Transmission Line Pressure Test Gauge Kit 500 PSI Adapters

When an automatic slips, flares between shifts, or bangs a harsh 1-2, the first real answer is a line pressure reading. Guessing at the valve body or condemning a pump without a gauge on the port is how you end up doing the job twice. This kit threads into the transmission's line pressure tap, and the dual-scale gauge reads 0-500 PSI / 0-35 Bar so you can see actual pump output in Park, Reverse, and each drive range and compare it to the factory spec.

The 60-inch (152 cm) rubber hose is rated for the full 500 PSI, long enough to run the gauge into the cab for a road test while you watch what line pressure does under throttle and load. That is how you confirm a TV cable or throttle valve adjustment on a 700R4 or 4L60E, verify EPC pressure after a valve body change, or check a Dodge 47RE/48RE that is not holding pressure. The set covers the common test ports with six brass fittings, four adapters, and a brass extension tube in 1/8-inch through 3/8-inch NPT male and female, plus a 90-degree elbow for tight ports.

Works on most domestic and import automatics that have a line pressure tap, including GM TH350, TH400, 700R4, 4L60E and 4L80E, Ford C4, C6, AOD and 4R70W, and Chrysler TorqueFlite, 46RE, 47RE and 48RE. The 500 PSI range is built for transmission line pressure; the same gauge threads into an engine oil sending-unit hole for a mechanical oil pressure check as well. Everything stores in a blow-molded case, 13 x 10 x 2.3 inches. Ships from the USA, handling in 1-2 business days.