Sonnax converter cover S29524116 is an upgrade for Allison MT 600 series converters that puts an end to cracked/leaky studs. The cover is machined from a solid steel forging with a thicker wall section for added strength. The mounting studs and piston drive pins are separated to separate loads from engine and lockup piston.
Upgraded for strength and leak prevention
Meets Allison SIL 31-TR-02 for increased piston pre-load
Balanced and marked like OE cover

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