Cometic 91-03 Jeep 4.0L Inline-6 4.000in Bore .040in MLS Head Gasket

If you're rebuilding the top end of your 1987-2001 Jeep Cherokee, Comanche, Grand Cherokee, Wagoneer, or Wrangler with the 4.0L inline-6 engine, this Cometic Multi-Layer Steel (MLS) head gasket is a solid choice. It's specifically made to fit a 4.000-inch bore and is 0.040 inches undersize, which is important for proper compression and sealing when you're working on an engine that's been bored out.

This gasket is built tough with multiple layers of stainless steel, giving it strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle high temperatures up to 482°F (250°C) and works well with different head and block materials like aluminum and cast iron. Because it's an MLS design, it doesn't require any extra sealants, making installation more straightforward. The center layer is stainless steel and can be varied in thickness to meet specific engine build needs.