New Harness Assembly For 3500B Engines {1408}
Usage:
3508B (2BM, 4GM, 6PN),
3512B (8RM, 6WN),
3516B (6HN, 7RN) Generator Set Engines;
3508B (2BM, 3DM, 7SM),
3512B (7HM, 8EM, 4TN),
3516B (8CN, 8KN 9AN) Marine Engines
Description of Change: A new harness assembly has replaced the former harness assembly in the above 3500B Engines. The improvements to the new harness are listed below.
Adaptable To: The new 132-6469 Wiring Harness Assembly is a direct replacement to the former 7E-5342 Wiring Harness Assembly. The former wiring harness assembly has been canceled. Within the 132-6469 Wiring Harness Assembly, the yellow 8T-5347 Wire has replaced the former brown 3E-9472 Wire. This change is adaptable to first production and up.
132-6469 Wiring Harness Improvements:
Caterpillar Information System:
1997/02/17 Installation Of Piston Pin Retainer {1215}
1997/02/17 Premachined Valve Seat Inserts And Precision Valve Guide Increase Valve Life {1103,1104}
1997/02/17 New Exhaust Manifold Sections Contain A Port To Install Temperature Sensors {1059,1921}
1997/02/17 Basic Electronic Control Group (3408 Hi Performance Marine-E Rating) Improvement {1920}
1997/02/17 New Auxiliary Oil Filter Groups Reduce The Amount Of Air Accumulating In The Auxiliary Oil Filter Tank {1318}
1997/02/17 New IMPCO 400 Single Varifuel Carburetor Replaces Former IMPCO 200D Double Carburetor {1266}
1997/01/22 Recommendation For Connecting Rod Bearing Replacement{1219}
1997/01/22 Guidelines For Reusability Of Cylinder Head Studs, Main Bearing Cap Studs, Main Bearing Cap Cross Tie Bolts, And Connecting Rod Cap Bolts And Nuts{1100,1218,1230}
1997/01/22 New Idler Gear Assembly Containing Larger And Stronger Bearing Is Less Prone To Cavitation Erosion{5138}
1997/01/22 New Turbocharger Group Improves Inlet To Turbocharger Temperatures And Turbocharger Life{1052}
1997/01/22 Update To Engine Monitoring System (EMS) Display Installation{7490}
1997/01/22 Engine Oil Recommendation For 3408E And 3412E Engines{1318}
1997/02/17 New Rod Ends Used In Exhaust Bypass Groups {1057,1250}
1997/02/17 Improved Tube Assemblies And Electronic Control Group (Pressure Module) Improves Reliability {1058,1285}
1997/02/17 New Relay Modules Replace Relay Assembly In Junction Box Groups {1400,1408}
1997/02/17 New Spark Plug Provides Better Heat Resistance {1555}
1997/03/01 New Turbocharger Group And Air Cleaner Mounting Group Provide Improved Reliability{1051,1052}
1997/03/01 New O-Ring Seal Used In Hydraulically Actuated Electronic Unit Injector (HEUI) Pump Group{1714}
1997/03/01 Diode Removed From Junction Box Group{1400,1417}
1997/03/01 Caterpillar Part Numbers Are Used For XQ Rental, Generator Set Circuit Breakers{4461}
1997/03/01 Product Support Literature Available{0374,1000}
1997/03/01 Marine Transmission Oil Pressure Sensor Location{3323}
1997/03/01 4C-8180 Timing Tool Group Required For Checking And Adjusting Fuel Injection Timing On 3408C And 3412C High Performance Marine Engines{1250}
1997/03/01 Improved Bushing O-Ring Seal Available For Injection Pump Groups{1251}