Dorman 902-5158 Engine Coolant Filler Neck

Engine Coolant Filler Neck for Honda Civic and Acura CSX

Dorman 902-5158 is an engine coolant filler neck built to match the fit and function of the original neck on specified vehicles. It is made from plastic for dependable cooling system service and includes a cap for direct replacement use on listed applications.

Key Features

• Engine coolant filler neck for the cooling system
• Plastic construction with a black finish
• 1 in. outside diameter
• 16 psi maximum pressure rating
• Bolt-on attachment with clockwise (right) rotation installation direction
• Includes cap
• Single-port design

Detailed Description

This Dorman coolant filler neck, part number 902-5158, is engineered to match the original neck used on select Honda Civic and Acura CSX applications. It is designed for a direct fit on 2006-2011 Honda Civic and 2006-2011 Acura CSX models, helping restore proper coolant fill point function in the engine cooling system. The plastic body, 1 in. outside diameter, and 16 psi pressure rating support standard cooling system operation on the listed vehicles. This part cross-references Honda (e.g., 19050RNBA01) for the same application.

What It Helps Address

• Cracked or leaking coolant filler neck
• Damaged cap sealing surface at the fill point
• Coolant loss from a worn neck assembly
• Improper coolant service access on the radiator or cooling system
• Replacement needs after heat-related plastic deterioration

Installation Notes and Tips

Verify the vehicle application before installation. This part uses a bolt-on attachment and clockwise (right) rotation installation direction. Confirm the 1 in. outside diameter and single-port layout match the original component on your Honda Civic or Acura CSX. Inspect the mating surfaces and cap seal during service to help ensure proper cooling system sealing after installation.

Quality Assurance

Dorman designs this engine coolant filler neck to match the fit and function of the original neck on specified applications. It is manufactured from quality materials for reliable performance and durability in normal cooling system service.