Description

21443-03011 OIL SEAL: Rear Main Guide

Transmission Interface Protection | i10, i20 & Picanto Kappa

The 21443-03011 OIL SEAL is the essential engine component designed to restore the fluid integrity of your Hyundai or Kia Kappa series engine. This professionally engineered unit ensures maximum lubricant retention, providing a clean transmission housing and superior structural integrity.

21443-03011 Fitment Details

  • Hyundai i10 / Grand i10: 1.0L / 1.2L Kappa
  • Hyundai i20 / Bayon: 1.2L Engine
  • Kia Picanto / Morning: 1.0L / 1.2L
  • Kia Rio / Stonic: 1.2L Kappa Models
  • Part Number: 21443-03011

Technical Product Specifications

  • Material: FKM (Viton) / High-Temp Rubber
  • Type: Rear Main Crankshaft Seal
  • Inside Diameter: OE Kappa Spec
  • Features: Dust Lip & Tension Spring
  • Standard: OE Precision Grade

Choosing a Quality 21443-03011 OIL SEAL

Choosing the correct replacement part is vital for protecting your clutch from oil contamination. Using a premium 21443-03011 OIL SEAL ensures that your engine stays lubricated and efficient, preventing costly transmission-out repairs caused by persistent leaks. We strongly recommend browsing our Clutch Kits and Oil Pans to ensure a complete and professional engine seal refresh.

Check Your Professional Fitment

To ensure this oil seal is the perfect fit for your specific 1.0L or 1.2L engine variant, please contact us for professional verification using your chassis number.


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Note: Technical data for 21443-03011 is for reference; please verify with your engine code before installation.

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Questions and Answers

What is the primary function of this sealing component?
It creates a high-pressure dynamic barrier around the rear of the crankshaft to prevent engine oil from leaking out into the transmission area.
Which vehicles utilize the 21443-03011 OIL SEAL?

It is a standard fitment for the 1.0L and 1.2L Kappa engines found in the Hyundai i10, i20, Grand i10, and Kia Picanto (TA/JA models).

What are the common symptoms of a failing rear main seal?

The most common sign is oil dripping from the junction where the engine meets the transmission, which can eventually lead to clutch slipping in manual models.

Is this component a direct replacement for the original part?

Absolutely. This part is manufactured to meet exact OE specifications using heat-resistant synthetic rubber (FKM/Viton) for a professional, leak-free fit.

Why is the 21443-03011 seal so important during a clutch change?

Because this seal is only accessible when the transmission is removed, it is a professional "best practice" to replace it during clutch service to prevent future leaks.


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