Dayco 89355 No Slack Automatic Accessory Drive Belt Tensioner Assembly

The Dayco 89355 is a No Slack Automatic Belt Tensioner Assembly engineered to maintain consistent accessory drive belt tension throughout the life of the belt. Designed as a direct OE replacement, it eliminates common accessory drive problems including belt squeal, improper tracking, and accessory performance loss caused by inadequate tension.

Key Features:

• Patented Flat Spring Technology — Increases torque transmitted to the belt when needed, automatically compensating for belt stretch and wear to maintain constant tension
• Rust-Resistant Flat Spring Coating — Protects the internal spring from corrosion for extended service life
• Heavy-Duty Cast Aluminum Spring Case — Resists cracking under thermal cycling and mechanical stress
• Heavy-Duty Cast Aluminum Arm — Provides additional structural strength and minimizes distortion under load
• Steel Locator Pins and Arm Plates — Ensure precise positioning and long-term durability
• OE Replacement Fit — Engineered to outperform and outlast the original equipment tensioner
• Sold individually

Cross-Reference Part Numbers: Gates 38226, Gates 38352, ACDelco 38226, CARQUEST 38226, NAPA 38226, Duralast 305355, Goodyear 49313, Continental Elite 49313, Continental Elite 49364, Saab 4898755, Saab 4356119, Saab 4671426

The Dayco 89355 is part of the trusted No Slack automatic tensioner line, built to resolve belt squeal, slippage, and accessory failures before they leave you stranded. A straightforward drop-in replacement that restores proper serpentine belt operation.