RE4R03A RG4R01A JR403E Sonnax Overdrive Servo Piston Kit Nissan Isuzu Automatic Transmission
OPT Product Code: SNX-62170-01K$68.27
Product Details
The overdrive servo piston in JR403E units is prone to cracking, allowing apply oil leakage that causes poor 3-4 shift quality and burned bands. The OEM servo cover bolts stretch and break under normal use. As the cover becomes loose, it allows the piston to cock and break. The Sonnax overdrive servo piston 62170-01K is thicker and stronger and will not break like the OE pistons do. Features & Benefits: Piston is made from billet aluminum for greater strength and wear resistance. The 88mm (3.46") 4th piston can be used to upgrade from the smaller 75mm (2.953") 4th piston when used with a larger piston housing. High-strength bolts will not stretch, and keep cover firmly secured. Nissan, Isuzu, MItsubishi, Infiniti, Chevrolet and GMC 2-ton trucks
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