This is scraped from a
toyotanation reply in response to a '98 tb job, and am posting to give you an idea of parts needed and prices from Rockauto. You can't go wrong getting them from the dealer aside from price rape, but doesn't mean you will automatically go wrong not getting them from the dealer, which I chose not to.
Fwiw, I have read great things about Toyota RTV too, altho most don't use it.
GATES K030295 Micro-V AT Power Steering Belt $5.14
GATES K050435 Micro-V AT Alt/AC Belt $14.10
FEL-PRO TCS45920 Crankshaft Front Seal Set $5.10
FEL-PRO TCS45641 Camshaft Front Seal $3.66
NATIONAL 221820 Polyacrylate Oil Pump Shaft Seal $2.86
GATES TCK199 (1 Belt, 1 Tensioner, 1 Idler) Timing Belt Component Kit
$52.89
STANT 48278 180° w/Jiggle Pin OE Type Thermostat $10.94
AISIN WPT010A Water pump w/o housing $30.79
FEL-PRO VS50304R1 Valve Cover Gasket Set w/Spark plug tube seals
$18.26
Subtotal $143.74
Shipping about $20
An addition to that would be the entire water pump housing for a little more money, can't go wrong there but not always necessary if on a budget. Another would be the oil pump, which no doubt leaks at this point and is only accessible by removing timing belt. It will need atleast a new seal and o-ring (~$12 aftermarket for both, $30 dealer iirc), and possibly new drive rotor and driven rotor ($34 for set at dealer...these are the gear components) if there is scoring on these, and possibly entire oil pump assembly if the housing is heavily worn/scored from gears as well.
That site is the best imo for great toyota discussions/resources.[/URL]
DIY Timing Belt + Waterpump + Oil Seal Change 5S-FE (GEN3)
If I'm not mistaken, if yours is a 4 cylinder, you will have this same engine.