2025 Thor Hurricane 29M vs 2024 Monaco Marquis 40B

Detailed Comparison

Looking at the 2025 Thor Hurricane 29M alongside the 2024 Monaco Marquis 40B? Smart move — comparing specs before you buy is the best way to ensure satisfaction.

Dimensionally, you're looking at 39.0 ft for the Thor Hurricane 29M and 37.5 ft for the Monaco Marquis 40B. The Monaco Marquis 40B carries an extra 7,600 lbs, which affects tow vehicle requirements and fuel economy.

For sleeping arrangements, the Thor Hurricane 29M offers room for 5 and the Monaco Marquis 40B can handle 5. The Thor Hurricane 29M benefits from 4 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Thor Hurricane 29M packs 119 gal of fresh water and 550W of solar. The Monaco Marquis 40B counters with 78 gal fresh water and 250W solar.

Price is often the deciding factor. The Monaco Marquis 40B starts at $623,000 MSRP, while the Thor Hurricane 29M commands $624,000 — a $1,000 gap.

Off-grid campers should pay close attention to solar wattage, battery capacity, and tank sizes. Full-timers should prioritize tank capacity, storage, and overall living comfort.

Whichever you choose, you'll be getting a capable rig. Just make sure to inspect one in person before signing.

When it comes to water management, tank capacity plays a major role in how long you can stay off the grid. The 2025 Thor Hurricane 29M holds 119 gallons of fresh water compared to 78 gallons in the 2024 Monaco Marquis 40B, giving it a 41-gallon advantage for extended dry camping. Gray water capacity favors the 2024 Monaco Marquis 40B at 65 gallons versus 41 gallons, which directly affects how often you need to find a dump station. The 2024 Monaco Marquis 40B also leads in black water capacity with 40 gallons compared to 37 gallons, an important consideration for families or full-time travelers.

Electrical systems are increasingly important as RVers rely on more electronics and appliances. The 2025 Thor Hurricane 29M comes equipped with 550W of factory solar compared to 250W on the 2024 Monaco Marquis 40B, a meaningful difference for off-grid energy harvesting. Battery storage gives the edge to the 2025 Thor Hurricane 29M with 400Ah versus 250Ah, translating to longer run times for lights, fans, and charging devices overnight. The 2024 Monaco Marquis 40B's 2500W inverter can handle heavier loads than the 2000W inverter in the other unit, which matters if you plan to run a microwave, coffee maker, or hair dryer without shore power.

For solo travelers and couples who value maneuverability, the 2024 Monaco Marquis 40B with its more compact footprint will be easier to navigate through tight campgrounds and mountain passes. Both models sleep 5, making them equally viable for small families or couples who occasionally host guests. Full-time RVers who spend extended periods off-grid will benefit most from the 2025 Thor Hurricane 29M's power setup and the 2025 Thor Hurricane 29M's water reserves, as these directly impact daily comfort and independence from hookups. Weekend warriors and seasonal campers who primarily stay at full-hookup campgrounds may find that the differences in tank sizes and power systems matter less, allowing them to focus on floor plan preference and overall comfort instead.

From a value perspective, the 2024 Monaco Marquis 40B at $623,000 MSRP represents a $1,000 savings over the 2025 Thor Hurricane 29M at $624,000, a 0% price difference. Breaking it down per sleeping position, the 2025 Thor Hurricane 29M costs roughly $124,800 per berth while the 2024 Monaco Marquis 40B comes in at $124,600 per berth. On a cost-per-foot basis, the 2025 Thor Hurricane 29M runs about $16,000 per linear foot versus $16,613 for the 2024 Monaco Marquis 40B, which helps contextualize the value each unit delivers for its size. It is also worth considering that Thor and Monaco have different dealer networks and warranty programs, which can significantly impact your long-term ownership experience and resale value down the road.