Fan Belt Alternator Lancer 2004-12 5PK 865 – MYTEC

The “Fan Belt Alternator Lancer 2004-12 5PK 865 – MYTEC” specifies a crucial accessory drive belt designed for Mitsubishi Lancer models produced between 2004 and 2012. Here’s a breakdown of what each part of the description means:

• Fan Belt / Alternator Belt: This refers to the same component, also commonly called a serpentine belt or V-ribbed belt. Its primary function is to transfer power from the engine’s crankshaft to various accessory components, specifically the alternator in this case. The alternator is responsible for generating electrical power to run the car’s electrical systems and recharge the battery. Depending on the vehicle’s configuration, this single belt might also drive other accessories like the power steering pump, water pump, and air conditioning compressor.

• Lancer 2004-12: This indicates the specific vehicle make, model, and the range of production years it is designed for. This particular belt is compatible with Mitsubishi Lancer sedans and perhaps some wagon variants from the 2004 to 2012 model years. It’s important to note that different engine sizes or specific accessory configurations within these years might require slightly different belt lengths or numbers of ribs.

• 5PK 865: This is the standard designation for a V-ribbed belt’s specifications:

  • 5PK: “5” indicates the number of ribs (or grooves) on the belt. This number must match the number of grooves on the pulleys it runs on to ensure proper fit and power transfer. “PK” refers to the profile of the ribs, a standard cross-section for automotive serpentine belts.
  • 865: This number denotes the effective length of the belt in millimeters (mm). So, 865 mm.

• MYTEC: This specifies the brand of the fan belt. MYTEC is an aftermarket automotive parts manufacturer that produces various components, including belts. When choosing an aftermarket brand like MYTEC, it’s generally understood that they aim to provide quality and performance comparable to OEM (Original Equipment Manufacturer) parts, but at a more competitive price point.

Importance: The alternator belt is vital for the operation of the Lancer. If this belt breaks or becomes too loose, the alternator will stop charging the battery, leading to a dead battery and the vehicle eventually stopping. Other accessories driven by the same belt (if applicable to this specific Lancer setup) would also cease to function, such as power steering assist or air conditioning.

Maintenance: Over time, fan belts can stretch, crack, fray, or become glazed. Symptoms of a worn or failing belt include:

• Squealing or chirping noises (especially during cold starts or when turning the steering wheel)
• Visible cracks, glazing, or missing chunks on the belt
• Loss of power steering (if applicable)
• Battery light illuminating on the dashboard (indicating alternator not charging)
• Overheating engine (if the water pump is driven by this belt)

Regular inspection and timely replacement of the fan belt are crucial preventive maintenance steps to ensure the reliable operation of your Mitsubishi Lancer 2004-2012, especially given the current date of June 20, 2025, meaning these vehicles are quite old and their original belts would have long since worn out.