List of Honda throttle body sizes

d15b7 – 56mm

d16a6 – 55mm

d16y7 – 56mm

d16y8 – 56mm

d16z6 – 56mm

ZC – 55mm

d16a1 – 55mm

d16a8 – 55mm

b18c1 – 60mm

b18c5 – 62mm

b18a – 58mm

b18b – 60mm

b16a SiR – 58mm

b16a Sir2 – 60mm

b16a2 – 60mm

b16a3 – 60mm

b20b – 60mm

b20z – 60mm

h22a – 60mm

h23a – 60mm

f20c – 62mm

f22 – 60mm

f23 – 60mm