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  1. Differences between viscous coupling for pre FL and FL

    Drivetrain Tech Center
    Hello from Germany! When I search the web, I can find two viscous couplings for the NP249 respectively the NV249, or better say the pre Facelift and the Facelift. The one for the pre Facelift (1993-1996) has part# 4897221AA and the one for the Facelift modell (1997-1998) has part# 4897220AA...