5203-2NSL Nachi Double Row Angular Contact Bearing 17x40x17.5 Sealed

Japan bearing quality. Many thanks for Chuy’s review.

Used this bearing to replace the tensioner pulley bearing on my 2005 Tacoma 4.0 V6. The pulley is not available from Toyota unless you buy the entire tensioner for $150+. The tensioner is also a HUGE pain to replace (requires alternator being unbolted.Save money and just buy the bearing. WARNING: THE TENSIONER PULLEY BOLT IS REVERSE-THREADED! TURN CLOCKWISE TO LOOSEN!You’ll need either a bench vise or bearing press to really do the job right but I can see how you could also hammer the bearing in and out with a 5lb sledge, the right size sockets and some wood bracing against a concrete floor.

Replaced bearing in tensioner pulley in 07 Tacoma V6. Saved me $$ over replacing the entire tensioner assembly as no one sells a pulley/bearing assembly for the tensioner. OEM was NSK BD17-31DUM. Will report back if bearing does not hold up.

This is a great buy for a factory oem bearing. Amazon seems to be about the only place to get it. I highly recommend this bearing.