30W if above 40 deg. F, otherwise 10W30 will do the job: http://www.briggsandstratton.com/us/en/support/maintenance-how-to/push-mower-engines/how-to-change-oil
The liner height for the ISX 475 Cummins engine is typically around 6.43 inches (163.5 mm). However, it’s essential to refer to the specific service manual or technical documentation for your engine model, as variations might exist based on engine configuration and production year. For precise measurements and specifications, consulting the manufacturer's guidelines is recommended.
The real question would be WHICH 475 Cat motor? 475 is just a horsepower rating - The C13 and C15 were both available at that horsepower rating.
ASSUMING ITS A 305 ITS ABOUT 475 LBS WITH ACCESORIES
It may not be your throttle cable it might be that your governor is stuck.
76% of 475= 76% * 475= 0.76 * 475= 361
40% of 475= 40% * 475= 0.4 * 475= 190
25% of 475= 25% * 475= 0.25 * 475= 118.75
10% of 475= 10% * 475= 0.1 * 475= $47.50
88% of 475 = 88% * 475 = 0.88 * 475 = 418
475.
475 is composite.
The number .475 repeated as a fraction would be 475/999.