HomeEngine > Cylinder Block ComponentsMasterPro A4339 Engine Mount - Rear or Rear Right
Part #: A4339

MasterPro A4339 Engine Mount - Rear or Rear Right

Rear Right
⚙️ 32 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, QX60, Pathfinder, and Altima
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of MasterPro MRC Mounts Engine Mount A4339

The MasterPro MRC Mounts Engine Mount A4339 is designed for reliable rear engine support in select INFINITI and Nissan vehicles. Engineered as a solid OEM replacement, this mount ensures proper alignment and vibration control for the rear right position on models like the Nissan Altima, Pathfinder, and INFINITI QX60.

  • Solid type engine mount with rubber bushing for vibration dampening
  • Constructed with aluminum bracket and housing for durability
  • Black rubber bushing and silver aluminum bracket for corrosion resistance
  • Designed for rear right mounting position with three mounting holes
  • Standard replacement grade meeting or exceeding OEM specifications
  • Includes mounting bracket but excludes mounting hardware and heat shield
  • Compatible with INFINITI Altima, Nissan Pathfinder, and QX60

Detailed Product Description

This MasterPro engine mount, part number A4339, is crafted with a solid design featuring a black rubber bushing that absorbs engine vibrations effectively. The aluminum bracket and housing provide a lightweight yet sturdy structure, suitable for the rear right mounting position on compatible vehicles. With three mounting holes, it offers secure attachment points to maintain engine stability. This mount is a standard replacement part that meets or exceeds original equipment manufacturer specifications, ensuring it performs to factory standards without compromise.

About the MRC Mounts Product Line

The MRC Mounts line by MasterPro focuses on delivering OEM replacement engine mounts that balance durability and performance. This product line emphasizes solid mount types with quality materials such as aluminum brackets and rubber bushings to provide reliable engine support and vibration isolation. The A4339 mount is part of this line, designed specifically for rear engine mounting positions in select Nissan and INFINITI models, aligning with the brand’s commitment to meet original equipment standards.

Common Applications and Issues Addressed

  • Reduces excessive engine vibration and noise in the rear right mounting area
  • Prevents engine misalignment that can cause drivetrain stress
  • Replaces worn or damaged mounts to restore proper engine support
  • Helps eliminate engine movement that may affect vehicle handling
  • Addresses mounting bracket corrosion or fatigue in older mounts

Installation Notes and Tips

Installation of the MasterPro MRC Mounts Engine Mount A4339 requires removal of the old mount and securing the new mount using the existing hardware, as mounting hardware is not included. Ensure the vehicle is safely supported and the engine is properly aligned before tightening the mount. The three mounting holes should align precisely with the vehicle’s frame for a secure fit. Professional installation is recommended for accurate positioning and torque specifications.

Quality Assurance and Warranty

This engine mount meets or exceeds original equipment manufacturer specifications, providing assurance of fit and function. While mounting hardware and instructions are not included, the part is designed for straightforward replacement. MasterPro products typically come with a limited warranty covering defects in materials and workmanship; please refer to the specific warranty terms provided by the distributor or manufacturer.

This part fits 32 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersFuel TypePositionNotes
2020INFINITIQX602.5LL4Rear RightOEM Replacement; MRC Mounts
2019INFINITIQX602.5LL4Rear RightOEM Replacement; MRC Mounts
2018INFINITIQX602.5LL4Rear RightOEM Replacement; MRC Mounts
2017INFINITIQX602.5LL4Rear RightFits multiple vehicle models with manual transmissions for easy installation.
2016INFINITIQX602.5LL4Rear RightFits multiple vehicle models with manual transmissions for easy installation.
2015INFINITIQX602.5LL4Rear RightFits multiple vehicle models with manual transmissions for easy installation.
2015NissanPathfinder2.5LL4Rear RightOEM Replacement; MRC Mounts
2014INFINITIQX602.5LL4Rear RightFits multiple vehicle models with manual transmissions for easy installation.
2014NissanPathfinder2.5LL4Rear RightFits multiple vehicle models with manual transmissions for easy installation.
2013NissanAltimaCoupe2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2012NissanAltimaSL2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2012NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2012NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2011NissanAltimaSL2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2011NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2011NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2011NissanAltimaHybrid2.5LL4ELECTRIC/GASRearFits multiple vehicle models with manual transmissions for easy installation.
2010NissanAltimaSL2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2010NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2010NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2010NissanAltimaHybrid2.5LL4ELECTRIC/GASRearFits multiple vehicle models with manual transmissions for easy installation.
2009NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2009NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2009NissanAltimaHybrid2.5LL4ELECTRIC/GASRearFits multiple vehicle models with manual transmissions for easy installation.
2008NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2008NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2008NissanAltimaHybrid2.5LL4ELECTRIC/GASRearFits multiple vehicle models with manual transmissions for easy installation.
2008NissanAltimaSL2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2007NissanAltimaBase2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2007NissanAltimaS2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.
2007NissanAltimaHybrid2.5LL4ELECTRIC/GASRearFits multiple vehicle models with manual transmissions for easy installation.
2007NissanAltimaSL2.5LL4RearFits multiple vehicle models with manual transmissions for easy installation.

* 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:

9446

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