Sierra Serpentine Belt 18-15102 for Mercruiser MX 6.2L MPI 2002-04 with Power Steering

This Sierra serpentine belt, part number 18-15102, is a replacement drive belt built for Mercruiser MX 6.2L MPI and MX 6.2L MPI Horizon engines equipped with power steering. It is engineered to OEM-quality standards for correct fit, form, and function, so it installs and runs the same as the original belt it replaces. The belt is constructed with high quality polychloroprene rubber reinforced with polyester fiber tensile members, giving it oil resistance and temperature stability for consistent performance in a marine engine bay. It drives accessory components such as the power steering pump, alternator, and water pump from the crankshaft pulley, and a worn or cracked serpentine belt can lead to slipping, noise, loss of power steering assist, or reduced charging and cooling system performance. This belt fits Mercruiser MX 6.2L MPI engines built 2002-04 with serial number OM600000 and up, and Mercruiser MX 6.2L MPI Horizon engines built 2002-04 with serial number OM600000 and up. It corresponds to Mercruiser part number 57-863876 and is intended for engines fitted with power steering.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-15102
• Product Type: Serpentine Belt
• Material: Polychloroprene rubber with polyester fiber tensile members
• Weight: 0.6 pounds
• UPC: 808282145361
• Country of Origin: United States
• Fitment: Mercruiser MX 6.2L MPI and MX 6.2L MPI Horizon, 2002-04, serial OM600000 and up, engines with power steering

Fitment

• Mercruiser MX 6.2L MPI, 2002-04, serial number OM600000 and up
• Mercruiser MX 6.2L MPI Horizon, 2002-04, serial number OM600000 and up
• For engines with power steering

Replaces (OEM)

• 57-863876

Frequently Asked Questions

What engines does the Sierra 18-15102 serpentine belt fit? The 18-15102 belt fits Mercruiser MX 6.2L MPI engines built 2002-04 with serial number OM600000 and up, and Mercruiser MX 6.2L MPI Horizon engines built 2002-04 with serial number OM600000 and up.

Does this belt work on engines without power steering? No, the Sierra 18-15102 serpentine belt is intended for MX 6.2L MPI and MPI Horizon engines that are equipped with power steering.

What is the OEM equivalent to Sierra part 18-15102? Sierra 18-15102 corresponds to Mercruiser part number 57-863876.

What material is the 18-15102 serpentine belt made from? It is constructed from polychloroprene rubber reinforced with polyester fiber tensile members, giving it oil resistance and temperature stability.

How much does the 18-15102 serpentine belt weigh? The Sierra 18-15102 serpentine belt weighs 0.6 pounds.

How do I know if my serpentine belt needs replacement? Signs that the 18-15102 belt or a similar serpentine belt needs replacement include visible cracking, glazing, fraying edges, slipping noise, loss of power steering assist, or a squealing sound on startup.

Is the Sierra 18-15102 an OEM part or aftermarket? The 18-15102 is a Sierra aftermarket serpentine belt designed to OEM-quality standards for correct fit, form, and function as a replacement for Mercruiser part 57-863876.

What does this belt drive on the engine? On the Mercruiser MX 6.2L MPI and MPI Horizon engines it fits, the 18-15102 serpentine belt drives accessory components including the power steering pump from the crankshaft pulley.

What serial number range applies to my engine for this belt? The 18-15102 belt applies to MX 6.2L MPI and MPI Horizon engines built 2002-04 with serial number OM600000 and up; engines outside that serial range may require a different Sierra part number.

What country is the 18-15102 serpentine belt made in? The Sierra 18-15102 serpentine belt is made in the United States.