HomeBelts and Cooling > Accessory Drive Belt System ComponentsFour Seasons 45012 Accessory Drive Belt Tensioner Pulley - Power Steering
Part #: 45012

Four Seasons 45012 Accessory Drive Belt Tensioner Pulley - Power Steering

Pulley, Power Steering
⚙️ 87 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley, Power Steering
🚗Fitment: Nissan, Buick, INFINITI, Honda, Chevrolet, Pontiac, and Oldsmobile, Rogue, LaCrosse, M45, Fit, FX45, HHR, Q45, Cavalier, Sunfire, Alero, Grand Am, Skylark, Malibu, Achieva, Beretta, Cutlass Calais, Cutlass Supreme, Grand Prix, and Calais
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Reliable Accessory Drive Belt Tensioner Pulley for Select Vehicles

The Four Seasons Pulley 45012 is a steel accessory drive belt tensioner pulley designed to maintain proper tension on serpentine belts. Engineered for durability and precision, this pulley is compatible with various Buick, Chevrolet, Honda, INFINITI, Nissan, Oldsmobile, and Pontiac models including the Achieva, Alero, Calais, and more.

  • Constructed from durable steel for long-lasting performance
  • Designed as a back idler pulley with a smooth groove surface
  • Compatible with serpentine belt systems with a belt width of approximately 1.06 inches
  • Outside diameter measures 3.25 inches (82.55 mm) for precise fitment
  • Meets or exceeds OEM specifications for reliable operation
  • Single mounting hole design for straightforward installation

Four Seasons Pulley Product Line Overview

The Four Seasons Pulley line focuses on accessory drive belt system components engineered to meet OEM standards. This product line emphasizes quality materials and exact fitment to ensure proper belt tension and smooth operation of engine accessories. The 45012 pulley is part of this line, providing a dependable idler/tensioner pulley solution for multiple vehicle makes and models.

Detailed Product Description and Specifications

The Four Seasons Pulley 45012 is a steel idler/tensioner pulley designed for serpentine belt systems. It features a smooth groove surface and a back idler pulley type, ensuring consistent belt tracking and tension. The pulley has an outside diameter of 3.25 inches (82.55 mm) and a width of 1.06 inches (26.9 mm), matching the belt width of approximately 1.06 inches (7.94 mm). The inside diameter is 1.06 inches (17 mm), with a bore diameter of 0.668 inches, allowing for precise mounting. This pulley is compatible with a range of vehicles including Buick Achieva, Chevrolet Malibu, Honda Fit, INFINITI FX45, Nissan Rogue, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix, among others.

Common Applications and Issues Addressed

  • Maintains proper tension on serpentine belts to prevent slipping
  • Reduces belt noise caused by misalignment or wear
  • Prevents premature belt wear and potential engine accessory failure
  • Replaces worn or damaged idler/tensioner pulleys in compatible vehicles
  • Ensures smooth operation of alternator, power steering, and A/C compressor belts

Installation Notes and Tips

  • Mounting hardware is not included; reuse existing hardware or source appropriate fasteners
  • Ensure the pulley aligns correctly with the serpentine belt path during installation
  • Inspect the belt and other pulleys for wear when replacing this component
  • Torque mounting bolt to manufacturer specifications to avoid damage

Quality Assurance and Warranty Information

The Four Seasons Pulley 45012 meets or exceeds OEM quality standards, ensuring reliable performance and durability. Manufactured from steel, this pulley is built to withstand the demands of accessory drive systems. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number45012
PositionPulley, Power Steering
Belt TypeSerpentine
Belt Width IN1.0625
Belt Width MM7.9375
Bore Dia. IN0.668
DescriptionIdler / Tensioner Pulley
Groove QuantitySmooth
I.D. MM17
Inside Diameter1.06
MaterialSteel
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not Included
O.D. MM82.550
Outside Diameter3.250
Pulley TypeBack Idler
Pulley Width IN1.062
Pulley Width MM26.9
StyleIdler / Tensioner Pulley
TypePulley
Width26.9

This part fits 87 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012NissanRogueN/ASmooth pulley for accessory drive belt tensioner.; Pulley
2011BuickLaCrosse2.4LL4N/APulley
2011NissanRogueN/ASmooth pulley for accessory drive belt tensioner.; Pulley
2010INFINITIM45Power SteeringPulley
2010NissanRogueN/ASmooth pulley for accessory drive belt tensioner.; Pulley
2009INFINITIM45Power SteeringPulley
2009NissanRogueN/ASmooth pulley for accessory drive belt tensioner.; Pulley
2008HondaFitN/APulley
2008INFINITIFX45N/APulley
2008INFINITIM45Power SteeringPulley
2008NissanRogueN/ASmooth pulley for accessory drive belt tensioner.; Pulley
2007HondaFitN/APulley
2007INFINITIFX45N/APulley
2007INFINITIM45Power SteeringPulley
2006ChevroletHHR2.4LL4N/APulley
2006INFINITIFX45N/APulley
2006INFINITIM45Power SteeringPulley
2006INFINITIQ45Power SteeringPulley
2005INFINITIFX45N/APulley
2005INFINITIQ45Power SteeringPulley
2004INFINITIFX45N/APulley
2004INFINITIM45Power SteeringPulley
2004INFINITIQ45Power SteeringPulley
2003INFINITIFX45N/APulley
2003INFINITIM45Power SteeringPulley
2003INFINITIQ45Power SteeringPulley
2002ChevroletCavalier2.2LL4N/APulley
2002INFINITIQ45Power SteeringPulley
2002PontiacSunfire2.2LL4N/APulley
2001ChevroletCavalier2.2LL4N/APulley
2001PontiacSunfire2.2LL4N/APulley
2000ChevroletCavalier2.2LL4N/APulley
2000PontiacSunfire2.2LL4N/APulley
1999ChevroletCavalier2.2LL4N/APulley
1999OldsmobileAlero2.4LL4N/A1st Design; Pulley
1999PontiacGrand Am2.4LL4N/A1st Design; Pulley
1999PontiacSunfire2.2LL4N/APulley
1998BuickSkylark2.4LL4N/APulley
1998ChevroletCavalier2.2LL4N/APulley
1998ChevroletCavalier2.4LL4N/APulley
1998ChevroletMalibu2.4LL4N/APulley
1998OldsmobileAchieva2.4LL4N/APulley
1998PontiacGrand Am2.4LL4N/APulley
1998PontiacSunfire2.2LL4N/APulley
1998PontiacSunfire2.4LL4N/APulley
1997BuickSkylark2.4LL4N/APulley
1997ChevroletCavalier2.4LL4N/APulley
1997ChevroletMalibu2.4LL4N/APulley
1997OldsmobileAchieva2.4LL4N/APulley
1997PontiacGrand Am2.4LL4N/APulley
1997PontiacSunfire2.4LL4N/APulley
1996BuickSkylark2.4LL4N/APulley
1996ChevroletCavalier2.4LL4N/APulley
1996OldsmobileAchieva2.4LL4N/APulley
1996PontiacGrand Am2.4LL4N/APulley
1996PontiacSunfire2.4LL4N/APulley
1995BuickSkylark2.3LL4N/APulley
1995ChevroletCavalier2.3LL4N/APulley
1995OldsmobileAchieva2.3LL4N/APulley
1995PontiacGrand Am2.3LL4N/APulley
1995PontiacSunfire2.3LL4N/APulley
1994BuickSkylark2.3LL4N/APulley
1994OldsmobileAchieva2.3LL4N/APulley
1994PontiacGrand Am2.3LL4N/APulley
1993BuickSkylark2.3LL4N/APulley
1993OldsmobileAchieva2.3LL4N/APulley
1993PontiacGrand Am2.3LL4N/APulley
1992BuickSkylark2.3LL4N/APulley
1992OldsmobileAchieva2.3LL4N/APulley
1992PontiacGrand Am2.3LL4N/APulley
1991BuickSkylark2.3LL4N/APulley
1991OldsmobileCutlass Calais2.3LL4N/APulley
1991OldsmobileCutlass Supreme2.3LL4N/APulley
1991PontiacGrand Am2.3LL4N/APulley
1991PontiacGrand Prix2.3LL4N/APulley
1990BuickSkylark2.3LL4N/APulley
1990OldsmobileCutlass Calais2.3LL4N/APulley
1990OldsmobileCutlass Supreme2.3LL4N/APulley
1990PontiacGrand Am2.3LL4N/APulley
1990PontiacGrand Prix2.3LL4N/APulley
1989BuickSkylark2.3LL4N/APulley
1989OldsmobileCutlass Calais2.3LL4N/APulley
1989PontiacGrand Am2.3LL4N/APulley
1988BuickSkylark2.3LL4N/APulley
1988OldsmobileCutlass Calais2.3LL4N/APulley
1988PontiacGrand Am2.3LL4N/APulley
1987OldsmobileCalais2.3LL4N/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:

1114501221930038011419617450124902250125645706086835218A89300CWK835218KR138227

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