The timing belt on a high-revving, turbocharged RB-series engine operates under significantly higher loads than a standard factory unit was designed to handle. Aggressive camshafts, stiffer valve springs, elevated temperatures, and increased torque all place additional stress on the belt. The Tomei Kevlar Timing Belt (part number TB101A-NS05A) is engineered specifically for these conditions on the Nissan RB26DETT, RB25DET, and RB20DET platforms.
Constructed with an Aramid (Kevlar) fiber surface, heat-resistant H-NB rubber, and a high-tensile glass cable core, this belt offers greater tensile strength and improved resistance to stretch and heat degradation compared with conventional OEM-style belts. The reinforced construction helps maintain accurate cam timing under demanding conditions, reducing the risk of belt failure that can lead to serious engine damage. It is a direct replacement designed for performance-oriented RB engines where reliability at higher RPM and boost levels is a priority.
At Terra Firma Automotive, we supply this genuine Tomei Kevlar Timing Belt as a critical upgrade for Skyline and other RB-powered builds. Whether you are refreshing a street engine or preparing a higher-output turbo setup, this belt provides the strength and durability expected from Tomei’s Japanese engineering. Choose Terra Firma Automotive for authentic performance components that protect your RB engine investment.
- Genuine Tomei High-Performance Timing Belt
- Part Number: TB101A-NS05A
- Application: Nissan RB26DETT / RB25DET / RB20DET
- Aramid (Kevlar) fiber reinforced surface
- Heat-resistant H-NB rubber construction
- High-tensile glass cable core
- Improved resistance to stretch and heat
- Designed for high-RPM and high-load use
- Helps maintain accurate cam timing under stress
- Direct replacement for factory timing belt
- Suitable for street and performance RB builds
- Reduces risk of belt failure on tuned engines
- Trusted Japanese performance component
- Available from Terra Firma Automotive
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