Hign-concerned Chemical:NoneSpecial Features:Alternative to 6637 or 276589003300Item Weight:220gModel Name:for Benz M276 EngineBrand Name:DPLItem Type:Engine CareMaterial:SteelOrigin:Mainland ChinaProduct Descriptio Specially designed to install the inner chain check valve at ease Application : Fits Benz M276 engine. ReplacementAlternative to 6637 or 276589003300. Function This tool is specially designed to install the inner chain check valve at ease. Press the check valve into the hole flush and screw it into the cylinder head surface, and then turn the pressure screw until the plate is flush with cylinder head surface. Material Made of top high quality and wear resistance steel, durable and strong enough. Satisfaction Guarantee DPL Official Store aims to provide best products and services for our customers. If you receive broken or defective tool, please contact us immediately Tool Use Guideline Press the check valve into the hole flush Screw it into the cylinder head surface Turn the pressure screw until the plate is flush with cylinder head surface Make sure the check valve is flush with the cylinder head surface and then take off the press Note With certain entry numbers, both chain tensioners must be replaced.