ZJTBLL Onan RV QG Generator Tune-Up Kit for 5500/7000 — Oil, Air, Fuel Filters, Pump & Spark Plug

A complete ZJTBLL tune-up kit containing oil, air, fuel filters, a fuel pump and a spark plug engineered for Onan RV QG 5500 and 7000 generators.

This kit gathers the routine service parts needed to refresh an Onan RV QG 5500 or 7000 generator: 122-0836 oil filter, 140-3116 air filter, 149-2341-01 fuel filter, E11015 fuel pump and an F5TC spark plug. Each component is matched to the HGJAA, HGJAB and HGJAC series and replaces the common OEM numbers listed, so you can complete a scheduled maintenance service with one purchase. The parts focus on removing contaminants, restoring fuel and air delivery and renewing spark for reliable starts and steady power.

How does this kit restore generator starting and running?

Worn filters and a fatigued fuel pump reduce fuel flow and allow debris into combustion areas, causing hard starts and rough idling. Replacing the oil, air and fuel filter together with the fuel pump and spark plug helps re-establish correct fuel/air delivery and ignition timing tolerance.

• Oil filter 122-0836 traps carbon, metal shavings and particulates to protect moving parts.
• Air filter 140-3116 blocks dust and grit from entering the intake system.
• Fuel filter 149-2341-01 cleans fuel before it reaches the pump and carburetor.
• Fuel pump E11015 restores reliable fuel pressure and flow.
• Spark plug F5TC renews ignition reliability for consistent starts.

Which generator models and part numbers does this kit fit?

The kit is specified for Onan RV QG 5500 and 7000 generators and directly supports HGJAA, HGJAB and HGJAC model variations. It also cross-references common part numbers so technicians can confirm compatibility before installing.

• Compatible models: Onan RV QG 5500 / 7000, HGJAA / HGJAB / HGJAC.
• Oil filter numbers: 122-0836, LF16165, PH10027.
• Air filter: 140-3116. Fuel filter: 149-2341-01.
• Fuel pump: E11015 (also cross-referenced to 596-1160, A029F887, A047N929, 149-2620).
• Spark plug: F5TC for typical Onan QG ignition systems.

What maintenance signs indicate it’s time to use this kit?

Replace these service parts at intervals recommended by manufacturer guidance or sooner if you notice performance changes. Early replacement can prevent damage and reduce the risk of unexpected generator downtime during travel or camping.

• Hard or slow starting, especially after sitting idle.
• Loss of power, sputtering or uneven rpm under load.
• Unusual fuel pump noises or suspected low fuel pressure.
• Visible oil contamination or prolonged oil change intervals.

Who is this for? Owners and service technicians of RVs equipped with Onan RV QG 5500 or 7000 generators who prefer a single-purchase solution for routine maintenance. The ZJTBLL kit saves time sourcing individual parts and ensures matched components for a standard tune-up—ideal for RVers preparing for seasonal travel, fleet managers keeping multiple units maintained, or DIY mechanically comfortable owners performing scheduled generator service.