Sonnax O-Ringed End Plug & Checkball Kit

O-Ringed End Plug & Checkball Kit
Part No. 37947-13K

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The end plugs at the kick downshift control, manual low, and throttle downshift control valves become loose. This allows solenoid feed oil to exhaust and drop below 40-45 psi, which prevents the shift valves from stroking fully. Sonnax O-ringed end plug and checkball kit 37947-13K contains O-ringed end plugs for these three locations, which positively seal the circuit to prevent oil loss.

O-Ringed end plugs positively seal the circuit to prevent oil loss
End plugs have threaded ends for ease of installation and removal
Kit contains 4 Torlon^® checkballs to replace lost or damaged originals
Kit contains 4 L-shaped retainer pins to replace lost originals
Drop-in Zip Valve^™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Contents

End Plugs (2) Small
End Plug Large
O-Rings (5) Small, 1 Extra
O-Rings (3) Large, 1 Extra
Checkballs (4)
L Retaining Pins (4)

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.