Gates K040438 Serpentine Belt - Air Conditioning or Power Steering

Gates K040438 Premium OE Micro-V Belt

The Gates K040438 is a Premium OE Micro-V serpentine belt built for accessory drive applications that demand accurate sizing and consistent belt tracking. It uses OE-matched construction and materials to support dependable operation in import and domestic vehicles, including air conditioning and power steering drives.

Key Features

• Premium OE Micro-V belt from Gates
• Part number: K040438
• 4-rib automotive V-ribbed belt, standard section K
• Effective length: 43.84 in. (1114 mm)
• Outside circumference: 44.375 in. (1128 mm)
• Top width: 0.56 in. (14 mm)
• EPDM belt material with polyester cord reinforcement
• OE performance rating for factory-style fit and operation

Product Details

Gates Premium OE Micro-V belts are engineered to match OE size, construction, and material specifications for a precise fit in the accessory drive system. The EPDM belt compound helps maintain consistent performance in everyday driving conditions, while the polyester cord material supports belt stability and load handling. This K040438 belt is used in applications such as Porsche Panamera air conditioning, Porsche Macan air conditioning, Chevrolet Caprice air conditioning, Chevrolet SS air conditioning, Honda Odyssey power steering, Honda Pilot power steering, Acura TL power steering, Acura MDX power steering, Toyota Tacoma power steering, and Toyota 4Runner power steering. This part cross-references Dayco 5040437 for the same application.

What It Helps Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or visible belt wear
• Loss of accessory drive performance
• Improper belt tracking caused by incorrect sizing
• Reduced steering assist or air conditioning drive function when the belt is worn

Installation Notes and Tips

Verify belt routing and confirm the accessory drive layout before installation. Check pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. Confirm the required application by year, make, model, and position before ordering; this belt is listed for air conditioning and power steering positions across multiple vehicles, including 1999-2004 Honda Odyssey, 1999-2004 Toyota Tacoma, and 2017-2021 Porsche Panamera.

Quality Assurance

Gates manufactures this Premium OE Micro-V belt to OE performance standards, with dimensions and materials selected to match factory-style service requirements. Part number K040438 is backed by Gates' OE-focused belt design approach for consistent fitment and operation.