ARRMA ARA-1550 Hinge Pin 4x63mm

These high-quality steel hinge pins are direct replacement parts for the 2WD Fury and Vorteks vehicles. At 4x63mm, these are the suspension arm pivot pins — the shafts the arms swing on through every bump and landing — and they take constant load in crashes. A bent hinge pin binds the suspension or puts slop into the arm, making the corner feel vague and chewing the arm bore oval over time.

Each pin is manufactured from durable steel, precision ground straight and true for smooth suspension articulation and a snug fit in the arm and mount bores. Straight pins are the foundation of consistent suspension geometry: when the arms pivot freely without play, camber and toe stay where you set them and the truck tracks predictably.

Hinge pins bend in impacts that look harmless from the outside — if an arm feels stiff or sloppy after a hard hit, rolling the pin on a flat surface reveals the bend instantly. At this price, replacing suspect pins during any arm rebuild is automatic.

Fitment covers the ARRMA Fury and Vorteks 2WD platforms. The package includes two 4x63mm hinge pins.