Dayco 87308 HVAC Heater Hose - Heater To Throttle Body or Oil Cooler To Pipe

Dayco Small I.D. Heater Hose 87308

Dayco 87308 is a Small I.D. Heater Hose built for heater and coolant routing where a 1/2 in. inside diameter is required. Made from EPDM rubber and finished in black, it provides a direct-fit hose option for select Honda, Toyota, and classic GM applications.

This Dayco Small I.D. Heater Hose line focuses on OE-style hose construction for tight coolant connections and heater circuit service. Part number 87308 follows SAE J20R3 Class D-1 and SAE J1684 Type EC specifications for applications that call for a single I.D. hose with 1/2 in. ends.

Key Features

• EPDM construction for heater hose and coolant transfer service
• Black finish for a clean OE-style appearance
• 1/2 in. inside diameter at both ends
• Single I.D. hose design
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC requirements
• Dayco part number 87308 for catalog and cross-reference lookup

Fitment Details

• Fits 2011-2016 Honda CR-Z, N/A, Small I.D. Heater Hose
• Fits 2012-2014 Toyota Camry, Oil Cooler To Pipe, Small I.D. Heater Hose
• Fits 2009-2013 Honda Fit, N/A, Small I.D. Heater Hose
• Fits 1986 Chevrolet Celebrity, Heater To Throttle Body, Small I.D. Heater Hose
• Fits 1986 Oldsmobile Cutlass Ciera, Heater To Throttle Body, Small I.D. Heater Hose
• Fits 1986 Pontiac 6000, Heater To Throttle Body, Small I.D. Heater Hose

Detailed Description

Use Dayco 87308 when servicing small-diameter heater and coolant lines that require a 1/2 in. hose on both ends. The EPDM rubber construction is suited for hot coolant circulation, while the single I.D. hose layout supports straightforward routing in compact engine bays. This hose is listed for select Honda CR-Z and Honda Fit models, plus Toyota Camry oil cooler-to-pipe routing and several 1986 GM heater-to-throttle-body applications.

This part cross-references Gates 18419 for the same application. If you are replacing a worn heater hose on a Honda CR-Z, Honda Fit, or Toyota Camry, part number 87308 gives you a cataloged match for the listed positions and years.

Common Problems This Hose Can Address

• Cracked or hardened heater hose rubber
• Coolant seepage at a small-diameter hose connection
• Restricted heater circuit flow from a deteriorated hose
• Incorrect hose size during heater hose replacement
• Service replacement for routed coolant lines at the oil cooler or throttle body

Installation Notes and Tips

Verify the hose routing, end diameter, and listed position before installation. Confirm the 1/2 in. inside diameter matches the vehicle connection points and compare the original hose shape and length to the replacement. Inspect adjoining clamps, pipes, and fittings for corrosion or wear before installing the new hose.

Quality Assurance

Dayco manufactures this hose to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and performance standards for heater hose service. Part number 87308 is cataloged as a Dayco Small I.D. Heater Hose for the listed applications.