Spring for the oil pump check valve.
Fits:
XL 1957-1971
UOM: PK
Country Of Origin: USA
OEM Cross Reference: 26364-57
Accessory Items:
16-0889 – Oil Pump Snap Ring Installer
16-0519 – Oil Pump Check Valve Ball Re-Seater Tool
16-9724 – Oil Pressure Sender Unit Wrench Tool