A-3L420K-AI Made With Aramid Blue V-Belt (3/8" X 42" )

One New Aftermarket Replacement Made With Aramid Blue V-Belt - 3L Section (3/8" x 42")

This 3L-section wrapped aramid V-belt is a heavy-duty drive belt built with aramid (Kevlar-type) cord construction for superior strength and durability. Unlike standard polyester-corded V-belts, aramid cord resists stretching under high stress and shock loads, maintains flexibility, and improves heat dissipation - making it an ideal replacement for lawn mowers, snow blowers, and other demanding outdoor power equipment applications. The distinctive blue color identifies this belt as an aramid-cord construction.

Specifications

• Part Number: A-3L420K-AI
• Belt Section: 3L (Fractional Horsepower / FHP)
• Type: 3L-Section Wrapped Aramid Cord Belt
• Top Width: 3/8"
• Outside Circumference (OC) Length: 42"
• Depth: 7/32"
• Material: Made With Aramid Cord
• Color: Blue

Compatible Applications

This is a universal 3L-section FHP V-belt sized 3/8" x 42". It is a direct dimensional replacement for any drive or deck belt system requiring a 3L420 or 3L420K specification belt, including lawn tractors, riding mowers, walk-behind mowers, snow blowers, and other lawn and garden or light industrial equipment. Match by section (3L), top width (3/8"), and outside length (42") to confirm fit.

Replaces Part Number(s):

3L420K, 3LK420, A-3L420K-AI

New aftermarket replacement part - not remanufactured, not used.