Belts

K77729X001 - : Belt Reinforced for Infiniti Image

Belt Reinforced

Infiniti K77729X001
Convertible, lower.
Discontinued
88845F6621 - : Belt & Retractor for Infiniti Image

Belt & Retractor

Infiniti 88845F6621
Convertible.
Discontinued
888543H063 - : Lap Belt for Infiniti Image

Lap Belt

Infiniti 888543H063
Qx45. Second row. 1999-01. center beige.
Discontinued
87829JJ50A - : Belt Guide for Infiniti Image

Belt Guide

Infiniti 87829JJ50A
Convertible.
Discontinued

No results found for "belt, serpentine belt, timing belt". Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!


Transfer Power Between Systems With INFINITI Belts

Engine belts transfer rotational power between the engine and accessory systems. They operate continuously while the vehicle is running and experience heat, tension, and movement during normal operation. At Douglas INFINITI, belt condition is commonly reviewed during scheduled maintenance. Proper belt function supports connected vehicle systems.

How INFINITI Belts Operate

Belts drive components such as alternators, air conditioning compressors, and other engine accessories. Each belt is designed around specific engine layouts, routing paths, and tension requirements. INFINITI models such as the Q50 and QX60 use belts engineered for their individual powertrains.

Why Engine Belts Wear Over Time

Constant movement and exposure to engine temperatures gradually affect belt materials. Cracks, fraying, glazing, and stretching can develop as belts age. Fluid contamination and environmental exposure may also contribute to deterioration.

OEM INFINITI Belt Specifications

Genuine INFINITI belts are designed to meet factory specifications for size, routing, and material requirements. Lower-priced aftermarket belts may vary in construction or fit. Proper belt installation supports related components like pulleys and brackets. Douglas INFINITI offers OEM belts designed for original vehicle compatibility.