Elring 535.230 HVAC Heater Hose Seal

Overview

The Elring 535.230 HVAC heater hose seal is a sealing component for engine coolant pipe applications. It is listed for a wide range of Cadillac, Chevrolet, Buick, and GMC vehicles, including Cadillac CTS, Cadillac ATS, and Chevrolet Camaro applications.

This seal uses a 2-bore mounting design and cross-references 12636104 for the same application. If you are replacing a leaking coolant pipe gasket on a Cadillac CTS or Chevrolet Colorado, this part number 535.230 provides a direct sealing solution for the listed fitments.

Key Features

• HVAC heater hose seal for engine coolant pipe gasket applications
• 2 mounting bores for the listed sealing interface
• Alternative repair kit reference: 044.340
• Cross-references 12636104 for the same application
• Elring part number 535.230

Detailed Description

Elring 535.230 is a gasket and sealing-system component used where the coolant pipe connection requires a reliable seal. The fitment data covers multiple GM platforms, including Cadillac CTS, Cadillac ATS, Chevrolet Colorado, GMC Canyon, Chevrolet Camaro, Buick Allure, Buick LaCrosse, Cadillac STS, Cadillac SRX, and Buick Rendezvous. For buyers searching for a Cadillac CTS coolant pipe gasket, Cadillac ATS heater hose seal, or Chevrolet Colorado engine coolant pipe gasket, this part number 535.230 matches the listed applications.

The 2-bore design identifies the mounting pattern for the sealing point, and the alternative repair kit reference 044.340 helps confirm the correct service part family. Use this Elring seal when servicing the coolant pipe connection on the specified vehicles and when the original gasket shows leakage or deterioration.

What It Is Used For

• Stopping coolant seepage at the pipe-to-housing sealing point
• Replacing a worn or flattened engine coolant pipe gasket
• Restoring a proper seal after coolant service work
• Addressing leaks traced to the heater hose or coolant pipe connection

Installation Notes

Verify the vehicle year, make, model, and gasket style against the fitment table before ordering. Clean the sealing surfaces thoroughly before installation and inspect the mating components for corrosion, pitting, or damage that could affect sealing. Confirm the part number 535.230 and the 2-bore mounting pattern match the removed seal.

Quality Assurance

Elring is a sealing-system brand known for OE-style gasket and seal applications. Part number 535.230 is listed with a defined fitment range and a direct interchange reference to support correct application matching.