OEM Rocker Arm Assembly Locator Ring Dowel | 20R/22R/RE

LCE OEM Locator Ring Dowel

Precision is the foundation of any high-performance engine build. The LCE OEM Rocker Arm Assembly Locator Ring Dowel is a critical alignment component designed to ensure the rocker arm assembly and cylinder head are perfectly synchronized. Measured to tolerances within thousandths of an inch, these ring dowels eliminate the guesswork in top-end assembly, preventing costly damage and ensuring long-term reliability for your Toyota R-series. 

Why Alignment Matters

Skipping or reusing worn dowels can lead to devastating mechanical failures. Without proper alignment, the rocker assembly can shift under load or during thermal expansion, This misalignment can lead to improper valve train geometry, uneven wear, and potential failure of the head-to-rocker interface. These dowels are essential for securing the assembly in the exact position required for optimal performance.

Key Features

• Genuine OEM Quality: Sourced directly from Toyota to ensure perfect fitment and material integrity.
• Critical Precision: Machined to exact tolerances to maintain absolute alignment between the rocker arm assembly and the head.
• Essential for Rebuilds: A "must-replace" item during any cylinder head service or top-end overhaul to prevent component shifting.

Technical Specifications

• Application: Toyota 20R, 22R, and 22RE engines.
• Quantity Required: (5) pins are required per cylinder head.
• OEM Toyota Part Number: 90253-16020.
• Sold Individually: (Each)

Related Components

• 20R/22R/22RE Head-to-Block Dowel Pin: Part Number 8012324.
• 2RZ/3RZ Head-to-Block Dowel Pin: Part Number 8012205.

-Tech Tip: Never assume your old dowels are perfectly round. During a rebuild, always inspect dowel pins for burrs or distortion. Replacing them with new OEM units is cheap insurance against catastrophic engine movement.