Product Emphasis: High-end engine cooling system line designed to transport boiling permanent coolant and antifreeze mixture from the engine cylinder head directly back to the radiator tank while preventing unexpected pressure drops.
Original Number: 25414-4M100 / 254144M100.
Dimensions: Multi-curved structural molding configuration precision-engineered to custom-fit compact spaces, weighing approximately 8.81 ounces.
OEM Standard Size: Pure 1:1 original equipment structural specification copying factory diameter profiles for an airtight, stress-free fit without custom modification.
Vehicle Adaptability: Configured explicitly for modern fuel-efficient passenger cars and crossover utility networks requiring optimal interior climate regulation.
Brand Compatibility: Factory genuine parts standard developed primarily for Beijing Hyundai and Dongfeng Yueda Kia core model lines, while universally acting as a premium replacement layout across specific regional aftermarket lines.
Years Covered: Tailored across production lifecycles spanning from 2015 through 2022 vehicle models.
Models Covered: Fully tailored for commuter platforms, including mid-size crossovers, compact urban sedans, and regional utility trims.
Material Matrix: Reinforced heat-hardened EPDM rubber compound matrix fortified with a high-tensile interior woven synthetic fiber braid.
System Placement: Front engine compartment bay, upper radiator core inlet connection point.
Operational Temperature Range: Retains structural elasticity safely from -40°F up to 275°F (-40°C to 135°C).
Maximum System Pressure: Engineered to comfortably withstand continuous thermal loop expansion surges up to 60 PSI.
Fitment Classification: Direct Drop-in Bolt-on Replacement.
Exterior Finish: Matte Black protective rubber shell marked with high-visibility factory alignment indicators.
3. Product Features
Flawless Pre-Formed Layout: Engineered with complex sharp bends that mimic factory geometry perfectly, preventing the line from sagging, rubbing on abrasive frame parts, or contacting high-heat exhaust structures.
Electrochemical Wear Resistance: Specially treated chemical composition blocks electrochemical degradation (ECD), stopping electrical micro-currents inside the coolant from pitting the walls and creating pinhole leaks.
Airtight Port Seal: Features tightly controlled inner port tolerances that clamp down perfectly over aluminum radiator pipe necks, removing risks of vacuum dropouts and slow fluid weeping.
Kink-Proof Fluid Channeling: The high-strength inner braid ensures the interior fluid path stays completely open and unblocked during heavy engine vibrations and severe freezing cycles.
Kia Cross-Compatible Series (Select Sedan & Crossover Trims) — Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022
Alternative Replacement Lines (Verify individual regional sub-trim adaptations by performing a direct parts check via 17-digit VIN) — Years: 2018, 2019, 2020, 2021
5. Frequently Asked Questions (FAQ)
Q1: How can I verify that this specific 25414-4M100 upper hose perfectly matches my exact sub-model?
A1: The most accurate verification protocol is to check this part number directly against your vehicle's 17-digit VIN (Vehicle Identification Number) with an official authorized dealership or parts catalog database to guarantee cross-compatibility.
Q2: Can I install a straight universal radiator hose instead of using this pre-shaped 25414-4M100 assembly?
A2: This is highly discouraged. Universal straight hoses will bend and kink when forced into the complex angles of the engine bay, completely choking off the engine cooling flow and triggering sudden cylinder head warping.
Q3: What are the main engine issues that indicate my factory upper radiator hose requires a replacement?
A3: Drivers must look out for frequent dashboard engine overheating warnings, visible crusty pink or green fluid residue around hose junctions, sudden drops in the expansion tank fluid level, or if the rubber feels sponge-like when manually squeezed.