Husqvarna Part Number 544889702 Fuel Cap

What It Is

This is the OEM replacement fuel cap (part number 544889702) for select Husqvarna walk-behind mowers and zero-turn riders. It seals the fuel tank to prevent leaks and vapor loss.

Fitment & Compatibility

Before buying, verify your mower’s model number and series. This cap fits Husqvarna models with a 1.5-inch (38mm) threaded fuel neck opening. Common compatible series include the LC (e.g., LC221A, LC321A), LB (e.g., LB256S), and certain Z242F zero-turn models. Do not rely on mower brand alone—check your owner’s manual or measure the existing cap’s outer diameter (approx. 1.5 inches) and thread pitch. It is an OEM part, not aftermarket. If your cap is smaller or larger, or has a different thread pattern, this will not fit.

Key Things to Know

• Quality: OEM construction uses durable plastic and a rubber gasket. Some users report the gasket can dry out over 2–3 seasons, leading to slow leaks.
• Installation: Simple twist-on replacement; no tools needed. Takes under 30 seconds.
• Common Gotcha: The cap is vented. If you overtighten, you may crush the gasket or cause fuel vapor smell. Hand-tighten only.
• Price: At $16.99, it’s mid-range. Aftermarket caps for this size run $8–$12 but often lack the OEM venting design.

Should You Buy It

If you own a compatible Husqvarna mower and need a direct, trouble-free replacement, this cap is the right choice. It’s ideal for users who prefer OEM fit and don’t want to gamble with aftermarket venting or thread mismatches. Skip it if your cap is a different size or you want a cheaper, non-OEM option.