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Gates 18334 HVAC Heater Hose - Inverter Drain Hose-1
Reliable HVAC Heater Hose for Lexus and Toyota Vehicles
The Gates Molded Heater Hose 18334 is designed to provide durable and efficient heating system performance for select Lexus and Toyota models. Engineered with high-quality EPDM material, this molded heater hose ensures reliable heat transfer and long-lasting service in your vehicle's HVAC system.
- Constructed from durable EPDM material for heat and chemical resistance
- Molded design for precise fit and easy installation
- Inside diameter of 0.31 inches (8 mm) on both ends
- Centerline length of 16.9 inches (429 mm) for accurate fitment
- Compatible with Lexus Highlander and Toyota RX450h models
About the Gates Molded Heater Hose Product Line
The Molded Heater Hose line by Gates focuses on delivering pre-formed hoses that match original equipment specifications. This product line is designed to simplify installation and ensure proper routing within the vehicle’s heating system. The molded construction reduces the risk of kinks and leaks, providing consistent coolant flow and heat transfer for optimal HVAC performance.
Detailed Product Description
The Gates Molded Heater Hose 18334 features EPDM rubber construction, known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have an inside diameter of 0.31 inches (8 mm), making it suitable for precise connections within the heating system. With a centerline length of 16.9 inches (429 mm), this molded hose fits the specific routing requirements of Lexus Highlander and Toyota RX450h models. The molded design ensures a secure fit without the need for additional fittings or modifications.
Common Applications and Issues Addressed
- Replacement of worn or cracked heater hoses in Lexus Highlander and Toyota RX450h
- Resolving coolant leaks that affect HVAC heating performance
- Preventing hose collapse or kinking that restricts coolant flow
- Maintaining proper heat transfer for efficient cabin heating
- Ensuring reliable operation of the vehicle’s heating system during cold weather
Installation Notes and Tips
Before installation, verify the hose length and diameter match your vehicle’s specifications. The molded design of the Gates 18334 heater hose allows for straightforward replacement without the need for additional fittings. Ensure all clamps are securely tightened to prevent leaks. It is recommended to inspect surrounding components for wear or damage during replacement to maintain overall HVAC system integrity.
Quality Assurance and Warranty
Gates manufactures the Molded Heater Hose 18334 to meet or exceed OEM standards, ensuring reliable performance and durability. The EPDM material provides resistance to heat and automotive fluids, contributing to a longer service life. Please refer to Gates’ official warranty policy for specific coverage details.
| Brand | Gates |
| Part Number | 18334 |
| Position | Molded Heater Hose, Inverter Drain Hose-1 |
| Material | Epdm |
| End 1 Inside Diameter | .31 |
| End 1 Inside Diameter | 8 |
| End 2 Inside Diameter | .31 |
| End 2 Inside Diameter | 8 |
| Centerline Length | 16.9 |
| Centerline Length | 429 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 16.9 |
| Centerline Length (mm) | 429 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Lexus | RX450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2013 | Lexus | RX450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2013 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2012 | Lexus | RX450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2012 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2011 | Lexus | RX450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2011 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded Heater Hose |
| 2010 | Lexus | RX450h | 3.5L | V6 | ELECTRIC/GAS | Inverter Drain Hose-1 | Molded 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.