Here are some of our most popular KTM50 Engine Parts. For additional parts, scroll down to see our catalog.
KTM50 Ignition Kit
KTM50 3-Shoe Clutch KTM50 Clutch Basket & Bearing

KTM50 Aftermarket Ignition System Assembly. Made to the same size, spec, performance, color and quality as the standard OEM parts.

Will fit all model KTM50s, years 2002+ and newer (and 2001+ L/C Pro Sr.) Our high quality ignition system is of even better quality than OEM stock parts, which is why we offer a 30-day guarantee on our ignition system.

*NOTE- If you have a 1994-2001 KTM50 with black "Morini Franco" engine, this will not fit. Any tech questions, please send an e-mail or call. This item fits KTM50s from 2001-2010. Kit includes Ignition Coil, Flywheel, and Stator Assembly. These parts are brand new. Guarantee covers replacement/exchange on defective parts.

KTM50 IGNITION KIT
Price: $179.99
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KTM 50 KTM50 Pro Jr/Pro Sr 3-Shoe Aftermarket Clutch Assembly.
Includes: center hub, shoes, spring washers, and clutch bolts. Comes with EXTRA set of QTY-50 USA made spring washers and complete instructions.

Stock clutch specs, will bolt right on to you Martin & Slater or KTM 2001 -2008 Pro Junior or Senior models. This is a brand new clutch, never used.

I am told by many customers that this clutch is hit'in hard and hook'in up! Need tech advice email or call me.

KTM50 3-SHOE CLUTCH
Price: $119.99
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Includes: clutch basket and clutch center roller bearing; comes with complete clutch assembly instructions.

The clutch on all KTM50s need a lot of attention. A new clutch and basket should always be looked at to get maximum power to the ground.

Does your clutch basket have grooves in it from excess clutch wear? Does your basket have wobble on the crankshaft? Or is your factory basket broken from one of the spot welds breaking?

Replace your factory basket with this high quality replacement part.

***IMPORTANT NOTE*** This clutch basket has a 360° weld around the center hole, unlike the standard early model Pro SR and Pro JR that only had spot welds. This makes our clutch basket very strong and reliable under the most extreme racing conditions.

KTM50 CLUTCH BASKET
Price: $79.99
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KTM50 Ignition Coil KTM50 Ignition Stator KTM50 Piston Kit

KTM50 aftermarket ignition coil assembly. Made to the same size, spec, performance, color and quality as the standard OEM part.

Will fit all model KTM50s, years 2002-2008 and newer years (and 2001-2010 L/C pro Sr.)

*NOTE- if you have a older KTM50 with black "Morini Franco" engine this will not fit. Any tech questions please email me or call.

KTM50 IGNITION COIL
Price: $79.99
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KTM50 Aftermarket ignition STATOR assembly. Made the same size, spec, performance, color and quality as the standard OEM parts.

Will fit all models KTM50s, years 2002+ and newer years (and 2001+ L/C pro Sr.)

*NOTE- if you have a older KTM50 with black "Morini Franco" engine this will not fit. Any tech questions please email me or call.

KTM50 STATOR
Price: $89.99
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Made to the same specs, quality, performance and size as the standard OEM piston.

Fits all KTM50s with Liquid cooled engines. WILL NOT FIT ANY AIR-COOLED engines.

Fits KTM 50s from 2001+ 2008 year models. LIQUID COOLED engines ONLY!!!
Kit includes Piston, Ring, Top End Bearing, Pin and Clips. New, never used.

KTM50 PISTON KIT
Price: $63.99
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KTM50 Water Pump Kit KTM50 / KTM65 Water Pump Kit KTM50 Complete Clutch Kit

NEW Aftermarket WATER PUMP kit for liquid cooled KTM 50s '01-'08
Made to the same size, spec, performance, color and quality as the standard OEM parts.

Will fit all model KTM50s LIQUID COOLED years 2001-2008 PRO SR. OR PRO JR.
Includes: ignition cover, water pump cover, impeller, water pump bearings, water pump shaft, water pump seal and flywheel nut.

KTM50 WATER PUMP KIT
Price: $99.99
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NEW Aftermarket WATER PUMP kit for liquid cooled KTM 50s OR KTM65s '01-'08
Made to the same size, spec, performance, color and quality as the standard OEM parts.
Will fit all models KTM50s or KTM65s LIQUID COOLED years 2001 - 2008 PRO SR. OR PRO JR.

Includes:
water pump cover, impeller, water pump bearings, water pump shaft, water pump seal and flywheel nut.

KTM50 / KTM65 WATER PUMP KIT
Price: $79.99
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Made to the same spec, size, performance and quality as the standard clutch basket and springs.
Includes the following:
Clutch Basket with 360 degree weld. Clutch basket roller bearing. Complete 3-shoe clutch assembly with extra spring washer set and complete instructions for set up and maintainace

***IMPORTANT NOTE*** this clutch basket has a 360 degree weld around the center hole. - unlike the standard early model Pro SR and Pro JR that only had spot welds.  This makes our clutch basket very strong and reliable under the most extreme racing conditions.

KTM50 COMPLETE CLUTCH KIT
Price: $179.99
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KTM50 Pro Jr/ Pro Sr L/C Complete Replacement Engine - Retail: $799.99

SALE PRICE: $599.99!

2002- 2008 KTM 50cc Pro Junior / Pro Senior complete replacement engine assembly.

Includes: Ignition System, Kick Start Lever, Reed Block & Intake Manifold Assembly.

KTM50 L/C PRO SR/JR ENGINE
Price: $599.99
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***These engines and short blocks previously have been completely assembled and bench run for under one minute to make sure it is up to standards and within tolerances. All factory KTM50 parts will bolt on to this short block without any modifications. All parts are made to the same spec, size, color, shape, dimensions, performance and quality as stock OEM.

Does your KTM 50 need a bottom end rebuild? Now you can switch it out yourself, without having to pay a motorcycle shop expensive hourly labor rates.

KTM50 Pro Sr / Pro Jr Short Block Assembly
Includes: center cases, crankshaft assembly, crankshaft bearings, primary gear, countershaft, countershaft bearings, flywheel, and flywheel nut. Assembled and ready for final assembly.
KTM50 L/C PRO SR/JR SHORT BLOC
Price: $449.00
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Part Image Part Number Description MSRP Your Price
  Engine Rebuild Kit w/ Piston & Counter Shaft Bearings   $289.99
KTM50 ENG REBUILD W/PISTON&CSB
Price: $289.99
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  Engine Rebuild Kit   $225.99
KTM50 ENG REBUILD KIT
Price: $225.99
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451.30.018.000 Crankshaft Assembly $175.35 $99.99
KTM50 CRANKSHAFT
Price: $99.99
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  Counter Shaft Bearings (Set of 2)   $25.99
KTM50 COUNTERSHAFT BEARING SET
Price: $25.99
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  Crank Shaft Bearings (Set of 2)   $25.99
KTM50 CRANKSHAFT BEARING SET
Price: $25.99
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  Engine Center Case Set   $169.99
KTM50 ENGINE CENTER CASE SET
Price: $169.99
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451.30.005.100c Cylinder $166.46 $132.99
KTM50 CYLINDER
Price: $132.99
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  Cylinder Kit   $199.99
KTM50 L/C CYLINDER KIT
Price: $199.99
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  Intake Manifold $39.99 $21.99
KTM50 INTAKE MANIFOLD
Price: $21.99
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451.30.051.044 Reed Valve Block $83.55 $44.99
KTM50 REED VALVE BLOCK
Price: $44.99
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460.35.055.100 Water Pump Impeller $9.55 $7.99
KTM50 WATER PUMP IMPELLER
Price: $7.99
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451.30.034.000 Top End Bearing $10.83 $7.99
KTM50 TOP END BEARING
Price: $7.99
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  Clutch Bearing   $9.99
KTM50 CLUTCH BEARING
Price: $9.99
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451.30.028.000 Flywheel Nut $3.25 $3.25
KTM50 FLYWHEEL NUT
Price: $3.25
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  Clutch Cover $49.99 $39.99
KTM50 CLUTCH COVER
Price: $39.99
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451.35.052.000 Water Pump Cover $36.97 $29.99
KTM50 WATER PUMP COVER
Price: $29.99
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  Water Pump Bearing Set & Seal $29.99  
KTM50 WATER PUMP BEARINGS&SEAL
Price: $29.99
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  Water Pump Shaft $27.99  
KTM50 WATER PUMP SHAFT
Price: $27.99
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  Water Pump Gasket & Clip $6.99  
KTM50 WATER PUMP GASKET & CLIP
Price: $6.99
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451.30.099.000 Complete Gasket Kit $29.92 $19.99
KTM50 GASKET KIT
Price: $19.99
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451.30.006.100 Cylinder Head $96.72 $76.99
KTM50 CYLINDER HEAD
Price: $76.99
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451.33.052.000 Kickstart Sleeve $26.45 $20.99
KTM50 KICKSTART SLEEVE
Price: $20.99
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451.39.005.000 Flywheel $89.98 $69.99
KTM50 FLYWHEEL
Price: $69.99
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451.32.024.0571 Primary Gear $66.04 $52.99 Currently Out Of Stock, Please Check Back!
451.39.006.000 Kickstart Lever $104.07 $32.99
KTM50 KICKSTART LEVER
Price: $32.99
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510.03.021.000 Kickstart Return Spring $5.47 $3.99
KTM50 KICKSTART RETURN SPRING
Price: $3.99
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451.33.050.000 Kickstart Gear & Shaft $56.57 $49.99
KTM50 KICKSTART GEAR & SHAFT
Price: $49.99
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Seal Kit Engine Seal Kit $61.33 $19.99
KTM50 ENGINE SEAL KIT
Price: $19.99
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19mm carb $129.99 $89.99
KTM50 19MM CARBURETOR
Price: $89.99
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Steering Kit $35.99 $25.99 CURRENTLY OUT OF STOCK; PLEASE CHECK BACK
  Kill Button $19.99 $9.99
KTM50 ENGINE KILL BUTTON
Price: $9.99
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  Clutch Spring Washer Kit $35.99 $29.99
KTM50 SPRING WASHER KIT
Price: $29.99
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