My Account
Shopping Cart

Ultra-Fab 48-979550 Loaded Hub/Drum Assembly 3500lb 5-Lug 4.5" Bolt Circle for 10" Brakes

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

48-979550
09/12/2036 5:30 AM
Sale Price

$70.31

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ultra-Fab 48-979550 Loaded Hub/Drum Assembly is a complete, ready-to-install brake hub solution rated for 3,500 lb capacity, designed for trailer axles equipped with 10-inch electric brakes. Built from solid grey iron for maximum durability, this assembly is precision-machined to deliver consistent, reliable stopping performance on RV, boat, utility, and cargo trailers.

Key Features:

  • 3,500 lb load capacity — rated for standard single-axle trailer applications
  • 5-lug bolt pattern on 4.5" bolt circle — 5 studs with ½"-20 threaded bolts
  • Compatible with 10" electric trailer brakes
  • Fully loaded assembly — inner and outer races, bearings, and grease seals come preloaded with grease already packed in place
  • Includes: cone wheel nuts, hub cap, and cotter pin — everything needed for a complete hub installation
  • Solid grey iron construction — precision-machined for extended brake life and wear resistance
  • 5-year warranty — backed by Ultra-Fab Products

The 48-979550 is a direct-replacement loaded hub and drum assembly ideal for trailers running a 5 on 4.5 bolt pattern. Because all bearings, races, seals, and hardware are pre-installed from the factory, installation is straightforward and no additional bearing packing is required.

Quick and easy, good product.

Everything was very good . The only issue is the color is not 361 it is darker than the 361 color

Right part. Fast delivery. No issues at all.

Tire provided was as exactly as promised and in brand new condition. Shipped superfast. Will use THMotorsports in the future!

easy process

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy