HomeBelts and Cooling > Accessory Drive Belt System ComponentsFour Seasons 45078 Accessory Drive Belt Idler Pulley
Part #: 45078

Four Seasons 45078 Accessory Drive Belt Idler Pulley

Pulley
⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley
🚗Fitment: Nissan, Frontier, Rogue, and Sentra
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Reliable Accessory Drive Belt Idler Pulley for Nissan Vehicles

The Four Seasons Pulley 45078 is a durable accessory drive belt idler pulley designed specifically for Nissan Frontier, Rogue, Rogue Select, and Sentra models. Engineered to meet or exceed OEM standards, this steel pulley ensures consistent serpentine belt tension and smooth operation.

Key Features of Four Seasons Pulley 45078

  • Constructed from high-quality steel for strength and longevity
  • Black finish for corrosion resistance and durability
  • Compatible with serpentine belts featuring 6 grooves
  • Inside diameter of 0.472 inches (12.0 mm) for precise fitment
  • Outside diameter measures 2.750 inches (70.0 mm)
  • Width of 1.000 inch (25.4 mm) suitable for standard belt widths
  • Single mount hole design for straightforward installation
  • Meets or exceeds OEM specifications for Nissan vehicles

About the Four Seasons Pulley Product Line

The Four Seasons Pulley line focuses on accessory drive belt system components that provide reliable tension and guidance for serpentine belts. This product line emphasizes durability and exact fitment, ensuring that each pulley supports optimal engine performance and belt longevity. The 45078 idler pulley is part of this line, designed to maintain proper belt alignment and tension in Nissan Frontier, Rogue, Rogue Select, and Sentra models.

Detailed Product Description

The Four Seasons Pulley 45078 is an idler/tensioner pulley crafted from steel with a black finish to resist wear and corrosion. It features six grooves to accommodate serpentine belts with a 1.000 inch (25.4 mm) width, matching the belt specifications of select Nissan vehicles. The pulley’s 0.472 inch (12.0 mm) inside diameter and 2.750 inch (70.0 mm) outside diameter ensure a precise fit and smooth belt operation. Designed with a single mounting hole, this pulley is engineered for easy installation and reliable performance. It is compatible with Nissan Frontier, Rogue, Rogue Select, and Sentra models, providing a direct replacement that meets or exceeds OEM quality standards.

Common Applications and Issues Addressed

  • Restores proper serpentine belt tension and alignment
  • Eliminates belt slippage and squealing noises
  • Prevents premature belt wear caused by misalignment
  • Replaces worn or damaged idler pulleys in Nissan vehicles
  • Supports smooth operation of accessory drive components

Installation Notes and Tips

  • Verify compatibility with your Nissan Frontier, Rogue, Rogue Select, or Sentra model before installation
  • Mounting hardware is not included; reuse existing hardware or source appropriate fasteners
  • Inspect serpentine belt condition during installation and replace if necessary
  • Ensure proper torque specifications are followed to avoid pulley damage

Quality Assurance and Warranty

The Four Seasons Pulley 45078 is manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While mounting hardware is not included, the pulley’s steel construction and precise dimensions contribute to long service life. Please consult product documentation or Four Seasons for specific warranty details related to this part.

BrandFour Seasons
Part Number45078
PositionPulley
Belt TypeSerpentine
Belt Width IN1.000
Belt Width MM25.4
Bore Dia. IN.472
ColorBlack
DescriptionIdler / Tensioner Pulley
Groove Quantity6
I.D. MM12.0
Inside Diameter.472
MaterialSteel
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not Included
O.D. MM70.0
Outside Diameter2.750
Pulley TypeIdler Pulley
Pulley Width IN1.062
Pulley Width MM26.9
StyleIdler / Tensioner Pulley
TypePulley
Width27

This part fits 29 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019NissanFrontier2.5LL4N/Aw/ AC; Pulley
2018NissanFrontier2.5LL4N/Aw/ AC; Pulley
2017NissanFrontier2.5LL4N/Aw/ AC; Pulley
2016NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2015NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2015NissanRogue SelectN/AGrooved Pulley; Pulley
2014NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2014NissanRogue SelectN/AGrooved Pulley; Pulley
2013NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2013NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2012NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2012NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2012NissanSentra2.5LL4N/APulley
2011NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2011NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2011NissanSentra2.5LL4N/APulley
2010NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2010NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2010NissanSentra2.5LL4N/APulley
2009NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2009NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2009NissanSentra2.5LL4N/APulley
2008NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2008NissanRogueN/AAccessory Drive Belt Tensioner Pulley with a grooved pulley.; Pulley
2008NissanSentra2.5LL4N/APulley
2007NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2007NissanSentra2.5LL4N/APulley
2006NissanFrontier2.5LL4N/ACompatible with vehicles equipped with air conditioning.; Pulley
2005NissanFrontier2.5LL4N/APulley

* 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:

11925EA00011925EA00A3674345078507883593889540A79786

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