TIMING BELT NISSAN RB20-25 DOHC 141S8M25Part No. 141S8M25 Type TIMING BELT Brand MITSUBOSHI Unit of Measure EACH Description Mitsuboshi Timing Belt 141X25. 4mm Warranty One Year Number of Teeth 141 Width 25mm Thickness 25mm Timing Belts & Accessory Belts Every bloke knows timing is key when it comes to your crankshaft. Thats where having a quality timing belt is worth its weight in gold. Basically, a good one is pivotal in making sure your engine cools its jets and doesnt fire too early.