

PermaTorque MLS Head Gasket, 3.75 in. Bore for 2002-2008 Infiniti, 2002-2021 Nissan, and 2009-2012 Suzuki Vehicles
Fel-Pro 26370PT is a PermaTorque MLS head gasket built for select Nissan, INFINITI, and Suzuki V6 applications using the VQ35DE 3.5L and VQ40DE 4.0L engines. Its multi-layered stainless steel design, embossed sealing beads, and repair-focused coating help restore combustion sealing where real-world surface finish conditions can make a standard gasket harder to trust.
Fel-Pro 26370PT Features:
- PermaTorque MLS construction uses multiple stainless steel layers to maintain sealing stress as the cylinder head and block move under heat and cylinder pressure.
- Proprietary coating is engineered for imperfect repair surfaces and can accommodate sealing surface finishes up to 80 Ra.
- Precisely embossed sealing beads help close off potential leak paths around combustion chambers and fluid passages.
- Head gasket bore measures 3.75 in., matching the listed 3.750 in. specification for this application.
- Premium-grade head gasket is supplied without gasket sealant, so follow the service procedure and use only the materials required for the repair.
Designed for engine repair work where MLS sealing technology is needed on aluminum or lightweight castings and where sealing surfaces may not be factory-perfect after teardown.
Fits select 2002-2021 applications including INFINITI FX35, G35, I35, and M35; Nissan 350Z, Altima, Frontier, Maxima, Murano, NV1500, NV2500, NV3500, Pathfinder, Quest, and Xterra; and Suzuki Equator with VQ35DE or VQ40DE V6 engines. Confirm year, trim, engine code, and head position requirements before ordering.