ZMCYNG Carburetor 541-0765 Replacement for Onan 5500/7000 (HGJ Series) — Direct-Fit Kit with Filters & Fuel Shutoff

High-quality replacement carburetor for Onan 5500 and 7000 series generators that restores reliable fuel-air metering and fitment to OEM standards.

If your Onan Marquis HGJ series generator is running rough, leaking fuel, stalling, or has poor throttle response, a worn or damaged carburetor is a common culprit. The ZMCYNG 541-0765 carburetor is built as a direct-fit replacement for the original Onan part numbers and comes as a full service kit so you can install it and return your generator to smooth operation without hunting for extra parts.

Which generators and engine models does this carburetor work with?

This part replaces OE numbers 541-0765 and several cross-references, making it compatible with a range of Onan gasoline Marquis HGJ engines. It fits both 5.5 and 7.0 kW configurations within the HGJ series and models that use similar carburetion components.

• Fits Onan Marquis HGJ series: HGJAA, HGJAB, HGJAC, HGJAE, HGJAF and variants like HGJAB-900/901D
• Compatible with 5.5HGJAB-6755K and related part numbers P#O455K5/U, 7RK-B22340
• Direct replacement for OE: 541-0765, 5410765, 0541-0765, 146-0774, 141-0983, 141-0982
• Also cross-references A043B781, A041P558, 48-2042

What comes in the ZMCYNG carburetor kit and why does that matter?

Rather than supplying just the body, this kit includes the common wear items and installation pieces technicians typically need. That reduces downtime and eliminates extra shopping trips for fuel lines, filters, or gaskets.

• 1 x fully assembled carburetor tested to OEM production tolerances
• 1 x cleaning brush for ports and jets
• 1 x fuel line and 1 x fuel shut-off valve for immediate hookup
• 2 x inline fuel filters, 3 x gaskets, and 4 x clamps for sealing and secure connections

How difficult is installation and will adjustments be required?

The ZMCYNG 541-0765 is built to match the original dimensions and mounting points so it installs the same way the factory carburetor did. Each unit is performance-tested prior to shipping, so most users will install it without needing initial jetting or complex tuning.

• Mounts to the same studs and throttle linkage as the OEM part
• Performance-tested to meet OEM flow and leak standards
• No special tools or modifications required for standard replacements
• Minor throttle or idle adjustments may be made after warm-up if desired

How does this carburetor affect engine reliability and fuel handling?

A properly functioning carburetor restores correct fuel-to-air ratio and reduces issues like flooding, oil contamination, or poor starting. The ZMCYNG replacement aims to match OEM performance so your generator reaches expected efficiency and stable idle characteristics.

• Designed to prevent excess fuel flow that can cause oil contamination or spillage
• Stable metering supports steady idle and load response under varying generator demand
• Included filters and shut-off valve protect the carburetor and simplify maintenance
• Manufactured to tight tolerances to reduce leaks and ensure repeatable performance

Who is this for? The ZMCYNG 541-0765 carburetor kit is intended for homeowners, RV owners, marine users, and professional technicians who maintain Onan Marquis HGJ-series generators and need a dependable, full replacement package. If you want a direct-fit swap that includes common consumables—fuel lines, filters, gaskets, and clamps—this kit saves time and restores reliable generator operation.