The Timken SP580205 is a premium front wheel bearing and hub assembly engineered for 1999–2004 Ford F-250 and F-350 Super Duty 4WD single-rear-wheel (SRW) trucks and 2000–2005 Ford Excursions equipped with front 4-wheel ABS and coarse M14x2.0 wheel studs. Manufactured to exacting original equipment standards, Timken builds this Generation 3 cartridge unit bearing using heat-treated high-carbon alloy steel raceways, advanced multi-lip contamination seals, and pre-packed premium synthetic grease. It includes the integrated front ABS wheel speed sensor with a factory-sealed wiring harness and protective loom, coarse-thread wheel studs, and precision-machined internal needle bearings to support the outer axle stub shaft.

Loud front-end roaring, humming, or grinding noises that escalate with vehicle speed, loose steering wheel play, front-end wandering, illuminated ABS and brake warning lights, uneven front tire wear, and front brake rotor runout caused by bearing play are what this assembly solves. The heavy front-end curb weight of the 7.3L Powerstroke diesel, paired with large tires and demanding towing duty, puts extreme mechanical stress on factory unit bearings. Over time, road salt, water, and grit breach the outer seals, washing away lubrication and galling the internal bearing surfaces. Replacing a failing, loose, or noisy hub with a Timken SP580205 restores factory-tight front-end steering response, quiet highway rotation, and dependable ABS wheel speed feedback. It is sold as a single front hub assembly (fits driver or passenger side); two assemblies are required to service an entire front axle, and outer locking hubs, knuckle vacuum seals, and axle shaft snap rings are sold separately.

It fits 1999–2004 Ford Super Duty F-250 and F-350 4WD single-rear-wheel trucks and 2000–2005 Excursions equipped with Dana 50 or Dana 60 front drive axles, 4-wheel ABS, and coarse M14x2.0 wheel studs (used on trucks built on or after 3/22/1999 through 2004).

Fitment

• 1999–2003 Ford F-250 Super Duty 4WD SRW 7.3L Powerstroke (4-Wheel ABS / Coarse Studs)
• 2003–2004 Ford F-250 Super Duty 4WD SRW 6.0L Powerstroke (4-Wheel ABS / Coarse Studs)
• 1999–2003 Ford F-350 Super Duty 4WD SRW 7.3L Powerstroke (4-Wheel ABS / Coarse Studs)
• 2003–2004 Ford F-350 Super Duty 4WD SRW 6.0L Powerstroke (4-Wheel ABS / Coarse Studs)
• 2000–2005 Ford Excursion 4WD 7.3L & 6.0L Powerstroke (4-Wheel ABS / Coarse Studs)
• 1999–2004 Ford F-250 / F-350 Super Duty 4WD Triton Gas (5.4L V8 & 6.8L V10)
• Fits Dana 50 and Dana 60 front drive axles
• Fits Single Rear Wheel (SRW) models only; does not fit Dually (DRW)
• Equipped with M14x2.0 coarse-thread wheel studs (built from 3/22/1999 onward)
• Includes pre-installed ABS wheel speed sensor, weather-pack connector, and wiring loom
• Factory 8x170mm wheel bolt pattern
• Single front wheel hub assembly only (fits left/driver or right/passenger side)

Support the front axle securely on heavy-duty jack stands, remove the front wheel, and unbolt the brake caliper and bracket as a single unit, suspending it with a wire hanger to prevent strain on the rubber brake hose. Slide off the brake rotor, remove the outer locking hub, and extract the axle stub shaft snap ring and thrust washers. Unclip the ABS sensor lead from the frame rail bracket and disconnect the wiring plug. Remove the four 21mm mounting nuts from the rear of the steering knuckle, and press or drive the seized factory hub unit out of the knuckle bore. Thoroughly clean all rust, scale, and corrosion from the cast iron knuckle bore with a wire wheel, and apply a thin film of anti-seize lubricant to prevent future seizing. Inspect the yellow vacuum knuckle O-ring and the inner axle shaft vacuum seal, replacing them to guarantee reliable 4WD ESOF operation. Slide the new Timken hub assembly into the knuckle bore, install the four mounting studs, and torque the rear knuckle retaining nuts in a crisscross pattern to the factory specification of 133 ft-lbs. Route the ABS sensor harness along the factory routing tabs, plug it securely into the chassis harness, reinstall the axle thrust washers, snap ring, locking hub, rotor, and torque the brake caliper bracket bolts to 166 ft-lbs with blue thread locker.