HomeHVAC > Hoses and PipesGates 12311 HVAC Heater Hose - Heater To Pipe-2
Part #: 12311

Gates 12311 HVAC Heater Hose - Heater To Pipe-2

Molded Heater Hose, Heater To Pipe-2
⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater To Pipe-2
🚗Fitment: Toyota, Highlander
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Molded Heater Hose 12311

The Gates Molded Heater Hose 12311 is designed specifically for Toyota Highlander models, providing reliable HVAC system performance. Constructed from durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's heating system.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and easy installation
  • Inside diameter of 0.62 inches (16 mm) on both ends
  • Centerline length of 8.48 inches (215 mm) for accurate fitment
  • Compatible with Toyota Highlander HVAC systems

Detailed Product Description

The Gates Molded Heater Hose 12311 is engineered to meet the exact specifications required for the Toyota Highlander HVAC system. Made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids, this hose maintains integrity under demanding operating conditions. The molded construction ensures a precise shape and fit, reducing the risk of leaks and improving system efficiency. Both ends feature an inside diameter of 0.62 inches (16 mm), matching OEM dimensions for seamless integration. With a centerline length of 8.48 inches (215 mm), this hose fits perfectly within the vehicle’s heating circuit without the need for modifications.

About the Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on delivering pre-formed hoses that match OEM specifications for various vehicle models. These hoses are designed to simplify installation and improve reliability by eliminating the need for bending or cutting. The molded design of the 12311 part number ensures consistent performance and durability, making it a suitable replacement for the Toyota Highlander’s HVAC heater hose.

Common Applications and Problem Solving

  • Replacement of cracked or leaking heater hoses in Toyota Highlander HVAC systems
  • Restoring proper coolant flow to the heater core for effective cabin heating
  • Eliminating coolant leaks that cause engine overheating or loss of heat
  • Addressing hose degradation due to heat and chemical exposure over time
  • Ensuring a secure, OEM-spec fit to prevent HVAC system malfunctions

Installation Notes and Tips

When installing the Gates Molded Heater Hose 12311, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the molded shape for proper fitment. Use appropriate clamps to secure both ends with 0.62 inch (16 mm) inside diameter connections. Inspect surrounding components for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 12311 to meet strict quality standards, using durable EPDM material and precise molding techniques. This part is designed to provide reliable service life consistent with OEM requirements. While specific warranty details are not provided, Gates products typically adhere to industry standards for automotive replacement parts.

BrandGates
Part Number12311
PositionMolded Heater Hose, Heater To Pipe-2
MaterialEpdm
End 1 Inside Diameter.62
End 1 Inside Diameter16
End 2 Inside Diameter.62
End 2 Inside Diameter16
Centerline Length215
Centerline Length8.48
Branch Quantity0
9839Yes
98450
Centerline Length (in)8.48
Centerline Length (mm)215
MoldedYes
Number of Quick Connect Fittings0

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2019ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2018ToyotaHighlander2.7LL4GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2018ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2017ToyotaHighlander2.7LL4GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2017ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2016ToyotaHighlander2.7LL4GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2016ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2015ToyotaHighlander2.7LL4GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2015ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2014ToyotaHighlander2.7LL4GASHeater To Pipe-2Fitment note: With Rear Heater; Molded Heater Hose
2014ToyotaHighlander3.5LV6GASHeater To Pipe-2Fitment note: With Rear Heater; 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:

1331114962S872450E290

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.