Gates K040382 Serpentine Belt

Gates Premium OE Micro-V Belt K040382

The Gates K040382 is a Premium OE Micro-V serpentine belt built for precise OE-style fit and consistent accessory drive performance. It uses advanced belt construction to match original equipment size, materials, and profile for a dependable replacement on a wide range of import and domestic vehicles.

Compatible With BMW 330e, BMW 530e, BMW X5, Mercedes-Benz AMG GT, and other applications listed below, this belt is a direct-fit option for accessory drive service. The Gates Premium OE Micro-V Belt line focuses on OE comparison performance and accurate rib geometry for proper belt tracking.

Key Features

• Part number: K040382
• Premium OE Micro-V Belt from Gates
• 4-rib automotive V-ribbed belt design
• EPDM belt material for durable everyday service
• Polyester cord construction for stable tension handling
• OE Performance comparison rating
• Effective length: 38.14 in. (969 mm)
• Outside circumference: 38.705 in. (983 mm)
• Top width: 0.56 in. (14 mm)

Product Details

Gates engineered this Micro-V belt to match OE size, construction, and materials so the accessory drive system can operate with the correct belt profile and rib engagement. The K040382 is used across applications such as BMW 330e and 530e models, BMW X5, and Mercedes-Benz AMG GT variants with air conditioning drive requirements, along with additional fitments including Chevrolet Spark, Kia Rio, and Dodge Caravan applications. This part cross-references Dayco 5040382 and Bando 4PK970 for the same application.

Common Problems This Belt Can Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or rib wear on the existing belt
• Accessory drive slip affecting alternator, A/C, or power steering operation
• Incorrect belt length or profile from a previous replacement
• Reduced belt tracking caused by age-related stretch or material breakdown

Installation Notes and Tips

Verify the belt routing and confirm the OE match by year, make, model, and accessory position before installation. Check pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. For fitment examples, this belt fits 2021-2024 BMW 330e, 2020-2023 BMW 530e, 2021-2023 BMW X5, and 2020-2021 Mercedes-Benz AMG GT 63, Air Conditioning.

Quality Assurance

Gates manufactures this belt to OE-style specifications for size, materials, and construction consistency. The Premium OE Micro-V Belt line is built for direct replacement service where accurate fit and reliable accessory drive operation matter.