Honda Throttle Body Size Chart

Below is ALL D/B/H/F series Honda engines factory throttle body sizes. This chart can be used to cross reference when doing a throttle body swap from another engine to save money instead of buying a after-market one.

Engine          TB Size (MM)

D15B7 -               56 MM
D16A6 -               55 MM
D16Y7 -               56 MM
D16Y8 -               56 MM
D16Z6 -               56 MM
ZC -                     55 MM
B16A1 -               55 MM
B16A8                 55 MM
B18C1                 60 MM
B18C5                 62 MM
B18A                   58 MM
B18B                   60 MM
B16A SiR             58 MM
B16A Sir2           60 MM
B16A2                60 MM
B16A3                60 MM
B20B                  60 MM
B20Z                  60 MM
H22A                  60 MM
H23A                  60 MM
F20C                  62 MM
F22                    60 MM
F23                    60 MM