They don't have to be. Most junk yards have a "swap manual" or something like it. The dealer can check the manual to tell you what makes are compatible with your car parts.
Replacement seat belts can be bought from good automobile parts providers. Alternatively a garage which sells that type of car from new can source the belts.
http://www.wjjeeps.com/serpentine.htm
No this motor has a chain it should never need replacement if vehicle has had oil changes on a regular basis
The N14 has an automatic tensioner. Either your tensioner or your belts are in need of replacement.
Timing chains have no scheduled replacement they are designed to last the life of the engine. Timing belts have replacement intervals
There is no recommended replacement interval given for the chain replacement timing belts are critical, chains are not.
to prevent us from getting hurt.
You can purchase your replacement belts directly from the Hoover Parts Store if you want to get them online (on sale today) . Most of the home improvement stores such as Home Depot and Lowe's carry these also. The part number that you need is: HO 38528035
as far as i know all Lexus have timing belts which require replacement every 60 or 90,000 miles depending on the year.
The Bissell 32074 replacement belts aren't generic at all. They're very much a quality product and should last a long time.
When changing belts, it is important to know the layout and have a diagram to help guide the removal and replacement of these belts. A diagram for these belts can be found in the maintenance manual of a 1989 Toyota Corolla 4-A-F.
When should the timing belts be changed on a 2001 Mitsubishi, Galant?