Details

• Brand:

  

  

• SKU:

  W520506-S437

• Positions: Left, Right, Front
• Other Names:

  Nut Hex

• Description:

  This is a genuine Ford standardized service nut carrying the W520506-S437 service number, an M14 hex nut most often cataloged as a wheel lug nut or spacer nut. It is a heavy-duty wheel fastener used on dual-rear-wheel and single-wheel trucks. Real applications that share this exact service number include the Ford F-250, F-350, F-450, F-550 and F-600 Super Duty in both four-wheel-drive and rear-wheel-drive forms, and it appears on other configurations because Ford consolidates common threaded hardware under one number. This is a single-use fastener that Ford specifies cannot be reused or reinstalled once loosened, and a fresh one should be fitted on reassembly. A wheel nut that is loose, missing or reused past its clamp load is a serious safety concern, because it can let the wheel develop play, elongate the stud holes, cause vibration and ultimately allow a wheel to separate. Wheel nuts are torqued to a specific value and rechecked after the first miles of service. Because one service number is listed against several model years and configurations, confirm the exact fit for your vehicle against your VIN before ordering so the thread size and seat match your wheel.

• Notes: Included with spacer. Part cannot be reused/reinstalled.
• Replaces:

  w520506s309

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