ACKOJA A52-99-0003 Engine Coolant Thermostat

Engine Coolant Thermostat Overview

This ACKOJA engine coolant thermostat is an OE-grade replacement for a wide range of Hyundai and Kia applications. It is built for buyers who need accurate coolant temperature control and a direct-fit service part for common cooling system repairs.

Key Features

• OE-grade thermostat replacement for factory-style cooling system service.
• ACKOJA Expert Kits+ packaging groups the needed parts in one box.
• Engine coolant thermostat for maintaining proper operating temperature.
• Fits a broad range of Hyundai and Kia models with application-specific coverage.

Detailed Description

Part number A52-99-0003 is an ACKOJA engine coolant thermostat for vehicles that use an OE-style thermostat and housing service solution. The fitment covers Hyundai Accent, Elantra, Tiburon, Sonata, Santa Fe, Genesis Coupe, and Tucson, along with Kia Sportage, Optima, Sorento, Forte, Forte Koup, Forte5, Rondo, Soul, Magentis, Rio, Rio5, Spectra, Spectra5, and Sportage applications across the listed years. This part number, A52-99-0003, is suited to cooling system maintenance where stable thermostat operation is needed to support normal engine temperature regulation.

ACKOJA’s Expert Kits+ line focuses on supplying the needed parts together in one package, which helps streamline thermostat service on Hyundai and Kia platforms. For shoppers comparing cooling system parts for a Hyundai Sonata or Kia Sportage, this thermostat provides an OE-grade option with fitment coverage that spans multiple model years and engine bay configurations.

This part cross-references Four Seasons 78372 and Gates 38599 for the same application.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear.
• Delayed warm-up after a cold start.
• Temperature fluctuation caused by a sticking thermostat.
• Cooling system service needs on Hyundai and Kia vehicles.

Installation Notes

Verify the exact year, model, and notes in the fitment data before ordering. Some listed applications include production-date restrictions, such as “to” or “from” dates, so match those details to the vehicle before installation. Confirm the thermostat and housing configuration used on the vehicle to ensure correct service part selection.

Quality Assurance

ACKOJA identifies this part as OE-grade, and the Expert Kits+ line is organized to supply the needed parts in one box for service efficiency.