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Dayco 86804 HVAC Heater Hose
Reliable HVAC Heater Hose for Multiple Vehicle Models
The Dayco Small I.D. Heater Hose 86804 is designed to provide dependable performance in your vehicle's heating system. 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 5/16 inch ID on both ends
- Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
- Trunk height of 6 1/4 inches for precise fitment
- Compatible with a wide range of makes and models including Acura, Chevrolet, Nissan, Toyota, and Volkswagen
About the Dayco Small I.D. Heater Hose Product Line
The Small I.D. Heater Hose line by Dayco focuses on providing single inside diameter hoses that meet strict SAE standards for automotive heating systems. This product line is engineered to maintain integrity under heat and pressure, making it suitable for various vehicle applications requiring a 5/16 inch inside diameter hose.
Durable EPDM Construction and Precise Fitment
This HVAC heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The hose features a consistent 5/16 inch inside diameter on both ends, ensuring a secure connection within the heating system. Its black color and trunk height of 6 1/4 inches allow for easy identification and installation. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive HVAC applications.
Compatible Vehicles and Common Applications
- Replacement heater hose for Acura Legend and Integra models
- Fits Chevrolet Geo Metro and Suzuki Swift heating systems
- Compatible with Nissan Sentra, Maxima, and Pathfinder HVAC lines
- Suitable for Toyota Previa and Volkswagen Beetle heater hose needs
- Works with Mitsubishi Mirage and Mazda MX-3 heating components
Installation Notes and Tips
- Ensure the hose length and diameter match your vehicle’s specifications before installation
- Inspect hose ends for secure fit to prevent leaks
- Use proper clamps compatible with 5/16 inch hoses to maintain system pressure
- Replace any worn or damaged clamps during installation for optimal performance
Quality Assurance and Warranty
Dayco’s Small I.D. Heater Hose 86804 is manufactured to meet SAE standards, ensuring reliable performance in automotive heating systems. While specific warranty details are not provided, Dayco products are generally backed by quality manufacturing processes and industry compliance to support long-term durability.
| Brand | Dayco |
| Part Number | 86804 |
| Position | Small I.D. Heater Hose, Intake Manifold To Throttle Body, Throttle Body To Valve, Pipe To Engine, Throttle Body To Pipe, Water Pump To Pipe, Pipe To Pipe, Pipe To Throttle Body, Valve To Intake Manifold, Pipe To Valve, Throttle Body To Thermostat, Throttle Body To Engine, Pipe-8 To Engine, and Tee To Valve |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 5/16 |
| End 2 Inside Diameter | 5/16 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r3 class d-1, sae j1684 type ec |
| Trunk Height | 6 1/4 |
This part fits 79 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2007 | Saturn | Vue | Manual | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose |
| 2006 | Saturn | Vue | Manual | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose |
| 2005 | Saturn | Vue | Manual | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose |
| 2004 | Saturn | Vue | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose | |
| 2003 | Saturn | Vue | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose | |
| 2002 | Saturn | Vue | 2.2L | L4 | Pipe To Engine | Small I.D. Heater Hose | |
| 2001 | Mitsubishi | Mirage | 1.5L | L4 | Throttle Body To Thermostat | Small I.D. Heater Hose | |
| 2001 | Volkswagen | Beetle | 2.0L | L4 | Throttle Body To Engine | Small I.D. Heater Hose | |
| 2000 | Mitsubishi | Mirage | 1.5L | L4 | Throttle Body To Thermostat | Small I.D. Heater Hose | |
| 2000 | Volkswagen | Beetle | 2.0L | L4 | Throttle Body To Engine | Small I.D. Heater Hose | |
| 1999 | Mitsubishi | Mirage | 1.5L | L4 | Throttle Body To Thermostat | Small I.D. Heater Hose | |
| 1999 | Volkswagen | Beetle | 2.0L | L4 | Throttle Body To Engine | Small I.D. Heater Hose | |
| 1998 | Mitsubishi | Mirage | 1.5L | L4 | Throttle Body To Thermostat | Small I.D. Heater Hose | |
| 1998 | Volkswagen | Beetle | 2.0L | L4 | Throttle Body To Engine | Small I.D. Heater Hose | |
| 1997 | Mitsubishi | Mirage | 1.5L | L4 | Throttle Body To Thermostat | Small I.D. Heater Hose | |
| 1994 | Geo | Metro | 1.0L | L3 | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |
| 1994 | Mazda | Protege | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1994 | Nissan | 240SX | Pipe To Throttle Body | Small I.D. Heater Hose | |||
| 1994 | Nissan | Maxima | Valve To Intake Manifold | Small I.D. Heater Hose | |||
| 1994 | Nissan | Sentra | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1994 | Pontiac | Firefly | 1.0L | L3 | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |
| 1993 | Geo | Metro | 1.0L | L3 | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |
| 1993 | Mazda | MX-3 | 1.6L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1993 | Mazda | Protege | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1993 | Nissan | 240SX | Pipe To Throttle Body | Small I.D. Heater Hose | |||
| 1993 | Nissan | Maxima | Valve To Intake Manifold | Small I.D. Heater Hose | |||
| 1993 | Nissan | NX | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1993 | Nissan | Sentra | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1992 | Chevrolet | Sprint | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1992 | Geo | Metro | 1.0L | L3 | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |
| 1992 | Mazda | MX-3 | 1.6L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1992 | Mazda | Protege | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1992 | Nissan | 240SX | Pipe To Throttle Body | Small I.D. Heater Hose | |||
| 1992 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1992 | Nissan | Maxima | Valve To Intake Manifold | Small I.D. Heater Hose | |||
| 1992 | Nissan | NX | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1992 | Nissan | Sentra | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1992 | Suzuki | Swift | 1.0L | L3 | Throttle Body To Pipe | Small I.D. Heater Hose | |
| 1992 | Toyota | Previa | Pipe-8 To Engine | Small I.D. Heater Hose | |||
| 1991 | Chevrolet | Sprint | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1991 | Geo | Metro | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1991 | Mazda | 929 | Tee To Valve | Small I.D. Heater Hose | |||
| 1991 | Mazda | Protege | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1991 | Nissan | 240SX | Pipe To Throttle Body | Small I.D. Heater Hose | |||
| 1991 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1991 | Nissan | NX | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1991 | Nissan | Sentra | 1.6L | L4 | Pipe To Valve | Small I.D. Heater Hose | |
| 1991 | Pontiac | Firefly | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1991 | Toyota | Previa | Pipe To Engine | Small I.D. Heater Hose | |||
| 1990 | Acura | Legend | Pipe To Pipe | Small I.D. Heater Hose | |||
| 1990 | Chevrolet | Sprint | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1990 | Geo | Metro | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1990 | Mazda | 929 | Tee To Valve | Small I.D. Heater Hose | |||
| 1990 | Mazda | Protege | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1990 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1990 | Pontiac | Firefly | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1989 | Acura | Legend | Water Pump To Pipe | Small I.D. Heater Hose | |||
| 1989 | Chevrolet | Sprint | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1989 | Geo | Metro | Intake Manifold To Throttle Body | Small I.D. Heater Hose | |||
| 1989 | Mazda | 929 | Tee To Valve | Small I.D. Heater Hose | |||
| 1989 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1989 | Nissan | D21 | 3.0L | V6 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1989 | Nissan | Pathfinder | Throttle Body To Valve | Small I.D. Heater Hose | |||
| 1988 | Acura | Legend | Water Pump To Pipe | Small I.D. Heater Hose | |||
| 1988 | Mazda | 929 | Tee To Valve | Small I.D. Heater Hose | |||
| 1988 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1988 | Nissan | D21 | 3.0L | V6 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1988 | Nissan | Pathfinder | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1988 | Nissan | Pathfinder | 3.0L | V6 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1987 | Acura | Legend | 2.5L | V6 | Water Pump To Pipe | Small I.D. Heater Hose | |
| 1987 | Acura | Legend | 2.7L | V6 | Water Pump To Pipe | Small I.D. Heater Hose | |
| 1987 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1987 | Nissan | D21 | 3.0L | V6 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1987 | Nissan | Pathfinder | 3.0L | V6 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1987 | Nissan | Pathfinder | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1986 | Acura | Legend | Water Pump To Pipe | Small I.D. Heater Hose | |||
| 1986 | Nissan | 720 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1986 | Nissan | D21 | 2.4L | L4 | Throttle Body To Valve | Small I.D. Heater Hose | |
| 1986 | Nissan | D21 | 3.0L | V6 | Throttle Body To Valve | 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.