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Service bulletin 410100NAS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id610557
Published by NHTSA2000-05-05
Manufacturer's number410100NAS
Manufacturer's date2000-04-07
Replaces410297NAS
NHTSA componentPOWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

NHTSA's summary

CONCERNS WITH LEAKING TRANSFER GEARBOX SEAL. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Transfer case

Vehicles listed
LAND ROVER DEFENDER
LAND ROVER DISCOVERY
LAND ROVER DISCOVERY II (the catalog's model; the bulletin names a series or trim of it)
LAND ROVER DISCOVERY II1999 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.