When building a racing Powerglide, it is necessary to plug the hole left by the vacuum modulator. Sonnax now offers the vacuum modulator plug 28738-01K for the GM Powerglide transmission.

Made from aluminum
Anodized
3543L gasket included

More From This Category

Sonnax Pinion Pin, Ford, 4R44E, A4Ld

Sonnax Pinion Pin, Ford, 4R44E, A4Ld

$32.66

Motive Gear Differential Master Bearing Kit, Timken, For CHEVROLET CORVETTE 1985–1996, Kit

Motive Gear Differential Master Bearing Kit, Timken, For CHEVROLET CORVETTE 1985–1996, Kit

$293.47

TCI Automatic Transmission Bands, Red Eagle, High Carbon Steel, For Ford, C-6, Set

TCI Automatic Transmission Bands, Red Eagle, High Carbon Steel, For Ford, C-6, Set

$137.75