Versions of center nut for drive shaft which may occur

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Versions Of Center Nut For Drive Shaft

Courtesy of VOLVO CARS OF NORTH AMERICA.

-1997:

A: Lock nut with separate curved spring washer.

If the lock nut with spring washer has already been replaced, version B2 or B3 (without separate spring washer) may occur.

1998 - 2000:

B1: Black flanged lock nut, (open head).

If version B1 has already been replaced, version B2 or B3 may occur.

B2: Black flanged lock nut (black washer), P/N 920 0250.

B3: Black (service) flanged lock nut (black washer with tab), P/N 3088 4229.

NOTE:

If the lock nut mentioned in B1, B2 or B3 has been installed, and if it is loose or has been replaced during a repair, version (C) must be used.

2001-:

C: Yellow flanged lock nut (black washer), P/N 3089 6406.