1/8" NPT Male Thread.
Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov.
Rare Parts Extreme Duty Idler Arm # 20608 is designed for use on specific GM Trucks and SUV's. The # 20608 will ONLY fit specified models so please make sure this component will fit your vehicle...