Jayco Seismic · 2023–2027395

The Jayco Seismic 395 is a fifth-wheel toy hauler in the MY2027 Seismic roster, with a 13' 6" garage behind the living space. Jayco publishes a dry weight of 16,075 pounds against a 21,000-pound GVWR, and the two tie out exactly with the published 4,925-pound cargo carrying capacity — 16,075 + 4,925 = 21,000. That arithmetic is checked on every plan in this catalogue, and a plan whose own figures disagree is catalogued without a page rather than quietly reconciled.

The dry pin weight is 3,450 pounds, or 21% of the dry weight. Fifth-wheel pin load lands in the truck bed and counts against the truck’s payload, not just its towing rating — it is the number that runs a truck out of payload before it runs out of tow capacity. Loaded pin runs higher than dry pin once the garage is filled. Payload is 4,925 pounds, 23% of GVWR — on a toy hauler that ceiling covers water, propane, cargo, dealer-fitted equipment AND whatever goes in the garage. Fresh water alone at 106 gallons is about 880 pounds when full.

Tanks are 106 gallons fresh, 87 grey and 87 black. Interior height is 8' 3" and the exterior measures 8' 6" wide on ST215/75R17.5'H' tyres. Jayco publishes two exterior heights for this floorplan: 12' 5" at the roofline and 13' 3" with the air conditioner. Both are printed above, neither is derived from the other, and it is the taller figure that has to clear your garage door. This page covers the MY2027 395 only. Jayco’s figures move between model years — measured on this very roster, the 395 loses more than a foot of published length between MY2026 and MY2027 — so nothing here is carried over from a neighbouring year, and no year is shown that Jayco has not published for this code.

How the 395 differs from the other sixteen Seismic fifth wheels. Most distinctive first. Sibling pages may cover other model years than this one (2023–2027). How these ranks are worked out.

• Exterior height, 12 ft 5 in: lowest of eight; next are the 399 and Seismic Luxury Series 4113 (12 ft 6 in).
• Dry weight, 16,075 lb: second-heaviest of seventeen, between the Seismic 4113 (16,025 lb) and the 415 (16,590 lb).
• GVWR, 21,000 lb: shared with the 399; of seventeen, fourteen lower and one higher, nearest the Seismic Luxury Series 4113 (20,900 lb) and the 415 (22,000 lb).
• Cargo capacity, 4,925 lb: sixth-largest of seventeen, between the Seismic Luxury Series 4113 (4,900 lb) and the 4125 (5,065 lb).
• Dry pin weight, 3,450 lb: sixth-lightest of seventeen, between the 4250 (3,340 lb) and the 413 (3,470 lb).
• Dry pin weight as a share of dry weight, 21.5%: shared with the 4250; of seventeen, two smaller and thirteen larger, nearest the 359 (21.3%) and the 413 (21.7%).
• Cargo capacity as a share of GVWR, 23.5%: eighth-largest of seventeen, between the 4013 and Seismic Luxury Series 4113 (23.4%) and the 4114 (23.7%).
• Sleeping capacity, 7: shared with the 3512, 3815 and 403; of nine, three smaller and two larger, nearest the 359, 413 and 415 (6) and the 399 and Seismic Luxury Series 4113 (8).

Next to the Seismic 4113 (2018–2019 page), the nearest lighter floorplan by dry weight, the 395 is 50 lb heavier by dry weight, has a GVWR 305 lb higher, has 255 lb more cargo capacity, has a dry pin weight 340 lb lighter and has a fresh tank 40 gal smaller.

Next to the 415 (2027 page), the nearest heavier floorplan by dry weight, the 395 is 515 lb lighter by dry weight, has a GVWR 1,000 lb lower, has 485 lb less cargo capacity, has a dry pin weight 270 lb lighter and sleeps one more; the two publish the same interior height, fresh tank, grey tank and black tank.

This floorplan has a published factory record for 5 model years here, 2023 to 2027. The specification does not hold still: GVWR runs from 19,995 lb (2023) to 21,000 lb (2027); dry weight runs from 14,890 lb (2024) to 16,075 lb (2027); dry pin weight runs from 3,245 lb (2023) to 3,485 lb (2026). The published tire size changes over the run (215/75R17.5'H', then ST215/75R17.5'H'). The published sleeping capacity changes across the years: up to 8 in 2023, up to 7 in 2024, up to 8 in 2025, up to 6 in 2026, up to 7 in 2027. Each year’s complete record is printed separately below, carrying only that year’s own published figures and source. Nothing is copied across from a neighbouring year.

Seismic is Jayco's fifth-wheel toy-hauler flagship — a garage trailer built to carry motorcycles, side-by-sides or a track bike. Jayco's own floorplan titles call it a toy hauler, and the running gear is described around a Rota-Flex king pin, so the hitch figures on this page are PIN weights, carried in the truck bed and counted against the truck’s payload rating. The 395 on this page is highlighted; every other profiled plan links to its own page.

A full 106-gallon fresh tank is about 880 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 18% of the 395’s 4,925 lb cargo capacity, leaving 4,045 lb (578 lb per rated berth). Across 17 Seismic fifth-wheel floorplans the water share runs 16% to 27%, and 13 give up more than this one. Nearest on that share: Seismic 3815 at 17% and Seismic 4113 at 18%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).