These hydraulic tappets are made of high quality aluminum alloy, durable and sturdy. It will be a great accessories for your car. Extend the life of your engine. Fit for 20XE/C20XE/C20LET/X20XEV/Z20LET/Z20LEL/Z20LER/C18XE/C18XEL/X18XE/X18XE1/X14XE/C16XE/X16XEL/Z14XE/Z16XE/Z18XE/XE/X30XE engine Part numbers: 420011810, 0640 000, 0640 002, 0640 003, 0640 004, 0640 008, 0640 009, 0640 010, 0640 020, 0640 056, 0640 057, 0640 067, 0640 520, 0640 521, 09117903, 09117904, 091179045, 09117905, 09501024, 24419109, 90348473, 90486843, 90510511, 90511241, 90542783, 90570967, 420011810, 50006416 Specification: Outer Diameter: 32mm/1.26inch Height: 26.5mm/1.04inch Color: Silver Material: Aluminum Alloy Fit for 20XE/C20XE/C20LET/X20XEV/Z20LET/Z20LEL/Z20LER/C18XE/C18XEL/X18XE/X18XE1/X14XE/C16XE/X16XEL/Z14XE/Z16XE/Z18XE/XE/X30XE engine Package Includes: 16 x Hydraulic Tappets Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you.