ACmango Carburetor Kit for Cummins Onan 5500 Grand Marquis Gold (541-0765) — Replacement Carb with Fuel Line & Filter

ACmango's 541-0765 carburetor kit is a complete replacement and tune-up pack that restores fuel delivery and idle stability for Cummins Onan 5500 (Grand Marquis Gold) and compatible 7000 series RV generators.

When a generator runs rough, stalls at idle, or uses excessive fuel, the carburetor and related fuel parts are often the cause. This ACmango kit brings together a fully tested replacement carburetor with essential wear items — fuel line, valve, clamps, and filter — plus multiple OEM-style parts to return your Onan unit to reliable operation. The set is built to match fitment for a range of Onan model numbers and arrives brand-new and inspected before shipment.

How will this kit improve my generator’s performance?

Replacing a worn or clogged carburetor and its associated components improves fuel atomization and steady idling, which reduces sputtering and unexpected shutdowns. The included replacement parts address typical failure points that impact starting, throttle response, and fuel consumption.

• New carburetor restores correct fuel/air mixture and idle stability
• Fresh fuel filter prevents debris from reaching jets and valves
• Replacement valves and clamps reduce leaks and vapor lock
• Fuel line renews brittle or collapsed hoses that restrict flow

Which Onan models and part numbers does this kit fit?

This ACmango tune-up kit is specified to replace part number 541-0765 and fits Cummins Onan Grand Marquis Gold 5500 units and several 7000 Marquis Gold series RV generators. Fitment covers a swath of HGJ-series models commonly used in RV and standby applications.

• Compatible with Onan models: HGJAA, HGJAB, HGJAC, HGJAE, HGJAF
• Also fits HGJAB-901D, HGJAB-900, 5.5HGJAB-6755K variants
• Replaces P# O455K5/U and 7RK-B223401 style references
• Verify your serial/model plate against the images and spec list before ordering

Is installation straightforward and what should I expect?

The package supplies the primary components needed for a standard carburetor replacement, but no printed instructions are included. Professional installation or mechanical experience is recommended because jet adjustments or linkage alignment may be required for best results.

• Kit includes carburetor, fuel line, valve, clamps and fuel filter
• No step-by-step manual — recommended professional fitting
• Do not modify the carburetor body; follow generator service practices
• Pre-shipment testing ensures unit arrives ready for installation

What guarantees and customer support come with the kit?

ACmango stands behind the kit as brand-new and quality checked prior to shipping. The seller offers a customer-response commitment and a limited return window to help buyers confirm fitment and satisfaction.

• 100% tested carburetor before shipment
• 30-day money-back guarantee if the kit doesn’t meet expectations
• Customer support response typically within 24 business hours
• Advice available to confirm compatibility before purchase

Who is this for? This ACmango 541-0765 carburetor kit is tailored for RV owners, fleet managers, and service technicians maintaining Cummins Onan Grand Marquis Gold 5500 and compatible 7000-series generators. It’s aimed at anyone who needs a thorough fuel-system refresh — replacing worn fuel lines, filters, valves, and the carburetor itself — to restore dependable starts and steady operation. If you’re unsure about fitment or installation, contact the seller with your generator’s model and serial number so you get the correct parts for your unit.