| Volvo 1800 type codes | ||
| P1800 ch# 1-6000 | ||
| 1st 3 digits | = | Type (182early, 183 later) |
| 4th digit | = | Market for assembling (9=England) |
| 5th digit | = | Gearbox (4=M40, 5=M41) |
| 1st letter (if any) | = | Steering (V=LHD, H=RHD) |
| 2nd letter (if any) | = | Year (A=1961) |
| P1800S 1963 | ||
| 1st 3 digits | = | Type (always 183) |
| 4th digit | = | 4th digit= Market ( 3=all except US, 4=US) |
| 5th digit | = | Gearbox (4=M40, 5=M41) |
| 1st letter | = | Steering (V=LHD, H=RHD) |
| 2nd letter | = | Year(B=1963,D=1964,E=1965,F=1966) |
| 1800S 1964,1965,1966 | ||
| 1st 3 digits | = | Type (always 183) |
| 4th digit | = | 4th digit= Market ( 3=all except US, 4=US) |
| 5th digit | = | Gearbox (4=M40, 5=M41) |
| 1st letter | = | Steering (V=LHD, H=RHD) |
| 2nd letter | = | Year(B=1963,D=1964,E=1965,F=1966) |
| 1800S 1967, 1968 | ||
| 1st 3 digits | = | Type (always 183) |
| 4th digit | = | Market (3=all except US, 4=US) |
| 5th digit | = | Gearbox (5=M41) |
| 6th digit | = | Steering (1=LHD, 2=RHD) |
| Letter (if any) | = | Year (M=1967,P=1968) |
| 1800S 1969 | ||
| 1st 2 digits | = | Type (always 18) |
| 3rd digit | = | Engine (3 = B20B) |
| 4th digit | = | Market (3=all except US, 4=US) |
| 5th digit | = | Gearbox (5=M41) |
| 6th digit | = | Steering (1=LHD, 2=RHD) |
| Letter (if any) | = | Year (S=1969) |
| 1800E 1970 | ||
| 1st 2 digits | = | Type (always 18) |
| 3rd digit | = | Engine (4 = B20E) |
| 4th digit | = | Market (3=all except US, 4=US) |
| 5th digit | = | Gearbox (5=M41) |
| 6th digit | = | Steering (1=LHD, 2=RHD) |
| Letter (if any) | = | Year (T=1970) |
| 1800E 1971 | ||
| 1st 2 digits | = | Type (always 18) |
| 3rd digit | = | Engine (4 = B20E) |
| 4th digit | = | ? |
| 5th digit | = | Gearbox (5=Manual, 6= Aut.) |
| 6th digit | = | Steering & Market 1=LHD, 2=RHD (All markets except USA &Canda) 3=LHD (USA &Canada) |
| Letter (if any) | = | Year (U=1971) |
| 1800E 1972 and 1800ES 1972, 1973 | ||
| 1st 2 digits | = | Type (always 18) |
| 3rd digit | = | Body (2 = Coupe 3 = Estate ) |
| 4th digit | = | Engine (4=B20E 6=B20F) |
| 5th digit | = | Design (3=Without sunroof ) |
| 6th digit | = | Gearbox (5=Manual 6=Aut.) |
| 7th digit | = | Steering & Market 1=LHD, 2=RHD (All markets except USA & Canada) 3= LHD (USA &Canada except California)4=LHD (California) |
| Letter (if any) | = | Year (W=1972, Y=1973) |