My OEM was 15 years old and 160k miles when it still barely passed last summer. And barely could have been due to other reasons possibly. I replaced it with an aftermarket when I had to dismantle the exhaust for the head job.

Be sure to use anti-sieze so you will have a better chance when the aftermarket need replacing.

Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com