Dorman 615-100 Spindle Nut - Front or Rear
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Dorman

Dorman 615-100 Spindle Nut - Front or Rear

Brand Dorman 615-100
Position Front
Package Contents 5 Nuts
Thread Size M20-1.50
Fits Mercury, Ford, and Mazda · 19 vehicles

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

Quality materials. Engineered for reliable performance in demanding driveline service.

Spindle nut. A hardware fastener made for secure axle assembly.

Cross-references Beck/Arnley 103-0518, AT98 and B00133042 for the same application. See all 4.

$43.45Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $43.45
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 615-100 Spindle Nut for OE-Style Service

Dorman 615-100 is a spindle nut built to match the fit and function of the original hardware on specified vehicles. It uses quality materials for dependable performance in front and rear hub service on select Ford, Mazda, and Mercury applications.

  • Spindle nut for OE-style replacement on specified driveline and axle applications
  • Thread size: M20-1.50
  • Made from quality materials for reliable service
  • Direct-fit replacement for select front and rear applications
  • Cross-reference: Beck/Arnley 103-0518

Detailed Application Coverage

This Dorman spindle nut is used in hub and axle assemblies where the original nut must match the factory thread specification and seating design. It is listed for select Mercury Capri front applications, Ford Festiva front applications, Mazda 323 front and rear applications, Mercury Tracer front applications, and Mazda 626 front applications. Part number 615-100 is a practical OE-style replacement when servicing vehicles that require M20-1.50 spindle threads.

What This Part Helps Address

  • Worn or damaged spindle nut threads
  • Incorrect thread pitch during hub or axle service
  • Loss of proper retention at the spindle assembly
  • Replacement needs during front or rear bearing work
  • Fitment issues on select Ford, Mazda, and Mercury models

Installation Notes and Tips

Verify the thread size before installation and confirm the vehicle’s position-specific fitment. Use the vehicle notes to match the correct year breakpoints, including 1989 Mazda 323 front and rear applications with VIN limits and 1989 Ford Festiva front applications through 1/31/89. Confirm the spindle and hub components are clean and undamaged before installing the new nut.

Quality Assurance

Dorman designs this spindle nut to match original part fit and function on specified vehicles. The part number 615-100 is engineered for reliable performance using quality materials and is backed by Dorman’s OE-style replacement approach.

Compatible Vehicles

  • Fits 1991-1994 Mercury Capri, front
  • Fits 1989 Ford Festiva, front
  • Fits 1989 Mazda 323, front
  • Fits 1989 Mazda 323, rear
  • Fits 1988-1989 Mercury Tracer, front
  • Fits 1988 Ford Festiva, front
  • Fits 1986-1988 Mazda 323, front
  • Fits 1988 Mazda 323, rear
  • Fits 1983-1987 Mazda 626, front
This part fits 19 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
1994MercuryCapri—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1993MercuryCapri—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1992MercuryCapri—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1991MercuryCapri—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1989FordFestiva—FrontTo 1/31/89; Thread Size: M20-1.50; Package Quantity: 5; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989Mazda323—FrontTo VIN 361093; Thread Size: M20-1.50; Package Quantity: 5; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989Mazda323AWDRearTo VIN 361396; Thread Size: M20-1.50; Package Quantity: 5; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989MercuryTracer—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1988FordFestiva—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1988Mazda323—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1988Mazda323AWDRearThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1988MercuryTracer—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1987Mazda323—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1987Mazda626—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1986Mazda323—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1986Mazda626—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1985Mazda626—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1984Mazda626—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
1983Mazda626—FrontThread Size: M20-1.50; Quantity: 5; Boxed; Packaging Type: Box
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Beck/Arnley — 103-0518AT98B00133042E7GZ3B477A