Roadmax 6K1203AP Serpentine Belt - Fan, Alternator or Power Steering and Air Conditioning

Overview

Roadmax 6K1203AP is a standard automotive V-ribbed serpentine belt for accessory drive systems that use a 6-rib layout. It is built with EPDM and polyester cord construction for buyers who want a quality replacement without stepping up to a premium-duty belt.

Compatible with Chevrolet and GMC trucks and SUVs in multiple accessory-drive configurations, including applications for the Chevrolet C1500, K1500, Tahoe, and GMC Yukon. Part number 6K1203AP is also referenced by common interchange numbers used for the same application.

Key Features

• EPDM belt material for heat and wear resistance in accessory drive service
• Polyester cord reinforcement for stable belt construction
• 6-rib cross section for multi-groove pulley systems
• Standard automotive V-ribbed belt design
• Effective length of 120.28 in. and outside circumference of 120.845 in.

Detailed Description

Roadmax 6K1203AP is a serpentine belt engineered for accessory drive systems that power components such as the alternator, power steering, air conditioning, and fan drive on listed Chevrolet and GMC applications. The belt uses EPDM rubber and polyester cord reinforcement, with a K cross section and 6 ribs to match the pulley geometry specified for the vehicle fitments. This part number, 6K1203AP, is listed for a wide range of Chevrolet C/K trucks, Suburban and Tahoe applications, plus GMC C/K trucks, Suburban models, and Yukon coverage where dual alternators or related accessory-drive configurations are specified.

This part cross-references Gates (e.g., K061203, K061203HD) for the same application.

What It Is Used For

• Replacing a worn serpentine belt with cracking, glazing, or rib wear
• Restoring accessory drive operation when belt slip is present
• Addressing squeal caused by belt deterioration or loss of tension
• Supporting proper drive of alternator, power steering, A/C, and fan accessories
• Matching listed Chevrolet and GMC accessory-drive configurations

Installation Notes

Verify the vehicle’s accessory-drive layout before ordering, since the listed fitments include dual-alternator and single-alternator configurations. Confirm pulley count, belt routing, and the required effective length against the existing belt or service information. Fitment includes Chevrolet C1500, K1500, Tahoe, and GMC Yukon applications, along with additional Chevrolet and GMC C/K truck and Suburban models shown in the fitment table.

Quality Assurance

Roadmax positions this belt as a standard replacement option for budget-conscious buyers who still want dependable construction. The EPDM compound and polyester cord materials support consistent service in everyday accessory-drive use.