LOCOZI Heater Inlet & Outlet Hose Set for Chevrolet Silverado / GMC Sierra (2014–2019) — Direct-Fit, OE 23126442/23126443

LOCOZI heater outlet and inlet hoses are a direct-fit replacement set designed to restore coolant flow and heater performance on compatible Chevrolet Silverado and GMC Sierra trucks.

These two HVAC heater hoses — an inlet and an outlet — are molded to match the factory routing and connection points for select 2014–2019 Chevrolet Silverado and GMC Sierra models, including the 2018 Cheyenne and 2019 Sierra 1500 Limited. Made from durable materials to resist heat and vibration, the pair replaces OE numbers such as 23126442 and 23126443 and arrives ready for a straightforward swap with no specialty tools required.

Will these hoses fit my Silverado or Sierra?

Yes, this LOCOZI pair is engineered for specific model years and trims. Confirm fitment by matching your vehicle year and model to the listed applications or cross-referencing the original part numbers.

• Fitment covers: 2014–2018 Chevrolet Silverado 1500/2500 and Silverado 1500 LD
• Also fits: 2014–2019 GMC Sierra 1500 and 2019 GMC Sierra 1500 Limited
• Included OE cross-reference: 23126442, 23126443, 24479, 24478, 84919465, 84919467
• Always verify against your truck’s engine bay routing and existing hose shapes

How reliable are these heater hoses under engine heat and vibration?

LOCOZI manufactures these hoses from materials chosen to endure under-hood temperatures and continuous engine movement. Each hose is tested to meet performance expectations for long-term service life, reducing the chance of premature leaks or bulging.

• Heat-resistant rubber compounds designed for sustained high temperatures
• Reinforced construction to resist vibration-induced wear
• Factory-style connectors and bends preserve proper coolant flow
• Quality control testing to ensure dimensional accuracy and seal integrity

How difficult is installation and what comes in the package?

Installation is straightforward for anyone with basic mechanical ability and common hand tools. The hoses are manufactured to be a direct replacement so they align with factory fittings and mounting points to simplify reinstalling clamps and retaining clips.

• Package includes one heater outlet hose and one heater inlet hose
• No special tools required; common pliers and screwdrivers usually suffice
• Replace clamps and coolant as needed when performing the swap
• Follow safe cooling system procedures: work on a cool engine and properly bleed air from coolant lines

What part numbers does this replace and why that matters?

These hoses are replacements for several original equipment numbers, making them suitable when your vehicle’s stamped part number matches one of the listed references. Using the correct cross-reference helps ensure the hose geometry and connector sizes match your truck’s heater core and engine fittings.

• Directly replaces OE numbers: 23126442 and 23126443
• Also replaces: 24479, 24478, 84919465, 84919467 for broader compatibility
• Cross-referencing your truck’s part number avoids fitment mistakes
• OEM-style shape preserves proper coolant flow and heater performance

Who is this for? Technicians, DIY truck owners, and fleet maintenance teams looking for an affordable, OEM-compatible replacement of the heater inlet and outlet hoses for specific Chevrolet Silverado and GMC Sierra years will find this LOCOZI set practical. It’s ideal if you need a ready-to-install pair that restores proper heater-core plumbing, prevents leaks, and matches factory routing without modifications. Always verify the part numbers and vehicle application before purchase to ensure a correct fit.