Cab Door Checkstrap Pin 56-79 Beetle. 111-837-257 111837257 £1.20 Quantity: at £1.20 each Add To Basket Cab door check strap pin to fit 56-79 Beetle. This secures the check rod to the body itself. Manufactured by Wolfsburg West. We've been searching for the best manufacturers of Beetle products for a long time, we didn't want to compromise on quality by adding just any brand to the website.