Gates CO34894 Engine Coolant Hose Flange

Gates Coolant Outlet for Mazda Cooling Repair

The Gates Coolant Outlet CO34894 is an OE-style engine coolant hose flange built for direct replacement on select Mazda applications. It is made from plastic and includes a seal for a clean, service-ready coolant connection.

Compatible with Mazda 3, Mazda 3 Sport, Mazda 5, and Mazda CX-7 applications, this coolant outlet is designed to match original fit and function while addressing common aftermarket fit and material concerns. Gates CO34894 is part of the Gates Coolant Outlet line, which covers water outlets through complete thermostat housing assemblies.

Key Features

• Engine coolant hose flange for cooling system repair
• OE exact design for original-style fitment
• Plastic construction
• Includes seal
• Five bolt holes for mounting
• Multiple outlet diameters to match the OE configuration
• Gates Coolant Outlet line coverage for related cooling components

Detailed Description

Gates CO34894 is an engine coolant hose flange engineered for Mazda cooling system service where the original outlet has cracked, warped, or begun leaking. The part is built to fit and perform like the factory component, with outlet sizing that includes 1.28 in, .75 in, .63 in, and .3 in outside diameters and 1.1 in, .6 in, .46 in, and .2 in inside diameters. The five-bolt design and included seal support a direct replacement installation on the listed Mazda 3, Mazda 3 Sport, Mazda 5, and Mazda CX-7 model years.

This part cross-references Dorman OE Solutions 902-690 and Four Seasons 86054 for the same application. Part number CO34894 is a practical choice when searching for a Mazda coolant outlet, engine coolant hose flange, or OE-style thermostat housing outlet replacement.

What It Is Used For

• Replacing a leaking or cracked coolant outlet
• Restoring a secure hose connection at the engine cooling system
• Addressing coolant seepage around the flange or seal surface
• Repairing a damaged OE-style plastic outlet on Mazda cooling systems
• Supporting service on Mazda 3, Mazda 3 Sport, Mazda 5, and Mazda CX-7 cooling circuits

Installation Notes and Tips

Verify the outlet shape, bolt-hole count, and hose diameters against the removed part before installation. Clean the mating surface thoroughly and inspect the hose and adjacent cooling components for wear, swelling, or heat damage. Use the included seal during assembly and refill the cooling system according to the vehicle service procedure after installation.

Quality Assurance

Gates positions this coolant outlet line as an improved, cost-effective replacement for common aftermarket design and material issues. CO34894 is built as an OE exact replacement to support original fit and long service life in the listed Mazda applications.