Gates 7350 XL V-Belt — High-Capacity Notched Engine Drive Belt, Heat & Oil Resistant

This XL-series replacement V-belt from Gates is built for heavy-duty accessory drives where thermal expansion and vibration can cause ordinary belts to slip or make noise. Its notched design and fiber-loaded rubber compound let the belt flex and seat into pulleys as temperatures rise, improving contact and reducing the chance of slippage. The belt combines form-ground dimensional precision with thermally-active tensile cords to help deliver consistent tension and long service life when installed and maintained correctly.

How does the notched design improve performance under heat?

The notches allow the belt body to compress and expand across the pulley face as engine compartment temperatures change, so the belt tightens slightly when hot instead of loosening. This thermal responsiveness reduces micro-slippage, lowers noise, and keeps accessories turning smoothly over a wide temperature range.

• Variable notches that accommodate radial and tangential deflection
• Thermally-active cords that adjust tension when heated
• Reduced belt slip and quieter operation in warm conditions

What materials and construction ensure long service life?

Gates uses a fiber-loaded rubber compound for flexibility and lateral stability, combined with form-ground top width and sidewalls for accurate pulley fit. The tensile cords react to heat rather than stretch permanently, cutting down maintenance and helping the belt retain correct tension when installed correctly.

• Fiber-reinforced rubber stock for flexibility and stability
• Form-ground dimensions for precise pulley seating
• Tensile cords designed for thermal responsiveness, not permanent stretch

Which environments and exposures does this belt resist?

This Gates belt is formulated to withstand common under-hood hazards: oil contamination, elevated temperatures, ozone, and general weathering. That resistance slows aging and cracking, extending usable life compared with non-specialized belts.

• Oil- and heat-resistant compounds for engine bay exposure
• Ozone and weather aging protection for longer durability
• Meets or exceeds SAE J636C standards for quality and safety

How do I know this belt will fit and perform in my vehicle drive system?

The Gates 7350 XL is produced to tight dimensional tolerances—form-ground top width and sidewall control ensures correct fit in compatible pulleys. For best results, verify part number and belt section against the vehicle manufacturer’s specifications and ensure proper tensioning at installation.

• Form-ground profile for accurate pulley engagement
• Designed to match SAE J636C sizing where applicable
• Proper installation and tensioning are required for maintenance-free performance

Who is this for? The Gates 7350 XL is aimed at professional technicians, fleet maintenance teams, and DIY mechanics who need a dependable replacement V-belt for high-demand accessory drives. It’s particularly suited to applications that face repeated thermal cycling, exposure to oil and ozone, or where quieter operation and extended belt life are priorities. Choose this belt when you require a heavy-duty, precisely made replacement that conforms to SAE standards and is engineered to reduce slippage and noise over its service life.