Gates T42035 Engine Timing Belt Idler Pulley - Upper

Gates T42035 Timing Belt Idler Pulley

The Gates T42035 is a plastic timing belt idler pulley for engine valve train service. It uses a smooth backside contact surface and is built for upper timing belt routing on select Ford and Mercury applications, including Contour, Escort, Cougar, and Mystique models.

Key Features

• Plastic idler pulley construction
• Smooth, backside contact surface
• Upper timing belt pulley position
• Inside diameter: 10.4
• Outside diameter: 70
• Width: 29
• No flanged end
• Contents: pulley

Product Details

Gates PowerGrip Idler Pulleys are offered as fixed idlers or as replacements for tensioner bracket applications, depending on the engine setup. The T42035 follows that product line approach with a smooth-surface design for backside belt contact, making it a direct-fit timing belt idler pulley for the listed Ford Contour, Ford Escort, Mercury Cougar, and Mercury Mystique applications. This part cross-references GMB 425-9400 for the same application.

Vehicle Fitment

• Fits 1999 Ford Contour, Upper, Mar. 28, 1999 & Older; Timing Belt Pulley
• Fits 1999 Ford Escort, Upper, Feb. 9, 1999 & Older; Interference engine application; Timing Belt Pulley
• Fits 1999 Mercury Cougar, Upper, Mar. 28, 1999 & Older; Timing Belt Pulley
• Fits 1999 Mercury Mystique, Upper, Mar. 28, 1999 & Older; Timing Belt Pulley
• Fits 1998 Ford Contour, Upper; Timing Belt Pulley
• Fits 1998 Ford Escort, Upper; Compatible with interference engines.; Timing Belt Pulley
• Fits 1998 Mercury Mystique, Upper; Timing Belt Pulley

Common Replacement Reasons

• Worn or noisy timing belt idler pulley
• Belt tracking issues at the upper timing path
• Replacement during timing belt service on Ford Contour or Ford Escort engines
• Service for Mercury Cougar or Mercury Mystique timing drive maintenance
• Restoring proper belt routing on interference-engine applications

Installation Notes

Verify the upper pulley location and engine build date before ordering, especially for 1999 Ford Contour and 1999 Ford Escort applications with date-specific notes. Inspect the timing belt, tensioner, and related pulleys during service, and confirm the pulley dimensions match the original part before installation.

Quality Assurance

Gates PowerGrip components are part of a timing drive product line used for belt routing and engine service applications. The T42035 is built to match the listed fitment and dimensional specifications for the specified Ford and Mercury vehicles.