Gates T251RB Engine Timing Belt

Gates T251RB High Performance Timing Belt

The Gates T251RB is a high performance automotive timing belt built for engines that demand strong heat resistance and stable timing control. It uses HSN construction with fiberglass cord reinforcement and timing marks for accurate service work on select Nissan and INFINITI applications.

Key Features

• High performance automotive timing belt for engine valve train service
• HSN belt material for improved heat resistance in demanding engine environments
• Fiberglass cord material for strength and dimensional stability
• Modified Curvilinear (III) profile type
• Timing marks included for easier alignment during installation
• Blue belt color for quick visual identification
• 228 teeth with 8 mm pitch and 71.81 in pitch length

Product Details

Gates High Performance Automotive Timing Belt line is built for higher horsepower engines that place greater stress on the timing system. The T251RB uses an HSN elastomeric composite construction and fiberglass reinforcement to handle heat and maintain consistent tooth engagement. With a 32 mm top width, 8 mm pitch, and Modified Curvilinear (III) tooth profile, this belt is specified for precise valve timing in performance-focused engine builds and service replacements.

Fits 1994-1997 INFINITI J30, N/A. Fits 1994-1996 Nissan 300ZX, N/A. Fits 1993 INFINITI J30, N/A. Fits 1990-1993 Nissan 300ZX, N/A. This part cross-references Dayco 95251 and Bando TB251 for the same application.

Common Repair Uses

• Replacing a worn or age-hardened timing belt
• Restoring correct camshaft and crankshaft synchronization
• Addressing timing noise caused by belt wear or tooth deterioration
• Correcting service intervals on interference-engine applications
• Supporting timing system maintenance on Nissan 300ZX and INFINITI J30 models

Installation Notes

Verify engine code and timing component condition before installation. Use the timing marks to confirm alignment, and inspect related components such as tensioners, idlers, and seals during service. On 1990-1993 Nissan 300ZX applications, note the fitment remark that the cam tensioner hydraulic assembly is not included.

Quality Assurance

Gates manufactures this timing belt for high performance engine service using heat-resistant HSN materials and fiberglass cord reinforcement. The design is intended to maintain timing accuracy under demanding operating conditions.