Oil Level Indicator Tube

The Oil Level Indicator Tube (Part Number 12551154) is a replacement dipstick tube assembly designed for small block Chevrolet engines, including GM 350 Fast Burn, ZZ383, ZZ4, and ZZ5 performance variants. This block-mount steel tube with black paint finish provides accurate engine oil monitoring for both street and high-performance applications where OEM dipstick accuracy and reliability are essential.

Constructed from durable steel with a protective black paint finish, this tube-only assembly mounts directly to the engine block, eliminating guesswork during routine maintenance checks. The design is optimized for small block Chevy platforms and maintains compatibility with both naturally aspirated and performance-modified engines. Proper oil level monitoring is critical for engine longevity, especially in high-output builds where temperature management and lubrication efficiency directly impact reliability and performance durability.

This replacement tube serves engine builders, restoration specialists, and performance enthusiasts rebuilding small block Chevy powerplants. Whether restoring an original 350, upgrading with a ZZ4 performance crate engine, or maintaining a custom fast-burn build, accurate oil level indication is non-negotiable for engine health. The tube-only configuration allows users to retain their existing dipstick handle or upgrade with aftermarket options that match their specific engine bay layout and aesthetic preferences.

Small block Chevy engines remain the foundation of automotive performance culture, from street rods to race applications. This OEM-style replacement tube ensures that oil level monitoring—a basic but critical maintenance task—functions reliably across the full range of small block variants and power levels.