MG13 Equivalent Mechanical Seal

A Dependable Equivalent to the OEM MG13

Fitting the MG13 equivalent seal is straightforward — the rotating bellows assembly slides onto the shaft and self-centers through its rubber tail, with the stationary seat set into the gland before final alignment checks, requiring no changes to existing pump chambers. Its longer bellows tail compared to the MG1 and MG12 gives it extra tolerance for shaft play and axial movement, which is part of why plants specify it where alignment isn't perfectly precise. Because the bellows itself handles both the spring force and the secondary seal, there's no separate coil spring exposed to the fluid, keeping the design simple and resistant to clogging. For complete step-by-step installation instructions and torque specifications, refer to our detailed installation guide on the blog.