Has piggy-back 12MM-1.25 & 18MM-1.50 threads for testing at glow plug port.
Applications: 12MM is for Model 300 & 300 Turbo Diesel from 1978 and the 250 & 350 Turbo models. 18MM is for all regular Mercedes Benz engines & Model 300 prior to 1978.
WARNING: This product can expose you to chemicals including NICKEL (METALLIC), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.