The Muncie 18T38638 is a cone spacer used as a bearing spacer in Muncie power take-off assemblies. Per Muncie's own service-parts documents, this spacer carries the dimensions 0.989"/0.987", which distinguishes it from the closely related 18T38645 bearing spacer that measures 0.968"/0.966". Getting the right spacer matters: the two parts look similar but are not interchangeable. The 18T38638 appears in service documentation for the Muncie SH Series PTO, used in high-torque air-shift applications. Sold by Pro Gear and Transmission as a genuine Muncie service part. Call us to confirm this is the correct spacer for your PTO build.
Features
Genuine Muncie service part number 18T38638
Bearing spacer dimension: 0.989" / 0.987"
Distinct from closely related 18T38645 (0.968"/0.966") - verify part number before ordering
Referenced in Muncie service documents SP96-05 and SP97-01
Compatible with Muncie SH Series PTO applications per service documentation
Tech Specs
- Spacer Type: Cone / Bearing Spacer
- Dimension: 0.989" / 0.987"
- Related Part (different size): 18T38645 (0.968" / 0.966")
- Service Document Reference: SP96-05, SP97-01
