Sonnax 4L60E 4L65E 4L70E Boost Valve Kit (2006+) – Short .472 4 Groove – 77898e-16k
Sonnax 4L60E 4L65E 4L70E Boost Valve Kit (2006+) – Short .472 4 Groove – 77898e-16k
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Sonnax 4L60E 4L65E 4L70E Boost Valve Kit (2006+) – Short .472 4 Groove – 77898e-16k

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About this item

Rebuilding a 2006 or later GM 4L60E, 4L65E, or 4L70E transmission?

4L60E 4L65E Transmission Boost Valve Kit .470 77898E-6K Sonnax No O

This Sonnax boost valve kit (77898e-16k) is a must-have performance upgrade.

Sonnax Boost Valve Kit - 56947J-74K

It helps correct line pressure issues and improves shift feel.

77898E-4K - 4L60E 4L65E 4L70E Transmission Boost Valve Assembly Kit 470 Sonnax 77898e 04k

This is the short .472 4-groove version.

Sonnax Transmission Company K77898 Sonnax Reverse Boost Valve Kits Summit Racing

Made in the USA by Sonnax, a trusted name in transmission parts.

Sonnax Boost Valve Kit - 36946-03K

No warranty on this one, but it's a brand new, precision-machined component.

4L60E 4L65E 4L70E Sonnax 4L60E-LB2 Line Pressure Booster Kit .490 2006-Up 1.810

Don't rebuild that slushbox without upgrading this weak point.

Sonnax 4L60E 4L65E Transmission BoostValve Kit 1.890 sleeve 4 Groove

$ 16.50
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