Intake Manifold Boot for Honda CB500K, CB550K, CB550F (1971-1977) | OEM 16211-323-000

Product Overview

Maintain the iconic smooth-revving character of your vintage Honda Four with this high-durability Carburetor Intake Manifold Pipe. Specifically engineered for the CB500K, CB550K, and CB550F Super Sport series, this part is a direct replacement for OEM #16211-323-000. On these classic SOHC engines, air leaks at the intake are the #1 cause of "hanging idles" and difficult tuning. Our manifold is built to withstand the intense heat of an air-cooled engine bay, providing a perfect vacuum seal to keep all four cylinders perfectly synchronized.

Product Compatibility

Direct replacement for Honda 500cc & 550cc SOHC Inline-Four engines. Please verify your OEM code.

Brand	Model	Fitment Years	Replaces OEM Part #
Honda	CB500K	1971 – 1973	16211-323-000
Honda	CB550K	1974 – 1976	16211-323-000
Honda	CB550F Super Sport	1975 – 1977	16211-323-000

Specifications

Feature	Detail
OEM Reference	16211-323-000
Material	High-Strength, Fuel-Resistant Synthetic Rubber
Properties	Anti-Aging, Crack-Resistant, High-Temperature Tolerance
Fitment Type	Direct Bolt-on Factory Replacement
Quality Control	Precision Manufactured for Airtight Vacuum Seal

Key Features

• High-Strength Durability: Crafted from premium materials designed to thrive in the high-heat environment of an air-cooled inline-four engine, effectively preventing the drying, hardening, and cracking common in vintage rubber.
• Leak-Free Vacuum Seal: Precision-manufactured to ensure an airtight connection between the carburetors and cylinder head, eliminating lean-running conditions that cause "popping" through the intake and engine hesitation.
• Corrosion-Resistant Compound: Engineered to resist degradation from modern ethanol-blended fuels and engine oils, significantly prolonging the service life of your intake system.
• Restores Tuning Stability: By ensuring zero air leaks, this manifold allows for precise carburetor synchronization—essential for achieving the smooth, reliable idle these classic Hondas are famous for.
• Factory Standard Fit: Strictly follows the manufacturing standards for the 16211-323-000 specification, providing a seamless installation experience for restorers and enthusiasts.