Honda B/D Series Fuel Rail Spacer 16638-PH3-S00

Honda B/D Series Fuel Rail Spacers – Civic, Integra, Prelude, & CR-V

Ensure proper fuel injector height and fitment with genuine Honda B/D Series Fuel Rail Spacers, part number 16638-PH3-S00. These OEM fuel rail spacers are a critical component when using factory fuel rails on a wide range of classic Honda and Acura engines. Without these spacers, your injectors may not seat correctly, potentially causing poor fuel delivery or leaks.

Whether you're restoring a vintage Honda or performing a B Series swap, these spacers help maintain factory fuel rail geometry and performance. They're designed specifically to set the correct injector height . Ideal for street cars, track builds, or any project that uses OEM Honda fuel rails with standard injectors.

Two are needed for proper installation of a fuel rail. The fuel rail spacers work with OEM and Hybrid Racing fuel rails. 

Key Features:

• OEM Honda part – 16638-PH3-S00
• Required for correct fuel injector height with OEM fuel rails
• Ensures proper fuel system sealing and performance
• Perfect for restorations, engine swaps, and maintenance

Vehicle Compatibility:

• 1985–1991 Honda Prelude
• 1993–1997 Honda Del Sol
• 1986–2005 Honda Civic
• 1985–1991 Honda CRX
• 1997–1998 Honda CR-V
• 1985–1989 Honda Accord
• 1992–1994 Acura Vigor
• 1996–1998 Acura TL
• 1986–1995 Acura Integra

Don't overlook the small parts that keep your fuel system performing right—these Honda fuel rail spacers are the OEM solution to injector fitment and reliability.