Gates K040346SF Serpentine Belt - Air Conditioning

Gates Stretch Fit Belt for OE Applications

The Gates Premium OE Stretch Fit Micro-V Belt is built for vehicles that use a stretch-fit accessory drive system and require precise belt sizing. This K040346SF serpentine belt is a 4-rib, EPDM construction with nylon cord reinforcement for consistent fit and dependable operation on the air conditioning drive.

Compatible With 2013-2020 Ford Fusion, Air Conditioning; 2013-2020 Lincoln MKZ, Air Conditioning; and other listed Ford and Lincoln applications, this belt is a direct-fit option for stretch-fit accessory drive service. The Gates Premium OE Stretch Fit Micro-V Belt line is focused on OE-style coverage for vehicles that use self-tensioning belt designs.

Key Features

• Part number: K040346SF
• Premium OE Stretch Fit Micro-V Belt for stretch-fit drive systems
• 4-rib automotive V-ribbed belt construction
• EPDM belt material for durability in accessory drive service
• Nylon cord reinforcement for stable belt structure
• Top width: 0.56 in. / 14 mm
• Effective length: 34.67 in. / 881 mm
• Outside circumference: 35.25 in. / 895 mm
• OE Exact and OE Performance comparison ratings
• Special installation tool required

Product Details

Gates K040346SF is a stretch-fit serpentine belt engineered for vehicles that do not use a conventional adjustable tensioner on the accessory drive. Its self-tensioning design helps the belt seat correctly on the pulley system when installed with the proper tool. This makes it a practical replacement for air conditioning drive service on select Ford Fusion, Lincoln MKZ, Ford Explorer, Ford Edge, Ford Taurus, and Lincoln MKT applications listed in the fitment data.

This part cross-references Continental 4040361S and Dayco E040350 for the same application. If you are searching for a Ford Fusion A/C belt, Lincoln MKZ stretch fit belt, or a Gates K040346SF replacement for OE-style service, this part matches the listed vehicle coverage and dimensions.

Common Problems This Belt Can Address

• Cracked or worn accessory drive belt material
• Squealing or slipping belt noise on the air conditioning drive
• Loss of proper belt tension on a stretch-fit system
• Visible glazing, fraying, or belt surface wear
• Service replacement for a belt that no longer maintains correct fit

Installation Notes and Tips

• Special installation tool required for proper fitment.
• Follow the included Sheet A instructions during installation.
• Verify the vehicle’s exact year, make, model, and air conditioning application before ordering.
• Stretch-fit belts are installed differently than standard serpentine belts and should not be forced over pulleys.
• Confirm pulley condition and alignment before installing the new belt.

Quality Assurance

Gates manufactures this belt as part of its Premium OE Stretch Fit Micro-V Belt line, using OE-focused construction and coverage for stretch-fit drive systems. The K040346SF is built to meet the dimensional and application requirements listed for the specified Ford and Lincoln vehicles.