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2003 KTM 50SX Pro Jr. Aftermarket Parts

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94 Results

Exact Fit
New

Twin Air
Air Filter

$15.99
Sale
Save 11%
5 out of 5 stars (517) reviews
Exact Fit

All Balls
Rear Wheel Bearing Kit

$15.17
Sale
Save 10%
4.5 out of 5 stars (191) reviews
Video Available
Exact Fit

All Balls
Front Wheel Bearing Kit

$8.53
Sale
Save 10%
4.5 out of 5 stars (186) reviews
Video Available
Exact Fit

Dunlop
Tire Combo

$97.00
Sale
Save 12%
4.5 out of 5 stars (137) reviews
Exact Fit

EBC
X Series Carbon Brake Pads

$29.88
Sale
Save 5%
4.5 out of 5 stars (79) reviews
Exact Fit

FilGuard
Pre-Oiled Premium Dual Stage Air Filter

$7.99
Sale
Save 13%
4 out of 5 stars (104) reviews
Exact Fit

Motion Pro
Throttle Cable

$11.99
4 out of 5 stars (173) reviews
Exact Fit

All Balls
Fork Seal And Wiper Kit

$32.35
Sale
Save 10%
4.5 out of 5 stars (218) reviews
Exact Fit
Colors for Flo Motorsports Pro Series Foot Pegs
+3 more

Flo Motorsports
Pro Series Foot Pegs

$167.95
4.5 out of 5 stars (58) reviews
Exact Fit
Colors for Turner Performance Products 7075 Billet Aluminum Footpegs

Turner Performance Products
7075 Billet Aluminum Footpegs

$84.99
Sale
Save 20%
4.5 out of 5 stars (9) reviews
Exact Fit

FMF
2-Stroke Silencer Packing

$9.99
Sale
Save 9%
5 out of 5 stars (98) reviews
Exact Fit

Vertex
Top End Gasket Kit

$12.92
Sale
Save 10%
5 out of 5 stars (15) reviews
Exact Fit

All Balls
Brake Master Cylinder Rebuild Kit

$21.54
Sale
Save 10%
4.5 out of 5 stars (77) reviews
Video Available
Exact Fit
New

Vertex
Complete Gasket Kit With Seals

$38.48
Sale
Save 10%
4 out of 5 stars (29) reviews
Exact Fit

Wiseco
Piston Kit - 2-Stroke

$131.02
Sale
Save 18%
5 out of 5 stars (247) reviews
Exact Fit
New

Wiseco
2-Stroke Piston

$92.71
Sale
Save 17%
4.5 out of 5 stars (255) reviews
Exact Fit

Vertex
Complete Gasket Kit

$23.73
Sale
Save 10%
5 out of 5 stars (7) reviews
Exact Fit

Vertex
Water Pump Rebuild Kit

$44.79
Sale
Save 10%
4 out of 5 stars (11) reviews
Exact Fit

All Balls
Throttle Cable

$8.96
Sale
Save 10%
3.5 out of 5 stars (42) reviews
Video Available
Exact Fit

Dunlop
Geomax MX34 Rear Tire

$49.99
Sale
Save 11%
4.5 out of 5 stars (8) reviews
Exact Fit

HOT RODS
Water Pump Repair Kit

$59.36
Sale
Save 10%
4.5 out of 5 stars (68) reviews
Video Available
Exact Fit

Renthal
Sintered Brake Pads

$41.99
Sale
Save 11%
4.5 out of 5 stars (69) reviews
Video Available
Exact Fit

Dunlop
Geomax MX33 Rear Tire

$47.99
Sale
Save 9%
5 out of 5 stars (135) reviews
Video Available
Exact Fit
New

All Balls
Front Caliper Rebuild Kit

$23.74
Sale
Save 10%
4 out of 5 stars (24) reviews
Video Available
Exact Fit

Kenda
Washougal II K786 Rear Tire

$36.99
Sale
Save 19%
4.5 out of 5 stars (27) reviews
Exact Fit

Pivot Works
Wheel Bearing Kit

$16.26
Sale
Save 20%
4.5 out of 5 stars (93) reviews
Video Available
Exact Fit

Dunlop
Geomax MX34 Front Tire

$49.99
Sale
Save 11%
5 out of 5 stars (1) review
Exact Fit

Artrax
TG5 Front Tire

$27.99
Sale
Save 38%
4.5 out of 5 stars (46) reviews
Exact Fit

FilGuard
Premium Dual Stage Air Filter

$7.99
Sale
Save 13%
4.5 out of 5 stars (33) reviews
Exact Fit

Wiseco
Replacement Piston Ring Set

$21.15
Sale
Save 17%
3.5 out of 5 stars (21) reviews
Exact Fit
New

Cometic
Top End Gasket Kit

$46.95
4 out of 5 stars (246) reviews
Exact Fit
New

Pro Circuit
R 304 Shorty Silencer - 2-Stroke

$154.99
Sale
Save 10%
4.5 out of 5 stars (83) reviews
Exact Fit
Colors for Turner Performance Products Billet Aluminum Footpegs
+2 more

Turner Performance Products
Billet Aluminum Footpegs

$79.99
Sale
Save 16%
4.5 out of 5 stars (152) reviews
Video Available
Exact Fit

Michelin
Starcross 5 Mini Tire

$48.99
Sale
Save 30%
5 out of 5 stars (16) reviews
Exact Fit

Pirelli
Scorpion MX32 Mid Soft Rear Tire

$45.99
Sale
Save 22%
5 out of 5 stars (43) reviews
Video Available
Exact Fit

Wiseco
Needle Bearing

$20.10
Sale
Save 14%
4.5 out of 5 stars (45) reviews
Exact Fit

Vertex
Oil Seal Kit

$16.12
Sale
Save 10%
5 out of 5 stars (2) reviews
Exact Fit

Kenda
Washougal II K775 Front Tire

$37.99
Sale
Save 13%
5 out of 5 stars (16) reviews
Exact Fit

BikeMaster
Brake Shoes

$12.83
Sale
Save 10%
4 out of 5 stars (11) reviews
Exact Fit

Vertex
2-Stroke Piston

$71.36
Sale
Save 15%
4.5 out of 5 stars (166) reviews
Video Available
Exact Fit

Dunlop
Geomax MX53 Front Tire

$48.99
Sale
Save 18%
5 out of 5 stars (16) reviews
Exact Fit

Dunlop
Geomax MX53 Rear Tire

$43.99
Sale
Save 19%
5 out of 5 stars (40) reviews
Exact Fit

Boyesen
Dual Stage Power Reeds

$27.50
Sale
Save 5%
5 out of 5 stars (74) reviews
Exact Fit

DRC
Wide Footpegs

$54.95
4 out of 5 stars (5) reviews
Exact Fit

All Balls
Fork Seal Kit

$15.58
Sale
Save 10%
4 out of 5 stars (27) reviews
Exact Fit

Wiseco
Gasket Kit - Top End

$29.87
Sale
Save 20%
4 out of 5 stars (11) reviews
Exact Fit

FilGuard
Buy One Get One Half Price Premium Air Filters

$11.98
Sale
Save 33%
5 out of 5 stars (22) reviews
Exact Fit

Pirelli
Scorpion MX32 Mid Soft Front Tire

$41.99
Sale
Save 16%
5 out of 5 stars (17) reviews
Video Available
Exact Fit

Dunlop
Geomax MX14 Rear Tire

$48.99
Sale
Save 15%
4.5 out of 5 stars (4) reviews
Exact Fit

IMS
Pro Series 4 Motorcycle Footpegs

$118.95
4.5 out of 5 stars (89) reviews
Exact Fit

Mika Metals
Front Sprocket

$24.99
Sale
Save 14%
4.5 out of 5 stars (14) reviews
Exact Fit
Colors for ASV F4 Series Brake Lever

ASV
F4 Series Brake Lever

$95.00
4 out of 5 stars (17) reviews
Exact Fit

All Balls
Crank Shaft Bearing Kit

$60.99
Sale
Save 10%
5 out of 5 stars (5) reviews
Video Available
Exact Fit
New

DRC
Ultra Wide Footpegs

$57.95
3 out of 5 stars (1) review
Exact Fit

Maxxis
Maxxcross SI Rear Tire

$48.99
Sale
Save 34%
4.5 out of 5 stars (35) reviews
Video Available
Exact Fit

Kenda
MX Tire Combo

$75.00
Sale
Save 18%
5 out of 5 stars (5) reviews
Exact Fit

Dunlop
Geomax MX12 Rear Tire

$46.99
Sale
Save 6%
5 out of 5 stars (11) reviews
Exact Fit

FMF
Powercore 2 Silencer - 2-Stroke

$179.99
Sale
Save 10%
4.5 out of 5 stars (72) reviews
Exact Fit

Dunlop
Mini Tire Combo

$85.00
Sale
Save 18%
5 out of 5 stars (52) reviews
Exact Fit
Colors for Guts Racing Hardcore Gripper Seat Cover

Guts Racing
Hardcore Gripper Seat Cover

$69.99
3 out of 5 stars (8) reviews

2003 KTM 50SX Pro Jr. Aftermarket Parts

At MotoSport you'll find all the 2003 KTM 50SX Pro Jr. aftermarket parts you need to make your next ride your best ride. We aim to please and suit a wide variety of bikes and riding styles, as well. We carry a large selection of dirt bike exhausts to give you the option of a race ready system or for more modest engines.

Not only do we carry the 2003 KTM 50SX Pro Jr. aftermarket parts that give your dirt bike a performance boost, we also carry the parts to keep your ride feeling smooth. Sometimes the parts that keep your bike riding its best come directly from the manufacturer. At MotoSport you can also find the OEM dirt bike parts to complete almost any job, from a basic fender bolt to a complete new top end if you prefer to stick with stock.

Finding all the parts and gear you need has never been easier - and shipping your parts and gear is free on orders more than $79! You've got more choices than ever when it comes to where to buy, and we always want to provide the best shopping experience in the industry. If you run into trouble or need help finding specific parts for your 2003 KTM 50SX Pro Jr. give a gearhead a call at 1-888-676-8853 and we'll get you ready to ride.