HomeHVAC > Hoses and PipesGates 19198 HVAC Heater Hose - Heater To Valve (Upper) or Pipe-1 To Thermostat
Part #: 19198

Gates 19198 HVAC Heater Hose - Heater To Valve (Upper) or Pipe-1 To Thermostat

Molded Heater Hose, Pipe-1 To Thermostat
⚙️ 32 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$42.60Free 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, Pipe-1 To Thermostat
🚗Fitment: Cadillac, Chevrolet, and GMC, STS, SRX, Astro, and Safari
🔄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 19198

The Gates Molded Heater Hose 19198 is designed for reliable HVAC system performance in select Cadillac, Chevrolet, and GMC vehicles. Engineered with 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 ozone resistance
  • Molded design for precise fit and easy installation
  • Centerline length of 34.4 inches (874 mm) for accurate replacement
  • Inside diameter of 0.63 inches (16 mm) on both ends
  • Compatible with Cadillac SRX and STS, Chevrolet Astro and Safari, and GMC models

Detailed Product Description

The Gates Molded Heater Hose 19198 is part of the Molded Heater Hose product line, which focuses on delivering pre-formed hoses that match original equipment specifications. This hose is molded to exact dimensions, including a centerline length of 34.4 inches (874 mm) and an inside diameter of 0.63 inches (16 mm) on both ends, ensuring a precise fit without the need for modifications. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and weathering, this hose maintains flexibility and durability under demanding HVAC conditions. The molded construction eliminates the need for additional fittings or connectors, reducing potential leak points and simplifying installation.

Compatible Vehicles and Applications

This HVAC heater hose is compatible with several GM vehicles, including:

  • Cadillac SRX and STS models
  • Chevrolet Astro and Safari vans
  • GMC models sharing the same platform

It is designed to replace worn or damaged heater hoses in these vehicles, restoring proper coolant flow to the heater core and ensuring effective cabin heating.

Common Issues Addressed by This Heater Hose

  • Leaking or cracked heater hoses causing coolant loss
  • Reduced heater core performance due to restricted coolant flow
  • Overheating issues related to faulty heater hose connections
  • Swelling or softening of old hoses from heat exposure
  • Difficulty in installation due to non-molded or generic hoses

Installation Notes and Tips

  • Verify hose dimensions and fitment with your vehicle before installation
  • Drain coolant system prior to hose removal to prevent spills
  • Inspect heater core and surrounding components for wear during replacement
  • Use proper clamps to secure hose ends and prevent leaks
  • Ensure the molded hose routing matches original equipment layout

Quality Assurance and Warranty

Gates Molded Heater Hose 19198 is manufactured to meet or exceed OEM standards for HVAC hoses. The EPDM material and molded design contribute to long service life and reliable performance. While specific warranty details may vary, Gates typically offers coverage against defects in material and workmanship, supporting professional-grade quality assurance for this part.

BrandGates
Part Number19198
PositionMolded Heater Hose, Pipe-1 To Thermostat
0
Yes
Branch Quantity0
Centerline Length34.4
Centerline Length874
Centerline Length (in)34.4
Centerline Length (mm)874
End 1 Inside Diameter.63
End 1 Inside Diameter16
End 2 Inside Diameter.63
End 2 Inside Diameter16
MaterialEPDM
MoldedYes
Number of Quick Connect Fittings0

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2009CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2009CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2008CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2008CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2007CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2007CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2006CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2006CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2005CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2005CadillacSTS4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2005ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2005GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2004CadillacSRX4.6LV8GASPipe-1 To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2004ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2004GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2003ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2003GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2002ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2002GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2001ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2001GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2000ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
2000GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1999ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1999GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1998ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1998GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1997ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1997GMCSafari4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1996ChevroletAstro4.3LV6GASHeater To Valve (Upper)Molded Heater Hose
1996GMCSafari4.3LV6GASHeater To Valve (Upper)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:

111981573016218189L1919864181879798895688988957399

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