Gates K040388 Serpentine Belt

Gates K040388 Premium OE Micro-V Belt

The Gates K040388 is a Premium OE Micro-V serpentine belt built for accessory drive applications that demand accurate fit and stable operation. It uses OE-matched construction and materials to support consistent performance on import and domestic vehicles.

Gates Premium OE Micro-V belts are engineered to match original equipment size, construction, and material specifications. That makes this belt a direct replacement choice for service work on vehicles such as the Mitsubishi Outlander, Cadillac CTS, Chrysler Sebring, Dodge Stratus, Mitsubishi Montero Sport, and Nissan Maxima.

Key Features

• Part number: K040388
• Premium OE Micro-V belt for accessory drive systems
• 4-rib automotive V-ribbed belt design
• EPDM belt material for durable everyday service
• Polyester cord material for strength and dimensional stability
• OE Performance rating for original-equipment-style replacement
• Effective length: 38.78 in. (985 mm)
• Outside circumference: 39.375 in. (999 mm)
• Top width: 0.56 in. (14 mm)

Product Details

This Gates serpentine belt is built in a K-section profile with a 4-rib layout to match the accessory drive requirements listed for the application. The EPDM construction helps the belt maintain its shape and service characteristics under heat and load, while the polyester cord supports consistent tension and fit. If you are replacing a worn belt on a 2007-2008 Mitsubishi Outlander power steering system or a 2004-2007 Cadillac CTS air conditioning drive, K040388 provides an OE-style service part with the correct dimensions for the listed applications.

This part cross-references Continental 4K985 and Dayco 5040388 for the same application.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or fraying on the existing belt
• Loss of proper drive to power steering, air conditioning, fan, alternator, or water pump systems
• Belt stretch or incorrect tension caused by age and heat exposure
• Noise or inconsistent operation from a deteriorated serpentine belt

Installation Notes and Tips

• Verify belt routing against the vehicle’s underhood diagram before installation.
• Inspect pulleys, tensioners, and idlers for wear before installing the new belt.
• Confirm the application by year, make, model, and driven accessory position.
• For listed applications, this belt is used on 2007-2008 Mitsubishi Outlander, Power Steering; 2004-2007 Cadillac CTS, Air Conditioning; 2001-2006 Chrysler Sebring, Power Steering; 2001-2006 Dodge Stratus, Power Steering; 1997-1999 Mitsubishi Montero Sport, Fan and Alternator; and 1992-1994 Nissan Maxima, Power Steering and Water Pump.

Quality Assurance

Gates builds this Premium OE Micro-V belt to OE size, construction, and material standards for dependable replacement service. It is specified as an OE Performance part for the listed applications, including Mitsubishi Outlander, Cadillac CTS, Chrysler Sebring, Dodge Stratus, Mitsubishi Montero Sport, and Nissan Maxima fitments.