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HYUNDAI 25620-2W500 ATF Heater - OE Replacement for Automatic Transmission

HYUNDAI 25620-2W500 ATF Heater - OE Replacement for Automatic Transmission

25620-2W500 ATF Heater | Direct Fit for HYUNDAI/KIA Automatic Transmissions

Introduction

We supply the HYUNDAI 25620-2W500 ATF Heater—a premium OE replacement part designed for HYUNDAI and KIA automatic transmissions. It regulates transmission fluid temperature to ensure smooth shifting and extend transmission life.

Compatible Vehicles

This ATF heater fits:

HYUNDAI Sonata (2015-2020) 6-Speed Automatic Transmission
HYUNDAI Santa Fe (2016-2021) 8-Speed Automatic Transmission
HYUNDAI Tucson (2016-2020) 6-Speed Automatic Transmission
KIA Sorento (2016-2020) 8-Speed Automatic Transmission
KIA Optima (2015-2020) 6-Speed Automatic Transmission

Key Features

OE-Matched Fit: Exact replacement for 25620-2W500—no modifications needed, direct plug-and-play installation.
High-Efficiency Heating: Rapidly warms ATF (Automatic Transmission Fluid) in cold conditions, preventing fluid thickening.
Durable Construction: Heat-resistant plastic housing + corrosion-resistant heating element, built to withstand transmission fluid pressure.
Transmission Protection: Maintains optimal ATF temperature (200-220°F) for smooth shifting and reduced wear.

Customer Benefits

12-Month Warranty: Free replacement/refund for manufacturing defects.
Fast Global Shipping: 3-7 business days delivery (DHL/EMS, trackable).
Wholesale Discounts: Favorable pricing for repair shops and auto parts dealers.
Technical Support: Free fitment verification and installation guidance.

Common signs of a faulty ATF heater: hard shifting in cold weather, transmission fluid overheating, or check engine/transmission warning lights. This 25620-2W500 part restores transmission performance.

25620-2W500 ATF Heater Installation & Maintenance Guide

Installation Preparation
- Disconnect the negative battery terminal for safety.
- Drain transmission fluid (or work with a partially drained system to minimize spillage).
- Gather tools: socket wrench set, torque wrench, and new transmission fluid.
Step-by-Step Installation
- Locate the ATF heater (typically mounted on the transmission fluid pan or cooler lines).
- Disconnect electrical connectors and fluid lines (mark lines for correct reinstallation).
- Remove old heater mounting bolts, then clean the mounting surface.
- Install the new 25620-2W500 heater, tighten bolts to 15-20 N·m.
- Reconnect lines and electrical connectors, refill with recommended ATF, and test for leaks.
Maintenance Tips
- Inspect the heater every 40,000 km for electrical connector damage or fluid leaks.
- Replace transmission fluid per the vehicle’s maintenance schedule (to prevent heater clogging).
- Test heater functionality in cold weather: monitor ATF temperature after startup.