Description
20910-25B00 Full Gasket Compatibility
20910-25B00 Full Gasket Hyundai & Kia 2.4L Theta Engine Series (2004–2010 Platforms)
The 20910-25B00 FULL GASKET (also referenced as 20910-25B00A) is a premium overhaul solution specifically engineered for the 2.4L Theta DOHC architecture. This comprehensive kit provides a complete sealing solution for both the cylinder head and engine block, utilizing advanced multi-layer steel (MLS) head gaskets to handle the thermal demands of mid-size sedans and SUVs. Ideal for maintaining OE-level performance in North American and international models built during the late 2000s. Browse our engine component catalog or explore our full range of Hyundai and Kia parts to complete your 20910-25B00 GASKET SET installation.
20910-25B00: Hyundai Models
- Sonata (NF): 2004–2010 (2.4L)
- Grandeur (TG): 2005–2010 Series
- Origin: Fits Korean & Alabama-built Models
- Engine: 2.4L Theta Petrol
- Quality: OE-Precision Overhaul Grade
- Reliability: High-Compression Sealing
20910-25B00: Kia Models
- Optima / Magentis: 2005–2010
- Rondo / Carens: 2006–2010
- Forte: Select 2.4L Variants
- Spec: Exact Port Alignment
- Material: Heat-Stabilized Elastomers
- Standard: Professional Shop Grade
Interchangeable Part Numbers: 20910-25B00 / 2091025B00 / 20910-25B00A
The Theta engine has various regional build configurations, particularly between Korean and Alabama-built units. Please verify fitment for your 20910-25B00 FULL GASKET KIT using your VIN.
Note: 20910-25B00 FULL GASKET images are for illustration. Visit our FAQ page for support.



















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