- d15b7 - 56
- d16a6 - 55
- d16y7 - 56
- d16y8 - 56
- d16z6 - 56
- ZC - 55
- d16a1 - 55
- d16a8 - 55
- b18c1 - 60
- b18c5 - 62
- b18a - 58
- b18b - 60
- b16a SiR - 58
- b16a Sir2 - 60
- b16a2 - 60
- b16a3 - 60
- b20b - 60
- b20z - 60
- h22a - 60
- h23a - 60
- f20c - 62
- f22 - 60
- f23 - 60
OEM Honda Throttle Body Sizes
b18c1 tb b18c5 tb d series throttle bodies f series throttle bodies gsr throttle body h series throttle bodies honda throttle body size oem itr throttle body Technical Articles
This is just good all around information to have available. I get asked OEM throttle body sizes all the time and here is a great quick reference.
Honda Throttle Body Sizing Chart
Inside Diameters (in mm)
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