這款 Carrera 替換零件是一條紅藍色的單一引擎線材，產品名稱為「1 engine - red-blue cable for 503016」。它列於 Carrera 品牌之下，並帶有 SKU 代碼 370410349。此商品分類為備用零件及 RC 飛行相關標籤，表示它是相容 Carrera 產品的組件。
The red-blue color coding made it really easy to identify which wire goes where, and it connected perfectly to my 503016 set. My car is back on the track and running smoothly now.
Wasn't sure a single cable would fix my dead car, but the red and blue leads matched the original wiring perfectly. Took about two minutes to swap and it's running laps again.
Snapped this cable into my slot car and it was running again in under a minute. The red and blue wires are the exact match for the 503016 connector, no fiddling needed. Way cheaper than buying a whole new chassis.