The Nissan Silvia and 180SX S13 and S14 Engine to Transmission Locating Dowel for SR20 engines is an essential component for maintaining drivetrain precision and reliability. This solid steel dowel, also known as a transmission locating dowel or block-to-gearbox pin, is positioned on the rear face of the SR20 cylinder block, typically in the upper machined hole near the transmission bell housing. Measuring approximately 20mm long by 10mm in diameter, it is pressed into the block to protrude slightly, ensuring precise alignment during engine-to-transmission installation.
Its primary function is to guarantee accurate alignment between the SR20 engine block and the transmission bell housing. Proper alignment prevents issues such as input shaft misplacement, clutch or flywheel contact problems, and gasket leaks at the joint. This is critical for torque transfer, smooth operation, and the overall integrity of the drivetrain, especially in performance applications. The dowel is commonly inspected or replaced during engine rebuilds, transmission swaps, or performance upgrades to maintain optimal functionality.
This dowel performs the same alignment function across both rear-wheel drive and all-wheel drive SR20 variants, including the RWD SR20DET in the Silvia and 180SX and the AWD SR20DET in the Pulsar GTi-R. Its location and purpose remain consistent regardless of whether the engine is mounted transversely or longitudinally. Using genuine Nissan components from Terra Firma Automotive ensures precise fitment, reliability, and durability for your SR20-powered vehicle.
- 1 Required
- 20mm Long
- 10mm WIde
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