This BEZGAR Receiver (PX9300-28B) is a genuine spare part designed for use with HS181 and HM181 RC car models. Using a genuine spare ensures 100% compatibility and reliable signal reception, avoiding issues with aftermarket parts.

    Receiver(PX9300-28B) for HS181/HM181

    Receiver(PX9300-28B) for HS181/HM181