SU Carb piston spring    P/N AUC4387

This spring has RED end on coils

Load is 4.5 oz. at 2.635”

As used in::

Austin Healey 100M Le Mans 4 cyl. 2660cc. 1954-56 H6 x 2

Austin Healey 100S 4 cyl. 2660cc. 1955-56 H6 x 2

Austin Healey 3000 Mk I BN7; BJ7; 6 cyl. 2912cc. 1961-62 HS4 x 3

Uastin Healey 3000 Mk II 6 cyl. 2912cc. 1961-62 HS6 x 3

Austin Maxi 1500cc. 1969-71 HS6 x 1

Austin Maxi 1750cc. 1970-77 HS6 x 2 

Daimler Conquest 2.5L 6 cyl. 1954-57 H6 or HD6 x 2

Daimler Empress 2.5L 6 cyl. 1954 H6 x 2

Daimler Regency 3L. 6 cyl. 1951-52 H4 x 2

Daimler Regency Mk II 3.5L. 6 cyl. 1954-55 H6 x 2

Daimler Regency Mk II 3.5L. 6 cyl. 1955-59 HD6 x 2

Daimler Regency Mk II 4.5L. 6 cyl.1954-55 HD6 x 2

Daimler Saloon 2.5L. V8 1964-68 HD6 x 2

Elva Courier 4 cyl. 1495cc. 1959 H4 x 2

Healey- Nash Healey 1950 H6 x 2

Jaguar Mk VII 3442cc.1951-56 H6Th. x 2

Jaguar XK120 1949-54 H6Th. x 2

Jaguar XK140 1954-56 H6Th. x 2

Jaguar Mk I 2.4L Stg. III tune 1956 HD6Th. x 2

Jaguar Mk I 3.4L 1957-59 HD6Th. x 2

Jaguar Mk Viii 3.4L 1956-59 HD6Th. x 2

Jaguar Mk IX 3.4L 21959-62 HD6Th. x 2

Jaguar XK150 3.4L. 1959-62 HD6Th. x 2

Jaguar XK150 3.8L. 1960-62 HD6Th. x 2

Jaguar Mk II 3.4L. & 3.8L 1960-64 HD6Th. x 2

Jaguar S Type 3.4L & 3.8L 1963-68 HS6 x 2

Jaguar 240 Series 2.4L 6 cyl. 1967-69 HS6 x 2

Jaguar 340 Series 3.4L 6 cyl 1967-69 HD6Th. x 2

Jensen 541 R & S 3993cc. 6 cyl. 1954-63  H4Th. x 3

Lea-Francis 14HP Racing 4 cyl. 1949-51 H4 x 2

Lotus – Ford 100E engine 1172cc. 1954-60 H2 x 2

MG TC Competition 4 cyl. 1250cc. 1949-50 H4 x 2

MG Magnette ZA 1489cc. 1954-55 H2 x 2

MG Magnette ZB 1489cc. 1956-58 HD4 x 2

MG Mk III 4 cyl. 1489cc. 1958-61 HD4 x 2

MG Magnette Mk IV 1622cc. 4 cyl. 1961-63 HD4 x 2

MG A 4 cul. 1489cc. 1955-59 H4 x 2

MG A Twin Cam 1588cc. 1958 H6 x 2

MG B 1798cc. 1962-72 HS4 x 2

MGB 1798cc. 1972-76 HIF4 x 2

MG Midget Mk III  1275cc. 1971-72 HS2 x 2

MG Midget 1500cc. 1974-78 HS4 x 2

MG 1100 4 cyl. 1962-63 HS2 x 2

MG 1300 4 cyl. 1967 on HS4 x 1

MG 1300 1969 HS2 x 2

Mini Seven 848cc. 1959 HS2x 1

Mini Mk I; Mk II 848cc. 1960-71 HS2 x 1

Mini Mk II 998cc. 1968-70 HS2 or HS4 x 1

Mini Mk III 848cc.; 998cc; 1098cc.; 1971-75 HS2 or HS4 x 1

Mini Clubman; Clubman GT 998cc. 1275cc. 1969-74 HS2 or HS4 x 1

Mini Cooper S 970cc. 1964 HS2 x 2

Mini Cooper S 1070cc. 1963-64 HS2 x 2

Mini Cooper S 1275cc. 1964-71 HS2 x 2

Mini Cooper Special Tuning 1973 HS6 x 2

Mini Minor 848cc. 998cc. 1098cc. 1275cc. 1975-81 HS4 x 1

Morris minor 1000 1957-59 H2 x 1

Morris Minor 1000 Series III 1098cc. 1963-70 H4 x 1

Morris 6 MS 18HP 2214cc. 6 cyl. 1948-54 H4 x 1

Morris Oxford MO 1476cc. 4 cyl. 1948-54 H2 x 1

Morris Oxford Series V 1489cc. 1959 HS2 x 1

Morris Marina 1.3L 4 cyl. 1971-80 HS4 x 1

Morris Marina TC 1.8L 1971-79 HS4 x 2

Morris Marina 1750 SC 4 cyl. 1971-77 HS6 x 1 or HS6 x 2

Norton Motorcycle Rotary Engine 1978-81 HIF4 x 2

N.S.U. Prince 1000 TT 996cc. 1963-66 HS2 x 2

Reliant Sabre w/Ford Zephyr engine 4 cyl. 17-3cc. 1963-64 HS4 x 2

Reliant Sciitar 2.5L 1965-66 HS4 x 3

Reliant Kitten & Robin 1975-79 HS2 x 1

Riley 12HP RMA II 1496cc. 1955 H4 x 2

Riley 1.5L 4 cyl. 1957-64 H4 x 2

Riley 2.6L 6 cyl. 1957-58 H4 x 2

Riley 4/68 1959-61 HD4 x 2

Riley Elf 849cc. 998cc. 1961-69 HS2 x 1

Riley 4/72 Saloon 1622cc. 1961-69 HD4 x 2

Riley Kestrel 4 cyl. 1098cc. & 1275cc. 1965-67 HS2 & Hs4

Standard Vanguard Sportsman 4 cyl. 2088cc. 1957 HD6 x 2

Trojan Van Series 5D 1951 H2 x 1

Triumph Renown 4 cyl. 2088cc 1952- 54 HD6 x 2

Triumph TR2 1991cc. 1953-55 H4 x 2

Triumph TR3 4 cyl. 1991cc. 1956-58 H6 x 2

Triumph TR3; TR3A; TR4 1991cc.1959-62 H6x 2

Triumph 4A 2138cc. 1965-66 HS6 x 2

Triumph TR7 1974-76 HS6 x 2

Triumph Spitfire Mk I; Mk II 950cc. 1962-66 HS2 x 2

Triumph Spitfire Mk III; Mk IV 1296cc. 1967-73 HS2 x 2

Triumph Spitfire Mk V 1493cc. 1974-77 HS4 x 2

Triumph 1500 1970-73 HS4 x 2

Triumph Dolomite 1300 1976-77 HS4 x 1

Triumph Dolomite 1854cc. 1975-80 HS4 x 2

Triumph Dolomite Sprint 1998cc. 1973-74 HS6 x 2  

Vanden Plas Princess 1100cc 1964 HS2 x 2

Vanden Plas Princess 1300cc. 1967-72 HS2 x 2

Vanden Plas Princess 1500cc. 1974 HS6 x 1

Volvo B14A P1900 4 cyl. 1250cc. 1954-55 H2 x 2

Volvo B14A 444; 445; 1250cc. 1956 H2 x 2

Volvo 16B 444; 122; 1788cc. 1961-66 HS6 x 2

Volvo P1800; P1800S 4 cyl. 1788cc. 1965-66 HS6 x 2

Volvo B18B 144 4 cyl. 1788cc. 1965-68 HS6 x 2

Volvo B18D 144; P544; P122; 1788cc. 1965-68 HS6 x 2

Volvo B20B 144; 1986cc. 1969-72 HIF6 x 2

Volvo B20A; B20B 144, 1986cc. 1972-77 HIF6 x 2

Wolseley 4/44 1250cc. 1953-56 H2 x 1

Wolseley 4/50 1476cc. 1948-53 H2 x 1

Wolseley 6/80 6 cyl. 2214cc. 1948-53 H2Th. x 2

Wolseley 6/90 6 cyl. 2639cc. 1954-59 H4 x 2

Wolseley 18/85 Mk II 4 cyl. 1798cc. 1969-71 HS6 x 2

Wolseley 1100 4 cyl. 2098cc. 1965-66 HS2 x 2

Wolseley 1300 4 cyl. 1275cc. 1967-68 HS4 x 1

Wolseley 1500 4 cyl. 1489cc. 1957-64 H2 x 1 & HS2 x 1

Wolseley Six 6 cyl. 2227cc. 1972-74 HS6 x 2

Wolseley Six 6 cyl. 2227cc. 1972 HIF6 x 2