Overview Reviews Product Description O-ring SPACER found in many Tire Changer Valves OEM / Aftermarket Interchanges: 0016566. Product Videos Custom Field Product Reviews Write a Review Write a Review × OEM (see "Policies" page for definition) SPACER, O-ring; found in many Tire Machine Valves. ST0016566 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *