OE Quality
60-Day Returns

Dorman 626-303 HVAC Heater Hose Assembly - Outer
Overview of Dorman HVAC Heater Hose Assembly 626-303
The Dorman HVAC Heater Hose Assembly 626-303 is designed for reliable heating system performance in select Chrysler, Dodge, and Plymouth vehicles. Constructed from durable steel, this branched heater hose assembly ensures efficient coolant flow and heat transfer for your vehicle's HVAC system.
- Material: Steel construction for durability and heat resistance
- Branched coolant hose type with three flared ends
- End 1 inside diameter: 1.22 inches; End 2 inside diameter: 0.5 inches; End 3 inside diameter: 1.28 inches
- Centerline length of 29.5 inches for precise fitment
- Maximum working pressure rated at 100 psi
- Natural color finish without protective sleeve or heat shield
- Clamps not included
Detailed Product Description
The Dorman 626-303 HVAC Heater Hose Assembly is engineered to meet the specifications required for proper heating and cooling system operation in various Chrysler, Dodge, and Plymouth models. Its steel construction provides strength and resistance to heat and pressure, supporting a maximum working pressure of 100 psi. The branched design with three flared ends allows for secure connections to the heater core and other HVAC components. With a centerline length of 29.5 inches, this hose assembly is tailored to fit models such as the Chrysler Acclaim, Dodge Caravan, Plymouth Sundance, and others, ensuring compatibility and ease of installation.
Compatible Vehicles and Applications
- Chrysler Acclaim, LeBaron, Spirit, Sundance, Voyager, Grand Voyager
- Dodge Caravan, Grand Caravan, Daytona, Shadow
- Plymouth Sundance
This heater hose assembly is specifically designed for these models, providing a direct replacement for worn or damaged HVAC heater hoses to restore proper coolant flow and heating performance.
Common Issues Addressed by This Heater Hose Assembly
- Leaking or cracked heater hoses causing coolant loss
- Reduced heating efficiency due to damaged or collapsed hoses
- Overheating issues related to poor coolant circulation in the heater core
- Corrosion or wear from prolonged exposure to heat and pressure
- Replacement of original equipment hoses that no longer meet performance standards
Installation Notes and Tips
When installing the Dorman 626-303 heater hose assembly, ensure all connections are clean and free of debris. Since clamps are not included, use appropriate clamps compatible with flared hose ends to secure the assembly. Verify the hose routing matches the original configuration to avoid kinks or interference with other engine components. It is recommended to inspect the entire HVAC system for leaks or damage during installation.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 626-303 heater hose assembly undergoes rigorous quality control to ensure durability and reliable performance under normal operating conditions. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 626-303 |
| Centerline Length | 29.5 |
| Clamps Included | No |
| Color | Natural |
| Coolant Hose Heat Shield Included | No |
| Coolant Hose Type | Branched |
| End 1 Attachment Type | Flared |
| End 1 Inside Diameter | 1.22 |
| End 2 Attachment Type | Flared |
| End 2 Inside Diameter | 0.5 |
| End 3 Attachment Type | Flared |
| End 3 Inside Diameter | 1.28 |
| Hose End (1) Outside Diameter (In) | 1.51 in |
| Hose End (2) Outside Diameter (In) | 0.63 In |
| Hose End (3) Outside Diameter (In) | 1.45 in |
| Material | Steel |
| Maximum Working Pressure | 100 |
| Package Contents | Heater Hose Assembly |
| Protective Sleeve Attached | No |
| Thermostatically Controlled | No |
This part fits 45 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1996 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1996 | Dodge | Grand Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1996 | Plymouth | Grand Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1996 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1995 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1995 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1995 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1995 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Chrysler | LeBaron | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Dodge | Grand Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Dodge | Shadow | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Plymouth | Grand Voyager | Outer | Water Pump Tube | |||
| 1994 | Plymouth | Sundance | 3.0L | V6 | Outer | Water Pump Tube | |
| 1994 | Plymouth | Voyager | Automatic | 3.0L | V6 | Outer | Water Pump Tube |
| 1993 | Chrysler | LeBaron | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Dodge | Daytona | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Dodge | Grand Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Dodge | Shadow | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Plymouth | Sundance | 3.0L | V6 | Outer | Water Pump Tube | |
| 1993 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Chrysler | LeBaron | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Dodge | Daytona | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Dodge | Shadow | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1992 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Chrysler | LeBaron | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Dodge | Caravan | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Dodge | Daytona | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1991 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube | |
| 1990 | Chrysler | LeBaron | 3.0L | V6 | Outer | Water Pump Tube | |
| 1990 | Dodge | Caravan | Automatic | 3.0L | V6 | Outer | Water Pump Tube |
| 1990 | Dodge | Daytona | Automatic | 3.0L | V6 | Outer | Water Pump Tube |
| 1990 | Dodge | Spirit | 3.0L | V6 | Outer | Water Pump Tube | |
| 1990 | Plymouth | Acclaim | 3.0L | V6 | Outer | Water Pump Tube | |
| 1990 | Plymouth | Voyager | 3.0L | V6 | Outer | Water Pump Tube |
* 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.