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  3. KTM
  4. 2025
  5. 300 SX (EU)
  6. CYLINDER, CYLINDER HEAD
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Part Finder - KTM - 2025 - 300 SX (EU) - CYLINDER, CYLINDER HEAD

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Please note: that parts quantities shown on parts diagrams are the quantity of that part that exists on the bike, Not the quantity that we have in stock. Please click on the parts individually to check stock availability, thank you.
Please note: that pricing shown is individual/single per item pricing only unless otherwise indicated in part description.
Ref Part Number Description Part/Desc
14A44030035020Cylinder base gasketA44030035020Cylinder base gasket
14A44030035025Cylinder base gasketA44030035025Cylinder base gasket
14A44030035030Cylinder base gasketA44030035030Cylinder base gasket
14A44030035040Cylinder base gasketA44030035040Cylinder base gasket
14A44030035050Cylinder base gasketA44030035050Cylinder base gasket
14A44030035070Cylinder base gasketA44030035070Cylinder base gasket
14A44030035080Cylinder base gasketA44030035080Cylinder base gasket
Ref Part Number Description Part, Description # On Img # Cart $ Each Notes
1 A45030338000 cylinder + piston MX 300 2025 A45030338000cylinder + piston MX 300 20251 on diagram x1 1534.80
3 0770107020 O-Ring 107x2 0770107020O-Ring 107x21 on diagram x1 8.20
4 0770078020 O-RING 78,00X2,00 VIT. BLACK 0770078020O-RING 78,00X2,00 VIT. BLACK1 on diagram x1 7.10
5 A45030060000 Combustion chamber insert 300 SX A45030060000Combustion chamber insert 300 SX1 on diagram x1 98.10
6 A45030006100 Cylinder head A45030006100Cylinder head1 on diagram x1 340.80
7 0603061001 CU-seal ring DIN7603-6X10X1 0603061001CU-seal ring DIN7603-6X10X11 on diagram x1 3.00
8 0025060106 HH collar screw M6x10 TX30 0025060106HH collar screw M6x10 TX301 on diagram x1 4.00
9 0770023025 O-ring 23x2,5 Viton 75SH 0770023025O-ring 23x2,5 Viton 75SH1 on diagram x1 6.00
10 56530080000 CU-SEAL RING 8 X 16 X 1 56530080000CU-SEAL RING 8 X 16 X 16 on diagram x6 3.90
11 54830079000 COLLAR SCREW M 8X35 WS=13 54830079000COLLAR SCREW M 8X35 WS=136 on diagram x6 6.90
12 55530044000 Collar nut M10-SW13 ZnNi 55530044000Collar nut M10-SW13 ZnNi4 on diagram x4 6.30
13 0835100300 Stud bolt M10x30 0835100300Stud bolt M10x304 on diagram x4 7.30
14 A44030035020 Cylinder base gasket A44030035020Cylinder base gasket0 on diagram x0 16.30
14 A44030035025 Cylinder base gasket A44030035025Cylinder base gasket0 on diagram x0 16.30
14 A44030035030 Cylinder base gasket A44030035030Cylinder base gasket0 on diagram x0 16.30
14 A44030035040 Cylinder base gasket A44030035040Cylinder base gasket0 on diagram x0 16.30
14 A44030035050 Cylinder base gasket A44030035050Cylinder base gasket0 on diagram x0 16.30
14 A44030035070 Cylinder base gasket A44030035070Cylinder base gasket0 on diagram x0 16.30
14 A44030035080 Cylinder base gasket A44030035080Cylinder base gasket0 on diagram x0 16.30
15 A42030087000 Engine vent hose A42030087000Engine vent hose0 on diagram x0 47.20
22 0025050256 HH COLLAR SCREW M5X25 ISA30 0025050256HH COLLAR SCREW M5X25 ISA306 on diagram x6 4.00
23 A44037007000 exhaust control cover right A44037007000exhaust control cover right1 on diagram x1 65.00
24 A44037006000 Control cover seal, left A44037006000Control cover seal, left2 on diagram x2 13.80
25 0770002226200 X-ring 21.89x2.62 FKM 70 0770002226200X-ring 21.89x2.62 FKM 701 on diagram x1 6.00
26 A44037005000 exhaust control cover left A44037005000exhaust control cover left1 on diagram x1 65.00
27 51005074000 RETAINING PLATE 51005074000RETAINING PLATE2 on diagram x2 5.40
28 0025060356 HH collar screw M6x35 TX30 0025060356HH collar screw M6x35 TX305 on diagram x5 4.00
29 79435047000 Water temperature sensor 79435047000Water temperature sensor1 on diagram x1 61.40
30 A45041075000 Crank case pressure sensor A45041075000Crank case pressure sensor1 on diagram x1 237.70
31 A44041087000 Pressure sensor flange A44041087000Pressure sensor flange1 on diagram x1 38.10
32 0017060206 SCREW F. PLASTIC K60X20 AL SW6 0017060206SCREW F. PLASTIC K60X20 AL SW61 on diagram x1 4.00
33 00050210706 VARIABLE ONE-EAR CLAMP 21,0MM 00050210706VARIABLE ONE-EAR CLAMP 21,0MM1 on diagram x1 6.00
34 A45041075060 Pressure sensor cover A45041075060Pressure sensor cover1 on diagram x1 16.60
99 A44030097000 Sealkit cylinder MX 250/300 A44030097000Sealkit cylinder MX 250/3000 on diagram x0 106.00

A45030338000 - cylinder + piston MX 300 2025

  • Reference

    1

  • Part Number

    A45030338000

  • Description

    cylinder + piston MX 300 2025

  • Price

    1534.80

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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0770107020 - O-Ring 107x2

  • Reference

    3

  • Part Number

    0770107020

  • Description

    O-Ring 107x2

  • Price

    8.20

  • Qty On Diagram

    1

  • Stock in Store

    4

  • Qty In Cart

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0770078020 - O-RING 78,00X2,00 VIT. BLACK

  • Reference

    4

  • Part Number

    0770078020

  • Description

    O-RING 78,00X2,00 VIT. BLACK

  • Price

    7.10

  • Qty On Diagram

    1

  • Stock in Store

    3

  • Qty In Cart

  • basket not updated, press update to apply change
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A45030060000 - Combustion chamber insert 300 SX

  • Reference

    5

  • Part Number

    A45030060000

  • Description

    Combustion chamber insert 300 SX

  • Price

    98.10

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A45030006100 - Cylinder head

  • Reference

    6

  • Part Number

    A45030006100

  • Description

    Cylinder head

  • Price

    340.80

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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0603061001 - CU-seal ring DIN7603-6X10X1

  • Reference

    7

  • Part Number

    0603061001

  • Description

    CU-seal ring DIN7603-6X10X1

  • Price

    3.00

  • Qty On Diagram

    1

  • Stock in Store

    15

  • Qty In Cart

  • basket not updated, press update to apply change
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0025060106 - HH collar screw M6x10 TX30

  • Reference

    8

  • Part Number

    0025060106

  • Description

    HH collar screw M6x10 TX30

  • Price

    4.00

  • Qty On Diagram

    1

  • Stock in Store

    10

  • Qty In Cart

  • basket not updated, press update to apply change
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0770023025 - O-ring 23x2,5 Viton 75SH

  • Reference

    9

  • Part Number

    0770023025

  • Description

    O-ring 23x2,5 Viton 75SH

  • Price

    6.00

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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56530080000 - CU-SEAL RING 8 X 16 X 1

  • Reference

    10

  • Part Number

    56530080000

  • Description

    CU-SEAL RING 8 X 16 X 1

  • Price

    3.90

  • Qty On Diagram

    6

  • Stock in Store

    24

  • Qty In Cart

  • basket not updated, press update to apply change
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54830079000 - COLLAR SCREW M 8X35 WS=13

  • Reference

    11

  • Part Number

    54830079000

  • Description

    COLLAR SCREW M 8X35 WS=13

  • Price

    6.90

  • Qty On Diagram

    6

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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55530044000 - Collar nut M10-SW13 ZnNi

  • Reference

    12

  • Part Number

    55530044000

  • Description

    Collar nut M10-SW13 ZnNi

  • Price

    6.30

  • Qty On Diagram

    4

  • Stock in Store

    15

  • Qty In Cart

  • basket not updated, press update to apply change
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0835100300 - Stud bolt M10x30

  • Reference

    13

  • Part Number

    0835100300

  • Description

    Stud bolt M10x30

  • Price

    7.30

  • Qty On Diagram

    4

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035020 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035020

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035025 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035025

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035030 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035030

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035040 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035040

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035050 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035050

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035070 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035070

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030035080 - Cylinder base gasket

  • Reference

    14

  • Part Number

    A44030035080

  • Description

    Cylinder base gasket

  • Price

    16.30

  • Qty On Diagram

    0

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A42030087000 - Engine vent hose

  • Reference

    15

  • Part Number

    A42030087000

  • Description

    Engine vent hose

  • Price

    47.20

  • Qty On Diagram

    0

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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0025050256 - HH COLLAR SCREW M5X25 ISA30

  • Reference

    22

  • Part Number

    0025050256

  • Description

    HH COLLAR SCREW M5X25 ISA30

  • Price

    4.00

  • Qty On Diagram

    6

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44037007000 - exhaust control cover right

  • Reference

    23

  • Part Number

    A44037007000

  • Description

    exhaust control cover right

  • Price

    65.00

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44037006000 - Control cover seal, left

  • Reference

    24

  • Part Number

    A44037006000

  • Description

    Control cover seal, left

  • Price

    13.80

  • Qty On Diagram

    2

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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0770002226200 - X-ring 21.89x2.62 FKM 70

  • Reference

    25

  • Part Number

    0770002226200

  • Description

    X-ring 21.89x2.62 FKM 70

  • Price

    6.00

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44037005000 - exhaust control cover left

  • Reference

    26

  • Part Number

    A44037005000

  • Description

    exhaust control cover left

  • Price

    65.00

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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51005074000 - RETAINING PLATE

  • Reference

    27

  • Part Number

    51005074000

  • Description

    RETAINING PLATE

  • Price

    5.40

  • Qty On Diagram

    2

  • Stock in Store

    1

  • Qty In Cart

  • basket not updated, press update to apply change
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0025060356 - HH collar screw M6x35 TX30

  • Reference

    28

  • Part Number

    0025060356

  • Description

    HH collar screw M6x35 TX30

  • Price

    4.00

  • Qty On Diagram

    5

  • Stock in Store

    5

  • Qty In Cart

  • basket not updated, press update to apply change
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79435047000 - Water temperature sensor

  • Reference

    29

  • Part Number

    79435047000

  • Description

    Water temperature sensor

  • Price

    61.40

  • Qty On Diagram

    1

  • Stock in Store

    1

  • Qty In Cart

  • basket not updated, press update to apply change
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A45041075000 - Crank case pressure sensor

  • Reference

    30

  • Part Number

    A45041075000

  • Description

    Crank case pressure sensor

  • Price

    237.70

  • Qty On Diagram

    1

  • Stock in Store

    1

  • Qty In Cart

  • basket not updated, press update to apply change
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A44041087000 - Pressure sensor flange

  • Reference

    31

  • Part Number

    A44041087000

  • Description

    Pressure sensor flange

  • Price

    38.10

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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0017060206 - SCREW F. PLASTIC K60X20 AL SW6

  • Reference

    32

  • Part Number

    0017060206

  • Description

    SCREW F. PLASTIC K60X20 AL SW6

  • Price

    4.00

  • Qty On Diagram

    1

  • Stock in Store

    209

  • Qty In Cart

  • basket not updated, press update to apply change
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00050210706 - VARIABLE ONE-EAR CLAMP 21,0MM

  • Reference

    33

  • Part Number

    00050210706

  • Description

    VARIABLE ONE-EAR CLAMP 21,0MM

  • Price

    6.00

  • Qty On Diagram

    1

  • Stock in Store

    2

  • Qty In Cart

  • basket not updated, press update to apply change
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A45041075060 - Pressure sensor cover

  • Reference

    34

  • Part Number

    A45041075060

  • Description

    Pressure sensor cover

  • Price

    16.60

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

  • basket not updated, press update to apply change
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A44030097000 - Sealkit cylinder MX 250/300

  • Reference

    99

  • Part Number

    A44030097000

  • Description

    Sealkit cylinder MX 250/300

  • Price

    106.00

  • Qty On Diagram

    0

  • Stock in Store

    1

  • Qty In Cart

  • basket not updated, press update to apply change
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