Part No. 2001's

2001 ON-LINE COOLING SYSTEM CLEANER (200164, 200105, 200155)

Penray 2001 On-Line Cooling System Cleaner cleans diesel engine cooling systems while they remain in service. This liquid product is an excellent alternative to in-shop cleaning for engines having only light scale and limited corrosion product formation. 2001 Cleaner is ideal for periodic on-the-road cleaning, as it removes harmful mineral scale and oxide deposits.

  • Cleans diesel engine cooling systems while remaining in service
  • Add to cooling system every 20,000 miles before drain and fill
  • Can also be used as a 20-minute flush
  • Removes scale, corrosion, mineral and oxide deposits
  • Cost effective, time-saving alternative to off-line cleaning
  • Safe for seals and metals
  • Safe for use with all coolant formulations One half gallon of 2001 Cleaner treats eight gallons.
Part # Quantity Net Contents Container
200164 6 / Case 1/2 Gallon Jug
200105 1 5 Gallons Pail
200155 1 55 Gallons Drum

This product can expose you to chemicals including Ethylene Oxide, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to