It always has the same number of spark plugs as it has cylinders. If it a 6 cylinder it has 6 plugs. If it's an 8 cylinder it has 8 plugs. If it's a 4 cylinder it has 4 plugs. Toyota doesn't make a 4 cylinder 4Runner.
.044
Remove the old plugs, install new plugs.
The 2001 Toyota Sienna spark plug gap is .023. Most spark plugs will be pre-gapped by the manufacture of the spark plug.
The 2001 Toyota 4Runner has 24 valves.
The 2001 Toyota 4Runner has a V6 engine.
The 2001 Toyota 4Runner has a 4-speed automatic.
The 2001 Toyota 4Runner is a gas-powered vehicle.
The 2001 Lexus IS300 uses a 2JZ-GE inline-6 Toyota engine, and has 6 spark plugs.
The height of the 2001 Toyota 4Runner is 5 ft. 7.5 in. (67.5 in.).
The 2001 Toyota 4Runner is 15 ft. 3.3 in. (183.3 in.) long.
The 2001 Toyota 4Runner has a 32 degrees angle of approach.
The 2001 Toyota 4Runner has double overhead cam (DOHC).