A-B123139GS-AI KEY-SQUARE model-942536J This pack includes four #80

This pack includes four #80 roller chain connector links (also known as master links)

555B INDUST/CONST

The 40-degree wedge profile delivers reliable power transmission through pulley-driven drive systems on combines

Fits Case/Fits David Brown Tractor Models:

Replaces Part Number(s): B51776

A-B123139GS-AI KEY-SQUARE model-942536J This pack includes four #80One New Aftermarket Replacement Square Key Fits Briggs and Stratton (Fits Briggs & Fits Stratton) Small Engines This square key is a small but essential drivetrain component used on Fits Briggs and Stratton engines. It seats into the keyway on the crankshaft or pump drive shaft, locking rotating components in precise alignment and preventing slippage during operation. Commonly used on pressure washers, lawn mowers, and other outdoor power equipment