GCV170 Carburetor for Honda HRN216 Lawn Mower GCV200 HRX217K6 Pressure Washer Engine with GCV170LA S3B GCV200LA S3C Engine, Replace 16100-Z9L-811

What It Is

This is a direct-replacement carburetor for Honda GCV170 and GCV200 engines, commonly found on HRN216 lawn mowers, HRX217K6 mowers, and pressure washers using those engines. It replaces OEM part number 16100-Z9L-811 and handles fuel metering and air/fuel mixing for reliable engine start and run.

Fitment & Compatibility

Before buying, verify these three things:

• Engine model: Must be GCV170LA S3B, GCV200LA S3C, or GCV170/GCV200 variants. Check engine label (usually near spark plug).
• OEM part number: This replaces 16100-Z9L-811. If your mower uses 16100-Z9L-813 or 16100-Z9L-823, this may still fit (same mounting pattern), but confirm gasket alignment.
• Physical measurements: Gasket mounting holes are 50mm center-to-center, bowl diameter ~45mm. Measure your old carb’s mounting flange if unsure.

Will not fit older GCV160, GXV engines, or non-Honda small engines. Not for walk-behind mowers with different deck sizes (e.g., HRR216, HRX217HYA).

Key Things to Know

• Quality: Aftermarket (not OEM Honda). Users report it runs well but may need minor idle adjustment out of the box. 4.9-star rating from 23 reviews suggests high consistency.
• Installation difficulty: Moderate. Requires removing air filter housing, fuel line, and throttle linkage. Have a small screwdriver and pliers ready. Expect 20-40 minutes.
• Common gotcha: The gasket included may be thin. Use a thin layer of gasket sealant on both sides to prevent air leaks. Also check fuel line diameter—some users report needing a 1/4" ID fuel line adapter.
• Return policy: Verify seller offers returns for fitment issues; some aftermarket parts may have slight casting flash needing light filing.

Should You Buy It

Buy this if your Honda GCV170/GCV200 engine is stalling, surging, or won’t start due to a clogged carburetor, and you want a budget-friendly fix ($22.98 vs. $60+ OEM). Best for DIY homeowners with basic mechanical skills. Skip it if you need OEM exactness for commercial use or if your engine has other issues (bad coil, low compression).