Fel-Pro engine oil pan gasket set for Ford F-150 & Mustang — one-piece 16-bolt cork-rubber, leak-resistant seal

Fel-Pro OS 30850 R is a one-piece, 16-bolt engine oil pan gasket set engineered to restore a reliable, leak-resistant seal for compatible Ford F-150 and Mustang engines.

If you need to replace an oil pan gasket on a 2011–2017 Ford F-150 or 2011–2020 Ford Mustang, the Fel-Pro OS 30850 R provides a direct-fit, application-specific solution designed for repair environments. Fel-Pro combines a proprietary cork-rubber material with validated on-vehicle testing so the gasket conforms to imperfect sealing surfaces and includes all required parts for a typical oil pan replacement.

How does this gasket handle imperfect sealing surfaces?

The OS 30850 R uses a cork-rubber formulation that remains flexible and highly conformable, which helps it fill minor surface irregularities left by wear or previous repairs. This design reduces the likelihood of oil seepage without requiring extensive machining of mating surfaces.

• Proprietary cork-rubber material for flexibility
• Designed to compress and seal against small imperfections
• Suitable for common repair conditions encountered on older engines

Will this set fit my vehicle and include everything I need?

This gasket set is a direct application for specified Ford models and model years, helping ensure correct alignment and simpler installation. Fel-Pro packaging typically includes all necessary gaskets and pieces for the oil pan assembly unless the product listing notes exceptions.

• Compatibility: 2011–2017 Ford F-150; 2011–2017 Ford Mustang; 2018–2020 Ford Mustang
• One-piece, 16-bolt configuration for correct fitment
• Includes all required gasket components for standard oil pan repairs

How does Fel-Pro test and validate performance?

Fel-Pro performs on-vehicle testing and validation to confirm sealing performance under real-world conditions. That testing helps ensure the gasket withstands thermal cycles, vibration, and everyday road stresses without premature failure.

• Real-world, on-vehicle validation testing
• Designed to resist thermal and vibrational stresses common in engine bays
• Manufactured to professional repair standards for durability

What are the installation and maintenance considerations?

Proper surface preparation—cleaning, removing old gasket material, and checking for warpage—improves sealing success. Use the recommended torque sequence for the 16-bolt pattern, and inspect for leaks after the engine reaches operating temperature.

• Thoroughly clean mating surfaces before installation
• Follow factory torque specs and bolt sequence for even compression
• Verify the seal after warm-up and road testing to confirm no leaks

Who is this for? The Fel-Pro OS 30850 R oil pan gasket set is intended for mechanics, DIY enthusiasts, and repair shops replacing oil pan gaskets on compatible Ford F-150 and Mustang engines. It suits anyone who needs a reliable, application-specific gasket that compensates for common surface imperfections and comes in a complete set designed for professional-grade repairs. If you require exact compatibility, confirm your vehicle year and engine application before ordering to ensure a correct fit.