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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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    1. CP-RS1MGNHD4125-0 PART NUMBER
      RS1GNHD
      CP Bullet Nitrided Steel Piston Ring Set 4.125 Bore RS1MGNHD4125-0
      $26.00
      CP
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      CP Bullet Pistons, Piston Rings, 4.125+0 Bore, Pre Fit, 1.5 1.5 3.0mm Ring Pack, 1 Cylinder Learn More
    2. TS-CS1124125 PART NUMBER
      CS9010-5
      CS1124125 Total Seal Classic AP Steel Top Piston Ring Set, 4.125 Bore
      $375.68
      Total Seal
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      Total Seal, AP Steel, Piston Rings, 4.125+5 Bore, File Fit, 1.0mm 1.0mm 2.0mm Ring Pack, 11 LB Low Oil Tension Learn More
    3. MAH-4125MS-15D PART NUMBER
      Mahle Performance Piston Ring Set 4125MS-15D
      Mahle Performance Piston Ring Set 4125MS-15D
      $158.86
      Mahle
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      4.125 Bore, Drop-in, 1.5 1.5 3mm Ring Pak, Std Tension Oil Rings Learn More
    4. MAH-4130MS-1115 PART NUMBER
      Mahle Performance Piston Ring Set 4130MS-1115
      Mahle Performance Piston Ring Set 4130MS-1115
      $189.56
      Mahle
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      4.125+5 Bore, File Fit, 0.043", 1.5mm, 3.0mm Ring Pak, Standard Tension Oil Rings Learn More
    5. DRP-09214125 PART NUMBER
      09214125 Diamond Pro Select Piston Rings 4.125 Bore .043 .043 3.0mm
      09214125 Diamond Pro Select Piston Rings 4.125 Bore .043 .043 3.0mm
      $329.99
      Diamond
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      Fits 4.125 Bore Size, .043 AP Stainless Steel Top Ring, .043 Napier Face 2nd Ring, 3.0mm High Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    6. DRP-09754125 PART NUMBER
      09754125 Diamond Pro Select Piston Rings 4.125 Bore .0354 .0354 2.0mm
      09754125 Diamond Pro Select Piston Rings 4.125 Bore .0354 .0354 2.0mm
      $392.99
      Diamond
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      Fits 4.125 Bore Size, 0.0354 AP Steel Top Ring, 0.0354 Napier 2nd Ring, 2.0mm Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    7. DRP-09874125 PART NUMBER
      09874125 Diamond Pro Select Piston Rings 4.125 Bore 1.0 1.0 3.0mm
      09874125 Diamond Pro Select Piston Rings 4.125 Bore 1.0 1.0 3.0mm
      $222.99
      Diamond
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      Fits 4.125 Bore Size, 1.0mm HV385 Steel Top Ring, 1.0mm Napier 2nd Ring, 3.0mm Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More
    8. TS-MS9010-5 PART NUMBER
      MS9010-35
      Total Seal Max Seal Gapless Top Piston Rings MS9010-5 4.125 Bore File To Fit
      $530.57
      Total Seal
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      Total Seal, Gapless Top, AP Steel, 4.125+5 Bore, File Fit, .043 .043 3.0mm Ring Pak, 11 LB Low Tension Oil Ring, V8 ring set Learn More
    9. TS-CRG2012GP-5 PART NUMBER
      CRG2012-15
      Total Seal Classic Race Gas Ported Piston Ring Set CRG2012GP-5 Bore 4.125
      $346.63
      Total Seal
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      Total Seal, Classic Race Gas Ported, Piston Rings, 4.125 Bore, File Fit, 1.5 1.5 3.0mm, 11 LB Low Tension Oil Ring

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    10. TS-CS1124125GP PART NUMBER
      CS9010-5
      Total Seal Classic AP Steel Top Piston Ring Set, CS1124125GP 4.125 Bore
      $543.32
      Total Seal
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      Total Seal, AP Steel Gas Ported, Piston Rings, 4.125 Bore, Pre Fit, 1.0mm 1.0mm 2.0mm Ring Pack, 11 LB Low Oil Tension

      Learn More

    Products (81-90 of 95)

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    1. Bore Size
      4.125
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    Shopping Options
    Brands
    1. CP 1 item
    2. Diamond 13 items
    3. Hastings 4 items
    4. JE 8 items
    5. Mahle 8 items
    6. Mahle Original (Perfect Circle) 1 item
    7. Manley 6 items
    8. Total Seal 54 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
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    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" 3 items
    2. 2.0mm 7 items
    3. 3.0mm 40 items
    4. 3/16" 45 items
    Ring Fitment
    1. File Fit 83 items
    2. Pre Fit 12 items
    Ring Series
    1. AP Steel Gapless 2nd 1 item
    2. AP Steel Gapless Top 5 items
    3. AP Steel Top 12 items
    4. Classic Moly Race Gold Power Low Tension 1 item
    5. Classic Race 4 items
    6. Classic Race Low Tension 2 items
    7. Classis AP Steel Top 8 items
    8. Ductile Iron 9 items
    9. Ductile Iron Low Tension 2 items
    10. Gapless AP Steel Top 2 items
    11. GN Steel Top 2 items
    12. Hardened Nitrous Series 2 items
    13. Hardened Nitrous Series Low Tension 1 item
    14. HV385 Steel 1 item
    15. Maxseal Gapless Top 4 items
    16. Maxseal Gapless Top Gold Power Low Tension 2 items
    17. Plasma-Moly Ductile 4 items
    18. Plasma-Moly Ductile Ultra Low Tension 1 item
    19. Premium Ductile 2 items
    20. Premium Ductile Low Tension 2 items
    21. Premium Race Series 2 items
    22. Premium Race Series Low Tension 2 items
    23. Sportsman Series 1 item
    24. Standard Tension 1 item
    25. TNT Gapless 2nd 2 items
    26. TNT Gapless Top 1 item
    27. TS1 Gapless 2nd 4 items
    28. TS1 Gapless 2nd Low Tension 1 item
    29. Classic Race Gas Ported 7 items
    30. AP Steel Gas Ported 4 items
    31. Gapless AP Steel Top Gas Ported 3 items
    Second Ring
    1. .9mm 3 items
    2. 0.0354" 1 item
    3. 0.043" 17 items
    4. 1.0mm 5 items
    5. 1.2mm 5 items
    6. 1.5mm 22 items
    7. 1/16" 38 items
    8. 5/64" 4 items
    Top Ring
    1. .9mm 3 items
    2. 0.017" 1 item
    3. 0.0354" 1 item
    4. 0.043" 21 items
    5. 1.0mm 5 items
    6. 1.2mm 9 items
    7. 1.5mm 17 items
    8. 1/16" 34 items
    9. 5/64" 4 items
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