Sonnax 77917-500 .500" Boost Valve O'ring Type For 2004R And 700R4 (4L60) Transmissions.
This Is A New Sonnax 77917-500 O'ring Type .500" TV Boost Valve For These GM Automatic Transmissions;
2004R 1981 THRU 1990
700R4 1982 THRU 1993
4L60 1987 THRU 1993
WILL NOT FIT 4L60E or 4L65E
This Listing Is For (1) One Kit That Is New And Comes With These Items;
- O-Rings (2)
This Valve Is A Must For Any Performance Unit And Will Add These Benefits;
A common problem in GM 200-4R and 4L60 transmissions is burned bands and/or 3-4 clutches. This failure can be reduced by eliminating throttle boost oil leakage. The Sonnax drop-in TV boost valve kit 77917-500 (500" dia.) eliminate these problems for a variety of applications.
Throttle valve boost valve and sleeve are made from made from hardened steel for better wear resistance
O-Rings on sleeve separate throttle pressure and Reverse boost circuits, providing additional protection against cross-leaks
O-Rings prevent loss of oil between the outside diameter of the throttle valve sleeve and pump body
Drop-in Zip Valve™ parts install quickly and easily