HomeBelts and Cooling > Accessory Drive Belt System ComponentsFour Seasons 45957 Accessory Drive Belt Idler Pulley - Air Conditioning or Power Steering
Part #: 45957

Four Seasons 45957 Accessory Drive Belt Idler Pulley - Air Conditioning or Power Steering

Pulley, Air Conditioning and Power Steering
⚙️ 48 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley, Air Conditioning and Power Steering
🚗Fitment: Cadillac, Chevrolet, GMC, Hyundai, Mitsubishi, Nissan, and Pontiac, Celebrity, Cimarron, D21, Excel, Frontier, G10, G20, G30, J2000 Sunbird, Pathfinder, Precis, Savana 3500, Scoupe, Sunbird, and Xterra
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Reliable Accessory Drive Belt Idler Pulley for Select Vehicles

The Four Seasons Pulley 45957 is a durable accessory drive belt idler pulley designed to maintain proper tension and routing of V-belts in various vehicle models. Engineered with steel construction and precise dimensions, this pulley supports smooth belt operation for Cadillac, Chevrolet, GMC, Hyundai, Mitsubishi, Nissan, and Pontiac vehicles.

  • Constructed from robust steel material for long-lasting performance
  • Black finish with a single groove compatible with V-belts
  • Inside diameter of 0.6875 inches and outside diameter of 3.125 inches
  • Width of 12.7 mm (0.5 inches) suitable for 0.5 inch wide belts
  • Meets or exceeds OEM specifications for reliable fit and function
  • Designed as an idler/tensioner pulley with one mounting hole

Four Seasons Pulley Product Line Overview

The Four Seasons Pulley line focuses on precision-engineered pulleys that ensure proper belt tension and alignment in accessory drive systems. The 45957 idler pulley is part of this line, offering compatibility with multiple vehicle makes and models while maintaining OEM quality standards. This product line emphasizes durability and exact fitment to support accessory components like alternators, power steering pumps, and air conditioning compressors.

Detailed Product Description and Specifications

This accessory drive belt idler pulley features a steel construction finished in black, providing strength and corrosion resistance. It has a single groove designed for V-belt applications with a belt width of 0.5 inches (12.7 mm). The pulley measures 3.125 inches (79.375 mm) in outside diameter and 0.6875 inches (17.463 mm) in inside diameter, with a width of 12.7 mm (0.5 inches). The part number 45957 ensures compatibility with specific vehicle models including Cadillac Celebrity, Chevrolet Cimarron, GMC Savana 3500, Hyundai Excel, Mitsubishi Precis, Nissan Pathfinder, and Pontiac Sunbird among others. This idler pulley is intended to maintain proper belt tension and routing, preventing slippage and premature belt wear.

Common Applications and Problem Solving

  • Restores proper tension to accessory drive V-belts
  • Eliminates belt squeal caused by misalignment or wear
  • Prevents premature belt damage and extends belt life
  • Supports smooth operation of alternator, power steering, and A/C belts
  • Replaces worn or damaged idler pulleys in compatible vehicles

Installation Notes and Tips

When installing the Four Seasons Pulley 45957, ensure the mounting surface is clean and free of debris. This pulley includes one mounting hole and does not come with installation hardware, so retain or source the appropriate fasteners. Verify belt alignment and tension after installation to avoid belt slippage or noise. Refer to vehicle-specific service manuals for torque specifications and installation procedures.

Quality Assurance and Warranty Information

The Four Seasons Pulley 45957 meets or exceeds OEM standards, providing reliable performance and fitment. Manufactured with quality steel and precision engineering, this idler pulley is designed for durability in demanding automotive environments. Warranty coverage details should be confirmed with the product supplier or manufacturer.

BrandFour Seasons
Part Number45957
PositionPulley, Air Conditioning and Power Steering
MaterialSteel
ColorBlack
Inside Diameter0.6875
Groove Quantity1
Width12.7
Outside Diameter3.125
Belt TypeV-belt
Belt Width IN0.500
Belt Width MM12.700
Bore Dia. IN.69
DescriptionIdler / tensioner pulley
I.D. MM17.463
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not included
O.D. MM79.375
Pulley TypeIdler pulley
Pulley Width IN.5
Pulley Width MM12.7
StyleIdler / tensioner pulley
TypePulley

This part fits 48 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2017GMCSavana 35006.0LV8N/APulley
2004NissanXterra2.4LL4N/APulley
2003NissanFrontier2.4LL4Power SteeringPulley
2003NissanXterra2.4LL4N/APulley
2002NissanFrontier2.4LL4Power SteeringPulley
2002NissanXterra2.4LL4N/APulley
2001NissanFrontier2.4LL4Power SteeringPulley
2001NissanXterra2.4LL4N/APulley
2000NissanFrontier2.4LL4Power SteeringPulley
2000NissanXterra2.4LL4N/APulley
1999NissanFrontier2.4LL4Power SteeringPulley
1998NissanFrontierPower SteeringPulley
1994HyundaiExcelN/APulley
1993HyundaiExcelN/APulley
1992HyundaiExcelN/APulley
1992HyundaiScoupeN/APulley
1992MitsubishiPrecisN/APulley
1991HyundaiExcelN/APulley
1991HyundaiScoupeN/APulley
1991MitsubishiPrecisN/APulley
1990HyundaiExcelN/APulley
1990MitsubishiPrecisN/APulley
1989HyundaiExcelN/APulley
1989NissanD212.4LL4Power SteeringPulley
1988HyundaiExcelN/APulley
1988NissanD212.4LL4Power SteeringPulley
1987HyundaiExcelN/APulley
1987NissanD212.4LL4Power SteeringPulley
1987NissanPathfinder2.4LL4Power SteeringPulley
1986ChevroletCelebrity2.5LL4N/APulley
1986ChevroletG10N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986ChevroletG20N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986ChevroletG30N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986GMCG1500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986GMCG2500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986GMCG3500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1986HyundaiExcelN/APulley
1986NissanD212.4LL4Power SteeringPulley
1986PontiacSunbird2.0LL4N/APulley
1985ChevroletG10N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985ChevroletG20N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985ChevroletG30N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985GMCG1500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985GMCG2500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985GMCG3500N/ACompatible with vehicles equipped with air conditioning.; Pulley
1985PontiacJ2000 Sunbird2.0LL4N/APulley
1984CadillacCimarronN/APulley
1983CadillacCimarronN/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:

11145957129212511540478191901332097772312921251231292400023129240012312932000380374196164595749033595780603883595789036A79777CWK835957KR131113

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