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Old 12-02-2023, 01:12 PM   #1
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M.O.C. #33034

What are the differences between a 3120 rl and a 3121 rl?
Bob & Sandy
2021 3120RL
2003 chevy
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Old 12-02-2023, 01:33 PM   #2
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I believe the last digit “0” means it has a RV gas/electric fridge.
The “1” means it has a residential fridge.
My rig (3921 FB) has a Samsung RF18 residential fridge.
No idea if this numbering is still used on newer year models.
MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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Old 12-02-2023, 01:34 PM   #3
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At one time the only difference was the 3121 included a residential reefer.
Zack and Donna plus Millie and Ranger
2018 3160RL

"Life is too short to stay indoors, enjoy the ride!"
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Old 12-02-2023, 05:54 PM   #4
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M.O.C. #30262
On new units they have the same designator now. No model.differences between residential and RV (now 12V) refrigerators. Now one has to look at the build sheet to know for sure. I'm of the understanding that std fridge is residential and 12V is optional.
Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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