HomeBelts and Cooling > Accessory Drive Belt System ComponentsSKP SK39074 Accessory Drive Belt Tensioner Assembly
Part #: SK39074

SKP SK39074 Accessory Drive Belt Tensioner Assembly

70 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 3, 3 Sport, 5, 6, CX-7, and MX-5 Miata
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Accessory Drive Belt Tensioner for Mazda Applications

Restore proper accessory belt tension with the SKP SK39074 accessory drive belt tensioner assembly. Built with an aluminum housing and a 6-groove V-belt grooved design, this tensioner is made for Mazda belt drive systems that rely on stable belt tracking and consistent pulley pressure.

Compatible With Mazda 5, MX-5 Miata, Mazda 3, Mazda 3 Sport, Mazda 6, and CX-7 applications across the listed model years, SK39074 is a direct-fit replacement for common OE cross-reference numbers used in these vehicles.

Key Features

  • Accessory drive belt tensioner assembly for belt system service
  • Aluminum housing with aluminum finish
  • 6-groove pulley design for V-belt grooved applications
  • Bearing bore inside diameter: 17 mm
  • Bolt diameter: 14 mm
  • Bolt head type: hex/flanged
  • Bolt length: 20 mm (L), 31 mm (OA)
  • Cross-references Four Seasons 39074 for the same application

Detailed Description

The SKP SK39074 is an accessory drive belt tensioner assembly engineered for Mazda belt drive systems that require consistent belt tension and pulley alignment. Its aluminum housing and 6-groove configuration support smooth operation in V-belt grooved accessory drive setups. This part cross-references Four Seasons 39074 for the same application and aligns with OE-style part numbers including L3P915980 and LFN315980A.

Fits 2012-2017 Mazda 5, N/A. Fits 2006-2015 Mazda MX-5 Miata, N/A. Fits 2010-2013 Mazda 3, N/A. Fits 2010-2013 Mazda 3 Sport, N/A. Fits 2006-2013 Mazda 6, N/A. Fits 2007-2012 Mazda CX-7, N/A. If you are servicing a Mazda 3, Mazda 6, or MX-5 Miata accessory belt system, SK39074 provides the correct tensioner assembly format for these listed applications.

What It Helps Address

  • Loose or inconsistent accessory belt tension
  • Belt squeal caused by worn tensioner components
  • Improper belt tracking across accessory pulleys
  • Noise from a failing belt tensioner assembly
  • Service replacement for worn Mazda belt drive hardware

Installation Notes and Quality Assurance

Verify pulley groove count, bolt diameter, and bolt length against the original part before installation. Inspect the accessory belt, idler pulleys, and related drive components during service to confirm the full belt system is in good condition. SKP SK39074 is built to match the listed fitment and OE-style cross-reference applications for Mazda 5, MX-5 Miata, Mazda 3, Mazda 3 Sport, Mazda 6, and CX-7 models.

Quality assurance is supported by the part’s application-specific design, aluminum housing construction, and OE cross-reference alignment for the listed Mazda vehicles.

BrandSKP
Part NumberSK39074
MaterialPlastic
Bolt Head TypeHex/flanged
ColorAluminum
Bearing Bore Inside Diameter0.67
Bearing Bore Inside Diameter17
Groove Quantity6
Bushing IncludedNo
Housing MaterialAluminum
Bolt Diameter14
Belt TypeV-belt grooved
Bolt Length20 mm (l), 31 mm (oa)

This part fits 70 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2017Mazda52.5LL4GASN/A
2016Mazda52.5LL4GASN/A
2015Mazda52.5LL4GASN/A
2015MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2014Mazda52.5LL4GASN/A
2014MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2013Mazda32.3LL4GASN/A
2013Mazda32.5LL4GASN/A
2013Mazda32.3LL4N/A
2013Mazda32.5LL4N/A
2013Mazda32.0LL4N/A
2013Mazda3 Sport2.5LL4GASN/A
2013Mazda3 Sport2.0LL4N/A
2013Mazda3 Sport2.5LL4N/A
2013Mazda52.5LL4GASN/A
2013Mazda52.5LL4N/A
2013Mazda6i2.5LL4GASN/A
2013MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2012Mazda32.3LL4GASN/A
2012Mazda32.5LL4GASN/A
2012Mazda32.3LL4N/A
2012Mazda32.5LL4N/A
2012Mazda32.0LL4N/A
2012Mazda3 Sport2.5LL4GASN/A
2012Mazda3 Sport2.0LL4N/A
2012Mazda3 Sport2.5LL4N/A
2012Mazda52.5LL4GASN/A
2012Mazda52.5LL4N/A
2012Mazda6i2.5LL4GASN/A
2012MazdaCX-72.3LL4GASN/A
2012MazdaCX-72.5LL4GASN/A
2012MazdaCX-72.3LL4N/A
2012MazdaCX-72.5LL4N/A
2012MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2011Mazda32.3LL4GASN/A
2011Mazda32.5LL4GASN/A
2011Mazda32.3LL4N/A
2011Mazda32.5LL4N/A
2011Mazda3 Sport2.5LL4GASN/A
2011Mazda6i2.5LL4GASN/A
2011MazdaCX-72.3LL4GASN/A
2011MazdaCX-72.5LL4GASN/A
2011MazdaCX-72.3LL4N/A
2011MazdaCX-72.5LL4N/A
2011MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2010Mazda32.3LL4GASN/A
2010Mazda32.5LL4GASN/A
2010Mazda32.3LL4N/A
2010Mazda32.5LL4N/A
2010Mazda3 Sport2.5LL4GASN/A
2010Mazda6i2.5LL4GASN/A
2010MazdaCX-72.3LL4GASN/A
2010MazdaCX-72.5LL4GASN/A
2010MazdaCX-72.3LL4N/A
2010MazdaCX-72.5LL4N/A
2010MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2009Mazda6i2.5LL4GASN/A
2009MazdaCX-72.3LL4GASN/A
2009MazdaCX-72.3LL4N/A
2009MazdaMX-5 MiataAutomatic2.0LL4GASN/A
2008Mazda6i2.3LL4GASN/A
2008MazdaCX-72.3LL4GASN/A
2008MazdaCX-72.3LL4N/A
2008MazdaMX-5 MiataTouringAutomatic2.0LL4GASN/A
2007Mazda62.3LL4GASN/A
2007MazdaCX-72.3LL4GASN/A
2007MazdaCX-72.3LL4N/A
2007MazdaMX-5 MiataTouringAutomatic2.0LL4GASN/A
2006Mazda62.3LL4GASN/A
2006MazdaMX-5 MiataTouringAutomatic2.0LL4GASN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

39074L3P915980L3P915980DLFG115980ALFG115980BLFG115980CLFN315980A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.