1. Introducció
This manual provides essential information for the proper handling, installation, and maintenance of the Continental 66844 Molded Radiator Hose. Adhering to these instructions will help ensure optimal performance and longevity of the product within your vehicle's cooling system. Please read this manual thoroughly before proceeding with any installation or maintenance.
2. Producte acabatview
The Continental 66844 Molded Radiator Hose is engineered for transferring glycol-based coolants to and from the radiator, as well as through other components of a vehicle's coolant system. It is designed to meet or exceed SAE 20R4EC Class D1 specifications and offers resistance to Electrochemical Degradation (ECR).
Característiques principals:
- Temperature range: -40 to +275 F.
- Original configuration for proper fit.
- Synthetic knit reinforcement to resist electrochemical degradation.
- Compatible with most coolants, including ethylene glycol, propylene glycol-based, and organic acid modified long-life coolants.
- Nota: Not for use with fuels or oils.

Figura 2.1: Principal view of the Continental 66844 Molded Radiator Hose. This image displays the hose's molded shape, designed for specific vehicle applications to ensure a precise fit within the cooling system.
3. Informació de seguretat
- Always allow the engine to cool completely before working on the cooling system to prevent burns from hot coolant or steam.
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when handling coolant and automotive components.
- Coolant is toxic. Avoid skin contact and ingestion. Dispose of used coolant responsibly according to local regulations.
- Assegureu-vos que el vehicle estigui ben recolzat sobre els gats hidràulics si cal aixecar-lo.
- Refer to your vehicle's service manual for specific instructions and torque specifications.
4. Instal·lació
Installation of a radiator hose typically involves draining the cooling system, removing the old hose, installing the new hose, and refilling the system. If you are not experienced with automotive repairs, it is recommended to seek professional assistance.
Passos generals d'instal·lació:
- Preparació: Park the vehicle on a level surface and allow the engine to cool. Place a drain pan under the radiator draincock.
- Drenatge del refrigerant: Open the radiator draincock and remove the radiator cap to allow the coolant to drain completely.
- Treure la mànega vella: Afluixeu la mànega clamps als dos extrems de la mànega antiga del radiador. Gireu i estireu amb cura la mànega antiga de les connexions del radiador i del motor. Prepareu-vos per a la possibilitat de residus de refrigerant.
- Inspeccionar connexions: Clean the connection points on the radiator and engine to remove any debris or corrosion.
- Instal·leu una mànega nova: Feu lliscar el nou precinte de la mànegaamps onto the new Continental 66844 hose. Position the new hose onto the radiator and engine connections, ensuring it is fully seated and properly aligned.
- Assegureu-vos Clamps: Apretar la mànega clamps de manera segura. No l'estrenyeu massa, ja que això pot danyar la mànega.
- Recàrrega de refrigerant: Close the radiator draincock. Refill the cooling system with the manufacturer-recommended coolant mixture.
- Purgar aire: Start the engine and allow it to reach operating temperature with the heater on full. Monitor the coolant level and add more as needed to purge air from the system. Replace the radiator cap once the system is full and air-free.
- Inspeccionar si hi ha fuites: After the engine has cooled, re-check the coolant level and inspect all connections for leaks.

Figura 4.1: En angle view of the Continental 66844 Molded Radiator Hose, showing the internal diameter and flexibility. This perspective highlights the hose's construction, which allows for efficient coolant flow and resistance to collapse.
5. Funció i ús
The Continental 66844 Molded Radiator Hose serves as a critical conduit within the vehicle's cooling system. Its primary function is to transport heated coolant from the engine to the radiator for cooling, and then return the cooled fluid to the engine. The molded design ensures a precise fit, preventing kinks and maintaining optimal flow rates. This hose is designed for use with standard automotive coolants and is not suitable for fuel or oil transfer applications.
6. Manteniment
Regular inspection of your radiator hose is crucial for preventing cooling system failures. Perform visual checks periodically, especially during routine oil changes or other under-hood inspections.
Punts d'inspecció:
- Cracks and Fissures: Look for any visible cracks, especially near the ends or bends of the hose.
- Hardening or Softening: Squeeze the hose. It should feel firm but pliable. A hose that is excessively hard, brittle, or mushy indicates degradation and requires replacement.
- Inflor o protuberàncies: Any localized bulges or swelling can indicate internal damage or weakening of the hose structure.
- Fuites: Check for any signs of coolant leakage around the hose clamps or along the hose body. White or colored residue can indicate dried coolant.
- Mànega Clamps: Assegureu-vos que la mànega estigui ben tancadaampsón ajustats i lliures de corrosió.
Replace the hose immediately if any signs of wear or damage are observed to prevent potential engine overheating and damage.
7. Solució De Problemes
Common issues related to radiator hoses are typically visual and indicate the need for replacement.
| Símptoma | Causa possible | Acció |
|---|---|---|
| Fuita de refrigerant | cl. soltamp, cracked hose, pinhole leak | Apretar clamps, inspect hose for damage. Replace hose if damaged. |
| Swollen/Bulging Hose | Internal damage, excessive pressure, age-related degradation | Replace hose immediately. Check cooling system for over-pressurization. |
| Hard/Brittle Hose | Age-related degradation, exposure to extreme temperatures | Substituïu la mànega. |
| Soft/Mushy Hose | Electrochemical degradation (ECR), internal damage | Substituïu la mànega. |
8. Especificacions
| Atribut | Detall |
|---|---|
| Marca | Continental |
| Número de model | 66844 |
| Material | Rubber (Synthetic knit reinforcement) |
| Interval de temperatura | -40 a +275 F |
| Compatibilitat | Glycol-based coolants (ethylene glycol, propylene glycol-based, organic acid modified) |
| Not for Use With | Fuels or oils |
| SAE Specification | Meets or exceeds SAE 20R4EC Class D1 |
| Pes de l'article | 0.53 quilograms (aproximadament 1.16 lliures) |
| UPC | 037256085901 |
9. Garantia i Suport
For information regarding product warranty, please refer to the official Continental website or contact Continental customer support directly. Warranty terms and conditions may vary.
Fabricant: Continental ContiTech
Weblloc: www.continental-automotive.com





