1999/02/01 Caterpillar

Bolts, Washers, And Spacers Grouped Into Fastener Groups In Engine Cylinder Head Groups{1100}

Usage:

3508 (95Y, 68Z),
3512 (1LM, 49Y, 65Z),
3516 (27Z, 71Z) Industrial;
3508 (6TJ),
3508B (5PS),
3512 (2WK),
3512B (3ZW),
3516 (9KF) Locomotive;
3508 (96Y, 69Z),
3508 With EUI (3PS),
3508B (2BM, 7SM, 1TW),
3512 (50Y, 66Z),
3512 With EUI (3RS),
3512B (7HM, 4TN, 2GW),
3516 (29Z, 72Z),
3516 With EUI (3SS),
3516B (8CN, 8KN, 3CW) Marine;
3508 With EUI (3TS),
3508B (3DM, 3DW),
3512 With EUI (3WS),
3512B (8EM, 1PW),
3516 With EUI (3XS),
3516B (9AN, 2FW) Marine Auxiliary;
3508 (23Z, 70Z),
3508 With EUI (5XM, 3LS),
3508B (4GM, 6PN, 2HW),
3512 (24Z, 67Z),
3512 With EUI (6PM, 3MS),
3512B (8RM, 6WN, 4AW),
3516 (4XF, 5SJ, 25Z, 73Z),
3516 With EUI (7KM, 3NS),
3516B (6HN, 7RN, 1NW) Generator Set;
3508 (97Y),
3512 (51Y),
3516 (28Z) Vehicular;
G3508 (4WD, 2JF, 9TG, 9AW),
G3512 (4KC, 5JD, 7NJ, 6JW, 7SZ),
G3516 (3RC, 8LD, 4EK, 5PN, 8PW) Engines

Description of Change: The related bolts and washers, and the related bolts, washers, and spacers have been clustered into 2 new fastener groups. The fastener groups were created to make it easier to order the related bolts, washers, and spacers.

Locations of the 131-0420 (1) and 131-0421 Fastener Groups in a typical engine cylinder head group.

Adaptable To: The new 131-0420 Fastener Group consist of one 7N-1961 Bolt and one 5P-8248 Washer. The new 131-0421 Fastener Group consist of one 7N-1961 Bolt, one 5P-8248 Washer, and one 9Y-0635 Spacer. If the washer or spacer are not needed the 7N-1961 Bolt may still be ordered individually. The chart lists the 3500 and 3500B Engine Cylinder Head Groups that included the new fastener groups.

Caterpillar Information System:

1999/02/01 Use 152-2067 Differential Pressure Gauge To Monitor Aftercooler Pressure Drop In Applications With Crankcase Fume Recirculation{1063}

1999/02/01 New Turbocharger Exhaust Coupling Used In Turbocharger Groups{1052,1061,1065}

1999/02/01 New Piston And Rod Groups Used{1214,1215}

1999/02/01 Bearing Specifications For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Drive Group{1714}

1999/02/01 Improved Cylinder Head Groups For G3400 Engines{1100,1101}

1999/01/01 Use 144-0235 Belt Tension Gauge To Check Belt Tension{7461,1357}

1999/01/01 Use 145-9342 Filter Crusher to Reduce Waste And Collect Oil{5720}

1999/01/01 Use 9U-5968 Hydrostatic Filter Group To Filter Contaminanted Oil{5050,3200,3218}

1999/01/01 Use 153-9630 PWM-Analog Test Group-Sensor Adapter Kit For DataView{1000,3000,4000,5000,6000}

1999/01/01 Use 131-5050 DataView Group and 131-5051 DataView Portable TechStation Group For Accurate Diagnostics{1000,3000,4000,5000,6000,0788}

1999/01/01 Use 149-5138 Mechanical Push/Puller For Extra Force In General Purpose Applications{0700}

1999/01/01 New 146-4080 Digital Multimeter Available For Troubleshooting Electronic Circuits{0115}

1999/02/01 161-3995 Oil Filter Spring Group Available To Increase Oil Filter Element Seating Force{1306}

1999/02/01 Use FT2613 Cap Assembly For Adjusting 7E-3407 Gas Regulator{1715}

1999/02/01 New Lines Groups Available To Eliminate Leakage In Air Piping{1058,1071}

1999/02/01 New Exhaust Manifold Shield Assemblies Provide Increased Heat Protection For Wastegate Area{1067}

1999/02/01 Use 151-8689 Seal Template Tool For Cylinder Head Combustion Surface Inspection{1101}

1999/02/01 New Prechamber Assembly And Ignition Body Assembly In Prechamber Groups{1106}

1999/02/01 New Cylinder Head Gaskets (Combustion Rings) Available{1124}

1999/02/01 New Thicker Jacket Water Side Cover Help Prevent Coolant Leaks{1201}

1999/02/01 Crankshaft Oil Passage Plugs Should Be Checked For Tightness On Some Crankshafts At Engine Overhauls{1202}

1999/02/01 New Intermittent Prelube Basic Pump Group And Bracket Assembly Used{1319}

1999/02/01 Extended Life Coolant (ELC) Now Preferred For 3600 Diesel Engines{1395}

1999/02/01 New Relief Valves Used In Prelube Lines Groups And Starting Motor Air Pressure Regulator Groups{1451,1469}