OE Quality
60-Day Returns

Dayco 87805 HVAC Heater Hose - Engine To Heater, Heater Inlet or Heater To Pipe
Overview of Dayco Small I.D. Heater Hose 87805
The Dayco Small I.D. Heater Hose 87805 is designed for reliable HVAC system performance in select Ford, Honda, and Mazda vehicles. Engineered with durable EPDM material, this hose supports efficient heating and cooling by maintaining proper fluid flow within the HVAC system.
- Constructed from EPDM for heat and chemical resistance
- Dual inside diameter hose with 5/8 inch and 3/4 inch ends
- Includes protective sleeve for added durability
- Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
- Compatible with Ford F-150 and Escape, Honda Civic, and Mazda Tribute models
Detailed Product Description
The Dayco Small I.D. Heater Hose 87805 is part of the Small I.D. Heater Hose product line, which focuses on delivering precise fit and reliable performance for HVAC systems requiring smaller inside diameter hoses. This dual I.D. hose features two different inside diameters—5/8 inch on one end and 3/4 inch on the other—to accommodate specific HVAC plumbing configurations. The hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, ensuring long service life under demanding engine bay conditions. Additionally, the hose includes a protective sleeve to guard against abrasion and external damage, although it does not contain a heat shield. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling applications.
Compatible Vehicles and Applications
- Ford F-150 and Ford Escape HVAC heater hose replacement
- Honda Civic heating system hose repair
- Mazda Tribute heater hose maintenance
- Replacement hose for HVAC systems requiring dual inside diameter connections
- Ideal for resolving leaks, cracks, or degraded heater hoses in compatible models
Installation Notes and Tips
- Verify hose inside diameters (5/8 inch and 3/4 inch) match vehicle specifications before installation
- Inspect surrounding components for wear or damage during replacement
- Ensure protective sleeve remains intact to prevent abrasion
- Use proper clamps to secure hose ends and prevent leaks
- Follow vehicle manufacturer guidelines for HVAC hose replacement procedures
Quality Assurance and Warranty
Dayco manufactures the Small I.D. Heater Hose 87805 to meet stringent SAE specifications, ensuring consistent quality and performance. The hose is engineered to withstand typical automotive heating system conditions, including exposure to heat and fluids. While specific warranty details are not provided, Dayco products generally adhere to industry standards for durability and reliability.
| Brand | Dayco |
| Part Number | 87805 |
| Position | Small I.D. Heater Hose, Heater Inlet |
| Color | Black |
| Contains Protective Sleeve | Y |
| End 1 Inside Diameter | 5/8 |
| End 2 Inside Diameter | 3/4 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R3 Class D-1, SAE J1684 Type EC |
| Trunk Height | 22 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Honda | Civic | 1.8L | L4 | Heater Inlet | Small I.D. Heater Hose |
| 2014 | Honda | Civic | 1.8L | L4 | Heater Inlet | Small I.D. Heater Hose |
| 2013 | Honda | Civic | 1.8L | L4 | Heater Inlet | Small I.D. Heater Hose |
| 2012 | Honda | Civic | 1.8L | L4 | Heater Inlet | Small I.D. Heater Hose |
| 2010 | Ford | F-150 | 4.6L | V8 | Engine To Heater | Small I.D. Heater Hose |
| 2009 | Ford | F-150 | 4.6L | V8 | Engine To Heater | Small I.D. Heater Hose |
| 2004 | Ford | Escape | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2004 | Mazda | Tribute | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2003 | Ford | Escape | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2003 | Mazda | Tribute | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2002 | Ford | Escape | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2002 | Mazda | Tribute | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2001 | Ford | Escape | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
| 2001 | Mazda | Tribute | 3.0L | V6 | Heater To Pipe | Passenger Side; Small I.D. Heater Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.