Jayco Octane T31B

Name: Jayco Octane T31B
Brand: Jayco

Travel trailerbuilt 2015–18Mixed build tierFindable on the used market

WHAT ONE COSTS

$22,100est. used (2018, 8 yr old)

Sticker was $37,849 in 2017. Out of production since 2018, so the used market is the only way to buy one. Estimate assumes a 2018 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK

~9,601 lbestimated as towed, for 2 people

dry weight 7,950 lb + fresh water (102 gal, full) 851 lb + propane + battery 200 lb + gear for 2 600 lb. Brochure dry weight omits water, propane, batteries and your gear; this estimate doesn't.

You want a tow rating around10,670 lb (10% margin)

GVWR (the sticker maximum)11,950 lb

Tongue weight, loaded~1,564 lb (16%: high, eats payload)

Cargo capacity4,000 lb

WHICH TOW VEHICLES IT FITS: 41 OF 95

Judged the way the app judges: estimated loaded weight against each vehicle's rating less a 10% margin, per model year, because the T31B's published weights changed mid-run.

VEHICLE	TOW RATING	VERDICT
Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26	13,300 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax, max tow) '24-26	22,500 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23	18,510 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19	18,100 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-26	36,000 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '11-19	23,300 lb	fits, loaded, with 10% margin
Chevrolet Silverado 1500 (max tow) '14-18	12,500 lb	fits, loaded, with 10% margin
Chevrolet Silverado EV (4WT) '24-26	12,500 lb	fits, loaded, with 10% margin
Ford Expedition (3.5 EcoBoost, tow pkg) '25-26	9,600 lb	2015–16 model years fit
Ford F-150 (3.5 EcoBoost, max tow) '24-26	13,500 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '15-20	13,200 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '21-23	14,000 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '11-14	11,300 lb	fits, loaded, with 10% margin
Ford F-150 Lightning (max trailer tow) '22-26	10,000 lb	2015–16 model years fit
Ford F-250 Super Duty (6.7 diesel, gooseneck) '20-22	22,800 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19	18,000 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel) '11-16	16,600 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 HO diesel, gooseneck) '23-26	23,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '17-19	32,500 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '20-22	37,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '11-16	21,600 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	38,000 lb	fits, loaded, with 10% margin
Ford F-450 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	40,000 lb	fits, loaded, with 10% margin
GMC Sierra EV '24-26	12,000 lb	fits, loaded, with 10% margin
Jeep Grand Wagoneer (Hurricane, max tow) '22-26	9,850 lb	2015–16 model years fit
Jeep Wagoneer (Hurricane, max tow) '22-26	10,000 lb	2015–16 model years fit
Nissan Titan (5.6 V8, tow pkg) '17-24	9,760 lb	2015–16 model years fit
Nissan Titan XD (Cummins diesel) '16-19	12,710 lb	fits, loaded, with 10% margin
Ram 1500 (3.0 Hurricane, max tow) '25-26	11,610 lb	fits, loaded, with 10% margin
Ram 1500 (5.7 Hemi eTorque, max tow) '19-24	12,750 lb	fits, loaded, with 10% margin
Ram 1500 (5.7 Hemi, max tow) '11-18	10,620 lb	2015–16 model years fit
Ram 2500 (6.7 Cummins HO) '19-26	20,000 lb	fits, loaded, with 10% margin
Ram 2500 (6.7 Cummins) '11-18	17,980 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins DRW, gooseneck) '13-18	31,210 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-26	36,610 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-24	37,090 lb	fits, loaded, with 10% margin
Rivian R1T '22-26	11,000 lb	fits, loaded, with 10% margin
Tesla Cybertruck '24-26	11,000 lb	fits, loaded, with 10% margin
Toyota Sequoia (i-Force Max, tow pkg) '23-26	9,520 lb	2015–16 model years fit
Toyota Tundra (5.7 V8, tow pkg) '11-21	10,200 lb	2015–16 model years fit
Toyota Tundra (i-Force Max, tow pkg) '22-26	12,000 lb	fits, loaded, with 10% margin

The 54it doesn't fit

Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~2,671 lb loaded
Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~2,671 lb loaded
Chevrolet Suburban (5.3 V8, max tow) '21-26: over by ~2,131 lb loaded
Chevrolet Tahoe (5.3 V8, max tow) '21-26: over by ~2,041 lb loaded
Chevrolet Traverse (tow pkg) '18-26: over by ~5,101 lb loaded
Chrysler Pacifica '17-26: over by ~6,361 lb loaded
Dodge Durango (5.7 / 6.4 Hemi, tow pkg) '14-26: over by ~1,771 lb loaded
Ford Bronco 4-dr (2.7 EcoBoost, tow pkg) '21-26: over by ~5,551 lb loaded
Ford Expedition (3.5 EcoBoost, tow pkg) '18-24: over by ~1,231 lb loaded
Ford Explorer (3.0 EcoBoost, tow pkg) '20-26: over by ~4,561 lb loaded
Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~6,001 lb loaded
Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~2,851 lb loaded
Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~2,851 lb loaded
Ford Transit (HD tow pkg) '15-26: over by ~3,391 lb loaded
GMC Acadia (tow pkg) '20-26: over by ~5,101 lb loaded
GMC Hummer EV Pickup '22-26: over by ~2,851 lb loaded
GMC Yukon / Yukon XL (5.3 V8, max tow) '21-26: over by ~2,041 lb loaded
Honda Odyssey '18-26: over by ~6,451 lb loaded
Honda Passport (AWD) '19-26: over by ~5,101 lb loaded
Honda Pilot (AWD, tow pkg) '16-26: over by ~5,101 lb loaded
Honda Ridgeline (AWD) '17-26: over by ~5,101 lb loaded
Hyundai Palisade (tow pkg) '20-26: over by ~5,101 lb loaded
Hyundai Santa Cruz (2.5T AWD) '22-26: over by ~5,101 lb loaded
Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~2,671 lb loaded
Jeep Grand Cherokee (5.7 Hemi) '11-21: over by ~3,121 lb loaded
Jeep Grand Cherokee (WL, tow pkg) '22-26: over by ~4,021 lb loaded
Jeep Grand Cherokee L (5.7 Hemi) '21-26: over by ~3,121 lb loaded
Jeep Wrangler Unlimited 4-dr (tow pkg) '18-26: over by ~6,451 lb loaded
Kia Telluride (tow pkg) '20-26: over by ~4,651 lb loaded
Land Rover Defender '20-26: over by ~2,221 lb loaded
Land Rover Discovery '17-26: over by ~2,221 lb loaded
Lexus GX 550 (tow pkg) '24-26: over by ~1,416 lb loaded
Lexus LX 600 '22-26: over by ~2,401 lb loaded
Mazda CX-90 (3.3 turbo, tow pkg) '24-26: over by ~5,101 lb loaded
Mercedes-Benz Sprinter '19-26: over by ~2,851 lb loaded
Nissan Armada (3.5 twin-turbo, tow pkg) '25-26: over by ~1,951 lb loaded
Nissan Armada (tow pkg) '17-24: over by ~1,951 lb loaded
Nissan Frontier (3.8 V6, tow pkg) '22-26: over by ~3,166 lb loaded
Nissan Pathfinder (tow pkg) '22-26: over by ~4,201 lb loaded
Ram ProMaster '14-26: over by ~3,381 lb loaded
Rivian R1S '22-26: over by ~2,671 lb loaded
Subaru Ascent '19-26: over by ~5,101 lb loaded
Subaru Outback (XT / Wilderness) '20-26: over by ~6,451 lb loaded
Tesla Model X (tow pkg) '16-26: over by ~5,101 lb loaded
Tesla Model Y (tow pkg) '21-26: over by ~6,451 lb loaded
Toyota 4Runner (4.0 V6) '11-24: over by ~5,101 lb loaded
Toyota 4Runner (i-Force Max) '25-26: over by ~4,201 lb loaded
Toyota Grand Highlander (i-Force Max) '24-26: over by ~5,101 lb loaded
Toyota Highlander (tow pkg) '20-26: over by ~5,101 lb loaded
Toyota Land Cruiser (i-Force Max) '24-26: over by ~4,201 lb loaded
Toyota Sienna '21-26: over by ~6,451 lb loaded
Toyota Tacoma (i-Force Max, tow pkg) '24-26: over by ~3,751 lb loaded
Toyota Tacoma (V6, tow pkg) '16-23: over by ~3,481 lb loaded
Volkswagen Atlas (tow pkg) '18-26: over by ~5,101 lb loaded

These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →

THE SPECS

Length33.8 ft

Height (incl. A/C)12.3 ft

Width8.5 ft

GVWR11,950 lb

Dry weight7,950 lb

Dry tongue weight1,295 lb

Cargo capacity4,000 lb

Sleeps8

Axles2

Fresh water102 gal

Grey water45 gal

Black water45 gal

Air conditioning13,500 BTU

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP

1× Front bedroom bed(Permanent)60×75
1× Power-lift bed above the garage(Stow-away)60×90
1× Second garage bunk(Stow-away)38×70
1× Dinette converts(Convertible)—

HOW IT'S BUILT: 4/5

WallsLaminated fiberglass

FrameAluminum

RoofWalk-on

UnderbellyEnclosed

Jayco (Mixed tier): Octane

YEAR BY YEAR: WHAT CHANGED

YEARS	GVWR	DRY	MSRP
2015–16	11,950 lb	6,805 lb	$36,874
2017–18	11,950 lb	7,950 lb	$37,849

2015Introduced
2017MSRP $37,849
2018Final model year; UVW 7,950 lb

FINDING ONE

Findable: a few listed nationwide most weeks. Why: Jayco is a volume manufacturer. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Bunk-equipped 33-footer that keeps GVWR under 12,000 lb — a three-quarter-ton tow.

OTHER OCTANE FLOORPLANS

161 · 7,500 lb · sleeps 4 209 · 8,000 lb · sleeps 6 210 · 9,750 lb · sleeps 6 222 · 8,250 lb · sleeps 6 255 · 9,500 lb · sleeps 6 260 · 9,995 lb · sleeps 8 265 · 11,250 lb · sleeps 8 272 · 9,995 lb · sleeps 9 273 · 9,950 lb · sleeps 6 277 · 10,995 lb · sleeps 6 293 · 11,700 lb · sleeps 8 312 · 11,000 lb · sleeps 8 T24Z · 10,250 lb · sleeps 9 T26Y · 10,900 lb · sleeps 8 the whole line →

Find one for sale

Live listings for the T31B on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

Inventory varies by site and day. Slim pickings? search the whole Octane line ↗

Is the T31B your #1, or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about. Set your priorities as sliders, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.