ENGINE
CYLINDERS AND CYLINDER KITS
  • Ready-to-install, direct bolt-on cylinders require no re-plating and look
  • virtually identical to the OEM cylinders
  • Three kit options to choose from: Standard Bore, Standard Bore
  • High Compression and Big Bore
  • Cylinder kits include matched Vertex pistons to ensure longevity,
  • performance and reduced engine noise
  • Nickel silicon carbide-plated for long life
  • Kits come complete with gaskets, cylinder, piston, rings, pin and clips
  • Big bore cylinders do not require machine work (unless noted)
  • Replacement Vertex piston, rings, clips and pins also available;
  • see pages 823-824
  • Made in the U.S.A.
  • FITS
    COMPRESSION BORE
    SUG.
    FITS
    COMPRESSION BORE
    SUG.
    MODEL
    DESCRIPTION
    RATIO
    (MM) PART #
    RETAIL
    MODEL
    DESCRIPTION
    RATIO
    (MM) PART #
    RETAIL
    HONDA
    HONDA (CONT)
    CRF150R Standard Bore kit
    11.7:1
    66
    0931-0269
    $479.95
    CRF450R/ Standard Bore High Compression kit 14.4:1
    96
    0931-0714
    $569.95
    07-09
    Standard Bore Cylinder (only)
    -
    66
    0931-0163
    229.95
    RX 17-18 + 3mm Big Bore kit
    13.51
    99
    0931-0715
    629.95
    Standard Bore High Compression kit -
    66
    0931-0288
    499.95
    (CONT)
    +3mm Big Bore gasket kit
    -
    -
    0934-6004
    69.95
    Standard Bore gasket kit
    -
    -
    0934-1930
    85.95
    CRF450X Standard Bore Cylinder (only)
    -
    -
    0931-0393
    289.95
    +2mm Big Bore gasket kit
    -
    -
    0934-1697
    85.95
    05-17
    Standard Bore kit
    12.1:1
    96
    0931-0274
    599.95
    CRF150R/ Standard Bore kit
    11.7:1
    66
    0931-0486
    479.95
    + 3mm Big Bore kit
    12.1:1
    99
    0931-0267
    649.95
    RB 12-18 Standard Bore Cylinder (only)
    -
    66
    0931-0163
    229.95
    Standard Bore gasket kit
    -
    -
    0934-1934
    85.95
    +2mm Big Bore, 159cc kit
    11.7:1
    68
    0931-0485
    549.95
    +3mm Big Bore gasket kit
    -
    -
    0934-1928
    85.95
    +2mm Big Bore gasket kit
    -
    -
    0934-1697
    85.95
    HUSQVARNA
    CRF250R Standard Bore Cylinder (only)
    -
    78
    0931-0128
    279.95
    FC 250
    Standard Bore Cylinder (only)
    -
    -
    0931-0716
    349.95
    04-07
    Standard Bore kit
    12.9:1
    78
    0931-0270
    599.95
    16-17
    Standard Bore kit
    14.4:1
    78
    0931-0717
    649.95
    Standard Bore High Compression kit 13.4
    78
    0931-0289
    579.95
    Standard Bore High Compression kit 14.7:1
    78
    0931-0718
    629.95
    Standard Bore gasket kit
    -
    -
    0934-1931
    85.95
    + 3mm Big Bore kit
    14.4:1
    81
    0931-0719
    689.95
    +3mm Big Bore, 269cc kit
    13.0:1
    81
    0931-0118 1
    649.95
    +3mm Big Bore gasket kit
    -
    -
    0934-6005
    99.95
    +3mm Big Bore gasket kit
    -
    -
    0934-1521
    85.95
    FE 250
    Standard Bore kit
    -
    78
    0931-0492
    279.95
    +1mm Big Bore gasket kit
    -
    -
    0934-1698
    85.95
    14-15
    Standard Bore kit
    CRF250R Standard Bore Cylinder (only)
    -
    78
    0931-0128
    279.95
    (uses Vertex #23235)
    13.9:1
    78
    0931-0493
    599.95
    08-09
    Standard Bore kit
    13.0:1
    78
    0931-0271
    559.95
    Standard Bore gasket kit
    -
    -
    0934-3130
    89.95
    Standard Bore High Compression kit -
    -
    0931-0290
    599.95
    +3mm Big Bore, 270cc kit
    13.9:1
    -
    0931-0491
    649.95
    Standard Bore gasket kit
    -
    -
    0934-1931
    85.95
    Big Bore gasket kit
    -
    -
    0934-3131
    95.95
    +3mm Big Bore, 269cc kit
    13.0:1
    81
    0931-0118
    649.95
    FC 350
    Standard Bore Cylinder (only)
    -
    88
    0931-0720
    349.95
    +3mm Big Bore gasket kit
    -
    -
    0934-1521
    85.95
    16-17
    Standard Bore kit
    14.0:1
    88
    0931-0721
    619.95
    +1mm Big Bore gasket kit
    -
    -
    0934-1698
    85.95
    Standard Bore High Compression kit 15.1:1
    88
    0931-0722
    639.95
    CRF250R Standard Bore Cylinder (only)
    -
    76.8
    0931-0392
    269.95
    + 2mm Big Bore kit
    14.0:1
    90
    0931-0723
    639.95
    10-13
    Standard Bore kit
    13.2:1
    76.8
    0931-0338
    559.95
    +2mm Big Bore gasket kit
    -
    -
    0934-6006
    89.95
    Standard Bore gasket kit
    -
    -
    0934-2146
    85.95
    KAWASAKI
    +3.2mm Big Bore, 270cc kit
    13.2:1
    80
    0931-0340
    649.95
    KX85 06-13 Standard Bore Cylinder (only)
    10:19.2:1
    48.5
    0931-0580
    379.95
    +3.2mm Big Bore gasket kit
    -
    -
    0934-2383
    85.95
    Standard Bore Cylinder kit
    10:19.2:1
    48.5
    0931-0594
    499.95
    CRF250R Standard Bore Cylinder (only)
    -
    76.8
    0931-0392
    269.95
    Standard Bore Gasket kit
    -
    -
    0934-4053
    49.95
    14-15
    Standard Bore Cylinder kit
    13.5:1
    76.8
    0931-0583
    559.95
    KX250F
    Standard Bore High Compression kit 14.1:1
    76.8
    0931-0584
    579.95
    04-08
    Standard Bore Cylinder (only)
    -
    77
    0931-0130
    279.95
    Standard Bore gasket kit
    -
    -
    0934-2146
    85.95
    KX250F
    Standard Bore kit
    12.6:1
    77
    0931-0275
    595.95
    +3.2mm Big Bore, 270cc kit
    13.2:1
    80
    0931-0340
    649.95
    04-05
    Standard Bore gasket kit
    -
    -
    0934-1935
    85.95
    +3.2mm Big Bore gasket kit
    -
    -
    0934-2383
    85.95
    KX250F
    Standard Bore kit
    13.5:1
    77
    0931-0276
    559.95
    CRF250R Standard Bore Cylinder (only)
    -
    76.8
    0931-0392
    269.95
    06-08
    Standard Bore gasket kit
    -
    -
    0934-1935
    85.95
    16-17
    Standard Bore kit
    13.5:1
    76.8
    0931-0674
    559.95
    KX250F
    +3mm Big Bore, 269cc kit
    13.2:1
    80
    0931-0120
    649.95
    Standard Bore High Compression kit 14.3:1
    76.8
    0931-0707
    579.95
    04-08
    Big Bore gasket kit
    -
    -
    0934-1525
    85.95
    Standard Bore gasket kit
    -
    -
    0934-2146
    85.95
    KX250F 09 Standard Bore Cylinder (only)
    -
    77
    0931-0398
    259.95
    +3.2mm Big Bore, 270cc kit
    13.2:1
    80
    0931-0340
    649.95
    Standard Bore kit
    13.2:1
    77
    0931-0277
    559.95
    +3.2mm Big Bore gasket kit
    -
    -
    0934-2383
    85.95
    Standard Bore High Compression kit 13.9:1
    77
    0931-0295
    579.95
    CRF250X Standard Bore Cylinder (only)
    -
    78
    0931-0128
    279.95
    +3mm Big Bore, 269cc kit
    13.2:1
    80
    0931-0268
    649.95
    04-17
    Standard Bore kit
    12.9:1
    78
    0931-0270
    599.95
    Standard gasket kit
    -
    -
    0934-1936
    89.95
    Standard Bore High Compression kit 13.4
    78
    0931-0289
    579.95
    +3mm Big Bore gasket kit
    -
    -
    0934-1929
    85.95
    Standard Bore gasket kit
    -
    -
    0934-1931
    85.95
    KX250F 10 Standard Bore Cylinder (only)
    -
    77
    0931-0399
    259.95
    +3mm Big Bore, 269cc kit
    13.0:1
    81
    0931-0118 1
    649.95
    Standard Bore kit
    13.2:1
    77
    0931-0341
    559.95
    +3mm Big Bore gasket kit
    -
    -
    0934-1521
    85.95
    +3mm Big Bore, 269cc kit
    13.2:1
    -
    0931-0421
    649.95
    +1mm Big Bore gasket kit
    -
    -
    0934-1698
    85.95
    KX250F
    Standard Bore Cylinder (only)
    -
    77
    0931-0400
    259.95
    CRF450R Standard Bore Cylinder (only)
    -
    96
    0931-0129
    269.95
    11-14
    Standard Bore kit
    -
    77
    0931-0423
    589.95
    02-08
    Standard Bore kit
    12.1:1
    96
    0931-0272
    482.95
    +3mm Big Bore, 269cc kit
    13.5:1
    80
    0931-0424
    649.95
    Standard Bore High Compression kit 12.5:1
    96
    0931-0291
    599.95
    KX250F
    Standard Bore Cylinder (only)
    -
    77
    0931-0400
    259.95
    +4mm Big Bore, 488cc kit
    12.1:1
    100
    0931-0119
    649.95
    15-16
    Standard Bore Cylinder kit
    13.8:1
    77
    0931-0592
    559.95
    Standard Bore gasket kit
    -
    -
    0934-1932
    85.95
    Big Bore Cylinder kit
    13.8:1
    80
    0931-0602
    649.95
    Big Bore gasket kit
    -
    -
    0934-1522
    85.95
    KX250F 17 Standard Bore Cylinder (only)
    -
    77
    0931-0725
    279.95
    CRF450R Standard Bore kit
    12.0:1
    96
    0931-0273
    589.95
    Standard Bore kit
    13.7:1
    77
    0931-0726
    515.95
    09-12
    Standard Bore Cylinder (only)
    -
    96
    0931-0391
    279.95
    Standard Bore High Compression kit 14.7:1
    77
    0931-0728
    565.95
    Standard Bore gasket kit
    -
    -
    0934-1933
    89.95
    +3mm Big Bore kit (Uses Vertex #24237)13.7:1
    80
    0931-0724
    575.95
    Big Bore gasket kit
    -
    -
    0934-1927
    89.95
    +3mm Big Bore gasket kit
    -
    -
    0934-6007
    85.95
    CRF450R Standard Bore kit
    12.5:1
    96
    0931-0489
    589.95
    KX250F 18 Standard Bore Cylinder (only)
    -
    77
    0931-0725
    279.95
    13-16
    Standard Bore Cylinder (only)
    -
    96
    0931-0391
    279.95
    Standard Bore kit
    13.4:1
    77
    0931-0727
    515.95
    Standard Bore gasket kit
    -
    -
    0934-1933
    89.95
    Standard Bore High Compression kit n/a
    77
    0931-0729
    565.95
    + 3mm Big Bore, 478cc kit
    12.0:1
    99
    0931-0488
    659.95
    +3mm Big Bore kit (Uses Vertex #24237)13.7:1
    80
    0931-0724
    575.95
    Big Bore gasket kit
    -
    -
    0934-1927
    89.95
    +3mm Big Bore gasket kit
    -
    -
    0934-6007
    85.95
    CRF450R/ Standard Bore Cylinder (only)
    -
    96
    0931-0712
    269.95
    KLX400
    Standard Bore Cylinder (only)
    -
    90
    0931-0139
    269.95
    RX 17-18 Standard Bore kit
    13.5:1
    96
    0931-0713
    529.95
    03-04
    Standard Bore kit
    11.3:1
    90
    0931-0283
    559.95
    Standard Bore gasket kit
    -
    -
    0934-6003
    49.95
    CYLINDERS AND CYLINDER KITS continued on next page.
    DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.
    SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION.
    2018 PARTS UNLIMITED OFFROAD