4N3311 Radiator Cap Has Improved Sealing{1382}
Usage:
3400, 3500 Industrial, Marine, Generator Set Engines
Description of Change: The 4N3311 Radiator Cap on the above engines now has an improved vacuum relief seal. The new seal has more wear resistance and will give longer life under high temperatures.
The former vacuum seal could become hard or distort and allow a pressure leak. This could cause a loss of coolant.
Adaptable To: The improved 4N3311 Radiator Cap (part number did not change) is a direct replacement for the former 4N4311 Radiator Cap. The improved cap with the new seal is identified by a red dot on the seal.
Caterpillar Information System:
1987/11/02 Results Of High Speed And/Or Overspeeding Of 3406B Truck Engines{1105,1209,1210,1214}
1987/11/02 Four New Sizes Of Three-Jaw Pullers Available{0700,4050}
1987/11/02 Improved Duo-Cone Seal Installers Available{0600,7561}
1987/10/26 Microfiche For Replacement Engine Bills Of Material {0374,1000}
1987/10/19 Check Plastic Water Sleeve If Engine Experiences Severe Overheating{1380,1350}
1987/10/12 Piston And Camshaft Changes{1214,1210,1200}
1987/10/05 Replacement Thermostats Available For Jacket Water Heaters{1383}
1987/10/05 New Product Support Information Available For Electric Power Generation (EPG){4450,0374}
1987/10/05 Individual Parts Of Caterpillar Hydraulic Gear Pumps Are Available{5073}
1987/09/28 Engine Oil Coolers Have Rubber End Sheets In Place Of Brazed Sheets {1300,1378}
1987/09/28 New Special Instruction, "Using the PEEC Screen Map(s)" {0374}
1987/09/28 New Steel Fuel Injection Pump Lifters Should Not Be Mixed With Aluminum Lifters {1281,1250}
1987/11/09 New 1U6313 Adapter Available For Use With Nitrogen Tire Inflation Group{0600,0730}
1987/11/09 Parts Information For VR3 Automatic Voltage Regulators{4467}
1987/11/16 New Service Tools Available{0600}
1987/11/16 New Air Powered Scraper Available For Gasket Removal{0600}
1987/11/16 New 8C9705 12 Volt Converter Available To Power The 8T8697 Electronic Control Analyzer Programmer (ECAP){0600}
1987/11/16 New Water Temperature Regulator Helps Prevent Overcooling{1355}
1987/11/23 Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23 Orifice Reverse Flow Check Valve Used In Fuel Injection Pumps{1251,1254}
1987/11/23 Intake Valve Seals Used{1105,1300}
1987/11/23 Additional Parts Required For Installation Of C-336 Jacobs® Engine Brake{1119,1209,1210}
1987/11/23 Connections For Water Conditioner Lines Changed{1350}
1987/11/23 Ring Retainer And New O-Ring Seal Used In The BrakeSaver Engine Oil Lines Group{1159}