ContiTech 4040374S Poly-V Stretch Belt 4-Rib Serpentine Drive Belt

The ContiTech 4040374S is a Poly-V stretch belt engineered for precise, tensioner-free installation on accessory drive systems. As part of ContiTech's trusted Poly-V belt lineup, this stretch-fit design eliminates the need for a traditional belt tensioner by utilizing a high-elasticity construction that maintains consistent tension throughout its service life.

Key Features:

• Stretch-fit design — installs without a tensioner, reducing system complexity and weight
• 4-rib (PK) profile for efficient power transmission and reduced slippage
• High-performance EPDM compound resists heat, ozone, and cracking for extended service life
• Precision cord construction maintains dimensional stability under load and temperature cycling
• OEM-quality fitment meets or exceeds original equipment specifications
• Low-noise operation due to ContiTech's optimized rib geometry

ContiTech, a division of Continental AG, is a world-leading manufacturer of belt drive systems trusted by OEM and aftermarket applications alike. The 4040374S stretch belt is a direct-fit replacement that restores proper accessory drive function with no special tools beyond a stretch-belt installation tool.