Part #: SPK-004

Aisin SPK-004 Power Steering Pump

⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Hyundai and Kia, Optima and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Power Steering Pump for Hyundai and Kia Vehicles

The Aisin SPK-004 power steering pump is designed to restore hydraulic steering performance in select Hyundai and Kia models. Engineered with a durable aluminum housing and a splined pulley, this pump ensures consistent power steering fluid flow for smooth and responsive steering.

  • Compatible with Hyundai Optima and Sonata models
  • Hydraulic type power steering pump with remote reservoir support
  • Includes pulley with splined attachment for secure fitment
  • Clamp-on inlet and fitting outlet attachment types
  • Standard replacement grade with aluminum housing for durability
  • Single inlet and outlet ports with M16 - 1.5 thread size

Product Features and Specifications

The Aisin SPK-004 power steering pump features a metric design tailored for specific Hyundai and Kia vehicles. It includes a pulley with a splined attachment type, ensuring a precise and secure connection to the engine drive system. The pump uses a clamp-on inlet and fitting outlet attachment, facilitating straightforward integration with existing power steering hoses. Constructed with an aluminum housing, this pump offers corrosion resistance and long service life. It supports a remote reservoir setup but does not include the reservoir or mounting hardware, so these components must be sourced separately if needed.

Applications and Common Issues Addressed

  • Restores hydraulic power steering function in Hyundai Optima and Sonata
  • Replaces worn or leaking power steering pumps causing steering difficulty
  • Eliminates whining or groaning noises from failing pump units
  • Resolves low power steering fluid pressure affecting steering responsiveness
  • Addresses fluid leaks due to damaged inlet or outlet fittings

Installation Notes and Tips

When installing the Aisin SPK-004 power steering pump, ensure compatibility with your Hyundai Optima or Kia Sonata model year and engine type. The pump’s pulley is splined and includes the pulley, so alignment with the drive belt is critical. Use appropriate tools to secure the clamp-on inlet and fitting outlet connections to prevent leaks. Since mounting hardware and reservoir are not included, verify existing components are in good condition or acquire replacements as necessary. Bleed the power steering system properly after installation to avoid air pockets and ensure optimal steering performance.

Quality Assurance and Warranty Information

Aisin manufactures the SPK-004 power steering pump to meet standard replacement grade specifications, ensuring reliable operation and durability. The aluminum housing provides resistance to corrosion and wear. While specific warranty details are not provided, Aisin products typically adhere to industry standards for quality and performance. For peace of mind, confirm warranty coverage with your parts distributor or installer prior to purchase.

BrandAisin
Part NumberSPK-004
11589Metric
Pulley IncludedYes
Inlet Attachment TypeClamp-on
Outlet Attachment TypeFitting
TypeHydraulic
Pulley Attachment TypeSplined
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Housing MaterialAluminum
Inlet Quantity1
Outlet Quantity1
Reservoir IncludedNo
Thread SizeM16 - 1.5
Filter IncludedNo
Remote ReservoirYes
Reservoir Cap IncludedNo
9898No

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006KiaOptima2.4LL4N/A
2005HyundaiSonata2.4LL4N/A
2005KiaOptima2.4LL4N/A
2004HyundaiSonata2.4LL4N/A
2004KiaOptima2.4LL4N/A
2003HyundaiSonata2.4LL4N/A
2003KiaOptima2.4LL4N/A
2002HyundaiSonata2.4LL4N/A
2002KiaOptima2.4LL4N/A
2001HyundaiSonata2.4LL4N/A
2001KiaOptima2.4LL4N/A
2000HyundaiSonata2.4LL4N/AFrom 04/01/2000

* 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:

21-525757100-38100572796-5257990-0229N990-0229

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