Zenith mixture screw 34IV; 34IVE; 34IVET; 34IVN; 36IV; 36IVD;  36IVE; 36IVT  

As used in:

Austin Gipsy 2200cc 1967 with 36IV

Austin LD Van 2200cc 1967-70 with 36IV

Austin Truck FG; NF; 2500cc 1972-73 with 36IV

Bedford CA van 1968 with 34IV

Bedford CF van 1600cc. 1964-72 with34IV & 36IV 

Bedford CF van 1760cc. 1971-76 with 36IVE

Bedford CF van 1975cc. 1971-76 with 36IV

Commer PA van 1725cc. 1965-77 with 34IV

Commer Bluebird Caravan 1725cc. 1966-77 with 34IV
Commer 2267cc. OHV 1973-75 with 34IVE

David Brown Tractor AG3/55 1967-72 with 34IVN

Ford Corsair V4 1966-67 with 36IV

Ford Transit Van 1.7L V4 1966-67 with 36IV

Land Rover 2.25L series IIA 1966-75 with 36IV

Land Rover 2,.25L series IIA 1970-72 with 36IVE

Land Rover 2.25L series III 1972-73 with 36IV

Land Rover 2.25L series III 1973--76 with 36IV

Land Rover 2.25L 1976-80 with 36IV

Singer Gazelle VI 1725cc. 1965-66 with 34IV

Vauxhall Viva HC auto 1256cc. 1971 with 36IV

Vauxhall Viva HC 1600cc. 1969-71 with 36IV

Vauxhall Viva & Victor 1600cc. 1969-70 with 36IVD

Vauxhall Victor 101 1600cc. 1963-65 with 34IV

Vauxhall Viva & Victor 1760cc. 1971-76 with 36IVE

Vauxhall Victor FD35 2000cc. 1967-69 with 36IV