OIL SEAL Description
21443-2G000 OIL SEAL: Hyundai-Kia Theta II Guide
Rear Crankshaft Main Seal | Sonata, Santa Fe, Optima & Sorento
The 21443-2G000 OIL SEAL is the essential engine component designed to restore the lubricant integrity of your Hyundai or Kia 2.0L / 2.4L Theta II engine. This professionally engineered seal ensures maximum protection against oil leaks at the rear of the block, consistent crankcase pressure, and superior structural integrity under the high thermal demands of modern multi-valve powertrains. This component is critical for maintaining the professional performance of your vehicle’s original engine configuration.
21443-2G000 OIL SEAL Fitment
- Hyundai Sonata (YF/LF): 2.0L / 2.4L
- Hyundai Santa Fe (DM): 2.4L Theta II
- Kia Optima (TF/JF): 2.0L / 2.4L
- Kia Sorento (XM/UM): 2.4L GDI Models
- OE Part Number: 21443-2G000
Technical Engine Specs
- Engine Family: Theta II / Theta II GDI
- Position: Rear Main (Crankshaft)
- Material: Advanced FKM Heat-Resistant Elastomer
- Design: High-Pressure Internal Sealing Lip
- Standard: OE Precision Engineering
Benefits for Drivetrain Protection
Choosing this specific sealing unit is vital for protecting your vehicle’s transmission and clutch assembly from oil soak. Because Theta II engines utilize high oil pressures for VVT operation, selecting a premium seal ensures that no oil bypasses the rear flange, preventing slipping in the Transmission System. Proper crankcase ventilation is key; therefore, we strongly recommend browsing our Premium Oil Filters to ensure optimal pressure balance.
Furthermore, to maximize the performance of your powertrain, you may also consider inspecting our Fully Synthetic 5W-30 Oils. Vehicle longevity often depends on the perfect harmony between oil viscosity and seal flexibility. While replacing your rear main seal, it is professional practice to verify the condition of the crankshaft surface.
The Theta II engine has undergone various revisions across different production years. To ensure the 21443-2G000 OIL SEAL is the perfect fit for your specific vehicle, please contact us for professional verification using your chassis number.
Note: Images shown are for illustration purposes only and may not be an exact representation of the product.
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