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Your cart is empty.OTC's 4853 Piston Ring Compressor makes installing pistons into an engine block trouble free. Universal piston ring compressor clamps around piston to compress piston rings during piston installation. Adjustable handle provides an effective size range for rings from 2.125 inch to 5.0 inch diameter. Size range accommodates most passenger car and light truck pistons/rings as well as many commercial vehicles. Crafted from high-grade materials to ensure quality performance over the lifetime of the tool. Similar to J-8037. Made in the USA. Value is at the core of the OTC tool and equipment portfolio. Whether it’s a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it’s a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians’ productivity and shop profits.