• Genuine Spicer 6.3-4-5221-1X 1760 series half round 44-spline differential end yoke full front view
  • Close-up view of precision 44-spline internal hub bore on Spicer 6.3-4-5221-1X end yoke
  • Heavy-duty commercial truck differential pinion end yoke Spicer part number 6.3-4-5221-1X
  • Precision-machined half-round universal joint strap ears and bolt holes on Spicer 6.3-4-5221-1X
  • Unboxed perspective layout view of Spicer 6.3-4-5221-1X differential end yoke
  • Original factory box label on cosmetically damaged packaging for genuine Spicer 6.3-4-5221-1X
  • Technical dimensional layout and 44-spline hub diameter schematic drawing for Spicer 6.3-4-5221-1X
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Spicer

Spicer Differential End Yoke 1760 Half Round Series 44 Spline - 6.3-4-5221-1X (Damaged Box)

Spicer Differential End Yoke 1760 Half Round Series 44 Spline - 6.3-4-5221-1X (Damaged Box)

$153.92 USD
$219.88 USD $153.92 USD
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At FleetPro Parts, we specialize in supplying OEM replacement parts for heavy-duty trucks. From Freightliner and Detroit Diesel to Cummins, Mack, Volvo, and Wabco, our catalog covers the components you need to keep your fleet moving. Every part we stock is tested, reliable, and built to match OEM standards, so you can order with confidence. Our team knows truck parts inside out—from engine cooling and steering to AC systems, alternators, and fuel components. Whether you’re maintaining a single truck or managing an entire fleet, we make it easy to find the right part, at the right time. For when it matters. More about Us.

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FleetPro Truck Center Inc • 4989 Hendersonville Rd, Fletcher, NC 28732 • Phone +1 888-722-1331

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Description:

Restore solid driveline torque transfer, eliminate drivetrain play, and maintain reliable differential pinion shaft engagement with the Genuine Spicer 1760 Series Half Round Differential End Yoke (6.3-4-5221-1X / 6.3452211X). Offered at a discounted value due to a damaged outer box, this brand-new, uninstalled OEM heavy-duty end yoke features a 44-spline internal hub bore engineered specifically for Meritor, Dana Spicer, and Mack drive axles on Class 8 commercial vehicles.

Features:

Brand: Genuine Spicer / Dana Corporation
MPN: 6.3-4-5221-1X / 6.3452211X / 6.3-4-5221-1
Product Condition: Brand New / Damaged Original Retail Box
Product Type: Commercial Truck Differential Pinion End Yoke
Driveline Series: 1760 Series Heavy-Duty
Yoke Design: Half Round (Strap & Bolt Style)
Spline Count: 44 Involute Splines
Hub / Journal Diameter: 3.000 in (76.2 mm)
Bearing Cap Diameter: 1.938 in (49.2 mm)
Distance Across Ears: 7.094 in (177.8 mm)
Vehicle & Axle Compatibility: Class 8 Commercial Vehicles (Freightliner, Kenworth, Peterbilt, International, Volvo, Mack) with Dana Spicer & Meritor Heavy-Duty Drive Axles
Origin: Genuine OEM Spicer Parts

Cross Reference: 6.3-4-5221-1X, 6.3452211X, 6.3-4-5221-1, 63452211X, SPI6.3-4-5221-1X, 1760-4-5221-1X, 1760452211X, 5001748, S-D322, 2104-6.3-4-5221-1X

Part# : 6.3-4-5221-1X
Brand: Spicer