GCV170 Carburetor Compatible with Honda GCV170LA GCV200LA HRN216 HRX217K6 Lawn Mowers Compatible with GCV170LA G5B G5BR S3B GCV200LA G5B G5BR Engine with Tune Up Kit

What It Is

This is an aftermarket carburetor assembly for Honda GCV170 and GCV200 series engines, commonly used on HRN216 and HRX217K6 mowers. It replaces the factory carb on models equipped with the G5B, G5BR, or S3B variants, and includes a tune-up kit (gaskets, fuel line, spark plug, air filter) for a full fuel-system refresh.

Fitment & Compatibility

Before buying, confirm your mower’s engine model and serial number—not just the deck size. This carb fits Honda GCV170LA and GCV200LA engines only, specifically the G5B, G5BR, and S3B sub-models. It is not compatible with GCV160, GCV190, or GCV200 (non-LA) engines. For HRN216 or HRX217K6 mowers, verify the engine code on the valve cover or under the fuel tank (e.g., GCV170LA S3B). Measure the existing carburetor mounting flange width (approx. 2.0 inches) and bolt spacing to match. This is an aftermarket part, not OEM Honda, so it may require minor adjustment (idle speed, mixture screws) after installation.

Key Things to Know

• Quality vs. OEM: Budget price point; carb body and gaskets may feel lighter than Honda factory parts. Most users report it works out of the box, but some need to clean out machining debris or replace the primer bulb.
• Installation difficulty: Moderate. You’ll need to remove the air filter housing, fuel line, and throttle linkage. A clean workspace and a small screwdriver set are essential. Expect 30–60 minutes if you’re handy.
• Common gotchas: The included spark plug may not match your engine’s gap spec—check and adjust before installing. The tune-up kit’s fuel line may be slightly long; trim to fit. Always replace the carburetor gasket and air filter when swapping.
• Tuning required: After installation, the engine may run rich or lean. Adjust the idle mixture screw (typically 1.5 turns out from lightly seated) and idle speed screw for smooth operation.

Should You Buy It

This is a solid budget option if your Honda GCV170/200 engine is hard-starting, surging, or leaking fuel, and you’re comfortable with basic carb work. It’s not for purists who want OEM reliability or zero adjustment, but for the price, it’s a practical fix for older mowers or occasional-use machines. If your engine is still running well, stick with a simple cleaning and gasket kit instead.