Cloyes B257 Engine Timing Belt - Camshaft

Overview of Cloyes Engine Timing Belt B257

The Cloyes B257 engine timing belt is designed specifically for select Lexus and Toyota models, including the Avalon, Camry, ES300, ES330, Highlander, RX300, RX330, RX400h, Sienna, and Solara. Constructed from durable rubber with a circular profile, this timing belt ensures precise engine timing and reliable performance.

• Material: High-quality rubber for durability and flexibility
• Profile Type: Circular for smooth engagement with pulleys
• Color: Black
• Width: 1.260 inches
• Tooth Quantity: 211 teeth for accurate timing
• Chain Pitch: 5/16 inch
• Overall Length: 67.250 inches
• Timing Mark Quantity: Yes, for precise installation
• Specific fitment for Lexus and Toyota models

Detailed Product Description

The Cloyes B257 timing belt is engineered to meet the exact specifications required by various Lexus and Toyota engines. Its rubber construction provides the necessary flexibility and strength to withstand engine stresses and temperature variations. The circular profile and 211 teeth ensure consistent engagement with the camshaft and crankshaft sprockets, maintaining accurate valve timing. The belt’s width of 1.260 inches and overall length of 67.250 inches are tailored to fit specific engine configurations, making it a direct replacement for the original equipment. Additionally, the inclusion of timing marks facilitates correct alignment during installation, reducing the risk of engine timing errors.

Compatible Vehicles and Applications

• Designed for Lexus models: RX300, RX330, RX400h, ES300, ES330
• Compatible with Toyota models: Avalon, Camry, Highlander, Sienna, Solara
• Used in engine valve train systems to synchronize camshaft and crankshaft rotation
• Essential for maintaining engine performance and preventing timing-related failures

Installation Notes and Tips

• Ensure engine is cool before beginning installation
• Use timing marks on the belt and engine components to align properly
• Inspect pulleys and tensioners for wear and replace if necessary
• Follow vehicle manufacturer torque specifications for tensioner bolts
• Replace the timing belt at recommended service intervals to avoid engine damage

Quality Assurance and Warranty

Cloyes timing belts are manufactured to meet OEM standards, ensuring reliable fit and function. The B257 part number is backed by Cloyes’ quality control processes to provide consistent performance. While specific warranty details may vary, Cloyes products typically come with a limited warranty against defects in material and workmanship. Always consult product documentation or your supplier for exact warranty terms.