Dayco 87937 HVAC Heater Hose - Heater Outlet

Dayco Small I.D. Heater Hose for Jeep Wrangler

Dayco 87937 is a Small I.D. Heater Hose built for HVAC heater outlet service on select Jeep Wrangler models. It uses EPDM construction with a black finish, plus a heat shield and protective sleeve for added thermal protection in the heater hose routing.

Compatible with 2007-2011 Jeep Wrangler heater outlet applications, this hose is sized with 5/8-inch inside diameter ends and 1 1/32-inch outside diameter ends. Dayco 87937 is a direct-fit HVAC heater hose choice for Jeep Wrangler owners replacing a worn or heat-damaged hose in the cooling and cabin heat circuit.

Key Features

• EPDM rubber construction for heater hose service
• 5/8 in. inside diameter at both ends
• Black finish for OE-style appearance
• Contains a heat shield and protective sleeve
• Single I.D. hose design
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Cross-references ACDelco 18427L and Gates 18001 for the same application

Product Details

The Dayco Small I.D. Heater Hose line focuses on heater hose routing where compact sizing and thermal resistance matter. Part number 87937 is engineered for the heater outlet on 2007-2011 Jeep Wrangler models and is sized to match the listed 5/8-inch connections. The EPDM hose material, protective sleeve, and heat shield support use in elevated-temperature HVAC plumbing, while the SAE J20R3 Class D-1 and SAE J1684 Type EC specifications provide a clear reference for replacement selection.

For Jeep Wrangler heater hose replacement, Dayco 87937 offers a straightforward option when the original hose shows cracking, softening, leakage, or heat-related wear. It is also a practical choice when searching for a 2007-2011 Jeep Wrangler heater outlet hose, a 5/8-inch heater hose, or a Dayco 87937 HVAC heater hose replacement.

Common Problems This Hose Can Address

• Coolant seepage at the heater outlet connection
• Cracked or hardened heater hose material
• Heat damage near the HVAC hose routing
• Restricted cabin heat from a deteriorated hose
• Replacement needs for a 2007-2011 Jeep Wrangler heater outlet hose

Installation Notes

Verify the heater outlet routing and confirm both hose ends match the listed 5/8-inch inside diameter before installation. Inspect adjacent clamps, fittings, and coolant passages for wear or corrosion, and replace any damaged components as needed. After installation, refill and bleed the cooling system according to the vehicle service procedure to restore proper heater operation.

Quality Assurance

Dayco manufactures this heater hose to SAE J20R3 Class D-1 and SAE J1684 Type EC requirements for the listed application. Part number 87937 is built for 2007-2011 Jeep Wrangler heater outlet service and is backed by Dayco’s product engineering standards.