Dorman 05186 Spindle Nut - Rear, Rear Left or Rear Right

Brand Dorman 05186
Position Rear Left, Rear, and Rear Right
Package Contents 1 nut
Thread Size M16-1.5l
Fits Ford, Mazda, and Mercury · 19 vehicles

OE direct replacement. Matches the fit and function of the original spindle nut.

Quality materials. Engineered for reliable performance in driveline service.

Cross-references B00126042 for the same application. See all 1.

$23.59Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 05186 Spindle Nut for Select Rear Applications

Dorman 05186 is a spindle nut built to match the fit and function of the original part on specified vehicles. It uses quality materials for dependable performance in rear axle service, with direct-fit coverage for select Ford, Mercury, and Mazda applications.

Key Features

  • OE-style spindle nut for specified rear axle applications
  • Quality material construction for reliable service life
  • Thread size: M16-1.5l
  • Direct replacement for the original spindle nut on listed vehicles
  • Cross-reference part number: B00126042

Detailed Description

This Dorman 05186 spindle nut is engineered for vehicles that require an M16-1.5l thread size and rear spindle hardware. It is a practical replacement for worn, damaged, or missing spindle nuts on applications such as the 1983-1987 Mazda 626 rear, 1988-1993 Ford Festiva rear left, 1988-1989 Mazda 323 rear right, 1988-1989 Mercury Tracer rear left, and 1991-1994 Mercury Capri rear left. The Dorman 05186 part number is also a useful reference when verifying the correct spindle nut for these specific driveline and axle repairs.

What This Part Helps Address

  • Loose or damaged spindle nut threads
  • Incorrect fitment during rear hub or axle service
  • Wear-related replacement needs on original spindle hardware
  • Restoration work on Ford Festiva, Mercury Tracer, and Mazda 626 rear assemblies
  • Service issues caused by missing or mismatched M16-1.5l spindle hardware

Installation Notes and Tips

Verify thread size, position, and vehicle application before installation. This part is listed for rear left, rear right, and rear positions depending on the vehicle, so match the fitment details exactly to your application. Confirm the spindle and hub hardware condition during service, and follow the vehicle manufacturer’s torque specifications and assembly procedure.

Quality Assurance

Dorman designs this spindle nut to match original part fit and function on the specified vehicles. The part is made from quality materials and built for reliable performance in routine repair and replacement use.

This part fits 19 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
1994MercuryCapriRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1993FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1993MercuryCapriRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1992FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1992MercuryCapriRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1991FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1991MercuryCapriRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1990FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1989FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1989Mazda323FWDRear RightThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1989MercuryTracerRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1988FordFestivaRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1988Mazda323FWDRear RightThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1988MercuryTracerRear LeftThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1987Mazda626RearThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1986Mazda626RearThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1985Mazda626RearThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1984Mazda626RearThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
1983Mazda626RearThread Size: M16-1.5l; Package Quantity: 1; Dorman - AutoGrade - Spindle-Tite!; Packaging Type: Card
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
B00126042