16100-Z0L-023 Carburetor 16100-Z0L-003 for Honda GCV160 GCV160A GCV160LA GCV160LE GCV160A0 GCV160LA0 HRB216 HRR216 HRS216 HRT216 HRZ216 Lawn Mower with Tune Up Kit

What It Is

This is an aftermarket carburetor assembly (compatible with OEM Honda part numbers 16100-Z0L-023 and 16100-Z0L-003) designed for Honda GCV160 series engines, commonly found on Honda HRB216, HRR216, HRS216, HRT216, and HRZ216 walk-behind mowers. It replaces the stock carburetor to restore proper fuel metering, starting, and throttle response when the original is clogged, warped, or leaking.

Fitment & Compatibility

• Engine family: GCV160, GCV160A, GCV160LA, GCV160LE, GCV160A0, GCV160LA0.
• Mower models: HRB216, HRR216, HRS216, HRT216, HRZ216 (check your specific model suffix, e.g., HRB216K9).
• Check before buying: Confirm your engine’s model number (stamped on the blower housing or valve cover). This carburetor does not fit GCV190 or GCV200 engines—measure the mounting bolt spacing (typically 40mm center-to-center on GCV160). Verify your fuel line diameter (usually 1/4-inch) and throttle linkage type (plastic clip vs. metal spring). The included tune-up kit adds a spark plug, air filter, and fuel filter—ensure these match your mower’s deck size (e.g., 21-inch or 22-inch cut) for proper clearance.
• OEM vs. aftermarket: This is a non-OEM replacement. Expect slightly different gasket thickness or choke plate finish. It should bolt on directly, but minor adjustments to the idle screw may be needed.

Key Things to Know

• Quality: At ~$15, it’s a budget option. Some units have rough casting flash on the bowl or float hinge; inspect and clean before install. A few users report needing to replace the included gaskets with OEM ones to stop leaks.
• Installation difficulty: Moderate (2/5). You’ll need a socket set, screwdriver, and possibly a carburetor adjustment tool. Drain the fuel tank first. Remove the air filter housing, disconnect the throttle linkage carefully (it’s brittle), and swap the carburetor. Reuse the original mounting studs if they’re clean.
• Common gotchas: The included spark plug may not be pre-gapped—check gap to 0.028–0.031 inches. The fuel filter in the tune-up kit is often smaller than OEM; it fits but may require a zip tie to seal. If the mower surges after install, adjust the idle mixture screw (turn 1.5 turns out from lightly seated).
• Tune-up kit contents: Spark plug (usually NGK BPR6ES or equivalent), air filter, fuel filter, and sometimes a small fuel line piece—verify they match your mower’s specs before relying on them.

Should You Buy It

Buy this if you need a low-cost, quick fix for a Honda GCV160 mower that won’t start or runs rough due to a gummed-up carburetor, and you’re comfortable with basic engine work. Skip it if you want OEM reliability, a perfect fit out of the box,