The Legacy of Kiefer Built Trailers

Since rolling its first chassis out of a small shop in 1974, Kiefer Built has been synonymous with hard-working, long-lasting horse trailers. Decades of feedback from ranchers, show competitors, and recreational riders shaped the company’s philosophy: build light enough for a half-ton truck yet tough enough for cross-country hauls on gravel. Over the years, more than 60,000 units have left Kiefer’s Midwestern plant, and many of the early aluminum-skin models are still on the road today.

One pivotal moment came in 2011, when the brand changed ownership. Production moved to a new facility, welding protocols were updated, and model names were streamlined. Understanding that split is crucial for buyers comparing older used rigs with late-model listings.

An Overview of the Current Kiefer Lineup

Kiefer’s catalog covers virtually every equine and livestock transport niche. As of this writing, dealers across the United States and Canada carry five core model families:

• Genesis – all-aluminum, straight and slant-load horse trailers
• Genesis Living Quarters – Genesis bodies extended with self-contained LQ modules
• Stockman – aluminum livestock trailers for cattle, sheep, and mixed loads
• Stock Combo – a hybrid with a front tack room and open livestock area
• Showpen – low-profile, single-level trailers for miniature horses and show stock

Each model can be optioned with custom dividers, hay racks, hydraulic jacks, and climate packages. Factory lead times usually run 10–16 weeks, while in-stock units are available through the dealer network.

Deep Dive: Genesis Aluminum Horse Trailer

The Genesis has been Kiefer’s flagship since the late 1990s, prized for its one-piece aluminum roof and interlocking floor planks that resist corrosion far better than steel. Standard straight-load versions include 7’6″ interior height, drop-down windows on head and hip walls, and lined & insulated walls to muffle road noise. Owners routinely report quieter horses and fewer paw marks thanks to that extra insulation. Ventilation is handled by two roof vents per stall and a pair of 18″ flow-through slats at the rear.

The aerodynamic V-nose trims drag by roughly 10 %, based on side-by-side fuel-usage logs I recorded while towing a 2020 Genesis 7123 behind a ¾-ton diesel. Over a 1,100-mile trip from Nebraska to Texas, the rig averaged 0.9 mpg better than my comparable box-front trailer.

Another advantage is the recessed manger tack compartment on slant-load formats. Saddle bosses, 14 bridle hooks, and a removable blanket bar come standard. Riders looking to pair the Genesis with a backup trailer camera system will find pre-wired 12-volt leads inside the roof bows—no drilling into aluminum stringers required.

Utility and Livestock: Stockman and Stock Combo

For ranchers who haul cattle one week and feed the next, the Stockman line offers a full-height rear door, 14-gauge ribbed flooring, and quick-latch slam gates. Despite its beefy build, a 20′ Stockman tips the scales at just under 4,800 lb—light enough for a properly equipped half-ton. The Stock Combo adds a 4′ sealed tack room up front, making it popular at junior rodeos where riders need secure saddle storage yet still want a livestock-grade interior.

What sets these models apart from many generic stock trailers is the punched-side ventilation pattern. Larger 2½” holes near the roof expel heat, while narrower slots lower down deflect road debris. That airflow design evolved from Kiefer’s show-cattle customers, who noticed significant coat fade in hotter trailers.

Comfort on the Road: Genesis Living Quarters

When weekend jackpots turn into week-long circuits, a restroom and full galley become non-negotiable. The Genesis Living Quarters mates the same all-aluminum horse area to a Sierra-built interior. Floorplans range from compact 7′ short-wall models to sprawling 18′ slide-outs with queen beds.

Key standard features:

• 8 cu ft fridge, two-burner cooktop, and microwave
• Ducted A/C with 12,500 BTU furnace
• Solid-surface counters and hardwood cabinet fronts

If you prefer a more DIY road-trip setup, consider outfitting the rear tack with a portable water tank kit and solar generator—both install cleanly into the aluminum angle bracing.

How Kiefer Built Trailers Hold Up in the Real World

Browsing the discussion threads on Chronicle of the Horse forums reveals a nuanced picture. Pre-2011 trailers consistently earn praise for weld integrity and minimal corrosion. My own 2004 Genesis 3-horse has logged over 180,000 trailer miles with no cracked welds and only a single replaced door latch.

Post-2011 units show a broader spread of experiences. A handful of owners reported seam sealer failures that led to roof leaks and oxidation streaks down the curbside wall. Kiefer addressed the issue by switching to a wider butyl tape in late 2017, yet shoppers comparing 2015-era stock should inspect roof seams closely.

On the flip side, newer Kiefers gained several modern touches—full-length LED light strips, upgraded Dexter torsion axles, and optional WERM poured-rubber flooring—which early models lack. Balancing those pros and cons is the crux of any used-trailer search.

Pricing Guide: New vs. Used

Pricing swings dramatically based on year, length, and living-quarters content. Data pulled from All American Trailers, Denver and live listings on HorseTrailerWorld illustrate the spectrum:

A 1988 2-horse straight-load recently sold for $5,995, while a 2025 Kiefer Kruiser 2-horse bumper pull equipped with roof-mount A/C commands $21,200. New Genesis Living Quarters models ordered through Mid-South dealers are quoting between $78,000 and $108,000, depending on slide-outs and cabinetry upgrades.

Because aluminum resists rust, older Kiefers hold value better than many steel counterparts. However, depreciation accelerates if seams are compromised; water intrusion can blister interior skin within one season.

Dealer Network and Customization Options

Kiefer maintains roughly 45 authorized dealerships, each trained to process custom spec sheets. Popular upgrades include hydraulic self-leveling jacks, hay pods, and air-ride suspension. From my experience ordering a Stockman Combo last year, the factory’s CAD department turned my crude sketch into a revision-ready blueprint within 72 hours, and the trailer delivered four weeks ahead of schedule.

When you pick up a factory-ordered unit, insist on weighing it at a certified scale before signing off. I discovered my trailer’s freshwater tank was filled to capacity for leak checks, inflating the curb weight by 300 lb—information essential for setting hitch height and brake-controller gain.

Expert Tips for Evaluating a Kiefer Built Trailer

Whether you are shopping the classifieds or walking a dealer lot, use the checklist below to separate a gem from a headache:

• Run a hand over roof seams; look for dried sealant cracks wider than 1 mm.
• Tap floor planks with a rubber mallet; a dull “thud” can mean hidden corrosion in the cross-members.
• Check the VIN against Kiefer’s production log (dealers can request it) to confirm pre- or post-2011 build.
• Hook up your own brake controller and perform three hard stops; erratic voltage may point to grounding issues.
• Inspect live and curbside walls for vertical oxidation streaks—early signs of pin-hole leaks.

Bring a pocket-size digital thermometer to compare inside-stall temps after 15 minutes in the sun. A well-insulated Genesis should measure no more than 5 °F above ambient. If you need additional ventilation later, low-profile roof fans install easily with a portable cordless rivet gun.

Final Thoughts

Kiefer Built trailers occupy a sweet spot between affordable steel-frame models and high-end custom rigs. Their all-aluminum skeletons, generous ventilation, and thoughtful tack layouts make them dependable companions for show circuits and ranch work alike. Still, buyers should weigh the documented post-2011 seam-seal issues against the clear benefits of newer axles, lighting, and flooring.

Armed with factory build data, a thorough inspection routine, and credible owner feedback, you can secure a Kiefer Built trailer that will serve your horses—and your fuel budget—for decades to come.