01 What makes it unique
Highland Ridge lists the 2023 Mesa Ridge 373RBS at 13,000 lb dry, a GVWR of 15,500 lb, a net carrying capacity of 2,500 lb and a pin weight of 2,495 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 43' 0" long and 13' 1" high. Highland Ridge prints its tanks as 85 gal fresh, 80 gal grey, 80 gal black.
Among the 7 Mesa Ridge floorplans Highland Ridge’s 2023 Mesa Ridge fifth-wheel brochure lists with a published dry weight, it is number 6 from the lightest, in a range from 10,170 lb (Mesa Ridge 284RLS) to 13,260 lb (Mesa Ridge 395BHS). Every figure in that comparison is Highland Ridge’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from Highland Ridge’s 2023 Mesa Ridge fifth-wheel brochure, the maker’s own dated document for model year 2023.
How the 373RBS differs from the other six Mesa Ridge floorplans. Most distinctive first. How these ranks are worked out.
- Cargo capacity as a share of GVWR, 16.1%: smallest of six; next are the 376FBH and 395BHS (18.4%).
- Dry weight, 13,000 lb: second-heaviest of seven, between the 371MBH (12,665 lb) and the 395BHS (13,260 lb).
- Cargo capacity, 2,500 lb: second-smallest of seven, between the 284RLS (2,330 lb) and the 376FBH (2,760 lb).
- Pin weight, 2,495 lb: third-heaviest of seven, between the 371MBH (2,350 lb) and the 376FBH (2,515 lb).
- Pin weight as a share of dry weight, 19.2%: third-largest of seven, between the 371MBH (18.6%) and the 395BHS (19.4%).
- Length, 43 ft: third-longest of seven, between the 371MBH (42 ft 5 in) and the 379FBS (43 ft 1 in).
- Grey tank, 80 gal: smallest of seven, level with the 371MBH and 395BHS; next is the 376FBH (82 gal).
- Exterior height, 13 ft 1 in: shared with the 371MBH and 379FBS; of seven, two lower and two taller, nearest the 395BHS (13 ft) and the 374BHS and 376FBH (13 ft 2 in).
Next to the 371MBH, the nearest lighter floorplan by dry weight, the 373RBS is 335 lb heavier by dry weight, has 440 lb less cargo capacity, has a pin weight 145 lb heavier, is 7 in longer and has a black tank 40 gal larger; the two publish the same GVWR, exterior height, interior height, fresh tank and grey tank.
Next to the 395BHS, the nearest heavier floorplan by dry weight, the 373RBS is 260 lb lighter by dry weight, has a GVWR 750 lb lower, has 490 lb less cargo capacity, has a pin weight 80 lb lighter, is 7 in shorter and stands 1 in taller; the two publish the same interior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 43' 0"
- Exterior height
- 13' 1"
- Exterior width
- 8' 4"
- Interior height
- 8' 2" (lower deck); 6' 6" (upper deck)
Weights
- Dry / unit base weight (UVW)
- 13,000 lb
- GVWR (max loaded)
- 15,500 lb
- Net cargo / payload (CCC)
- 2,500 lb
- Hitch / pin weight
- 2,495 lb
Capacities
- Fresh water
- 85 gal
- Grey water
- 80 gal
- Black water
- 80 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16"
Sleeping & layout
- Sleeps
- Not published by Highland Ridge
- Spec table heading
- Highland Ridge heads this table “May Include Estimated Values”
How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (15,500 lb) and the upper loaded pin estimate (3,875 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.
03 The Mesa Ridge floorplan family
Highland Ridge’s 2023 Mesa Ridge fifth-wheel brochure lists 7 Mesa Ridge floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Mesa Ridge 284RLS | 34' 3\" | — | Profiled |
| Mesa Ridge 376FBH | 42' 3\" | — | Profiled |
| Mesa Ridge 379FBS | 43' 1\" | — | Profiled |
| Mesa Ridge 374BHS | 41' 1\" | — | Profiled |
| Mesa Ridge 371MBH | 42' 5\" | — | Profiled |
| Mesa Ridge 373RBS | 43' 0\" | — | Profiled |
| Mesa Ridge 395BHS | 43' 7\" | — | Profiled |
Highland Ridge’s 2023 Mesa Ridge fifth-wheel brochure lists 7 Mesa Ridge floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Highland Ridge does not publish for the Mesa Ridge 373RBS
Highland Ridge prints no sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
12,665 lb dry and 15,500 lb GVWR, against this model’s 13,000 lb and 15,500 lb.
13,260 lb dry and 16,250 lb GVWR, against this model’s 13,000 lb and 15,500 lb.
06 Loading it for a trip
A full 85-gallon fresh tank is about 706 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 28% of the Mesa Ridge 373RBS’s 2,500 lb cargo capacity, leaving 1,794 lb. Across 7 Mesa Ridge floorplans the water share runs 23% to 30%, and 1 gives up more than this one. Nearest on that share: Mesa Ridge 376FBH at 26% and Mesa Ridge 284RLS at 30%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).
07 Where this floorplan sits
Closest sibling: the Mesa Ridge 376FBH, nearest on the published figures. It differs on 7 of the 8 fields both publish (this plan first): length 43 ft 0 in vs 42 ft 3 in; dry weight 13,000 lb vs 12,240 lb; GVWR 15,500 lb vs 15,000 lb; cargo capacity 2,500 lb vs 2,760 lb; hitch weight 2,495 lb vs 2,515 lb; grey tank 80 gal vs 82 gal; black tank 80 gal vs 82 gal. They match on fresh tank.
| Mesa Ridge plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 15,500 | 3–6 of 7 | 12,500–16,250 |
| Dry weight (lb) | 13,000 | 6 of 7 | 10,170–13,260 |
| Cargo capacity (lb) | 2,500 | 2 of 7 | 2,330–3,005 |
| Hitch weight (lb) | 2,495 | 5 of 7 | 1,780–2,575 |
| Length | 43 ft 0 in | 5 of 7 | 34 ft 3 in–43 ft 7 in |
| Grey tank (gal) | 80 | 1–3 of 7 | 80–132 |
| Black tank (gal) | 80 | 3–6 of 7 | 40–82 |
Either side of it by GVWR: Mesa Ridge 371MBH matches it at 15,500 lb GVWR; Mesa Ridge 374BHS matches it at 15,500 lb GVWR.
| Nearest Mesa Ridge siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Mesa Ridge 373RBS | 43 ft 0 in | — | 13,000 | 15,500 | 2,500 | 2,495 | 85 |
| Mesa Ridge 376FBH | 42 ft 3 in | — | 12,240 | 15,000 | 2,760 | 2,515 | 85 |
| Mesa Ridge 395BHS | 43 ft 7 in | — | 13,260 | 16,250 | 2,990 | 2,575 | 85 |
| Mesa Ridge 379FBS | 43 ft 1 in | — | 12,495 | 15,500 | 3,005 | 2,245 | 85 |
| Mesa Ridge 374BHS | 41 ft 1 in | — | 12,595 | 15,500 | 2,905 | 2,315 | 85 |
| Mesa Ridge 371MBH | 42 ft 5 in | — | 12,665 | 15,500 | 2,940 | 2,350 | 85 |
All 7 Mesa Ridge floorplans: Mesa Ridge line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Mesa Ridge 373RBS | 15,500 | 13,000 | — | 43 ft 0 in |
| Brookstone 374RK | 15,500 | 13,020 | — | 42 ft 2 in |
| Chaparral 367BH | 15,500 | 12,328 | — | 42 ft 6 in |
| ElkRidge 37RED | 15,500 | 11,848 | 6 | 41 ft 7 in |
| Shasta Phoenix 367BH | 15,500 | 12,328 | — | 42 ft 6 in |
| Sandpiper 3710HBFB | 15,500 | 12,649 | 7 | 42 ft 9 in |
| Sierra 3710HBFB | 15,500 | 12,649 | — | 42 ft 9 in |
Against the Mesa Ridge 373RBS: the ElkRidge 37RED is 1 ft shorter.
08 Common questions about the Mesa Ridge 373RBS
How much does the Mesa Ridge 373RBS weigh?
13,000 lb dry; 15,500 lb GVWR, the most it may weigh loaded.
How much can the Mesa Ridge 373RBS carry?
2,500 lb, 16% of its GVWR (median across 334 fifth wheels here: 18%). A full fresh tank uses 706 lb of it.
What is the pin weight of the Mesa Ridge 373RBS?
2,495 lb as published, 19% of the dry weight (median across 540 fifth wheels here: 19%).
What size tow vehicle does the Mesa Ridge 373RBS need?
A tow rating of at least 15,500 lb, plus payload for the loaded pin weight, passengers and cargo.
What are the tank capacities on the Mesa Ridge 373RBS?
Fresh 85, grey 80, black 80 gallons. Off hookups, fresh water runs out first.
How long is the Mesa Ridge 373RBS?
43' 0" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
11 of the 18 fields this catalogue tracks are published for the Mesa Ridge 373RBS. Not published: sleeps, slide count, axle count, awning, refrigerator, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: library.rvusa.com (linked below); the full source note is at the foot of the page.