P-Kits are the Weasler Profile metric version of the R-Kit. P-Kits are standard and offer a high quality lube cycle of 8 hours which is acceptable for many applications. P-kits and E-kits are interchangeable with other cross and bearing kits in Weasler series as well as with standard cross and bearing sets in the market. This means that a Weasler PTO drive shaft with P-kits can still be upgraded to E-kits or M-kits.