The Spicer TTC 550990 is a needle bearing designed for the 4th mainshaft position in manual transmissions. Spicer TTC, also distributed under the Tremec brand as part number SX550990, supplies this bearing as a direct OEM replacement for the mainshaft assembly. Needle bearings at this position handle radial loads between the gear and shaft, and sourcing the correct OEM part ensures proper clearance and load distribution within the geartrain. Pro Gear and Transmission carries genuine Spicer TTC transmission components. Not sure this is your part? Give us a call to confirm proper fit for your application.
Features
Spicer TTC OEM needle bearing, part number 550990
Designed for the 4th mainshaft position in manual transmissions
Cross-referenced as Tremec part number SX550990
Sold individually (unit of measure: each)
Genuine Spicer TTC transmission component from Pro Gear and Transmission
