Connecting Linkage Bar for Dual Wiper Arms (Parallel Wipers Kit)

The connecting linkage bar for dual wipers is a mechanism that coordinates the motion of two wiper blades driven by a single motor. It consists of a durable metal rod and a set of pivot joints that link the wiper motor’s shaft to the two wiper spindles. When the motor turns, the linkage transmits the motion simultaneously to both blades, ensuring they wipe in sync.

Construction & Materials: The linkage bar (also known as a parallel wiper arm linkage) is made of stainless steel or galvanized alloy, which guarantees durability against saltwater and the elements. All joints are designed with minimal play so that movement is smooth and without slippage. The assembly is robust enough to handle the load of two wipers even under heavy rain or wind resistance when the boat is underway.

Installation: Installing the connecting bar requires mounting a second wiper spindle on the windshield frame (if not already present). One end of the bar attaches to the drive shaft of the wiper motor, and the other end attaches to the second wiper’s mechanism. The linkage length is calibrated to ensure both blades move in parallel and symmetry. The kit includes the necessary bolts and nuts for attachment.

Usage Recommendations: The linkage bar is especially useful for boats with a wide windshield split into two sections (port and starboard panes). Instead of installing two separate wiper motors, one heavy-duty wiper motor (such as Product 1 or 3) can be used in combination with this linkage to drive two wipers in unison. This solution reduces system complexity and maintenance needs while providing effective cleaning of the entire window. Note that for smooth operation, it’s recommended to use a heavy-duty motor with sufficient torque, since driving two blades imposes nearly double the load. Periodically check all connections and pivots for any looseness or wear – tighten or lubricate them with a marine-grade grease if necessary.

With a properly installed connecting linkage, your two wipers will work as one – simultaneously and in harmony clearing the windshield, which improves visibility and safety during navigation in rainy or rough conditions. This makes piloting less stressful, as the captain can trust that the full width of the windshield will remain clear with no blind spots.