The Eaton Fuller K-3167 or K3167 Washer Update Kit is a genuine OEM kit designed for RTX and RTXF series heavy-duty transmissions. Listed in the parts manuals for 20 transmission models spanning the RTX-11710B through RTXF-16710C, this kit addresses mainshaft washer service across that entire range. The kit includes one mainshaft assembly (S-2688), two mainshaft gears (4302394 and 4303428), two additional gears (4302393 and 4303497), four washers (4302398), two washers (4303603), one M-shaft SPL key (4304614), one snap ring (16763), and three reference letters (L-1096, L-1096-1, and L-1096-2). Call us to confirm proper fit for your specific transmission model and serial number.
Features
Fits 20 RTX and RTXF transmission models from RTX-11710B through RTXF-16710C
Includes mainshaft assembly S-2688 plus two mainshaft gears and two additional gears
Four washers (4302398) and two washers (4303603) cover the full mainshaft washer update
M-shaft SPL key (4304614) and snap ring (16763) included
Three OEM reference letters (L-1096 series) included for installation guidance
Genuine Eaton Fuller part sold by Pro Gear and Transmission
