Gates K030350 Serpentine Belt - Air Pump

Gates Premium OE Micro-V Belt K030350

The Gates K030350 is a Premium OE Micro-V serpentine belt built for accessory drive applications that demand accurate fit and stable operation. It uses OE-matched size, construction, and materials to support consistent belt tracking on the vehicles listed below.

Key Features

• Premium OE Micro-V belt from Gates
• Part number: K030350
• 3-rib automotive V-ribbed belt, standard section K
• EPDM belt material for durability in accessory drive service
• Polyester cord construction for strength and dimensional stability
• OE Performance comparison rating
• Effective length: 35.1 in. (892 mm)
• Outside circumference: 35.67 in. (906 mm)
• Top width: 0.42 in. (11 mm)

Product Details

Gates Premium OE Micro-V belts are built for import and domestic cars and trucks where correct belt dimensions matter. This K030350 serpentine belt follows OE-style construction to help maintain proper accessory drive function on applications such as the Buick Regal, Chevrolet Lumina, and Pontiac Grand Prix. If you are replacing a worn air pump belt on a 1988-1993 GM vehicle, K030350 provides the specified belt profile and length for the listed fitments.

This part cross-references Dayco 5030350 for the same application.

What This Belt Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or fraying on the existing serpentine belt
• Incorrect belt length or rib profile on air pump applications
• Loss of accessory drive consistency caused by belt wear
• Fitment issues on 1988-1993 Buick Regal, Chevrolet Lumina, and Pontiac Grand Prix applications

Installation Notes and Fitment

Compatible With 1991-1993 Buick Regal, air pump; 1993 Chevrolet Corsica, air pump; 1993 Chevrolet Lumina, air pump; 1993 Oldsmobile Cutlass, air pump; 1991 Oldsmobile Cutlass, air pump; 1993 Oldsmobile Cutlass Supreme, air pump; 1991 Oldsmobile Cutlass Supreme, air pump; 1993 Pontiac Grand Prix, air pump; 1990 Chevrolet Lumina, air pump; 1989 Buick Regal, air pump; 1988-1989 Oldsmobile Cutlass, air pump; 1988-1989 Oldsmobile Cutlass Supreme, air pump; 1988-1989 Pontiac Grand Prix, air pump; 1988 Chevrolet Celebrity, air pump; 1988 Pontiac 6000, air pump; and 1988 Pontiac Tempest, air pump.

Before installation, verify the belt routing, rib count, and application notes for your vehicle. Confirm the air pump position and emission-system configuration where listed, since fitment varies by year and model. Gates K030350 is specified for the applications shown and should be matched to the existing belt path and OE dimensions.

Quality Assurance

Gates manufactures this Premium OE Micro-V Belt to OE-size, OE-construction, and OE-material standards for the listed applications. The EPDM belt compound and polyester cord support consistent service in accessory drive systems.