HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K040506 Serpentine Belt - Fan and Power Steering
Part #: K040506

Gates K040506 Serpentine Belt - Fan and Power Steering

Premium OE Micro-V Belt, Fan and Power Steering
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Premium OE Micro-V Belt, Fan and Power Steering
Fitment: INFINITI, Q45
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Premium OE Micro-V Belt K040506

The Gates Premium OE Micro-V Belt K040506 is engineered for reliable performance in automotive accessory drive systems. Designed specifically for the INFINITI Q45, this serpentine belt ensures consistent power transmission to engine components.

  • Top width options: 0.56 inch and 14 mm
  • Effective length: 1285 mm (50.606 inches)
  • Outside circumference: 1299 mm (51.125 inches)
  • Constructed with durable EPDM belt material
  • Polyester cord material for enhanced strength
  • 4-rib automotive v-ribbed belt (standard) design
  • Cross section designation: K
  • Washer pump included made of EPDM
  • OE comparison rating: OE performance

Detailed Product Description

The Gates Premium OE Micro-V Belt K040506 is a serpentine belt designed to meet original equipment (OE) specifications for the INFINITI Q45. Featuring a 4-rib design with a K cross section, this automotive v-ribbed belt provides efficient power transfer to multiple engine accessories such as the alternator, power steering pump, and air conditioning compressor. The belt’s EPDM (ethylene propylene diene monomer) material offers resistance to heat, ozone, and wear, contributing to longer service life. Reinforced with polyester cords, the belt maintains flexibility while resisting stretching and deformation under load. The included EPDM washer pump enhances compatibility and durability within the accessory drive system.

About the Premium OE Micro-V Belt Product Line

The Premium OE Micro-V Belt line by Gates is designed to deliver OE-level performance and fitment. These belts are manufactured to match the exact dimensions and materials used in original equipment, ensuring proper tension and alignment in the accessory drive system. The K040506 part number is part of this line, providing a reliable replacement option for vehicles like the INFINITI Q45 that require precise belt specifications.

Common Applications and Issues Addressed

  • Replacement for worn or cracked serpentine belts on INFINITI Q45 models
  • Eliminates belt slippage and squealing noises
  • Prevents accessory drive system failures due to belt degradation
  • Restores proper tension and power transmission to engine components
  • Addresses premature belt wear caused by heat and environmental exposure

Installation Notes and Tips

  • Ensure correct routing of the belt according to the vehicle’s belt diagram
  • Inspect pulleys and tensioners for wear before installation
  • Use proper tensioning tools to achieve manufacturer-recommended belt tension
  • Verify belt alignment to prevent premature wear
  • Replace the belt promptly if signs of cracking, glazing, or fraying are present

Quality Assurance and Warranty

The Gates Premium OE Micro-V Belt K040506 is manufactured to meet stringent quality standards and OE specifications. The use of EPDM and polyester materials ensures durability and resistance to common belt failure modes. This part carries an OE comparison rating, indicating it meets or exceeds original equipment performance requirements. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer.

BrandGates
Part NumberK040506
PositionPremium OE Micro-V Belt, Fan and Power Steering
Belt MaterialEPDM
Cord MaterialPolyester
Cord MaterialPolyester
Cross Section DesignationK
Effective Length50.606
Effective Length1285
OE Comparison RatingOE Performance
Outside Circumference51.125
Outside Circumference1299
Rib Quantity4
SectionK
Top Width.56
Top Width14
TypeAutomotive V-Ribbed Belt (Standard)
TypeAutomotive V-Ribbed Belt (Standard)
Washer Pump IncludedEPDM

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1996INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1995INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1994INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1993INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1992INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1991INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt
1990INFINITIQ454.5LV8GASFan and Power SteeringW/4-Ribbed Belt; Premium OE Micro-V Belt

* 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:

1195060U021195060U0414-0612-2141-1458146-04128525-04050640405054K12854K5054K5064PK12854PK12884PVK128550405065040506DR505K4505K4MK506K4A-506K4JK4-513K040506PK040506

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