Cometic H1090SP2045S MLS Head Gasket Toyota Bore - 4A-GE 4AG-GE 16V 82mm 045in

The Cometic H1090SP2045S is a Multi-Layer Steel (MLS) cylinder head gasket designed for the Toyota 4A-GE (4AG-GE) 1.6L 16-valve engine. Featuring an 82mm bore diameter and 0.045-inch (1.14mm) compressed thickness, this gasket is engineered for performance builds requiring reliable, high-output sealing without the use of supplemental sealants.

Key Features:

• Multi-Layer Steel (MLS) construction — comprised of multiple layers of stainless steel for superior strength, rebound, and corrosion resistance
• Viton-coated outer layers — embossed and coated on both sides with Viton fluoroelastomer rubber, heat resistant to 250°C / 482°F
• Uncoated stainless steel center/shim layer — provides precise thickness control and structural rigidity
• No re-torque required — embossing design promotes even clamp load across the sealing surface, reducing bore distortion
• No sealants required — MLS design provides a complete seal straight from installation
• Compatible with aluminum-to-aluminum and aluminum-to-cast-iron block combinations — resists the shearing forces created by dissimilar materials
• 82mm bore diameter — suited for mildly overbored 4A-GE applications
• 0.045-inch (1.14mm) compressed thickness — allows tuning of compression ratio during engine rebuilds
• Suitable for turbocharged, supercharged, nitrous, and naturally aspirated applications

Cometic MLS head gaskets are a trusted choice for engine builders seeking race-proven sealing technology for the Toyota 4A-GE 16-valve platform. The H1090SP2045S is sold as a single gasket.