SEAL ASSEM. 7K8466 - Caterpillar

Engine:
3508 (S/N: 96Y1-UP)
3508B (S/N: S2A1-UP; S2B1-UP; S2D1-UP; S2E1-UP; S2F1-UP; 3DM1-UP; 7SM1-UP; C8R1-UP; 5PS1-UP; 1TW1-UP)
3508C (S/N: TTA1-UP; TTB1-UP)
3512 (S/N: 50Y1-UP; 66Z1-UP)
3512B (S/N: PWG1-UP; S2G1-UP; S2H1-UP; S2J1-UP; S2K1-UP; S2L1-UP; S2M1-UP; 7HM1-UP; 8EM1-UP; S2N1-UP; 1PW1-UP; 3ZW1-UP; 4AW1-UP)
3516 (S/N: 3SS1-UP; 29Z1-UP)
3516B (S/N: S2P1-UP; S2S1-UP; S2T1-UP; S2W1-UP; S2Z1-UP)
Engine News SEBD9961, 26 September 2014, "New Turbocharger Oil Drain Tubes Are Used for Certain 3500 Engines". Disregard the previous article, serial number effectivity has been updated.Description of Change: The new tube assemblies utilize brazed on ends that are more resistant to vibration.Adaptable To: The new tube assemblies are a direct replacement for the former tube assemblies. The new tube assemblies are adaptable back to first production on the serial numbers listed above.Note: The new part utilizes the same O-Ring seals as the former part. New O-Ring seals should be used with the new part.
Table 1
New Part Number     Former Part Number    
457-7488     113-4646    
462-7519     185-5855    This change is effective for the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers    
S/N:96Y02175-UP    
S/N:1TW00363-UP    
S/N:3DM00544-UP    
S/N:5PS00838-UP    
S/N:7SM01015-UP    
S/N:C8R00163-UP    
S/N:S2A00197-UP    
S/N:S2B00851-UP    
S/N:S2D00275-UP    
S/N:S2E00853-UP    
S/N:S2F00126-UP    
S/N:TTA00277-UP    
S/N:TTB00586-UP    
S/N:50Y76018-UP    
S/N:66Z00987-UP    
S/N:1PW00456-UP    
S/N:3ZW01208-UP    
S/N:4AW01894-UP    
S/N:7HM00271-UP    
S/N:8EM00562-UP    
S/N:PWG00231-UP    
S/N:S2G00425-UP    
S/N:S2H00681-UP    
S/N:S2J00795-UP    
S/N:S2K00382-UP    
S/N:S2L00992-UP    
S/N:S2M00203-UP    
S/N:S2N00132-UP    
S/N:29Z01699-UP    
S/N:3SS00324-UP    
S/N:S2P00266-UP    
S/N:S2S00495-UP    
S/N:S2T00116-UP    
S/N:S2W00151-UP    
S/N:S2Z00441-UP