SECTION 7
KB PERFORMANCE
HYPEREUTECTIC PISTON KITS
  • Manufactured from high-strength, T-5, heat-treated,
    • 390 hypereutectic aluminum alloy
  • Allow a tighter fit and longer piston and ring life
  • Diamond-machined pistons are held to plus or minus
    • one gram weight and less than one-half-thousandth-
    inch (.0005”) tolerances from piston to piston
  • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • 0910-0915
  • Replacement piston rings and pin lock rings available separately
    • NOTE: KB pistons can be installed tighter than other pistons. This results in less piston rock and better
    ring seal. Please read instructions included with piston for correct piston clearance.
    NOTE: Due to the thermal conductivity and design of KB pistons,
    special attention is required to the top ring end gap. Please read
    FOR 84-99 80” EVOLUTION BIG TWIN
    instructions furnished with piston for correct ring installation.
    10.5: COMP
    9.6:1 COMP
    8.6:1 COMP
    REPLACEMENT
    NOTE: Each replacement ring PART # denotes rings for two pistons,
    BORE
    PISTON #
    PISTON #
    PISTON #
    RINGS #
    except 84-99 Big Bore kits and 99-06 88” Twin Cam kits, which
    Std. (3.498”)
    DS-751247
    DS-751265
    0910-2016
    DS-750830
    require two sets.
    +.005”
    DS-751248
    DS-751266
    DS-751242
    DS-750867
    +.010”
    DS-751249
    DS-751267
    DS-751243
    DS-750831
    FOR 12-17 103” TWIN CAM AND 07-13 96” TWIN CAM BIG BORE 103” (COATED SKIRTS)
    +.020”
    DS-751250
    DS-751268
    DS-751244
    DS-750832
    BORE
    10.0:1 COMP PISTON #
    REPLACEMENT RINGS #
    +.030”
    DS-751251
    DS-751269
    0910-2017
    DS-750833
    (3.875”) Std.
    0910-0915
    DS-750692
    +.040”
    DS-751252
    0910-2019
    0910-2018
    DS-750834
    +.005”
    0910-0916
    DS-750693
    NOTE: Use lock rings PART #0913-0001 (4-pk.).
    +.010”
    0910-0917
    DS-750694
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    FOR 86-17 XL 883 TO 1200 CONV
    BORE
    (REVERSE DOME) 10.0:1 COMP PISTON #
    REPLACEMENT RINGS #
    FOR 99-06 88” TWIN CAM
    Std. (3.498”)
    DS-751253
    DS-750830
    BORE
    10.6:1 COMP PISTON #
    8.8:1 COMP PISTON #
    REPLACEMENT RINGS #
    +.005”
    DS-751264
    DS-750867
    (3.750”) Std.
    0910-0575
    0910-0578
    DS-750869
    +.010”
    DS-751254
    DS-750831
    +.005”
    DS-751277
    DS-751272
    -
    +.020”
    DS-751255
    DS-750832
    +.010”
    0910-0576
    0910-0579
    0912-0338
    NOTE: Use lock rings PART #0913-0001 (4-pk.).
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    FOR 88-03 XL 1200
    FOR 99-06 95” TWIN CAM BIG BORE
    BORE
    (FLAT TOP) 9.0:1 COMP PISTON #
    REPLACEMENT RINGS #
    BORE
    10.5:1 COMP PISTON #
    9.3:1 COMP PISTON #
    REPLACEMENT RINGS #
    Std. (3.498”)
    DS-751235
    DS-750830
    Std. (3.875”)
    DS-751286
    DS-751281
    DS-750874
    +.005”
    DS-751236
    DS-750867
    +.005”
    DS-751287
    DS-751282
    DS-750875
    +.010”
    DS-751237
    DS-750831
    +.010”
    DS-751288
    0910-2020
    -
    +.020”
    DS-751238
    DS-750832
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    NOTE: Use lock rings PART #0913-0001 (4-pk.).
    NOTE: Will fit XL1100 models if used with XL1200 cylinder heads.
    SUG.
    SUG.
    SUG.
    SUG.
    SUG.
    SUG.
    SUG.
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    P ART  #
    RETAIL
    PISTONS
    PISTONS (CONT)
    PISTONS (CONT)
    PISTONS (CONT)
    PISTONS (CONT)
    REPLACEMENT RINGS
    REPLACEMENT RINGS
    0910-0575
    $252.95
    0910-2018
    $199.95
    DS-751244
    $199.95
    DS-751255
    $209.95
    DS-751281
    $252.95
    (CONT)
    (CONT)
    0910-0576
    252.95
    0910-2019
    209.95
    DS-751247
    209.95
    DS-751264
    209.95
    DS-751282
    252.95
    DS-750693
    $54.95
    DS-750869
    $54.95
    0910-0578
    245.95
    0910-2020
    252.95
    DS-751248
    209.95
    DS-751265
    209.95
    DS-751286
    263.95
    DS-750694
    54.95
    DS-750874
    49.95
    0910-0579
    245.95
    DS-751235
    194.95
    DS-751249
    209.95
    DS-751266
    209.95
    DS-751287
    263.95
    DS-750830
    42.95
    DS-750875
    49.95
    0910-0915
    202.95
    DS-751236
    194.95
    DS-751250
    209.95
    DS-751267
    209.95
    DS-751288
    263.95
    DS-750831
    42.95
    PISTON LOCK RINGS
    0910-0916
    202.95
    DS-751237
    194.95
    DS-751251
    209.95
    DS-751268
    209.95
    REPLACEMENT RINGS
    DS-750832
    42.95
    0913-0001
    5.95
    0910-0917
    202.95
    DS-751238
    194.95
    DS-751252
    209.95
    DS-751269
    209.95
    0912-0338
    47.95
    DS-750833
    42.95
    0913-0002
    5.95
    0910-2016
    199.95
    DS-751242
    199.95
    DS-751253
    209.95
    DS-751272
    245.95
    DS-750692
    54.95
    DS-750834
    42.95
    0910-2017
    199.95
    DS-751243
    199.95
    DS-751254
    209.95
    DS-751277
    252.95
    DS-750867
    42.95
    KB PERFORMANCE FORGED PISTONS
  • Pistons forged from 4032 aluminum alloy
  • Offset pin design for quiet operation
  • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
  • Piston pin lock rings available separately
    • 0910-0939
  • Replacement rings are also available separately
    • 0913-0002
    NOTE: Each replacement ring PART # denotes rings for two pistons, except 99-06 88” Twin Cam kits, which require two sets.
    FOR 12-17 103” TWIN CAM AND 07-13 96” TWIN CAM BIG BORE 103” (COATED SKIRTS)
    FOR 84-99 80” EVOLUTION BIG TWIN
    BORE
    10.5:1 COMP PISTON #
    9.5:1 COMP PISTON #
    REPLACEMENT RINGS #
    BORE
    10.5: COMP PISTON #
    9.5:1 COMP PISTON #
    REPLACEMENT RINGS #
    (3.875”) Std.
    0910-0939
    0910-0937
    DS-750692
    Std. (3.498”)
    0910-0926
    0910-0922
    DS-750830
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    +.005”
    0910-0927
    0910-0923
    DS-750867
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    FOR 99-06 95” TWIN CAM BIG BORE (COATED SKIRTS)
    +.010”
    0910-0928
    0910-0924
    DS-750831
    BORE
    10.5:1 COMP PISTON #
    9.25:1 COMP PISTON #
    REPLACEMENT RINGS #
    +.020”
    0910-0929
    0910-0925
    DS-750832
    (3.875”) Std.
    0910-0935
    0910-0933
    DS-750692
    NOTE: Use lock rings PART #0913-0001 (4-pk.).
    NOTE: Use lock rings PART #0913-0002 (4-pk.).
    FOR 86-17 XL 883 CONVERSION TO 1200 (COATED SKIRTS)
    BORE
    (REVERSE DOME) 9.0:1 COMP PISTON #
    REPLACEMENT RINGS #
    Std. (3.498”)
    0910-0930
    DS-750830
    NOTE: Use lock rings PART #0913-0001 (4-pk.).
    FOR 07-17 96”/103” BORED TO 110 CU. IN.
    FOR 07-17 96”/103” BORED TO 117 CU. IN.
    FOR 12-17 103” TWIN CAM AND 07-13 96” TWIN CAM BIG BORE
    (W/ SCREAMIN’ EAGLE 95CC HEADS) (COATED SKIRTS)
    (W/ SCREAMIN’ EAGLE 95CC HEADS) (COATED SKIRTS)
    103” (W/ SCREAMIN’ EAGLE 95CC HEADS) (COATED SKIRTS)
    BORE
    10.0:1 COMP PISTONS
    BORE
    10.0:1 COMP PISTONS
    BORE
    10.0:1 COMP PISTONS
    (4.00”)
    0910-3973
    (4.125”)
    0910-3976
    (3.875”)
    0910-3970
    +.005”
    0910-3974
    +.005”
    0910-3977
    +.005”
    0910-3971
    +.010”
    0910-3975
    +.010”
    0910-3978
    +.010”
    0910-3972
    P ART  #
    SUG. RETAIL
    P ART  #
    SUG. RETAIL
    P ART  #
    SUG. RETAIL
    P ART  #
    SUG. RETAIL
    P ART  #
    SUG. RETAIL
    P ART  #
    SUG. RETAIL
    PISTONS
    PISTONS (CONT)
    PISTONS (CONT)
    PISTONS (CONT)
    PISTONS (CONT)
    REPLACEMENT RINGS (CONT)
    0910-0922
    $256.95
    0910-0927
    $256.95
    0910-0935
    $275.95
    0910-3972
    $289.95
    0910-3977
    $289.95
    DS-750831
    $42.95
    0910-0923
    256.95
    0910-0928
    256.95
    0910-0937
    275.95
    0910-3973
    289.95
    0910-3978
    289.95
    DS-750832
    42.95
    0910-0924
    256.95
    0910-0929
    256.95
    0910-0939
    275.95
    0910-3974
    289.95
    REPLACEMENT RINGS
    DS-750867
    42.95
    0910-0925
    256.95
    0910-0930
    256.95
    0910-3970
    289.95
    0910-3975
    289.95
    DS-750692
    54.95
    PISTON LOCK RINGS
    0910-0926
    256.95
    0910-0933
    275.95
    0910-3971
    289.95
    0910-3976
    289.95
    DS-750830
    42.95
    0913-0001
    5.95
    0913-0002
    5.95
    DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.
    SEE PAGE 399 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION.
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