AIR COMPRESSOR AS 4819996 - Caterpillar

(S/N: AT21-UP; AP41-UP; EBF1-UP; NFJ1-UP; MFL201-UP; DNM1-UP)385C (S/N: EDA1-UP; MMA1-UP; KGB1-UP; KBC1-UP; SBE1-UP; T2E1-UP; T2F1-UP; KKK1-UP; EAM1-UP; JCM1-UP; WAW1-UP; MNZ1-UP)390D (S/N: WAG1-UP; BYP1-UP; WAP1-UP; WBT1-UP; KCZ1-UP)390F (S/N: HJD1-UP; TYE1-UP; MGF1-UP; FEH1-UP; HSM1-UP; GAY1-UP)Material HandlerMH3295 (S/N: PA91-UP)Mobile Hydraulic Power Unit374F MHPU (S/N: DP41-UP; H251-UP)385C MHPU (S/N: M4E1-UP; MSF1-UP; M3P1-UP; M3W1-UP; E1Y1-UP)390D MHPU (S/N: M1M1-UP)390F MHPU (S/N: B371-UP; H271-UP)OEM Excavator Based Specialty Solution374F OEM (S/N: FH91-UP; P4L1-UP)390F OEM (S/N: N641-UP; PT71-UP; P4J1-UP)A new gasket is now available for certain Hydraulic Excavator and Material Handler Engines. The new gasket helps to prevent oil leaks between the flywheel housing to engine block joint.The new 155-5619 Gasket replaces the former anaerobic sealant. The new 495-9526 Flywheel Housing is available with a reduced surface height to adjust for the gasket thickness. If there is no other damage to the current flywheel housing, then it is not necessary to order the new housing.The following changes are adaptable to the products within the listed serial numbers.