Dorman 615-145 Spindle Nut - Front or Rear

Brand Dorman 615-145
Position Front
Package Contents 2 Nuts
Thread Size M20-1.50
Fits Mazda and Ford · 30 vehicles

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

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

Spindle nut. A precise hardware fit for secure axle assembly service.

Cross-references D06Y33042 and E9BZ3B477A for the same application. See all 2.

$38.85Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $38.85
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 615-145 Spindle Nut for Mazda Miata

Dorman 615-145 is a spindle nut built to match the fit and function of the original hardware on specified vehicles. It uses quality materials for reliable performance in front and rear hub service on select Mazda Miata, Ford Festiva, and Mazda 323 applications.

Key Features

  • Direct replacement spindle nut for OE-style fit and function
  • Thread size: M20-1.50
  • Designed for front and rear axle service where specified
  • Made from quality materials for dependable fastening performance
  • Cross-references Ford D06Y33042 and E9BZ3B477A for the same application

Detailed Description

This Dorman spindle nut, part number 615-145, is engineered for select driveline and axle applications where the original nut must secure hub and spindle components to specification. It is a practical replacement for Mazda Miata front and rear service, including 1990-1997 Mazda Miata front and rear and 1999-2005 Mazda Miata front, as well as select Ford Festiva and Mazda 323 front applications. The M20-1.50 thread size supports correct fitment on the listed vehicles, helping maintain proper assembly integrity during hub or bearing work.

What It Helps Address

  • Worn or damaged spindle nut threads
  • Improper hub retention during axle or bearing service
  • Replacement needs after spindle or hub disassembly
  • Fitment issues on select Mazda Miata, Ford Festiva, and Mazda 323 applications

Installation Notes and Tips

Verify thread size and vehicle position before installation. Use the listed fitment details for your exact year, make, model, and front or rear application. Confirm the spindle and hub components are clean and undamaged so the nut seats correctly. For 1989 Ford Festiva front and 1989 Mazda 323 front or rear applications, review the VIN and production notes shown in the fitment data.

Quality Assurance

Dorman designs this spindle nut to match original part fit and function on specified vehicles. Part number 615-145 is built from quality materials to support reliable service in the applications listed.

This part fits 30 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2005MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
2004MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
2003MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
2002MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
2001MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
2000MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1999MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1997MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1997MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1996MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1996MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1995MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1995MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1994MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1994MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1993FordFestivaFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1993MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1993MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1992FordFestivaFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1992MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1992MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1991FordFestivaFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1991MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1991MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1990FordFestivaFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1990MazdaMiataFrontThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1990MazdaMiataRearThread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989FordFestivaFrontFrom 2/01/89; Thread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989Mazda323FrontFrom VIN 361094; Thread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
1989Mazda323AWDRearFrom VIN 361397; Thread Size: M20-1.50; Package Quantity: 2; Dorman - AutoGrade - Boxed; Packaging Type: Box
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
D06Y33042E9BZ3B477A