The Nissan Skyline R32, R33, and R34 GTR Cylinder Head Oil Jet (Front) for the RB26DETT engine is a precision-engineered steel component designed to direct pressurized oil from the block into the cylinder head. This small jet, approximately 5mm long by 5mm in diameter, is installed in a machined port on the upper deck of the cylinder block beneath the head gasket, typically in the forward oil feed positions. Its purpose is to ensure the cylinder head and valvetrain receive consistent lubrication under high-RPM and boosted conditions.
The oil jet features a calibrated central orifice of about 1mm, which meters oil into the cylinder head galleries to lubricate camshaft bearings, hydraulic lash adjusters, and other valvetrain components. This targeted flow is critical for reducing friction, dissipating heat, and preventing wear or failure in the high-performance RB26DETT engine. Unlike the solid rear plug that blocks unused passages, this front jet actively channels oil where it is needed, maintaining reliability and efficiency across all Skyline GT-R generations.
This component is commonly replaced during cylinder head removal, gasket changes, or full engine rebuilds to prevent flow restrictions caused by debris or damage. Terra Firma Automotive supplies genuine Nissan parts to ensure your RB26DETT engine maintains optimal lubrication, performance, and long-term durability in Skyline R32, R33, and R34 GT-R applications.
- One Required
- 5mm Long
- 5mm Wide
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