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ATP Automatic Transmission Modulator Valves

Improve slow, sloppy shifts with the addition of ATP automatic transmission modulator valves. These valves will keep your transmission shifting on cue, according to load. ATP adjustable replacements allow you to optimize shift points to meet vacuum load and improve gas mileage and performance. A bad modulator valve can be bad news for your transmission. Get control of your transmission for proper shifting of increased or decreased engine vacuum loads. Replace improper working valves with ATP automatic transmission modulator valves.

4.94 out of 5 stars ( 47 )

$16.99

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$17.99

ICT Billet Modulator Delete Plugs

ICT Billet modulator delete plugs allow you to retain the factory modulator valve and lock it into place. They're designed to be used with manual valve bodies. Made from strong billet aluminum, these plugs will not leak or have problems lasting the life of the transmission. Order the model recommended for your transmission make and type.

5.0 out of 5 stars ( 1 )

$13.99

FTI Performance Billet Modulator Plugs

FTI Performance billet modulator plugs block off modulator vacuum supply. An O-ring or gasket is included with each plug. Order the model recommended for your transmission application.

5.0 out of 5 stars ( 2 )

$12.29

Sonnax Vacuum Modulator Plugs

When building a racing Powerglide, it's necessary to plug the hole left by the vacuum modulator. Sonnax vacuum modulator plugs for the GM Powerglide transmission are made from anodized aluminum, and the gasket is included.

5.0 out of 5 stars ( 1 )

$20.10

ATI Modulator Plugs

ATI modulator plugs are designed to replace the vacuum modulators. These aluminum plugs are used with manual valve bodies and include O-rings. Order the model recommended for your automatic transmission application.

4.5 out of 5 stars ( 2 )