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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. DRP-09453937 PART NUMBER
    2. CP-RS1MGNHD3937 PART NUMBER

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    1. Bore Size
      3.937
    2. Ring Series
      GN Steel Top
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    Brands
    1. CP 1 item
    2. Diamond 1 item
    Bore Size
    1. 2.854 1 item
    2. 2.894 2 items
    3. 3.110 1 item
    4. 3.208 1 item
    5. 3.228" 2 items
    6. 3.248 1 item
    7. 3.268 1 item
    8. 3.307 1 item
    9. 3.327 2 items
    10. 3.346 1 item
    11. 3.366 1 item
    12. 3.385 1 item
    13. 3.386 1 item
    14. 3.395 1 item
    15. 3.405 3 items
    16. 3.406 1 item
    17. 3.425 1 item
    18. 3.426 1 item
    19. 3.445 2 items
    20. 3.465 1 item
    21. 3.552 1 item
    22. 3.562 1 item
    23. 3.572 1 item
    24. 3.632(92.25mm) 1 item
    25. 3.642(92.50mm) 1 item
    26. 3.652(92.75mm) 1 item
    27. 3.662(93mm) 1 item
    28. 3.740 1 item
    29. 3.780 2 items
    30. 3.799 2 items
    31. 3.800 2 items
    32. 3.858 1 item
    33. 3.905 1 item
    34. 3.917 1 item
    35. 3.927 1 item
    36. 3.937 2 items
    37. 4.000 1 item
    38. 4.005 2 items
    39. 4.010 1 item
    40. 4.030 4 items
    41. 4.040 3 items
    42. 4.060 2 items
    43. 4.065 2 items
    44. 4.070 4 items
    45. 4.075 1 item
    46. 4.080 2 items
    47. 4.090 1 item
    48. 4.125 2 items
    49. 4.130 1 item
    50. 4.135 2 items
    51. 4.145 1 item
    52. 4.155 2 items
    53. 4.165 2 items
    54. 4.185 1 item
    Price
    Ring Fitment
    1. File Fit 1 item
    2. Pre Fit 1 item
    Ring Series
    1. AP Steel Top 3 items
    2. Ductile Iron 3 items
    3. GN Steel Top 2 items
    4. Plasma-Moly Ductile 1 item
    Second Ring
    1. 1.2mm 1 item
    2. 1.5mm 1 item
    Top Ring
    1. 1.2mm 1 item
    2. 1.5mm 1 item
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