Roadmax 6K1120AP Serpentine Belt

Roadmax 6K1120AP Serpentine Belt Overview

The Roadmax 6K1120AP is a standard automotive V-ribbed serpentine belt built for everyday accessory drive service. It uses EPDM construction with polyester cord reinforcement to deliver a practical replacement option for vehicles that need reliable belt operation without premium-belt performance requirements.

This Roadmax Automotive V-Ribbed Belt (Standard) is a direct-fit style replacement for select Ford, Buick, Oldsmobile, and Pontiac applications. It is commonly searched as a serpentine belt for 1994 Ford E-350 Econoline, 1994 Ford F-250, and 1987-1988 Buick Skylark applications, along with related fitments listed below.

Key Features

• Part number: 6K1120AP
• Automotive V-Ribbed Belt (Standard) construction
• EPDM belt material for modern accessory drive systems
• Polyester cord material for reinforcement
• 6-rib design for multi-groove pulley engagement
• Top width: 20 mm (.807 in.)
• Effective length: 2845 mm (111.99 in.)
• Outside circumference: 2859 mm (112.56 in.)
• Cross section designation: K

Product Details

Roadmax positions this belt line for budget-conscious buyers who want a quality replacement belt without stepping up to a premium-duty option. The 6K1120AP follows standard V-ribbed belt dimensions and is sized for accessory drive systems that rely on a 6-rib serpentine layout. If you are replacing a worn belt on a 1994 Ford E-350 Econoline or a 1994 Ford F-350, this part number is one to verify against the original belt length and rib count before installation.

This part cross-references Gates K061120 and Dayco 5061120 for the same application.

What It Helps Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or rib wear on the belt surface
• Loss of accessory drive consistency at the alternator, power steering, or A/C drive
• Belt stretch that affects pulley tracking and tension
• Replacement needs on select 1987-1988 Buick Skylark, 1987 Oldsmobile Calais, 1988 Oldsmobile Cutlass Calais, and 1987 Pontiac Grand Am vehicles

Installation Notes

Verify rib count, belt length, and pulley routing against the original belt before installation. Confirm the vehicle configuration noted in the fitment data, including the 1994 Ford E-350 Econoline, 1994 Ford E-350 Econoline Club Wagon, 1994 Ford F-250, and 1994 Ford F-350 listings that specify W/O Ambulance Prep. Pkg., as well as the 1987-1988 Buick Skylark, 1988 Oldsmobile Cutlass Calais, 1987 Oldsmobile Calais, and 1987 Pontiac Grand Am listings that specify W/A.C.

After installation, inspect belt tracking and tension to confirm the belt seats correctly in each pulley groove.

Quality Assurance

Roadmax standard belt construction uses EPDM and polyester cord materials selected for routine accessory drive service. The product line is positioned as a practical replacement choice for drivers who need dependable fit and function in a standard serpentine belt application.