Belt Guide 40T Oil Pump Pulley

The Belt Guide 40T Oil Pump Pulley from Jones Racing Products is a precision-engineered accessory designed for serious engine builders and enthusiasts running aftermarket serpentine belt systems. This bolt-on component prevents belt misalignment and walk-off during high-RPM operation, a critical concern when upgrading to custom pulley configurations or aggressive fuel pump and alternator setups. Whether you're building a high-output street engine or preparing a track vehicle, maintaining proper belt tracking directly impacts drivetrain reliability and eliminates the risk of catastrophic belt failure mid-drive.

Manufactured from aluminum and finished in clear anodize, this belt guide features a 40-tooth HTD (High Torque Drive) pulley profile and measures 1/4 inch in thickness—specs that reflect Jones Racing's commitment to minimal weight while maintaining structural rigidity. The HTD tooth profile ensures positive engagement and reduces slippage under load, critical when accessory drives must support upgraded water pumps, high-amp alternators, or supercharger systems. Clear anodizing preserves the aluminum's natural appearance while offering corrosion resistance suitable for engine bay environments, and the compact footprint (3.9 x 1.2 x 4.5 inches) integrates seamlessly into tight engine compartments without requiring extensive modification.

This belt guide is ideal for builders transitioning to lightweight, serpentine-driven accessory systems or those upgrading to oversized pulleys for increased flow. Installation is straightforward—the bolt-on design requires no welding or permanent modifications to existing brackets. Verify compatibility with your specific pulley arrangement and belt width before ordering, as HTD profile matching is essential for proper tracking. Mechanics and engine builders working on stroker builds, LS conversions, or modified cooling systems will find this component invaluable for maintaining belt stability under sustained high-RPM operation.