Carburetor 16100-Z8B-901 BB76A A for Honda GCV160LA0 GCV160LA1 HRR216K9 HRS216K6 HRR216K10 HRS216K5 Mower

What It Is

This is a replacement carburetor (OEM Honda part number 16100-Z8B-901) for GCV160 engines found on select Honda walk-behind mowers. It mixes air and fuel for combustion, restoring starting and running performance when the original carb clogs or fails.

Fitment & Compatibility

• Engines: Fits Honda GCV160LA0 and GCV160LA1 engines.
• Mowers: Compatible with HRR216K9, HRS216K6, HRR216K10, and HRS216K5 models.
• Check before buying: Verify your mower’s model number (on the deck or under the rear flap) and the engine’s serial number. This carb is a direct OEM replacement, not a universal fit. Measure the mounting flange bolt spacing (roughly 2.25 inches center-to-center) and the intake throat diameter (approx. 0.75 inches) to confirm match. If your engine is a GCV160 but from a different series (e.g., GCV160EA or SA), this carb may not fit without modifying the throttle linkage or gaskets.

Key Things to Know

• Quality: Genuine Honda part, so you get proper seals, jets, and reliable operation. Avoid cheap aftermarket clones that often need rejetting or leak.
• Installation difficulty: Moderate. You’ll need to remove the air filter housing, fuel line, and throttle cable. New gaskets (not included) are recommended—buy a gasket set separately.
• Common gotchas: The float bowl gasket can be brittle on old carbs; replace it if reusing. Also, the fuel shut-off valve (if present) must be in “OFF” position before disconnecting lines. After installation, prime the bulb (if equipped) and start with choke fully closed.
• Tuning: Usually plug-and-play, but if idle is rough, adjust the idle screw (on the throttle plate) slightly. No high/low mixture screws on this carb.

Should You Buy It

Buy this if you have a Honda HRR216 or HRS216 with a GCV160LA engine and the mower won’t start, runs poorly, or floods from a clogged carb. It’s a reliable, direct OEM fix at a fair price—ideal for DIYers comfortable with basic engine work. If your mower is over 10 years old or the engine is from a different GCV160 variant, verify fitment first or consider a full carb kit instead.