Solex pump membrane   P/N 51374/5

sold as a single membrane, requires 2 per carburettor
these membranes are between .020” and .025” thick [.0.5mm to 0.64mm]

Dimensions: O/all Width 61mm [2.4”], O/all Height 48mm [1.9”], 9 holes total 
May be either black or red depending on country of origin

Also available are membranes in 0.010” [0.25mm] thick P/N 51374/1

As used in:

30AAPI; 30PAAI; 30PAAI-2; 32PAIAT; 32PAATI; 32PAITA; C32/35APAI-2; 35FAIE;40AIP-2; 40FAIE; 40RAIP-2; 40PHH; B46FPAI and more  

Borgward Isabella TS sedan 1958-59  32PAITA  OE52

Borgward Isabella TS sedan Late 1959-63 32PAITA E14592

Borgward H2300 6 Cyl.; 1956-1958

Borgward Otto, B1500, 4 Cyl.; 1957 

BMW 501A, 501B 6 Cyl.; 1954-1955

BMW 105/6; 1955-1958 

Bristol 400/85 1948-49 with 30AAPI 

Citroen Big 6 1949-55 with 30PAAI

Citroen Light 15 1946-51 with 35FAIE

Commer B322; B357; B544; B569; 1955-58 with 35AIP

Commer B & BX Mk IV B544; B569; B669 1958-63 with 40AIP-2

Commer C & CX Mk III C715; C741; C762 1955-61 with 40AIP-2

Commer C; CX; CY with uprated engine 1961-63 with B46FPAI

Commer H541 1957-58 with 35AIP-2

Commer R Models Mk I; R541; R715; R741; Avenger Mk I; 1949-51 with 40FAIE

Commer R Models Mk II; R715; R741; R762; Avenger Mk II R589 1952-54 with 40AIP-2

Commer T Models T222; T255; T322; T440; T467 1951-54 WITH 35AIP-2 

DeSoto Trucks 1-08BS; to 2-33BS 1953-58 with 40RAIP-2

DeSoto Trucks 3-59AS 3-59BS to 3-59B757 1953-56 with 40AIP-2

DeSoto Trucks 6-71AS to 8-71AS & BS to 8-71B418 1953-56 with 40AIP-2

Dodge Trucks 6 cyl. 1-08BD; CD; DD; 2-26BD; CD; 2-33BD; 1953-58 with 40RAIP-2

Dodge Trucks 3-59AS; 3-59BS; to 3-59B757 1953-56 with 40AIP-2

Dodge Trucks 6-71AD; 6-71BD; to 6-71B774; 8-65AD & BDto 8-65B264; 8-71AD & BD to 8-71B418 1953-56 with 40AIP-2

Fargo Trucks 1-08BF; 1-08CF; 1-08DF; 2-26BF; 2-26CF; 2-33BF 1953-58 with 40RAIP-2

Fargo Trucks 3-59AF; 3-59BF; to 3-59B757 1953-56 with 40AIP-2

Fargo Trucks 6-71AF; 6-71BF; to 6-71B774; B-65AF; 8-65BF; to 8-65B264; 8-71AF; B-71BF to 8-71B418 1953-56 with AIP-2

Fiat 1100 103H; 103 Special 1961-63 with C32/35APAI-2 originally called 32/35APATI

Fiat 1400A 1954

Fiat 1900A 1954-1955

Ford V8 Pilot 1949-51 with 30AAPI

Ford Thames V8 Truck 1949-51 with 30AAPI

Mercedes Benz 1953 with 30PAAI

Mercedes Benz 190, 190B 1956-61 32PAITA E14609

Mercedes Benz 220S 1956-60 32PAITA E14608/I & E14608/II

Mercedes Benz 220SB 1960-63 34PAITA E14809/I & E14809/II

Mercedes Benz 300B 1954-55 32PAIAT E10481 x 2

Mercedes Benz 300B 1955-56 32PAIAT E14544 x 2

Mercedes Benz 300C 1956-58 32PAIAT E14571 x 2

Morris trucks 501; 502 5 ton 6 cyl. 1950-55 with 40AIP-2

Morris Trucks 5 Ton 4 cyl. 1945-53 with 35FAIE

Rover 75 1948-49 with 30PAAI-2

Standard 14HP Sedan 1946-48 with 35FAIE-2

Screw hole centres vertical and horizontal 35mm [1.385”]

Screw holes centres across centre of diaphragm 50.8mm [2”]

click on additional images for comparison sizes 

Check carb to note quantity used in your application. Price is for SINGLE membrane