A New Cylinder Head Spacer Plate Is Now Used on Certain 3500 Machine Engines {1221} Caterpillar

A New Cylinder Head Spacer Plate Is Now Used on Certain 3500 Machine Engines {1221}

Usage:

793B 1HL

Excavator: 5130 (S/N: 7TJ1-7; 5ZL1-124); 5130B (S/N: 4CS1-218); 5230 (S/N: 7LL1-105); 5230B (S/N: 4HZ1-236)
Off-Highway Truck/Tractor: 776B (S/N: 6JC1-108); 776C (S/N: 2TK1-114); 776D (S/N: 5ER1-127; AFS1-100); 777B (S/N: 4YC1-1866); 777C (S/N: 4XJ1-1123); 777D (S/N: AGC1-2547; FKR1-2559; 3PR1-1126; 2YW1-105; AGY1-80); 784B (S/N: 5RK1-25); 784C (S/N: 2PZ1-106); 785 (S/N: 8GB1-697); 785B (S/N: 6HK1-987); 785C (S/N: 1HW1-134; APX1-2404; 5AZ1-427); 785D (S/N: DMC1-186; MSY1-726,728-734); 785G (S/N: RTL1-103); 789 (S/N: 9ZC1-677); 789B (S/N: 7EK1-688); 789C (S/N: 2BW1-2128); 789D (S/N: SPD1-730,732-733,741-741; SHH1-319); 793 (S/N: 3SJ1-56); 793B (S/N: 1HL1-524); 793C (S/N: CBR1-108; 4AR1-424; ATY1-1124; 4GZ1-264); 793D (S/N: FDB1-1941,1943-1943,1945-1946,1948-1948,1954-1959); 797 (S/N: 5YW1-277); 797B (S/N: JSM1-488); MT4400D AC (S/N: MH41-803; MT41-808)
Track-Type Tractor: D11N (S/N: 4HK1-635; 74Z1-1152); D11R (S/N: AAF1-290; 8ZR1-471; 9TR1-473; 9XR1-189; 7PZ1-1705)
Wheel Dozer: 854G (S/N: AMP1-355; A4W1-288; 1JW1-244)
Wheel Loader: 992G (S/N: 7HR1-387; AZX1-839; ADZ1-623); 994 (S/N: 9YF1-227); 994D (S/N: 3TZ1-336); 994F (S/N: 4421-340); 994H (S/N: DWC1-530); 994K (S/N: MM91-300; MRK1-321; SMX1-201)

Description Of Change: The new space plate is made thicker and the spacer plate is now made from iron instead of aluminum. The cylinder head bolt torque procedure and cylinder liner projection values have also been updated for the new spacer plate.

Adaptable To:

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

The new 519-7297 Spacer Plate replaces the former 362-9677 Spacer Plate.

The new 519-7297 Spacer Plate is only designed to be compatible with the 362-8264 Cylinder Head Gasket (MLS).

The 362-9677 Spacer Plate has been canceled.

Reference: Special Instruction, M0095046, Cylinder Liner Projection and Head Bolt Torque Procedure for the 519-7297 Spacer Plate for Certain 3500 engines for additional information.

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Illustration 1	g06316551
519-7297 Spacer Plate

This change is effective for the machine engine serial numbers listed in Table 1.

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Table 1
Effective Engine Serial Numbers
S/N:99W03612-UP
S/N:7YG02257-UP
S/N:96Z00951-UP
S/N:4WJ01429-UP
S/N:54Z01223-UP
S/N:2PK01728-UP
S/N:2GR08288-UP
S/N:8BR03203-UP
S/N:7TR03698-UP
S/N:TRE00107-UP
S/N:8WM03438-UP
S/N:8NZ00259-UP
S/N:TRD00111-UP
S/N:3TN00999-UP
S/N:B7F00919-UP
S/N:D8500113-UP
S/N:B8F00497-UP
S/N:HEE00266-UP
S/N:WE300224-UP
S/N:EEE00163-UP
S/N:DE300233-UP
S/N:HEM00151-UP
S/N:EEF00151-UP
S/N:XEE00151-UP
S/N:EEZ00154-UP
S/N:WHD00108-UP
S/N:L4R00115-UP
S/N:H4R00101-UP