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O-ringed End Plug Kit

O-ringed End Plug Kit

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6L80, 6L45, 6L90, 6L50 O RINGED END PLUG KIT 104740-23K


Contains 6 Plugs & 9 O-rings

The primary design function of the OE end plugs is to prevent critical pressure loss by capping the bore; it also performs a secondary function as a spring stop or valve stop. The repetitious and varying actions of fluid pressure, spring motion and valve impact cause wear at the end plug and bore mating surface. Eventually the cumulative loss of hydraulic integrity leads to low pressure in critical circuits.

In GM 6L45, 6L50, 6L80, 6L90 valve bodies, the end plugs at the various clutch regulator valves seal actuator/solenoid feed pressure that is critical to controlling the valve as gears change and clutches apply. When this fluid pressure is allowed to leak due to plug wear, various shift complaints and burnt clutches will occur within those specific circuits. Loss of Reverse and Latch pressure occurs at worn plugs at the clutch select valves, preventing proper control of circuits as line pressure is routed through these valves to feed various clutches depending upon gear selection. Sonnax O-ringed end plug kit 104740-23K corrects these issues.
•No special tools required
•Minimal end-plug-to-bore clearance with added O-ring for positive seal

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