The available OEM alternators for the TB48 (4.8L gasoline) engine are rated up to 80 Amps and only produce 60 Amps at idle. This heavy-duty 220 Amp – NISSAN TB48 alternator generates a maximum of 200 Amps at normal driving speeds and produces 190 Amps at idle. With this alternator, you are gaining 140 Amps at idle and up to 190 Amps at cruising speeds.
The series of alternators are assembled using DENSO components and produce the highest idle output. They feature a larger housing while still retaining OEM fitment without any modification required. They run cooler and are virtually indestructible. This 220 Amp – NISSAN TB48 alternator is designed to be an exact replacement to the OEM alternator for the NISSAN TB48 engine.