Gates EMH773 Engine Crankcase Vent Valve - Oil Separator

Gates EMH773 Crankcase Vent Valve Overview

The Gates EMH773 is an OE-exact crankcase vent valve oil separator built for emission control service on select Ram and Dodge Ram heavy-duty trucks. It is made from plastic and is engineered for an exact fit and straightforward installation while helping restore crankcase ventilation performance.

Compatible with 2007-2010 Dodge Ram 2500 and Ram 3500, as well as 2011-2020 Ram 2500 and Ram 3500, this oil separator supports proper crankcase pressure regulation in the emission ventilation system. Gates EMH773 is a direct replacement choice for owners searching for a Ram 2500 oil separator or Ram 3500 crankcase vent valve replacement.

Key Features

• OE-exact crankcase vent valve / oil separator replacement
• Plastic construction for application-specific fitment
• Three hose connectors for the listed crankcase ventilation layout
• Restores emission ventilation system operation and performance
• Direct-fit service part for Ram and Dodge Ram diesel and gas truck applications

Product Details

Gates EMH773 is part of Gates’ Crankcase Vent Valve line, which focuses on OE-style crankcase ventilation pressure regulators, PCV valves, and oil separators. The goal of this product line is to match original equipment dimensions and function so the part installs cleanly and returns the emission ventilation system to proper operation. This part cross-references Dorman OE Solutions 904-416 and 904-418 for the same application.

Use this Gates EMH773 oil separator when servicing the crankcase ventilation system on 2007-2010 Dodge Ram 2500, 2007-2010 Dodge Ram 3500, 2011-2020 Ram 2500, and 2011-2020 Ram 3500. It is a practical replacement for drivers looking for a Ram 2500 crankcase vent valve or Ram 3500 oil separator with OE-style fitment.

What It Helps Address

• Crankcase ventilation restriction or poor pressure regulation
• Oil separation issues in the emission control system
• Check engine concerns related to crankcase ventilation faults
• Oil vapor management problems in the crankcase vent system
• Fitment issues from worn or incorrect replacement parts

Installation Notes and Tips

Confirm the vehicle year, make, model, and position before installation. This part is listed for the oil separator position with crankcase vent valve notes, so match the original routing and hose connection layout before removal. Inspect the surrounding ventilation hoses and connectors for wear, cracking, or contamination during service.

Quality Assurance

Gates supplies OE-exact emission ventilation components intended to restore the system to desired operating levels and support long service life in crankcase ventilation service.