Cometic C5839-120 MLS Cylinder Head Gasket .120 inch Bore 4.140 inch VIN F | 1999-2003 Ford F250/F350 7.3L Powerstroke

Features:

• Fits 1999–2003 7.3L Powerstroke VIN F
• Multi-layer steel (MLS) gasket construction
• .120 inch compressed thickness
• 4.140 inch valve-pocketed bore size
• Three-layer design for strong sealing
• Reinforced with graphite and galvanized steel
• Seals uneven or imperfect surfaces
• Ideal for high-performance diesel builds
• Withstands extreme pressure and heat
• Built for heavy-duty Powerstroke applications

A Trusted Seal for Big Builds and Hard-Use Powerstrokes

If you’re deep into a build on your 1999–2003 Ford Super Duty and running a 7.3L Powerstroke, you know the head gasket isn't something to cut corners on. The Cometic C5839-120 MLS Cylinder Head Gasket is purpose-built for serious diesel applications, whether you’re chasing big power, compensating for machining, or just rebuilding a workhorse that’s seen years of heavy towing. With a thick .120-inch compressed profile and a 4.140-inch valve-pocketed bore, this gasket is ideal when you need to adjust deck height or cylinder head depth while maintaining rock-solid sealing across the board.

Engineered for Strength Where It Matters Most

Cometic uses a proven multi-layer steel (MLS) design with three tough layers, reinforced with high-performance materials like galvanized steel, armor-clad coatings, and graphite to handle irregular surfaces and extreme cylinder pressure. That construction gives the gasket the flexibility to conform where needed, while holding strong under high-heat, high-boost conditions that would stretch thinner, less durable options. Whether you’re building a tow rig, a tuned street truck, or a full-blown power build, this gasket helps ensure your top end holds together under pressure—keeping your 7.3L running clean, sealed, and reliable no matter how hard you push it.

Fits: 1999, 2000, 2001, 2002, 2003 Ford F250/F350 7.3L Powerstroke

Specs:

• Material: MLS
• Compressed Thickness: .120
• Bore Shape: Valve Pocketed
• Bore Size: 4.140 inch
• Layers: 3
• Orientation: None