207SH32 is a Mack O-ring kit for transmission service, sold by Pro Gear and Transmission. Our parts manual lists it as Kit, O-Ring (item 37) in the shifter components assembly of the Mack TRTXL-107 / 1070 transmission. The kit gathers O-rings in several sizes, a rectangular sealing ring, a housing breather and a tube of GSL-0383 lubricant, so the seals can be replaced in one pass. Sold as 1 each.Interchanges:Mack 207SH32Used in this Mack modelTRTXL-107 / 1070 TransmissionFeaturesO-ring kit, listed as Kit, O-Ring (item 37) in the TRTXL-107 / 1070 shifter componentsO-rings in several sizes plus a rectangular sealing ringIncludes a housing breatherIncludes GSL-0383 lubricant for installationSold as 1 eachTech SpecsSell pack: 1 EACHKit contents: BGA-3004 O-ring x2, BGA-3003 O-ring x1, BGA-3008 O-ring x4, BGA-3005 O-ring x2, BGA-3009 rectangular sealing ring x4, BGA-3006 O-ring x2, GSL-0383 lubricant x1, GGA-2993 O-ring x1, BGA-3007 O-ring x1, 940325 housing breather x1