Continental 40257 Engine Timing Belt

Continental 40257 Timing Belt for Toyota and Lexus

Continental 40257 is an engine timing belt built for precise valve train synchronization in select Toyota and Lexus applications. It uses EPDM material, timing marks, and precision-molded teeth to maintain accurate contact with cogged components across long service intervals.

Key Features

• EPDM construction for resistance to heat, abrasion, and ozone exposure
• Precision-molded teeth for consistent engagement with sprockets and pulleys
• Timing marks for easier alignment during service
• HTD 9.525 M tooth profile
• 211 belt teeth, 1.250 in. top width, 66.500 in. length
• Direct replacement timing belt for select Toyota Highlander, Camry, Sienna, Avalon, Solara, and Lexus ES/RX applications

Detailed Description

This Continental timing belt is engineered for engines that depend on accurate camshaft and crankshaft timing. The EPDM belt material is formulated to resist shrinking and elongation, helping the belt maintain stable dimensions under heat and operating stress. The molded tooth design supports smooth tracking and reliable mesh with cogged components, while the timing marks simplify alignment during installation and service. Continental 40257 cross-references Gates T257 and Dayco 95257 for the same application.

Compatible With 2010 Toyota Highlander, 2001-2009 Toyota Highlander, 2006-2008 Lexus RX400h, 1999-2008 Toyota Solara, 2004-2006 Lexus ES330, 2004-2006 Lexus RX330, 1994-2006 Toyota Camry, 1998-2006 Toyota Sienna, 1995-2004 Toyota Avalon, 1994-2003 Lexus ES300, and 1999-2003 Lexus RX300. This part number, 40257, is commonly searched for Toyota Camry timing belt replacement and Lexus RX330 engine timing belt service.

What It Helps Address

• Timing belt wear from heat and age
• Loss of belt length stability from stretching or shrinkage
• Noise or irregular operation caused by poor tooth engagement
• Service alignment errors during timing belt replacement
• Scheduled maintenance on interference-engine applications

Installation Notes and Tips

Verify engine code and timing system layout before installation, especially on interference-engine applications. Align the timing marks carefully and inspect related components such as tensioners, idlers, and seals during service. Confirm belt length, tooth count, and tooth profile match the original specification before assembly. For Toyota Camry and Lexus RX applications, accurate timing alignment is critical to proper engine operation.

Quality Assurance

Continental designs this belt with premium polymers and molded tooth geometry to support consistent timing performance and long service life. The 40257 timing belt is built to meet the dimensional and material requirements expected for select Toyota and Lexus engine applications.