HomeBelts and Cooling > Hoses and PipesGates 51911 Radiator Coolant Hose - Upper
Part #: 51911

Gates 51911 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Upper
🚗Fitment: Audi, Q7
🔄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 Coolant Hose 51911

The Gates Molded Coolant Hose 51911 is designed specifically for Audi Q7 models, providing reliable radiator coolant flow. Constructed from durable EPDM, plastic, and steel materials, this molded hose ensures consistent performance under demanding engine conditions.

  • Compatible with Audi Q7 radiator coolant systems
  • Constructed from EPDM, plastic, and steel for durability
  • End 1 inside diameter: 1.25 inches (32 mm)
  • End 2 inside diameter: 1.49 inches (38 mm)
  • Centerline length: 31.89 inches (810 mm)
  • Includes female quick connector and outlet modular components
  • Does not contain a spring, ensuring stable coolant flow
  • Part number 51911 for precise identification

Detailed Product Description

The Gates Molded Coolant Hose 51911 is engineered to meet the specific cooling system requirements of the Audi Q7. Its construction from EPDM rubber, plastic, and steel materials provides resistance to heat, pressure, and chemical exposure commonly found in automotive cooling systems. The hose features two different inside diameters—1.25 inches (32 mm) on one end and 1.49 inches (38 mm) on the other—allowing for a secure fit to corresponding radiator and engine connections. With a centerline length of 31.89 inches (810 mm), this molded hose is designed to maintain proper coolant flow without kinks or leaks. The inclusion of modular components such as a female quick connector and outlet facilitates straightforward integration into the vehicle’s cooling system.

The Molded Coolant Hose product line by Gates focuses on precision-engineered hoses that match exact OEM specifications. This line emphasizes durability and fitment accuracy, reducing the risk of coolant leaks and system failures. The 51911 part is a direct replacement hose that supports the integrity of the Audi Q7’s cooling system.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Audi Q7 vehicles
  • Prevention of coolant leaks caused by hose degradation or improper fit
  • Restoration of proper coolant flow to avoid engine overheating
  • Addressing hose failures due to heat and pressure exposure
  • Ensuring secure connections with modular female quick connectors

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51911, ensure the hose is routed without sharp bends or kinks to maintain optimal coolant flow. Verify that the inside diameters match the radiator and engine fittings for a secure seal. The modular female quick connector should be properly engaged to prevent leaks. It is recommended to inspect adjacent cooling system components during installation for any signs of wear or damage.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51911 to meet stringent quality standards, ensuring reliable performance in the Audi Q7 cooling system. The materials used—EPDM, plastic, and steel—are selected for their resistance to heat, pressure, and chemical exposure. While specific warranty details are not provided, Gates products typically adhere to industry standards for durability and fitment accuracy.

BrandGates
Part Number51911
PositionMolded Coolant Hose, Upper
MaterialEpdm, plastic, steel
End 1 Inside Diameter1.25
End 1 Inside Diameter32
End 2 Inside Diameter1.49
End 2 Inside Diameter38
Contains SpringNo
Centerline Length31.89
Centerline Length810
Branch Quantity0
9839Yes
98451
Modular ComponentsFemale quick connector, outlet
Modular HoseYes

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2016AudiQ73.0LV6DIESELUpperMolded Coolant Hose
2015AudiQ73.0LV6DIESELUpperMolded Coolant Hose
2014AudiQ73.0LV6DIESELUpperMolded Coolant Hose
2013AudiQ73.0LV6DIESELUpperMolded Coolant Hose
2012AudiQ73.0LV6DIESELUpperMolded Coolant 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:

4L0121101519117L8121101B

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