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Ultra-Fab 48-979551 Hub/Drum Assembly Loaded 6000lb 6-Lug 5.5in Bolt Circle 12in Trailer Brake

Manufacturer

Ultra-Fab

<h3>Ultra-Fab: Lifting, Leveling &amp; Stabilizing RVs Since 1958</h3><p>When it comes to keeping an RV safe, steady, and level at the campsite, few names carry as much weight as <strong>Ultra-Fab Products</strong>. Founded in 1958 and headquartered in Elkhart, Indiana — widely regarded as the RV capital of the world — Ultra-Fab has spent more than six decades engineering solutions that take the hassle out of setting up camp. Their product lineup focuses on one core mission: making it easier to lift, level, and stabilize any towable RV, from lightweight pop-ups to heavy fifth wheels.</p><h3>A Legacy Built on Quality and Innovation</h3><p>Ultra-Fab's reputation rests on a combination of rigorous product testing, all-steel construction, and a drive to innovate. The brand is perhaps best known for its flagship Phoenix series, which Ultra-Fab itself bills as home to the <em>&quot;Fastest Jack on Earth.&quot;</em> These electric tongue jacks feature push-button operation, dual memory settings for fast hook-up, and water-resistant motor housings — details that reflect the brand's commitment to building products that perform reliably in real-world conditions, season after season.</p><p>Their <a href="/7625-ultra-fab-tongue-jacks-201082">Tongue Jacks</a> lineup spans both electric and manual configurations, with capacities ranging from 1,000 lbs up to 5,500 lbs to suit trailers of all sizes. Whether you need a basic side-wind manual unit for a utility trailer or a high-speed electric A-frame jack for a full-size travel trailer, Ultra-Fab offers an option engineered for the task.</p><h3>Jacks for Every Application</h3><p>Beyond tongue jacks, Ultra-Fab produces a wide range of <a href="/7625-ultra-fab-jack-14315">stabilizing and leveling jacks</a> designed to eliminate the rocking and swaying that can make life inside a parked trailer uncomfortable. Their scissor jacks, for example, feature a double-nut design that allows the jack to travel twice as far per rotation — a clever engineering touch that dramatically speeds up setup and teardown. Models like the PowerTwin II go a step further, spanning the full width of the RV frame to eliminate both front-to-back and side-to-side motion simultaneously, with up to 6,000 lbs of lifting capacity per leg.</p><p>Rounding out their catalog, Ultra-Fab's <a href="/7625-ultra-fab-trailer-parts-accessories-201094">Trailer Parts &amp; Accessories</a> selection gives owners everything they need to maintain, upgrade, and protect their jacking systems. From replacement caster wheels and footplates to weatherproof jack covers and slide-out supports, these accessories help extend the life of your equipment and keep your rig performing at its best.</p><h3>Why RV Owners Trust Ultra-Fab</h3><p>Ultra-Fab products are distributed through an extensive network of RV dealers across the United States, making them accessible whether you're shopping at your local RV dealership or online. The brand backs many of its products with industry-leading warranties — including lifetime coverage on select scissor jacks — a clear signal of confidence in their own manufacturing standards. For anyone serious about RV ownership, Ultra-Fab represents a trusted, time-tested partner for keeping adventures safe and comfortable from the moment you pull into camp.</p>

Part Number

48-979551
09/12/2036 5:30 AM
Sale Price

$99.11

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Usually delivered within 2 days

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Product Details

The Ultra-Fab 48-979551 is a fully loaded hub and drum assembly designed for heavy-duty trailer applications with a 6,000 lb. axle capacity. Built from solid grey iron, this hub/drum assembly delivers consistent, reliable braking performance and long-lasting brake life.

This assembly arrives fully pre-loaded and ready to install right out of the box, eliminating the need for separate bearing packing or component sourcing. Everything needed for a complete hub service is included.

Key Features:

  • 6,000 lb. capacity per brake — suitable for heavy trailers, RVs, and similar towable equipment
  • 6-lug, 5.5" bolt circle hub pattern for proper wheel fitment
  • 1/2"-20 threaded wheel studs for secure wheel attachment
  • Designed for use with 12" electric trailer brakes
  • Solid grey iron construction for maximum durability and brake life
  • Pre-loaded with inner and outer races, bearings, grease seals, and grease — install-ready from the factory
  • Backed by a 5-year warranty

The Ultra-Fab 48-979551 loaded hub/drum assembly is the ideal solution for trailer brake maintenance and replacement, saving time and ensuring proper assembly every time.

The part description was accurate and we got the parts in a timely manner.

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Had what I wanted and got it fast!

I bought tires then they showed up.

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