Dayco 88429 HVAC Heater Hose

Overview of Dayco Small I.D. Heater Hose 88429

The Dayco Small I.D. Heater Hose 88429 is designed for reliable HVAC system performance in select Ford, Jeep, and Saturn vehicles. Engineered with durable EPDM material, this hose ensures consistent heat transfer and resistance to automotive fluids.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black single inside diameter hose with 3/4 inch I.D. on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Outside diameter of 1 3/32 inches on both ends for secure fitment
• Compatible with Ford F-250 Super Duty, F-350 Super Duty, Jeep Cherokee, Wrangler TJ, and Saturn Vue
• Part number 88429 ensures precise replacement and fit

Dayco Small I.D. Heater Hose Product Line Details

The Small I.D. Heater Hose line by Dayco focuses on providing single inside diameter hoses tailored for HVAC applications. These hoses are engineered to meet stringent SAE standards, ensuring durability and proper fitment in heating systems. The 88429 model exemplifies this line by offering a reliable, heat-resistant hose suitable for various truck and SUV models.

Detailed Product Description

This HVAC heater hose features a 3/4 inch inside diameter on both ends, making it a single I.D. hose designed for consistent flow and heat transfer within the vehicle’s heating system. The EPDM material offers excellent resistance to heat, ozone, and automotive fluids, which helps maintain hose integrity over time. With an outside diameter of 1 3/32 inches, the hose fits securely onto heater cores and fittings without the need for additional protective sleeves or heat shields. The hose length of 26 1/2 inches provides adequate reach for installation in compatible vehicles.

Applications and Common Issues Addressed

• Replacement of cracked or leaking heater hoses in Ford F-250 Super Duty and F-350 Super Duty models
• Restoring proper heater core flow in Jeep Cherokee and Wrangler TJ vehicles
• Resolving HVAC heating inefficiencies in Saturn Vue models
• Addressing hose degradation due to heat and chemical exposure
• Preventing coolant leaks that can lead to engine overheating

Installation Notes and Tips

• Ensure the hose length and diameter match the original equipment specifications
• Inspect heater core fittings and clamps for wear before installation
• Use appropriate clamps to secure the hose ends and prevent leaks
• Verify no kinks or sharp bends in the hose after installation
• Flush the cooling system if contamination or debris is present before installing the new hose

Quality Assurance and Warranty

Dayco’s Small I.D. Heater Hose 88429 is manufactured to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for HVAC hoses. The EPDM construction provides durability against heat and chemical exposure typical in automotive environments. While specific warranty details are not provided, Dayco products generally adhere to strict quality control processes to maintain reliability and performance.