New Oil Cooler Bonnets Used On 3408 And 3412 Engines{1378,1354,1380}
Usage:
988B, 992C Loaders;
631D, 633D, 637D, 637D PP Tractors;
3408 Truck, Marine and Industrial Engines;
3412 Marine and Industrial Engines
Description of Change: New oil cooler bonnets are used on the 3408 and 3412 Engines in the applications shown above. The flange on the new oil cooler bonnets is .093" (2.36 mm) thicker than the flange on the former oil cooler bonnets. Because of the increased thickness of the flange, the spacer plate or block orifice and one of the two gaskets used with the former oil cooler bonnet is no longer needed.
Adaptable As: Direct replacement for the former parts as shown in the chart that follows. See the parts book for the water lines group or expansion tank group used on your engine.
Caterpillar Information System:
1979/04/23 Careful, Correct Installation And Maintenance Of Fuel Injection Lines Is Very Important To Prevent Possible Engine Damage, Fire And Other Problems{1252}
1979/04/23 Dampeners Added To Steering Brake Group To Prevent Noise From Vibration Of Brake Band Assembly{4110}
1979/04/23 New Retainer Used Between Bolt And Gear In The Torque Converter{3101}
1979/04/23 Two Bolts Have Been Added At The Junction Of The Converter And Retarder Housing To Prevent O-Ring Seal Damage{3109}
1979/04/16 Different Type Brake Lining In Steering Brake Group; Higher Oil Level Used With New Lining{4110,3004}
1979/04/16 New Flywheel Clutch Uses Three Driven Discs Instead Of Two; Must Be Used Only With New Flywheel{3052,3054,1156}
1979/04/16 90° Elbows On Quick Disconnect Couplers Make Installation Easier{0690}
1979/04/16 Longer Self-Locking Bolts Now Used To Hold The Parking Brake Group To The Bearing Retainer{3161,3275,4267}
1979/04/16 How To Extend The Service Life Of 1P5550 Fuel Cam Locking Tool Assembly{0654,1250}
1979/04/16 Hydraulic Accumulator Now Used In Lines Group For Draft Frame{5077,5057,5314,5055}
1979/04/16 Clean The Orifice In The Pressure Control Group During A Transmission Overhaul{3167}
1979/04/16 Testing And Adjusting Procedure For 5P4210 Modular Cab Tilting Cylinder And Valve{0620}
1979/04/23 New Retaining Rings Used In Planetary Groups For Power Shift Transmissions{3176,3150}
1979/04/23 Dowtherm Test Strips No Longer Available{0651,1350}
1979/04/23 Reinforcement Of Draft Frame Gooseneck To Prevent Cracks{6220,6209,6207}
1979/04/23 New Metering Pump In Steering System Has Improved Internal (Inside) Seals{4306}
1979/04/30 The 6B5067 Race And Roller Assembly, Used In Final Drive Group, Can Be Either Of Two Designs{4050,4091}
1979/04/30 New " Drive 6V94 Universal Joint Is Available{0612,1253}
1979/04/30 2P8316 Dowel Now Available For Parts Service{0652}
1979/04/30 The Service Life Of A Power Shift Transmission Is In Direct Relation To The Maintenance Of Its Lubrication System{3004,3179,3150}
1979/04/30 If Loose Bolts Are A Problem, A Modification Can Be Made To The Plate Used To Hold The Leveling Valve For The Cushion Hitch{5313,7107}
1979/04/30 New Ring Gears Used In Flywheel Assemblies{1158}
1979/04/30 6V98 Socket Available To Remove Or Install Tachometer Drive Dowel In Engine Camshaft On D3 Tractors, 910 and 931 Loaders{0612,1210,7462}
1979/04/30 Seals (Double-Lip Type) Made Of Viton Material Are Now Used In Vickers Pumps Which Have Steel-Backed Bronze Plates Between Rotor And End Plates{5055}