So I recently ordered a new oil pump, water pump, and timing belt.

Oil pump: 15100-PR4-A03
Water pump: 19200-P72-013
Timing belt: 14400-P72-014

I think I may have ordered incorrect parts. The oil pump is for a 90-95 Integra LS, the water pump is for a 96-01 GSR, and the timing belt is for a 94-01 GSR.

My question is, will these parts work together on a 95 B18B1 motor? I thought all GSR water pumps were the same? I probably entered the incorrect oil pump part number, but will it still work?

 

They will work. I know from experience. If you plan on using a vtec head or revving higher you should get the gsr oil pump. I think 96+ ls has the same pump as gsr but I can't remember the exact year they changed it.

 

Everything you have will work
all oil pumps are the same after 96. if you order a type r, its still gonna say pr4 on it

 

I do not plan on using a vtec head

I believe that is true but I have a 90-95 oil pump for an LS. I guess my main question regards to the oil pump.

 

You want that one cause the 96+ has a sensor you don't need

 

What sensor is on the 96+?

 

Crank sensor.

Also the gsr waterpump and timing belt combo will work, but it more effective at higher rpms. A ls pump flows more at lower rpms.

 

As long as the timing belt and water pump are for the same application, it will work. LS belt and LS WP, or VTEC belt and VTEC WP.

Oil pumps are the same for all engines OBD1 (95 and older) and for all engines OBD2 (96 and newer). Since you have a 95 then you got the correct oil pump. You can use the newer oil pump, but you have to modify the timing belt covers for it to work.

 

I'll continue to use the OBDI LS oil pump. Should work fine with the OBDII GSR t-belt and water pump.

 

Great info in here.