Overview Product Description ARP 12 Tooth Straight 48 Pitch Pinion ARP4812S Product Videos Custom Field Product Reviews Write a Review Write a Review × ARP 12T 48P Solder-On Straight Pinion ARP4812S Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *