SEAL 6H4498 - Caterpillar

Engine3512 (S/N: PTG1-UP)3512B (S/N: LDF1-UP; PTM1-UP)3516B (S/N: GZT1-UP)
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 new blower fan assembly is more robust for long-term durability.The new 128-5631 Blower Fan As is a direct replacement for the 115-1783 Fan Spider As.The new 128-5631 Blower Fan As blower fan assembly is adaptable to the above engines back to first production.To achieve the same cooling capability and engine power requirements, the 128-5631 Blower Fan As speed must be reduced. The new parts required to slow down the fan speed are listed in Table 1.
Table 1
New Pulley Ratio New Part Number Part Name Former Part Number(1) Former Pulley Ratio
0.47 1N-3713 V-Belt Set 8N-6700 0.52
7W-6470 Fan Drive Pulley 7W-5109
229-7306 Crankshaft Pulley 8N-6564
0.56 1N-3713 V-Belt Set 8N-6705 0.627
7W-5108 Fan Drive Pulley 7W-6470
8N-6564 Crankshaft Pulley 8N-6567
(1) The former part number listed is for reference only and may differ.