Classic Bike Parts, Pistons & Gifts

We sell a wide range of Classic Motorcycle pistons, catering for almost every model of classic bike. We also produce a wide range of classic motorcycle posters, artwork and limited edition prints. Products recently added to our catalogue include, metal signs and and gasket sets. Due to recent changes in US shipping costs, unfortunately, we are currently unable to post to this country. If customers enter a US address but select a different country to attempt to purchase, the payment will have to be refunded, less a refund charge which includes the charges made to us from Credit Card/Paypal.

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Home > Products > Classic Motorcycle Pistons > AJS Pistons

AJS Pistons

AJS Pistons are supplied complete with rings & pins.


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AJS Piston - 16M, OHV 347cc, Year: 1947, +.020

AJS - 16M, OHV 347cc, Year: 1947 Bore 2.718""/69.056mm +.020"" 4 Pistons Available (Original Hepolite)...

AJS Piston - 16M, OHV 347cc, Year: 1947, +.020
£107.19
£104.58
InfoBuy

AJS Piston - 16M, OHV 347cc, Year: 1947, +.030

AJS - 16M, OHV 347cc, Year: 1947 Bore 2.718""/69.056mm +.030"" 2 Pistons Available (Original Hepolite)...

AJS Piston - 16M, OHV 347cc, Year: 1947, +.030
£107.19
£104.58
InfoBuy

AJS Piston - 16M, OHV 347cc, Year: 1947, STD

AJS - 16M, OHV 347cc, Year: 1947 Bore 2.718""/69.056mm 1 Piston Available (Original Hepolite) Comp Height...

AJS Piston - 16M, OHV 347cc, Year: 1947, STD
£107.19
£104.58
InfoBuy

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.020

AJS - 248cc OHV (Model 14) Year: 1959-64, compression ratio 7.8:1 (bore 2.750 +.020) compression height...

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.020
£178.73
£174.38
InfoBuy

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.030

AJS - 248cc OHV (Model 14) Year: 1959-64, compression ratio 7.8:1 (bore 2.750 +.030) compression height...

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.030
£178.73
£174.38
InfoBuy

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.040

AJS - 248cc OHV (Model 14) Year: 1959-64, compression ratio 7.8:1 (bore 2.750 +.040) compression height...

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.040
£178.73
£174.38
InfoBuy

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.060

AJS - 248cc OHV (Model 14) Year: 1959-64, compression ratio 7.8:1 (bore 2.750 +.060) compression height...

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, +.060
£178.73
£174.38
InfoBuy

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, STD

AJS - 248cc OHV (Model 14) Year: 1959-64, compression ratio 7.8:1 (bore 2.750) compression height 2.3/64,...

AJS Piston - 248cc OHV (Model 14), Year: 1959-64, STD
£178.73
£174.38
InfoBuy

AJS Piston - 248cc OHV, Year: 1930-33, +.020

AJS - 248cc OHV, Year: 1930-33 (model 33-12, R12, S12, T12) Ring below pin (bore 65mm +020) compression...

AJS Piston - 248cc OHV, Year: 1930-33, +.020
£128.18
£125.06
InfoBuy

AJS Piston - 248cc OHV, Year: 1930-33, STD

AJS - 248cc OHV, Year: 1930-33 (model 33-12, R12, S12, T12) Ring below pin (bore 65mm) compression height...

AJS Piston - 248cc OHV, Year: 1930-33, STD
£128.18
£125.06
InfoBuy

AJS Piston - 346cc OHC, Year: 1934-36, +.030

AJS - 346cc OHC Year: 1934-36(competition model 34/7, 35/7, 36/7, compression ratio 6:1, (bore 70mm +.030)...

AJS Piston - 346cc OHC, Year: 1934-36, +.030
£104.82
£102.28
InfoBuy

AJS Piston - 346cc OHC, Year: 1934-36, +.030

AJS - 346cc OHC Year: 1934-36(model 34/7, 35/7, 36/7, high comp compression ratio 11:1 (bore 70mm +.030)...

AJS Piston - 346cc OHC, Year: 1934-36, +.030
£94.38
£92.08
InfoBuy

AJS Piston - 346cc OHC, Year: 1934-36, +.040

AJS - 346cc OHC Year: 1934-36(competition model 34/7, 35/7, 36/7, compression ratio 6:1, (bore 70mm +.040)...

AJS Piston - 346cc OHC, Year: 1934-36, +.040
£104.82
£102.28
InfoBuy

AJS Piston - 346cc OHC, Year: 1934-36, +.040

AJS - 346cc OHC Year: 1934-36(model 34/7, 35/7, 36/7, high comp compression ratio 11:1 (bore 70mm +.040)...

AJS Piston - 346cc OHC, Year: 1934-36, +.040
£94.38
£92.08
InfoBuy

AJS Piston - 346cc OHC, Year: 1934-36, STD

AJS - 346cc OHC Year: 1934-36(model 34/7, 35/7, 36/7, high comp compression ratio 11:1 (bore 70mm) compression...

AJS Piston - 346cc OHC, Year: 1934-36, STD
£94.38
£92.08
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.020

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.020
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.030

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.030
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.040

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.040
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.060

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.060
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.5 MM

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.5 MM
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.75 MM

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, +.75 MM
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, STD

AJS - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak) Year: 1935-46, single & 2 port. (bore 2.23/32,...

AJS Piston - 347cc OHC (16, 16M, 26, 26SS, 26T, Silver Streak), Year: 1935-46, STD
£131.2
£128.02
InfoBuy

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.020

AJS - 347cc OHV (16M) Year: 1948-55, compression ratio 6.3:1. Matchless - 347cc OHV (G3/L) Year: 1948-55,...

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.020
£135.55
£132.26
InfoBuy

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.030

AJS - 347cc OHV (16M) Year: 1948-55, compression ratio 6.3:1. Matchless - 347cc OHV (G3/L) Year: 1948-55,...

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.030
£135.55
£132.26
InfoBuy

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.040

AJS - 347cc OHV (16M) Year: 1948-55, compression ratio 6.3:1. Matchless - 347cc OHV (G3/L) Year: 1948-55,...

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.040
£135.55
£132.26
InfoBuy

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.060

AJS - 347cc OHV (16M) Year: 1948-55, compression ratio 6.3:1. Matchless - 347cc OHV (G3/L) Year: 1948-55,...

AJS Piston - 347cc OHV (16M), Year: 1948-55, +.060
£135.55
£132.26
InfoBuy

AJS Piston - 347cc OHV (16M), Year: 1948-55, STD

AJS - 347cc OHV (16M) Year: 1948-55, compression ratio 6.3:1. Matchless - 347cc OHV (G3/L) Year: 1948-55,...

AJS Piston - 347cc OHV (16M), Year: 1948-55, STD
£135.55
£132.26
InfoBuy

AJS Piston - 347cc OHV (3516, 3616, 3716, 3816, 3916, 3916M, 3526, 3626, 3726, 3826, 3926, 3926SS, 3926T, Silver Streak, Year: 1935-39, +.020

AJS - 347cc OHV (35/16, 36/16, 37/16, 38/16, 39/16, 39/16M, 35/26, 36/26, 37/26, 38/26, 39/26, 39/26SS,...

AJS Piston - 347cc OHV (3516, 3616, 3716, 3816, 3916, 3916M, 3526, 3626, 3726, 3826, 3926, 3926SS, 3926T, Silver Streak, Year: 1935-39, +.020
£91.9
£89.66
InfoBuy

AJS Piston - 347cc OHV 16, 16M, 26, 26SS, 26T, Silver Streak., Year: 1935-46, +.030

AJS - 347cc OHV 16, 16M, 26, 26SS, 26T, Silver Streak. Single & 2 port. Year: 1935-46. CR 8.5:1 High comp,...

AJS Piston - 347cc OHV 16, 16M, 26, 26SS, 26T, Silver Streak., Year: 1935-46, +.030
£111.26
£108.54
InfoBuy

AJS Piston - 348cc OHV (16MCS), Year: 1956-59, +.8 MM

AJS - 348cc OHV (16MCS) Year 1956-59, compression ratio 9.9:1 (bore 72mm +.8mm) compression height 2.23/64,...

AJS Piston - 348cc OHV (16MCS), Year: 1956-59, +.8 MM
£113.23
£110.47
InfoBuy

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.020

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.020
£174.59
£170.34
InfoBuy

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.030

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.030
£174.59
£170.34
InfoBuy

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.040

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.040
£174.59
£170.34
InfoBuy

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.060

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, +.060
£174.59
£170.34
InfoBuy

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, STD

AJS Piston - 348cc OHV (Model 8), Year: 1960-62, STD
£174.59
£170.34
InfoBuy

AJS Piston - 495cc OHC, Year: 1934-36, +.020

AJS - 495cc OHC Year: 1934-36, competition model 34/10, 35/10, 36/10, compression ratio 6:1, (bore 79mm...

AJS Piston - 495cc OHC, Year: 1934-36, +.020
£117.95
£115.08
InfoBuy

AJS Piston - 495cc OHC, Year: 1934-36, +.020

AJS - 495cc OHC year 1934-36(racing model 34/10, 35/10, 36/10, compression ratio 11:1 (bore 79mm +.020)...

AJS Piston - 495cc OHC, Year: 1934-36, +.020
£104.82
£102.28
InfoBuy

AJS Piston - 495cc OHC, Year: 1934-36, +.030

AJS - 495cc OHC Year: 1934-36, competition model 34/10, 35/10, 36/10, compression ratio 6:1, (bore 79mm...

AJS Piston - 495cc OHC, Year: 1934-36, +.030
£117.95
£115.08
InfoBuy

AJS Piston - 495cc OHC, Year: 1934-36, +.030

AJS - 495cc OHC year 1934-36(racing model 34/10, 35/10, 36/10, compression ratio 11:1 (bore 79mm +.030)...

AJS Piston - 495cc OHC, Year: 1934-36, +.030
£104.82
£102.28
InfoBuy

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.020

AJS - 497cc OHV (18CS) Year: 1956-58, compression ratio 8.7:1 (bore 86mm +.020"") compression height 2.19/64,...

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.020
£192.73
£188.03
InfoBuy

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.030

AJS - 497cc OHV (18CS) Year: 1956-58, compression ratio 8.7:1 (bore 86mm +.030"") compression height 2.19/64,...

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.030
£192.73
£188.03
InfoBuy

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.040

AJS - 497cc OHV (18CS) Year: 1956-58, compression ratio 8.7:1 (bore 86mm +.040"") compression height 2.19/64,...

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.040
£192.73
£188.03
InfoBuy

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.060

AJS - 497cc OHV (18CS) Year: 1956-58, compression ratio 8.7:1 (bore 86mm +.060"") compression height 2.19/64,...

AJS Piston - 497cc OHV (18CS), Year: 1956-58, +.060
£192.73
£188.03
InfoBuy

AJS Piston - 497cc OHV (18CS), Year: 1956-58, STD

AJS - 497cc OHV (18CS) Year: 1956-58, compression ratio 8.7:1 (bore 86mm) compression height 2.19/64,...

AJS Piston - 497cc OHV (18CS), Year: 1956-58, STD
£192.73
£188.03
InfoBuy

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.020

AJS - 498cc OHV (18S) Year: 1956-68, compression ratio 7.3:1 (bore 3.250 +.020"") compression height 2.1/16,...

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.020
£155.35
£151.57
InfoBuy

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.030

AJS - 498cc OHV (18S) Year: 1956-68, compression ratio 7.3:1 (bore 3.250 +.030"") compression height 2.1/16,...

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.030
£155.35
£151.57
InfoBuy

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.040

AJS - 498cc OHV (18S) Year: 1956-68, compression ratio 7.3:1 (bore 3.250 +.040"") compression height 2.1/16,...

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.040
£155.35
£151.57
InfoBuy

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.060

AJS - 498cc OHV (18S) Year: 1956-68, compression ratio 7.3:1 (bore 3.250 +.060"") compression height 2.1/16,...

AJS Piston - 498cc OHV (18S), Year: 1956-68, +.060
£155.35
£151.57
InfoBuy

AJS Piston - 498cc OHV (18S), Year: 1956-68, STD

AJS - 498cc OHV (18S) Year: 1956-68, compression ratio 7.3:1 (bore 3.250) compression height 2.1/16, piston...

AJS Piston - 498cc OHV (18S), Year: 1956-68, STD
£155.35
£151.57
InfoBuy

AJS Piston - 498cc OHV (20), Year: 1956-60, +.020

AJS - 498cc OHV (20) Year: 1956-60, compression ratio 7.8:1 (bore 66mm +.020"") compression height 1.977"",...

AJS Piston - 498cc OHV (20), Year: 1956-60, +.020
£118.3
£115.44
InfoBuy
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