The Cometic Peugeot XU9J4/XU9J4Z/XU10J2/XU10J4 .051in MLS Cylinder Head Gasket - 86.5mm Bore - C4227-051 is a precision-engineered head gasket with a 86.5mm bore and .051" compressed thickness.
The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.
-
Material: Multi-Layer Steel (MLS)
-
Bore Size: 86.5mm
-
Thickness: .051" compressed
-
Part Number: C4227-051
Verified fitment: Peugeot 405 (1989–1991).