Aisin SPK-004 Power Steering Pump

Aisin SPK-004 Power Steering Pump

The Aisin SPK-004 is a hydraulic power steering pump built as a standard replacement for OE-style service. It features an aluminum housing, a splined pulley attachment, and a pulley included for a direct-fit repair on select Hyundai and Kia applications.

Key Features

• Precision OE manufactured power steering pump
• Hydraulic design for consistent steering assist
• Aluminum housing for durable, lightweight construction
• Pulley included with splined pulley attachment type
• Clamp-on inlet and fitting-style outlet connections
• Remote reservoir configuration with no reservoir included
• Metric unit specification with M16 - 1.5 thread size
• Standard replacement grade for OE-style service

Detailed Description

The Aisin SPK-004 power steering pump is engineered for drivers needing a replacement pump that matches OE-style fit and function. It is a hydraulic unit with one inlet and one outlet, a clamp-on inlet attachment, and a fitting outlet attachment. The remote reservoir layout and included pulley make it a practical choice for steering system service on 2001-2006 Kia Optima and 2001-2005 Hyundai Sonata models, including 2000 Hyundai Sonata from 04/01/2000. This part number, SPK-004, is also referenced in OE-style cross applications for the same vehicle coverage.

This part cross-references Cardone New 96-5257 for the same application.

What It Helps Fix

• Hard or heavy steering effort
• Whining or groaning from the power steering system
• Loss of hydraulic steering assist
• Leaks at the pump or hose connection points
• Poor steering response caused by a worn pump

Installation Notes and Tips

Verify the pulley style, thread size, inlet attachment, and remote reservoir layout before installation. Inspect the steering hoses, belt condition, and fluid for contamination before replacing the pump. Proper bleeding of the hydraulic system after installation helps restore smooth steering operation. Confirm vehicle-specific fitment for 2001-2006 Kia Optima and 2001-2005 Hyundai Sonata, including 2000 Hyundai Sonata from 04/01/2000, before ordering SPK-004.

Quality Assurance

Aisin manufactures this pump as a precision OE-style replacement component for steering system service. The aluminum housing, hydraulic construction, and OE-focused design support consistent replacement quality for Hyundai Sonata and Kia Optima applications.