New, Corrosion Resistant Water Pump Shaft Available
Usage:
All 3400 Series Truck Engines
Description of Change: A new water pump shaft is available for all 3400 Series Truck Engines. The new shaft is more resistant to corrosion than the former shaft.
Adaptable To: The new 7W1821 Water Pump Shaft is a direct replacement for the former 6N139 Water Pump Shaft in all applications.
Caterpillar Information System:
1985/08/01 New Format For Some Special Instructions
1985/08/01 New Service Tools Available
1985/08/01 Location Of 6V5135 Setscrews In Fuel Pump Group
1985/08/01 Tachometer Drive Is Now An Attachment
1985/07/01 Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/07/01 Special Instruction Available To Salvage Governor Housing
1985/07/01 Hardened Washers Used In Engine Oil Lines; Locks Removed From Oil Pump
1985/07/01 New Type Of Paint Used On Some Caterpillar Products; Do Not Weld On Painted Surfaces
1985/07/01 Engine Air Inlet Adapters
1985/07/01 Breather Element Added To PCV Valve
1985/07/01 Orifice Fitting Or Snubber Can Help Stop Erratic Fuel Gauge Operation
1985/07/01 Remanufactured Cylinder Head Group For Na Engines Must Not Be Installed On T Engines
1985/08/01 Thread Lock Now Used On Timing Advance Bolts
1985/08/01 Why Choose Caterpillar Remanufactured Crankshafts? Because We Offer More ...
1985/09/01 Use Correct Valves When Rebuilding Engines
1985/09/01 Inform Caterpillar Dealer Of Major Modifications To Caterpillar Engines And Change In Truck Owners
1985/09/01 New Air-to-air Aftercooler Arrangement Used On Truck Engines
1985/09/01 New Engine Pressure Group Available
1985/09/01 New Tools Available To Change Brakesaver Control Valve Diaphragm
1985/09/01 Check Fuel Injection Nozzles In Overheated Engines
1985/09/01 Steel Fuel Pump Lifter Used
1985/09/01 Maintenance Management
1985/09/01 New Caterpillar Truck Engine Air Filters (north America)
1985/09/01 List Of Service Publications