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Cummins Onan RV QG 2800 Series Generator | 2.8HGJBB-1120 Reviews

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Cummins Onan 2800 Generator
The Cummins Onan 2800 Generator 2.8HGJBB-1120 meets CARB and EPA Tier 4 Final and Phase IV standards and specifications required for all motorized recreational vehicle generator sets. For sale in all 50 states.
Ideal for truck campers, trailer campers, and popups, the Cummins Onan RV QG 2800 Series Generator runs an air conditioner with a 600-watt baseload and an additional 300-watts available for lights, electronics, and entertainment.
Cummins Onan RV Generator Set RV QG 2800
The Cummins Onan 2800 Generator 2.8HGJBB-1120 meets CARB and EPA requirements in all 50 states for gasoline-powered generator applications including travel trailers, truck campers, and popups. The generator set incorporates a digital voltage regulator, frequency regulation and a single-pole 25-Amp Circuit Breakers. The Cummins 2800 Onan Generator weighs just 125 pounds and has a compact design of 22 inches x 16.3 inches x 12.8-inches high. Includes 50-inch generator set output leads and sealed remote start connector.
Go RVing in our national parks without worry. The RV Generator Set Quiet GasolineTM Series RV QG 2800 meets National Park Service sound level requirements of 60 dB(A) or less at 50 feet. Expect less than 70dB at 10 feet away—typical installations lower the actual sound level. Vibration isolation ensures the Cummins Onan RV QG 2800 Series Generator runs exceptionally smooth and quiet within the full housing and integrated base. Noise is further reduced by the USDA Forest Service approved, fully enclosed, spark-arresting muffler.
Microprocessor control with onboard diagnostics and troubleshooting. Voltage regulation within ± 5% and frequency regulation within ± 10% – meets ANSI/RVIA requirements. Low Oil Shutdown protects against engine damage and fused DC circuits protect set wiring and remote control. Solid state ignition keeps the Cummins Onan RV Generator Set RV QG 2800 set operating efficiently and economically. Replaceable Fuel and Air Filters.
The RV Generator Set Quiet GasolineTM Series RV QG 2800 comes with a 3-year limited warranty which covers all parts and labor (excluding routine maintenance) plus a free 90-day minor adjustment policy.
Package Includes the Cummins Onan 2800 Generator Manual.

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Dennis P.
Verified Reviewer
“This generator was installed in y Dynamax REV motorhome from factory. On my first trip, I'm in Sedona, AZ and it won't start. I come to find I need an altitude kit. I get the part number from Cummins and order it at the local supplier. When I get the part, the instructions have you go through a process of draining the carburetor and installing this screw. Reading further, I find out this whole process has to be reversed when below 7,500 ft which means every time you go back to sea level, you have to remove the kit. This is not something you want to go though each time. In fact instructions say the kit should be installed by the dealer. This generator is not appropriate for an RV. You can't possibly expect someone who is on vacation is going to go to a dealer to install and remove this altitude kit. That's ridiculous! When I travel, I could be in the mountains one day and the beach two days later. Someone at Cummins sold a bunch of these generators to DYNAMAX and they installed them in all their REV motorhomes. No I can't go higher than 5,000 ft cause my generator won't start. Go figure. Don't buy this generator for an RV!”
Helpful Report
Posted 7 years ago
Dennis P.
Verified Reviewer
“This generator was installed in y Dynamax REV motorhome from factory. On my first trip, I'm in Sedona, AZ and it won't start. I come to find I need an altitude kit. I get the part number from Cummins and order it at the local supplier. When I get the part, the instructions have you go through a process of draining the carburetor and installing this screw. Reading further, I find out this whole process has to be reversed when below 7,500 ft which means every time you go back to sea level, you have to remove the kit. This is not something you want to go though each time. In fact instructions say the kit should be installed by the dealer. This generator is not appropriate for an RV. You can't possibly expect someone who is on vacation is going to go to a dealer to install and remove this altitude kit. That's ridiculous! When I travel, I could be in the mountains one day and the beach two days later. Someone at Cummins sold a bunch of these generators to DYNAMAX and they installed them in all their REV motorhomes. No I can't go higher than 5,000 ft cause my generator won't start. Go figure. Don't buy this generator for an RV!”
Helpful Report
Posted 7 years ago
John H.
Verified Reviewer
“The purchase of my new generator from Norwall PowerSystems was very smooth. After opening a new account with them, I received a gift card and reduced price. The generator and my other items were delivered on my driveway without any problems. The tail pipe took a little bit of work but after cutting to new size it works fine. Here is a list of all the items that was necessary to retrofit my new generator to the old kv compartment and remote starter-hour meter. Ordered from Norwall PowerSystems-Cummins Onan QG 2.8 Gasoline RV Generator | 2.8HGJBB-1120, Cummins Onan Exhaust Downtube with Flange RV QG2500/2800 | A041L816, Cummins Onan Steel Tailpipe Kit QG2500 QG2800 | 155-2325-Found on Internet-Hour meter T41E45, Cummins Onan Generator Harness Adapter 338-3513: from HGJBB/2800 to Onan KV 2800 remote starter switch, Cummins Onan A043F935 Retro Adapter brackets: from Onan KV 2800 Microlight to HGJBB/2800”
Helpful Report
Posted 7 years ago
John H.
Verified Reviewer
“The purchase of my new generator from Norwall PowerSystems was very smooth. After opening a new account with them, I received a gift card and reduced price. The generator and my other items were delivered on my driveway without any problems. The tail pipe took a little bit of work but after cutting to new size it works fine. Here is a list of all the items that was necessary to retrofit my new generator to the old kv compartment and remote starter-hour meter. Ordered from Norwall PowerSystems-Cummins Onan QG 2.8 Gasoline RV Generator | 2.8HGJBB-1120, Cummins Onan Exhaust Downtube with Flange RV QG2500/2800 | A041L816, Cummins Onan Steel Tailpipe Kit QG2500 QG2800 | 155-2325-Found on Internet-Hour meter T41E45, Cummins Onan Generator Harness Adapter 338-3513: from HGJBB/2800 to Onan KV 2800 remote starter switch, Cummins Onan A043F935 Retro Adapter brackets: from Onan KV 2800 Microlight to HGJBB/2800”
Helpful Report
Posted 7 years ago
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