toyota
2007-2021 Toyota Tundra Alternator Replacement Instructions - Also For Sequoia, Land Cruiser, LX570
By Viktor G · Certified Master Technician
Remove and replace the alternator on a 20007-2021 Toyota Tundra, including sway bar, power steering pump, and transmission oil cooler line bracket removal for access.
Skill Level: Advanced
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Parts Needed
Tools Needed
Tips & Tricks
- →Access the accessory belt tensioner from the bottom — it's very difficult to see from the top.
- →Apply penetrating oil to the power steering pump bracket to help it slide out.
- →Tap the metal insert on the power steering pump mount rearward to spread the gap and ease reinstallation; apply lubricant to the mating surfaces.
- →Unbolt the sway bar before attempting to remove the alternator — it's nearly impossible to extract from the bottom with it in place, and removal also improves ratchet access to the lower alternator bolts.
- →Remove the 12mm bolt holding the transmission oil cooler lines to the engine oil pan so the lines can be moved out of the way of the lower alternator bolts.
- →Disconnect the oil pressure sensor and nearby harness clips to gain enough clearance to extract the alternator.
- →Check the two alignment dowel sleeves after removal — they can stay stuck in the block or in the alternator; ensure one is seated at each location before reinstalling.
- →The alternator sits on a stud at the top, so the top bolt will come out but the alternator won't drop until pried off the stud.
- →Moving the power steering pump as far forward as possible before unbolting the alternator gives better access to the top nut and bolt.
Torque Specs
| Fastener | Spec |
|---|---|
| Alternator bolts and nut (3 bolts, 1 nut) | 32 ft-lbs |
| Alternator bracket bolt | 23 ft-lbs |
| Alternator main harness nut | 7 ft-lbs |
| Transmission oil cooler hose bolts | 15 ft-lbs |
| Power steering pump bolts | 21 ft-lbs |
| Wheel lug nuts | 97 ft-lbs |
| Sway bar end link bolts | 51 ft-lbs |
| Sway bar mounting bolts | 89 ft-lbs |