2025 ARP Catalog

89 WARNING: Cancer and Reproductive Harm - www P65Warnings ca gov s l California Residents WARNING: Cancer www P65Warnings ca gov Perma-Loc® Rocker Arm Adjusters Application Length (A) Thread Size Body Length (B) Shank Size (C) Body Dia (D) 16pc Pack Stamped steel rocker 1200 3/8-24 n/a 0620 n/a 300-8241 l Stamped steel rocker 1200 7/16-20 n/a 0640 n/a 300-8242 l Aluminum rocker 1200 3/8-24 n/a 0550 n/a 300-8243 l Aluminum rocker 1200 3/8-24 n/a 0600 n/a 300-8244 l Aluminum rocker 1200 7/16-20 n/a 0550 n/a 300-8245 l Aluminum rocker 1200 7/16-20 n/a 0600 n/a 300-8246 l Stud girdle 2050 7/16-20 1200 0560 0750 300-8247 l Stud girdle 2615 7/16-20 1735 0560 0750 300-8248 l Big block with girdle 2050/2615 7/16-20 1200/1735 0560 0750 300-8249 l Because there are many different style rocker arms made by each manufacturer, we suggest that you verify the physical dimensions and thread requirements prior to ordering. If you have any questions, call ARP’s tech staff toll-free for details. Threads machined for maximum engagement. Set screw has flush-machined tip for optimum contact and seating on stud. Threads are precision CNC-machined exactly perpendicular to the bottom of adjuster to ensure an optimum seat and even pressure. 12-point head with special shouldered “stop” to hold wrench. Eliminates need for special adjusting tools. Forged in-house from 8740 alloy chrome moly steel and heat-treated throughout (not simply case hardened, as others are). Patent #5,323,741 CUT-AWAY VIEW PERMA-LOC® SPECIAL FEATURES: Bottom machined perpendicular to threads. Application Part No. Dodge Cummins 24V, 12pt 247-7201 l Rocker Pedestal Stud Kit A B C D ROCKER ARM ADJUSTERS

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