Cometic C15258-040 MLX Cylinder Head Gasket for 1992-2011 Ford 4.6/5.4L Modular

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Product Specification:

SKU:CGSC15258-040

MPN: C15258-040

UPC: 191070270940

Weight: 0.8 lb

Inventory: 2

Type: Head Gaskets

Vehicle Fitment

1992-2011 Ford Mustang (4.6L & 5.4L Modular V8, RHS)
1992-2011 Ford F-150 (4.6L Modular V8, RHS)
2003-2008 Ford E-150 / E-250 / E-350 (5.4L & 4.6L Modular V8, RHS)
2000-2005 Ford Excursion (5.4L Modular V8, RHS)
1996-2004 Ford Crown Victoria / Lincoln Town Car / Mercury Grand Marquis (4.6L Modular V8, RHS)
1997-2004 Ford Expedition (5.4L Modular V8, RHS)
1994-1997 Mercury Cougar / Thunderbird (4.6L Modular V8, RHS)
2002-2005 Ford Explorer (4.6L Modular V8, RHS)

Fitment Notes

Right-Hand Side (RHS) cylinder head gasket only.
Fits Ford Modular V8 4.6L & 5.4L engines (both 2-Valve & 4-Valve where applicable). Excludes non-Modular blocks or other V8 families. :contentReference[oaicite:0]{index=0}
Bore size: 92.000 mm (≈ 3.622 in). :contentReference[oaicite:1]{index=1}
Compressed thickness: 0.040 in. :contentReference[oaicite:2]{index=2}

Features

MLX multi-layer stainless steel construction for superior sealing under high pressure and heat. :contentReference[oaicite:3]{index=3}
Four steel layers in gasket stack for improved strength and reduced distortion. :contentReference[oaicite:4]{index=4}
"Fire-ring" style combustion chamber sealing area to resist blow-by under boost or high load. :contentReference[oaicite:5]{index=5}
High temperature coatings help seal coolant and oil passages. :contentReference[oaicite:6]{index=6}
Designed for high performance and forced induction applications. :contentReference[oaicite:7]{index=7}
Round bore shape matches aluminum and cast heads in Modular V8 applications. :contentReference[oaicite:8]{index=8}
Made to order; expect lead times. :contentReference[oaicite:9]{index=9}
Right side orientation to match factory head layout. :contentReference[oaicite:10]{index=10}

Specifications

Material: MLX multi-layer stainless steel. :contentReference[oaicite:11]{index=11}
Bore Size: 92.000 mm (≈ 3.622 in). :contentReference[oaicite:12]{index=12}
Compressed Thickness: 0.040 in. :contentReference[oaicite:13]{index=13}
Number of Steel Layers: 4. :contentReference[oaicite:14]{index=14}
Orientation: Right-Hand Side (RHS) head. :contentReference[oaicite:15]{index=15}
Engine Compatibility: Ford Modular V8 4.6L & 5.4L (2V/4V). :contentReference[oaicite:16]{index=16}
Years Verified: ≈ 1992 through ≈ 2011 depending on specific vehicle. (post-2011 Modular engine usage diminishes) :contentReference[oaicite:17]{index=17}
Drivetrain: RWD or 4WD as per vehicle; head gasket orientation only, not axle configuration. :contentReference[oaicite:18]{index=18}

Included Components

1x Cometic C15258-040 MLX Cylinder Head Gasket (RHS)

Product Description

The Cometic C15258-040 MLX Cylinder Head Gasket is built for right-side heads on Ford Modular V8 4.6L and 5.4L engines. This gasket features a 92 mm bore, .040-inch compressed thickness, and a four-layer stainless-steel MLX design. It includes a reinforced fire-ring around the combustion chamber for better sealing under high pressure, making it suitable for high performance or forced induction builds while maintaining close-to-stock compression.

It fits a broad range of vehicles from the early-1990s through ~2011 that use the Modular V8 architecture (Mustang, F-150, Crown Victoria, E-Series vans, Explorers, etc.). Proper installation requires clean mating surfaces, correct torque sequence, and use of the RHS gasket only for the right-hand (passenger side) head. Always verify bore size and block / head condition before selection. Fitment confirmed through model years where Modular 4.6L/5.4L remained in production; newer engine families are unconfirmed.