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    Piston Rings

    CNC-Motorsports offers the best selection in performance piston rings for pump gas street engines to nitrous or turbo race engines. We carry piston ring brands by Total Seal, Hastings, JE, Wiseco, CP and Mahle. Shop our selection of pre-fit, file fit, and gapless piston rings. We offer a huge selection of bore size options, and ring thickness sizes. Custom ring sets are available.
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    Products (91-100 of 112)

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    1. DRP-09024040 PART NUMBER
      09024040 Diamond Pro Select Piston Ring Set 4.040 Bore, 1/16 1/16 3/16
      09024040 Diamond Pro Select Piston Ring Set 4.040 Bore, 1/16 1/16 3/16
      $156.99
      Diamond
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      4.040 Bore Size, 1/16 Plasma Moly Top Ring, 1/16 Taper Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    2. DRP-09034040 PART NUMBER
      09034040 Diamond Pro Select Piston Ring Set 4.040 Bore, 1/16 1/16 3/16
      09034040 Diamond Pro Select Piston Ring Set 4.040 Bore, 1/16 1/16 3/16
      $156.99
      Diamond
      Add to Wish List
      4.040 Bore Size, 1/16 Plasma Moly Top Ring, 1/16 Taper Face 2nd Ring, 3/16 Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    3. DRP-09064040 PART NUMBER
      09064040 Diamond Pro Select Piston Rings 4.040 Bore, 1.5mm 1.5mm 3.0mm
      09064040 Diamond Pro Select Piston Rings 4.040 Bore, 1.5mm 1.5mm 3.0mm
      $233.99
      Diamond
      Add to Wish List
      4.040 Bore Size, 1.5mm Plasma Moly Top Ring, 1.5mm Taper Face 2nd Ring, 3.0mm Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    4. DRP-09084040 PART NUMBER
      09084040 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3.0mm
      09084040 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3.0mm
      $277.99
      Diamond
      Add to Wish List
      4.040 Bore Size, .043 Plasma Moly Top Ring, .043 Taper Face 2nd Ring, 3.0mm Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    5. DRP-09194040 PART NUMBER
      09194040 Diamond Pro Select Piston Rings 4.040 Bore, 1/16 1/16 3/16
      09194040 Diamond Pro Select Piston Rings 4.040 Bore, 1/16 1/16 3/16
      $323.25
      Diamond
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      4.040 Bore Size, 1/16 Stainless Steel W/ C-23 PVD Face Coating Top Ring, 1/16 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    6. DRP-09204040-R1 PART NUMBER
      0920404-R10 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3.0mm
      09204040-R1 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3.0mm
      $329.99
      Diamond
      Add to Wish List
      4.040 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, .043 Napier Face 2nd Ring, 3.0mm Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    7. DRP-09234040 PART NUMBER
      09234040 Diamond Pro Select Piston Rings 4.040 Bore, .043 1/16 3/16
      09234040 Diamond Pro Select Piston Rings 4.040 Bore, .043 1/16 3/16
      $329.99
      Diamond
      Add to Wish List
      4.040 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, 1/16 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    8. DRP-09244040 PART NUMBER
      09244040 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3/16
      09244040 Diamond Pro Select Piston Rings 4.040 Bore, .043 .043 3/16
      $329.99
      Diamond
      Add to Wish List
      4.040 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, .043 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    9. CP-RS1GNHD-4040-0 PART NUMBER
      RS1GNHD
      CP Bullet Nitrided Steel Piston Ring Set 4.040 Bore RS1GNHD4040-0
      $26.00
      CP
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      CP Bullet Pistons, Piston Rings, 4.040+0 Bore, Pre Fit, 1.5 1.5 3.0mm Ring Pack, 1 Cylinder Learn More
    10. MAH-4040MS-15D PART NUMBER
      Mahle Performance Piston Ring Set 4040MS-15D
      Mahle Performance Piston Ring Set 4040MS-15D
      $158.86
      Mahle
      Add to Wish List
      4.040 Bore, Drop-in, 1.5 1.5 3mm Ring Pak, Std Tension Oil Rings Learn More

    Products (91-100 of 112)

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    1. Bore Size
      4.040
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    Part Types
    1. Piston Ring 111 items
    Brands
    1. CP 2 items
    2. Diamond 11 items
    3. Hastings 8 items
    4. JE 8 items
    5. Mahle 8 items
    6. Mahle Original (Perfect Circle) 2 items
    7. Manley 6 items
    8. Total Seal 67 items
    Price
    Bore Size
    1. 100.00 mm 1 item
    2. 2.854 1 item
    3. 2.894 2 items
    4. 3.110 1 item
    5. 3.208 1 item
    6. 3.209 1 item
    7. 3.228" 2 items
    8. 3.248 1 item
    9. 3.268 2 items
    10. 3.307 4 items
    11. 3.327 4 items
    12. 3.346 2 items
    13. 3.347 1 item
    14. 3.366 1 item
    15. 3.385 4 items
    16. 3.386 3 items
    17. 3.395 1 item
    18. 3.405 5 items
    19. 3.406 1 item
    20. 3.425 3 items
    21. 3.426 1 item
    22. 3.445 4 items
    23. 3.448 1 item
    24. 3.465 3 items
    25. 3.484 1 item
    26. 3.505 1 item
    27. 3.551 1 item
    28. 3.552 11 items
    29. 3.562 2 items
    30. 3.563 2 items
    31. 3.570 1 item
    32. 3.571 2 items
    33. 3.572 10 items
    34. 3.581 2 items
    35. 3.582 8 items
    36. 3.622 1 item
    37. 3.630 3 items
    38. 3.632(92.25mm) 1 item
    39. 3.635 1 item
    40. 3.640 2 items
    41. 3.642 2 items
    42. 3.642(92.50mm) 2 items
    43. 3.650 2 items
    44. 3.652 1 item
    45. 3.652(92.75mm) 2 items
    46. 3.660 1 item
    47. 3.662 4 items
    48. 3.662(93mm) 2 items
    49. 3.667 1 item
    50. 3.670 1 item
    51. 3.672 1 item
    52. 3.681 3 items
    53. 3.700 6 items
    54. 3.740 1 item
    55. 3.760 1 item
    56. 3.766 9 items
    57. 3.770 7 items
    58. 3.776 8 items
    59. 3.780 14 items
    60. 3.785 2 items
    61. 3.786 2 items
    62. 3.790 3 items
    63. 3.795 2 items
    64. 3.796 8 items
    65. 3.799 2 items
    66. 3.800 16 items
    67. 3.805 6 items
    68. 3.810 12 items
    69. 3.815 3 items
    70. 3.820 15 items
    71. 3.830 8 items
    72. 3.840 11 items
    73. 3.858 1 item
    74. 3.875 1 item
    75. 3.878 1 item
    76. 3.898 10 items
    77. 3.900 1 item
    78. 3.905 12 items
    79. 3.908 4 items
    80. 3.910 1 item
    81. 3.915 1 item
    82. 3.917 6 items
    83. 3.918 3 items
    84. 3.922 2 items
    85. 3.927 4 items
    86. 3.928 1 item
    87. 3.935 1 item
    88. 3.937 9 items
    89. 3.938 2 items
    90. 3.940 2 items
    91. 3.947 3 items
    92. 3.948 1 item
    93. 3.950 1 item
    94. 3.957 1 item
    95. 4.000 64 items
    96. 4.001 2 items
    97. 4.005 7 items
    98. 4.010 20 items
    99. 4.020 38 items
    100. 4.025 1 item
    101. 4.030 131 items
    102. 4.035 9 items
    103. 4.040 112 items
    104. 4.045 4 items
    105. 4.050 10 items
    106. 4.055 6 items
    107. 4.060 108 items
    108. 4.065 14 items
    109. 4.070 29 items
    110. 4.075 5 items
    111. 4.080 41 items
    112. 4.085 3 items
    113. 4.090 18 items
    114. 4.095 6 items
    115. 4.100 16 items
    116. 4.105 2 items
    117. 4.110 2 items
    118. 4.115 1 item
    119. 4.120 4 items
    120. 4.125 95 items
    121. 4.130 34 items
    122. 4.135 55 items
    123. 4.137 1 item
    124. 4.140 11 items
    125. 4.145 46 items
    126. 4.150 13 items
    127. 4.155 117 items
    128. 4.160 16 items
    129. 4.165 84 items
    130. 4.170 8 items
    131. 4.175 9 items
    132. 4.180 5 items
    133. 4.185 70 items
    134. 4.190 8 items
    135. 4.195 2 items
    136. 4.200 2 items
    137. 4.205 3 items
    138. 4.210 1 item
    139. 4.245 1 item
    140. 4.250 26 items
    141. 4.255 1 item
    142. 4.260 1 item
    143. 4.263 1 item
    144. 4.265 1 item
    145. 4.270 5 items
    146. 4.280 37 items
    147. 4.290 10 items
    148. 4.295 1 item
    149. 4.310 42 items
    150. 4.320 14 items
    151. 4.330 1 item
    152. 4.350 25 items
    153. 4.360 9 items
    154. 4.370 1 item
    155. 4.375 12 items
    156. 4.380 19 items
    157. 4.390 11 items
    158. 4.400 8 items
    159. 4.420 8 items
    160. 4.440 22 items
    161. 4.466 1 item
    162. 4.470 11 items
    163. 4.475 1 item
    164. 4.496 1 item
    165. 4.500 56 items
    166. 4.530 43 items
    167. 4.560 36 items
    168. 4.562 1 item
    169. 4.570 1 item
    170. 4.580 1 item
    171. 4.590 1 item
    172. 4.600 57 items
    173. 4.605 2 items
    174. 4.610 15 items
    175. 4.615 1 item
    176. 4.620 1 item
    177. 4.625 26 items
    178. 4.630 3 items
    179. 4.875 1 item
    180. 5.000 1 item
    181. 81.00mm 2 items
    182. 81.25mm 1 item
    183. 81.50 mm 2 items
    184. 82.00mm 2 items
    185. 82.50 mm 1 item
    186. 83.00mm 1 item
    187. 83.50mm 1 item
    188. 85.00mm 1 item
    189. 85.50mm 1 item
    190. 86.00mm 1 item
    191. 86.50mm 1 item
    192. 87.00mm 2 items
    193. 87.25mm 1 item
    194. 87.50mm 2 items
    195. 87.60mm 1 item
    196. 88.00mm 2 items
    197. 89.00mm 1 item
    198. 92.00mm 1 item
    199. 92.30mm 1 item
    200. 92.38mm 1 item
    201. 92.50mm 1 item
    202. 92.76mm 1 item
    203. 93.00mm 1 item
    204. 94.00mm 2 items
    205. 95.50mm 1 item
    206. 96.00 mm 1 item
    207. 99.50 mm 1 item
    208. 99.75mm 1 item
    Oil Ring
    1. 1/8" 4 items
    2. 2.0mm 4 items
    3. 3.0mm 44 items
    4. 3/16" 60 items
    Ring Fitment
    1. File Fit 86 items
    2. Pre Fit 26 items
    Ring Series
    1. AP Steel Gapless 2nd 1 item
    2. AP Steel Gapless Top 2 items
    3. AP Steel Top 8 items
    4. Claimer Race Low Tension 1 item
    5. Classic Moly Race Gold Power Low Tension 2 items
    6. Classic Race 9 items
    7. Classic Race Low Tension 3 items
    8. Classic Race Low Tenstion 3 items
    9. Classis AP Steel Top 8 items
    10. Ductile Iron 10 items
    11. Ductile Iron Low Tension 2 items
    12. Gapless AP Steel Top 1 item
    13. GN Steel Top 3 items
    14. Hardened Nitrous Series 1 item
    15. Hardened Nitrous Series Low Tension 1 item
    16. HV385 Steel 1 item
    17. Maxseal Gapless Top 6 items
    18. Maxseal Gapless Top Gold Power Low Tension 2 items
    19. Moly Original 1 item
    20. Plasma-Moly Ductile 4 items
    21. Plasma-Moly Ductile Ultra Low Tension 1 item
    22. Premium Ductile 4 items
    23. Premium Ductile Low Tension 2 items
    24. Premium Race Series 1 item
    25. Premium Race Series Low Tension 4 items
    26. Sportsman Series 1 item
    27. Steel Moly 1 item
    28. TNT Gapless 2nd 1 item
    29. TNT Gapless Top 2 items
    30. TS1 Gapless 2nd 6 items
    31. TS1 Gapless 2nd Low Tension 3 items
    32. Classic Race Gas Ported 10 items
    33. AP Steel Gas Ported 4 items
    34. Max Seal Gapless Top Gas Ported 2 items
    Second Ring
    1. .9mm 2 items
    2. 0.043" 17 items
    3. 1.0mm 3 items
    4. 1.2mm 2 items
    5. 1.5mm 23 items
    6. 1/16" 51 items
    7. 5/64" 14 items
    Top Ring
    1. .9mm 2 items
    2. 0.043" 20 items
    3. 1.0mm 3 items
    4. 1.2mm 6 items
    5. 1.5mm 19 items
    6. 1/16" 48 items
    7. 5/64" 14 items
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