16100-Z0L-876 Carburetor, 16600-Z8B-900 Choke Control for Honda GCV160A0 GCV160LA GCV160LA0 HRR216 Auto Choke Engines

What It Is

This is a complete carburetor assembly (16100-Z0L-876) with choke control (16600-Z8B-900) designed for Honda GCV160 engine variants—specifically GCV160A0, GCV160LA, GCV160LA0, and HRR216 mowers with auto choke. It replaces the factory fuel system on walk-behind mowers, snow blowers, and pressure washers using these engines.

Fitment & Compatibility

Before buying, confirm your engine model is one of the following: Honda GCV160A0, GCV160LA, GCV160LA0 (look for the sticker on the engine shroud). This carb is OEM Honda—not aftermarket—so fitment is exact for these models. It includes the auto choke mechanism (the 16600-Z8B-900 part), so it’s not compatible with manual choke engines. Measure the mounting bolt spacing: it uses two M6 bolts on 60mm centers. Check your old carb’s gasket pattern—this comes with a new gasket, but if your intake manifold is warped, you’ll need a separate gasket kit. HRR216 mowers with serial numbers before 2012 may have a slightly different fuel line fitting; verify the fuel inlet barb is 6.4mm (1/4”).

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the air filter housing, fuel line, and throttle linkage. Expect 30–60 minutes if you’ve done carb work before.
• Auto choke setup: The choke control is pre-assembled, but the bi-metallic spring must be correctly oriented to engage when cold. If the engine starts then dies, the choke may be misaligned—recheck the spring hook position.
• Fuel line compatibility: The carb uses a push-on hose with a clamp. If your old fuel line is brittle, replace it with 1/4” ID fuel line (sold separately). Old dried fuel can clog the new carb quickly if the tank isn’t cleaned.
• Quality notes: As OEM Honda, this is the same part as factory—no aftermarket fit issues. The 4.4-star rating reflects occasional complaints about the choke spring being slightly stiff out of the box; it loosens after a few starts.

Should You Buy It

Buy this if you have a GCV160 engine with auto choke and want a direct, no-mod replacement that restores proper fuel delivery and choke function. It’s ideal for DIYers comfortable with basic engine disassembly and who want OEM reliability over cheaper aftermarket carbs that often need adjustment. Skip it if your engine uses a manual choke or if you only need a gasket kit.