HomeHVAC > Hoses and PipesGates 12304 HVAC Heater Hose - Heater Outlet
Part #: 12304

Gates 12304 HVAC Heater Hose - Heater Outlet

Molded Heater Hose, Heater Outlet
⚙️ 7 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$19.87Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater Outlet
🚗Fitment: Nissan, Altima
🔄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 12304 for Nissan Altima

The Gates Molded Heater Hose 12304 is designed specifically for Nissan Altima models, providing reliable HVAC system performance. Constructed from durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service.

  • Constructed from high-quality EPDM rubber for heat and chemical resistance
  • Molded design for precise fit and easy installation
  • Centerline length of 19.43 inches (464 mm) for accurate replacement
  • Consistent inside diameter of 0.75 inches (19 mm) on both ends
  • Compatible with Nissan Altima HVAC systems requiring part number 12304

Detailed Product Description

The Gates Molded Heater Hose 12304 is engineered to meet the exact specifications required for the Nissan Altima's heating and ventilation system. The hose features a molded construction that maintains its shape and fit, reducing the risk of leaks or disconnections. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, this heater hose withstands the demanding conditions within the engine bay. Both ends of the hose have an inside diameter of 0.75 inches (19 mm), ensuring compatibility with OEM fittings and connectors. The centerline length measures 19.43 inches (464 mm), matching factory dimensions for a direct replacement without modification.

Applications and Common Issues Addressed

  • Replacement of worn or cracked heater hoses in Nissan Altima HVAC systems
  • Resolving coolant leaks that affect cabin heating performance
  • Preventing overheating caused by compromised heater hose integrity
  • Eliminating rattling or hose detachment due to improper fit
  • Maintaining proper coolant flow for efficient heater core operation

Installation Notes and Tips

When installing the Gates Molded Heater Hose 12304, 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, avoiding overtightening that could damage the hose. Inspect adjacent components for wear or damage during replacement to maintain overall HVAC system reliability.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose line to meet stringent automotive standards, ensuring durability and performance. The EPDM material and molded design contribute to extended service life under typical operating conditions. While specific warranty details are not provided, Gates products generally adhere to industry quality controls and are backed by the brand's reputation for reliability.

BrandGates
Part Number12304
PositionMolded Heater Hose, Heater Outlet
MaterialEpdm
End 1 Inside Diameter.75
End 1 Inside Diameter19
End 2 Inside Diameter.75
End 2 Inside Diameter19
Centerline Length19.43
Centerline Length464
Branch Quantity0
9839Yes
98450
Centerline Length (in)19.43
Centerline Length (mm)464
MoldedYes
Number of Quick Connect Fittings0

This part fits 7 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
2018NissanAltima2.5LL4GASHeater OutletMolded Heater Hose
2017NissanAltima2.5LL4GASHeater OutletMolded Heater Hose
2016NissanAltima2.5LL4GASHeater OutletMolded Heater Hose
2015NissanAltima2.5LL4GASHeater OutletMolded Heater Hose
2014NissanAltima2.5LL4GASHeater OutletMolded Heater Hose
2013NissanAltimaSedan2.5LL4GASHeater OutletMolded Heater Hose
2012NissanAltimaSedan2.5LL4GASHeater OutletMolded 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:

1330418529L924103TA0A

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