- Excavator
- 5130B (S/N: 4CS1-218)
- Off-Highway Truck/Tractor
- 777D (S/N: AGC1-2547; 3PR1-1126; 2YW1-105; AGY1-80)
- 785C (S/N: 1HW1-134; APX1-2404)
- Track-Type Tractor
- D11R (S/N: AAF1-290; 8ZR1-471; 9TR1-473; 9XR1-189; 7PZ1-5050)
- Wheel Loader
- 992G (S/N: 7HR1-387; AZX1-839; ADZ1-623)
Description Of Change: The new cylinder pack components improve engine reliability and durability. The new cylinder liner has an anti-polishing sleeve and upper liner seal with improved thermal properties. The piston has a rectangular steel compression ring and rectangular steel intermediate ring.
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. |
These changes are effective with the following engine serial numbers:
- 2GR08292-UP
- 8BR03231-UP
Note: These changes apply only to the machine serial numbers listed above if a 3508B or 3512B standard stroke engine is installed. These changes do not apply to machines with High Displacement (HD) engines .or other 3500 series engines.
The new cylinder pack components are direct replacements for the previous cylinder packs components. If replacement of the previous cylinder packs occurs, the replacement with the new cylinder packs must be done for every cylinder in the engine. The new cylinder packs are not compatible to be run with the previous cylinder packs in the same engine.
Table 1 contains the new and previous part numbers for the cylinder packs.
New Part Number | Part Name | Previous Part Number | Qty |
---|---|---|---|
Cylinder Pack As | 1 | ||
Piston Ring (Intermediate) | 1 | ||
Cylinder Liner | 1 | ||
Piston | 1 | ||
Piston Ring (Top) | 1 | ||
Liner Seal | 1 | ||
Sleeve | N/A | 1 |
Part Number | Part Name | Qty |
---|---|---|
Piston Ring (OIL CONTROL) | 1 | |
Piston Pin | 1 | |
Pin Retainer | 2 | |
Retainer As (PISTON COOLING JET) | 1 | |
Piston Cooling Jet As | 1 | |
Connecting Rod | 1 |
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Illustration 1 | g06330714 |
(1) New piston ring groove
(2) Previous piston ring groove |
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Illustration 2 | g06023610 |
(1) Anti-Polishing Sleeve |
Note: Anti-polishing sleeve (1) must be installed before installation of the cylinder head or related components.
The new 485-8003 Tool As will work with cuff and non-cuffed cylinder liners. The tool is designed to seat inside the cuff counterbore, eliminating the need for use of the 471-6593 Tool As.