HomeBelts and Cooling > Accessory Drive Belt System ComponentsFour Seasons 45072 Accessory Drive Belt Tensioner Pulley - Accessory Drive, Main Drive or Serpentine
Part #: 45072

Four Seasons 45072 Accessory Drive Belt Tensioner Pulley - Accessory Drive, Main Drive or Serpentine

Pulley, Accessory Drive, Main Drive, and Serpentine
⚙️ 76 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$26.19Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley, Accessory Drive, Main Drive, and Serpentine
🚗Fitment: Buick, Cadillac, Chevrolet, Ford, Mazda, Mercury, Oldsmobile, and Pontiac, 6, Aurora, Bonneville, Camaro, DeVille, DTS, Eldorado, Escape, Firebird, Focus, G8, GTO, Intrigue, Lucerne, Mariner, Seville, and Tribute
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Accessory Drive Belt Tensioner Pulley for Select Vehicles

The Four Seasons Pulley 45072 is a durable accessory drive belt tensioner pulley designed to maintain proper tension on serpentine belts. Engineered for compatibility with various Buick, Cadillac, Chevrolet, Ford, Mazda, Mercury, Oldsmobile, and Pontiac models, this pulley ensures smooth operation of your vehicle's belt system.

  • Constructed from sturdy steel with a black finish for corrosion resistance
  • Measures 3.000 inches outside diameter and 1.18 inches pulley width
  • Designed for serpentine belt systems with a smooth groove surface
  • Inside diameter of 0.6875 inches and bore diameter of 0.668 inches
  • Meets or exceeds OEM specifications for reliable fit and function
  • Single mount hole for secure installation (mounting hardware not included)

Four Seasons Pulley Product Line Overview

The Four Seasons Pulley line focuses on precision-engineered pulleys and tensioners that support accessory drive belt systems. This product line emphasizes durability and OEM compliance, providing components like the 45072 pulley that are designed to integrate seamlessly with factory belt configurations on a range of domestic and import vehicles.

Product Details and Specifications

The Four Seasons Pulley 45072 is a back idler style idler/tensioner pulley constructed from steel, finished in black to resist wear and corrosion. It features a smooth groove surface suitable for serpentine belts with a belt width of approximately 1.3125 inches (7.9375 mm). The pulley’s outside diameter is 3.000 inches (76.2 mm), with a width of 1.18 inches (30 mm), ensuring proper belt alignment and tension. The bore diameter measures 0.668 inches (17.463 mm), and it mounts with a single hole, designed to meet or exceed OEM standards for fit and durability.

Compatible Vehicles and Applications

  • Buick models including Lucerne and Rendezvous
  • Cadillac DeVille, DTS, Eldorado, Seville, and STS
  • Chevrolet Camaro, G8, and GTO
  • Ford Escape, Focus, and Mariner
  • Mazda Tribute
  • Mercury Mariner
  • Oldsmobile Aurora, Intrigue
  • Pontiac Bonneville, Firebird, and Grand Prix

Common Issues Addressed by This Pulley

  • Excessive belt noise due to worn or misaligned pulleys
  • Serpentine belt slippage or improper tension
  • Premature belt wear caused by faulty tensioner components
  • Vibration or squealing from accessory drive system
  • Failure of original pulley leading to accessory drive malfunction

Installation Notes and Tips

Ensure the mounting surface is clean and free of debris before installation. This pulley mounts with a single bolt; verify the bolt size and torque specifications according to the vehicle manufacturer’s guidelines. Since mounting hardware is not included, reuse the original bolt if in good condition or source an appropriate replacement. Inspect the serpentine belt for wear and replace if necessary during pulley installation.

Quality Assurance and Warranty

The Four Seasons Pulley 45072 is manufactured to meet or exceed OEM quality standards, providing reliable performance in accessory drive belt systems. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.

BrandFour Seasons
Part Number45072
PositionPulley, Accessory Drive, Main Drive, and Serpentine
MaterialSteel
ColorBlack
Inside Diameter0.6875
Groove QuantitySmooth
Width30
Outside Diameter3.000
Belt TypeSerpentine
Belt Width IN1.3125
Belt Width MM7.9375
Bore Dia. IN0.668
DescriptionIdler / tensioner pulley
I.D. MM17.463
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not included
O.D. MM76.200
Pulley TypeBack idler
Pulley Width IN1.18
Pulley Width MM30
StyleIdler / tensioner pulley
TypePulley

This part fits 76 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011BuickLucerne4.6LV8SerpentinePulley
2011CadillacDTSSerpentinePulley
2011MazdaTribute2.5LL4N/ASteel; Pulley
2010BuickLucerne4.6LV8SerpentinePulley
2010CadillacDTSSerpentinePulley
2010MazdaTribute3.0LV6N/ASmooth Pulley; Pulley
2009BuickLucerne4.6LV8SerpentinePulley
2009CadillacDTSSerpentinePulley
2009MazdaTribute2.5LL4GASN/ASteel; Pulley
2009PontiacG86.0LV8Main DrivePulley
2009PontiacG86.2LV8Main DrivePulley
2008BuickLucerne4.6LV8Accessory DrivePulley
2008CadillacDTSSerpentinePulley
2008FordEscape2.3LL4N/APulley
2008Mazda62.3LL4N/APulley
2008MazdaTribute3.0LV6N/ASmooth Pulley; Pulley
2008MercuryMariner2.3LL4N/ASmooth Pulley; Pulley
2008PontiacG86.0LV8N/APulley
2007BuickLucerne4.6LV8Accessory DrivePulley
2007CadillacDTSSerpentinePulley
2007FordEscape2.3LL4N/APulley
2007FordFocus2.0LL4N/ASmooth Pulley; Pulley
2007Mazda62.3LL4N/APulley
2007MercuryMariner2.3LL4N/ASmooth Pulley; Pulley
2006BuickLucerne4.6LV8Accessory DrivePulley
2006CadillacDTSSerpentinePulley
2006FordEscape2.3LL4N/APulley
2006FordFocusN/ASmooth Pulley; Pulley
2006Mazda62.3LL4N/APulley
2006MercuryMariner2.3LL4N/ASmooth Pulley; Pulley
2006PontiacGTOMain DrivePulley
2005CadillacDeVilleAccessory DrivePulley
2005FordEscape2.3LL4N/APulley
2005FordFocus2.3LL4N/ASmooth Pulley; Pulley
2005Mazda62.3LL4N/APulley
2005MercuryMariner2.3LL4N/ASmooth Pulley; Pulley
2005PontiacBonneville4.6LV8SerpentinePulley
2005PontiacGTOMain DrivePulley
2004CadillacDeVilleAccessory DrivePulley
2004CadillacSevilleAccessory DrivePulley
2004FordFocus2.3LL4N/APulley
2004Mazda62.3LL4N/APulley
2004PontiacBonneville4.6LV8SerpentinePulley
2004PontiacGTOMain DrivePulley
2003CadillacDeVilleAccessory DrivePulley
2003CadillacSevilleAccessory DrivePulley
2003FordFocus2.3LL4N/APulley
2003Mazda62.3LL4N/APulley
2003OldsmobileAuroraAccessory DrivePulley
2002CadillacDeVilleAccessory DrivePulley
2002CadillacEldoradoAccessory DrivePulley
2002CadillacSevilleAccessory DrivePulley
2002ChevroletCamaro5.7LV8Main DrivePulley
2002OldsmobileAurora4.0LV8Accessory DrivePulley
2002OldsmobileAurora3.5LV6N/APulley
2002OldsmobileIntrigueN/APulley
2002PontiacFirebird5.7LV8Main DrivePulley
2001CadillacDeVilleAccessory DrivePulley
2001CadillacEldoradoAccessory DrivePulley
2001CadillacSevilleAccessory DrivePulley
2001ChevroletCamaro5.7LV8Main DrivePulley
2001OldsmobileAurora4.0LV8Accessory DrivePulley
2001OldsmobileAurora3.5LV6N/APulley
2001OldsmobileIntrigueN/APulley
2001PontiacFirebird5.7LV8Main DrivePulley
2000CadillacDeVilleAccessory DrivePulley
2000CadillacEldoradoAccessory DrivePulley
2000CadillacSevilleAccessory DrivePulley
2000OldsmobileIntrigueN/APulley
1999CadillacDeVilleAccessory DrivePulley
1999CadillacEldoradoAccessory DrivePulley
1999CadillacSevilleAccessory DrivePulley
1999OldsmobileIntrigue3.5LV6N/APulley
1998CadillacDeVilleAccessory DrivePulley
1998CadillacEldoradoAccessory DrivePulley
1998CadillacSevilleAccessory DrivePulley

* 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:

1255755412563326194182263804145072507283524089159A89361

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