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The Cometic Mitsubishi 4G63/4G63T Valve Cover Gasket Kit is intended for the verified vehicle applications listed below. Match manufacturer part number C4691, exact engine family, bore, thickness, material, sealing surfaces, fasteners, and every product note before ordering.
Key Features
- Steel Torque Limiting Frame – Prevents over-tightening and maintains consistent compression.
- High Heat & Pressure Resistance – Built for both stock and high-performance applications.
- Advanced rubber-over-steel design for superior sealing and reusability.
- Yes, Cometic’s rubber-over-steel design offers far better sealing, reusability, and resistance to blowout and vacuum leaks.
- Superior to Cork/Paper Gaskets – Resists blowout, drying, and vacuum leaks.
- Designed for Mitsubishi 4G63 and 4G63T engines (Eclipse, Galant VR-4, Lancer Evolution, etc.).
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1990-1992 | Eagle | Talon | Base |
| 1990-1992 | Eagle | Talon | TSi |
| 1990-1992 | Mitsubishi | Eclipse | GS |
| 1990-1992 | Mitsubishi | Eclipse | GST |
| 1990-1992 | Mitsubishi | Eclipse | GSX |
| 1989-1992 | Mitsubishi | Galant | GS |
| 1991-1992 | Mitsubishi | Galant | GSR |
| 1990-1992 | Mitsubishi | Galant | GSX |
| 1991-1992 | Mitsubishi | Galant | VR-4 |
Specifications
| Manufacturer | Cometic Gasket |
|---|---|
| Manufacturer Part Number | C4691 |
| Product Type | Valve Cover Gaskets |
| Fitment Type | Vehicle specific, verify engine configuration |
What's Included
One new Cometic gasket product in the exact configuration and quantity identified by manufacturer part number C4691. Fasteners, sealants, fluids, companion gaskets, tools, and related engine components are included only when expressly stated for this exact part number.
About Cometic Gasket
Cometic develops sealing products for automotive and powersports engine applications. Correct selection remains exact-engine, exact-dimension, exact-material, exact-interface, and exact-part-number specific.
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Frequently Asked Questions
Will this Cometic gasket fit my 1990-1992 Eagle Talon Base?
That application is listed, but confirm the exact engine, bore, gasket thickness, material, sealing-surface requirements, and manufacturer part number before ordering.
Can I choose gasket thickness by vehicle alone?
No. Confirm the exact engine build, bore, deck and head condition, installed clearances, compression target, and manufacturer instructions before selecting thickness.
Do the sealing surfaces need preparation?
Yes. Follow the current Cometic and engine-builder requirements for surface finish, flatness, cleanliness, fasteners, torque procedure, and any specified sealant.
Installation Instructions
Follow the current Cometic and engine-manufacturer instructions for this exact part number. Verify surface finish, flatness, cleanliness, orientation, fasteners, torque sequence, torque values, sealant requirements, clearances, and fluid procedures before assembly. Inspect and test the completed repair before full-load operation.
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