HomeHVAC > Hoses and PipesGates 12259 HVAC Heater Hose - Heater (Center), Valve To Heater (Left) or Valve To Heater (Middle)
Part #: 12259

Gates 12259 HVAC Heater Hose - Heater (Center), Valve To Heater (Left) or Valve To Heater (Middle)

Molded Heater Hose, Heater (Center), Valve To Heater (Left), and Valve To Heater (Middle)
⚙️ 66 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater (Center), Valve To Heater (Left), and Valve To Heater (Middle)
🚗Fitment: BMW, 528i, 528i xDrive, 535i, 535i GT, 535i GT xDrive, 535i xDrive, 550i, 550i GT, 550i GT xDrive, 550i xDrive, 640i, 650i, 650i xDrive, 740i, 740Li, 750i, 750i xDrive, 750Li, 750Li xDrive, 760Li, M6, and M6 Gran Coupe
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Overview of Gates Molded Heater Hose 12259

The Gates Molded Heater Hose 12259 is engineered for reliable HVAC performance in select BMW models. Constructed from durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's heating system.

  • Made from high-quality EPDM rubber for heat and ozone resistance
  • Molded design for precise fit and leak prevention
  • Centerline length of 21.77 inches (553 mm) for exact replacement
  • Consistent inside diameter of 0.66 inches (17 mm) on both ends
  • Compatible with multiple BMW models including 528i, 535i, 550i, 640i, 650i, 740i, 750i, 760Li, and M6 variants

Detailed Product Description

The Gates Molded Heater Hose 12259 is part of the Molded Heater Hose product line, designed specifically to meet the demanding requirements of automotive HVAC systems. The molded construction provides a precise shape that matches OEM specifications, reducing the risk of leaks and ensuring a secure connection within the heating system. Made from EPDM, this hose offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain system integrity over time. With a centerline length of 21.77 inches (553 mm) and uniform inside diameters of 0.66 inches (17 mm) on both ends, it is engineered to fit seamlessly in the heating circuits of various BMW models.

Compatible BMW Models and Applications

  • BMW 528i and 528i xDrive
  • BMW 535i, 535i GT, 535i GT xDrive, and 535i xDrive
  • BMW 550i, 550i GT, 550i GT xDrive, and 550i xDrive
  • BMW 640i, 650i, and 650i xDrive
  • BMW 740i, 740Li, 750i, 750i xDrive, 750Li, 750Li xDrive, and 760Li
  • BMW M6 and M6 Gran Coupe

Common Issues Addressed by This Heater Hose

  • Replacement of cracked or leaking heater hoses causing coolant loss
  • Resolving heater core flow restrictions due to deteriorated hoses
  • Preventing overheating issues related to faulty heater hose connections
  • Eliminating coolant odors inside the cabin caused by hose leaks
  • Maintaining proper HVAC system performance in BMW 5, 6, and 7 Series models

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns from hot coolant. Verify the hose routing matches the original to prevent kinks or interference with other components. Use appropriate clamps to secure the hose ends firmly, and inspect all connections for leaks after installation. The molded design of this heater hose facilitates a straightforward replacement process when matched to the correct BMW model.

Quality Assurance and Warranty

Gates Molded Heater Hose 12259 is manufactured to meet strict OEM standards for durability and performance. The EPDM material and molded construction contribute to a reliable, long-lasting HVAC hose solution. While specific warranty details are not provided, Gates products typically adhere to industry quality controls to ensure customer satisfaction and part longevity.

BrandGates
Part Number12259
PositionMolded Heater Hose, Heater (Center), Valve To Heater (Left), and Valve To Heater (Middle)
MaterialEpdm
End 1 Inside Diameter.66
End 1 Inside Diameter17
End 2 Inside Diameter.66
End 2 Inside Diameter17
Centerline Length21.77
Centerline Length553
Branch Quantity0
9839Yes
98450
Centerline Length (in)21.77
Centerline Length (mm)553
MoldedYes
Number of Quick Connect Fittings0

This part fits 66 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2019BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2018BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2018BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2017BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2017BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2016BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2016BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2015BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2015BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2014BMW528i2.0LL4GASValve To Heater (Left)Molded Heater Hose
2014BMW528i xDrive2.0LL4GASValve To Heater (Left)Molded Heater Hose
2014BMW535i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2014BMW535i GT3.0LL6GASValve To Heater (Left)Molded Heater Hose
2014BMW535i GT xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2014BMW535i xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2014BMW550i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2014BMW550i GT4.4LV8GASValve To Heater (Left)Molded Heater Hose
2014BMW550i GT xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2014BMW550i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2014BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2014BMWM6 Gran Coupe4.4LV8GASHeater (Center)Molded Heater Hose
2013BMW528i2.0LL4GASValve To Heater (Left)Molded Heater Hose
2013BMW528i xDrive2.0LL4GASValve To Heater (Left)Molded Heater Hose
2013BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2012BMW528i2.0LL4GASValve To Heater (Left)Molded Heater Hose
2012BMW528i xDrive2.0LL4GASValve To Heater (Left)Molded Heater Hose
2012BMW535i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2012BMW535i GT3.0LL6GASValve To Heater (Left)Molded Heater Hose
2012BMW535i GT xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2012BMW535i xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2012BMW550i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW550i GT4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW550i GT xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW550i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW640i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2012BMW650i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW650i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW750i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW750i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW750Li4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW750Li xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2012BMW760Li6.0LV12GASValve To Heater (Middle)Molded Heater Hose
2012BMWM64.4LV8GASHeater (Center)Molded Heater Hose
2011BMW528i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW535i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW535i GT3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW535i GT xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW535i xDrive3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW550i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW550i GT4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW550i GT xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW550i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW740i3.0LL6GASValve To Heater (Left)Molded Heater Hose
2011BMW740Li3.0LL6GASValve To Heater (Left)With Auxiliary Heater; Molded Heater Hose
2011BMW750i4.4LV8ELECTRIC/GASValve To Heater (Left)Molded Heater Hose
2011BMW750i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW750i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW750Li4.4LV8ELECTRIC/GASValve To Heater (Left)Molded Heater Hose
2011BMW750Li4.4LV8GASValve To Heater (Left)Molded Heater Hose
2011BMW750Li xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2010BMW750i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2010BMW750i xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2010BMW750Li4.4LV8GASValve To Heater (Left)Molded Heater Hose
2010BMW750Li xDrive4.4LV8GASValve To Heater (Left)Molded Heater Hose
2009BMW750i4.4LV8GASValve To Heater (Left)Molded Heater Hose
2009BMW750Li4.4LV8GASValve To Heater (Left)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:

1325916740M64539119168R19496

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