HomeBelts and Cooling > Hoses and PipesGates 51388 Radiator Coolant Hose - Upper
Part #: 51388

Gates 51388 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
⚙️ 3 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$30.22Free 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 Coolant Hose, Upper
🚗Fitment: Acura, RDX
🔄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 51388

The Gates Molded Coolant Hose 51388 is designed specifically for Acura RDX models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this radiator coolant hose ensures long-lasting performance under demanding conditions.

  • Made from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and secure connections
  • Centerline length of 13.97 inches (355 mm) for accurate installation
  • Consistent inside diameter of 1.19 inches (30 mm) on both ends
  • Does not contain a spring or quick connect fittings

Detailed Product Description

This radiator coolant hose, part number 51388, is engineered to meet the specifications required by Acura RDX vehicles. The molded construction ensures a precise shape that fits the cooling system without the need for additional modifications. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, which helps maintain system integrity and prevents premature failure. Both ends of the hose have an inside diameter of 1.19 inches (30 mm), providing a consistent flow path for coolant circulation. With a centerline length of 13.97 inches (355 mm), it fits the designated routing within the engine bay accurately.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on delivering hoses that are pre-formed to match specific vehicle applications. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or kinks. The molded design of part 51388 ensures compatibility with the Acura RDX cooling system, maintaining proper coolant flow and system pressure.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Acura RDX models
  • Resolving coolant leaks caused by hose deterioration or damage
  • Preventing overheating issues due to compromised coolant flow
  • Maintaining engine temperature stability for optimal performance
  • Ensuring a secure and leak-free connection within the cooling system

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51388, ensure the engine is cool to avoid burns or injury. Verify that the hose routing matches the original path to prevent kinks or interference with other engine components. Use appropriate clamps to secure both ends of the hose firmly. Inspect adjacent components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51388 to meet strict quality standards, ensuring durability and reliable performance. The EPDM material and molded design contribute to resistance against heat, pressure, and chemical exposure. While specific warranty details are not provided, Gates products typically adhere to industry standards for automotive replacement parts.

BrandGates
Part Number51388
PositionMolded Coolant Hose, Upper
MaterialEpdm
End 1 Inside Diameter1.19
End 1 Inside Diameter30
End 2 Inside Diameter1.19
End 2 Inside Diameter30
Contains SpringNo
Centerline Length13.97
Centerline Length355
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2018AcuraRDX3.5LV6GASUpperMolded Coolant Hose
2017AcuraRDX3.5LV6GASUpperMolded Coolant Hose
2016AcuraRDX3.5LV6GASUpperMolded 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:

1950158KH0022971M51388

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