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We have chains, sprockets, belts and axles from Factory Spec that fit many ATVs. Product pages have info about fitment in the details tab or you can use the ride filter on our homepage to help to find the parts for your specific machine.

Items 1 to 30 of 449 total

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  1. Heavy Duty, X-Ring Chain, 520 Pitch - FS-520X Heavy Duty, X-Ring Chain, 520 Pitch - FS-520X

    Factory Spec Heavy Duty, X-Ring Chain, 520 Pitch (Sold Per Pin) - FS-520X

    Factory Spec brand
    Designed to meet the demands of today's high-performance machines
    Reduces friction and power loss up to 40% over basic O-ring chains
    Tensile strength of 8200 pounds
    Seals better then traditional O-ring chains
    Chain is sold per pin (change quantity to amount of pins needed, must be even number)
    Lasts up to 50% longer then standard O-ring chains
    Master link needs to be purchased separately
    Multiple chains of the same type and color need to be purchased on separate orders

    Learn More
    $0.30
  2. Heavy Duty, X-Ring Master Link, 520 Pitch - FS-520X-ML Heavy Duty, X-Ring Master Link, 520 Pitch - FS-520X-ML

    Factory Spec Heavy Duty, X-Ring Master Link, 520 Pitch - FS-520X-ML

    Heavy duty master link for 520 pitch, X-ring chain
    Clip style
    Factory Spec brand, we cannot verify if this works with other brand chains
    Works with our X-ring chain that has a tensile strength of 8,200 Lbs.
    Master links for our Standard & Heavy duty o-ring and non o-ring chains are also available

    Learn More
    $9.95
  3. Heavy Duty, Yellow X-Ring Chain, 520 Pitch - FS-520X-Y Heavy Duty, Yellow X-Ring Chain, 520 Pitch - FS-520X-Y

    Factory Spec Heavy Duty, Yellow X-Ring Chain, 520 Pitch (Sold Per Pin) - FS-520X-Y

    Factory Spec brand
    Designed to meet the demands of today's high-performance machines
    Reduces friction and power loss up to 40% over basic O-ring chains
    Tensile strength of 8200 pounds
    Seals better then traditional O-ring chains
    Chain is sold per pin (change quantity to amount of pins needed, must be even number)
    Lasts up to 50% longer then standard O-ring chains
    Master link needs to be purchased separately
    Multiple chains of the same type and color need to be purchased on separate orders

    Learn More
    $0.33
  4. Heavy Duty, Yellow X-Ring Master Link, 520 Pitch Heavy Duty, Yellow X-Ring Master Link, 520 Pitch

    Factory Spec Heavy Duty, Yellow X-Ring Master Link, 520 Pitch - FS-520X-YML

    Heavy duty master link for 520 pitch, X-ring chain
    Clip style
    Factory Spec brand, we cannot verify if this works with other brand chains
    Works with our X-ring chain that has a tensile strength of 8,200 Lbs.
    Master links for our Standard & Heavy duty o-ring and non o-ring chains are also available

    Learn More
    $9.95
  5. Front Sprocket 14T - Factory Spec FS-1654 Front Sprocket 14T - Factory Spec FS-1654

    Front Sprocket 14T - FS-1654

    Manufactured by Factory Spec
    14 tooth
    Made from hardened steel, outlasts aluminum sprockets
    520 Pitch
    Made in China

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $12.95
  6. 2 in. Oversize Rear Axle - Factory Spec AT-03770-6 2 in. Oversize Rear Axle - Factory Spec AT-03770-6

    2" Oversize Rear Axle - AT-03770-6

    Manufactured by Factory Spec
    Made from heat treated steel
    2" oversize axle (1" per side)
    Designed to accept stock components
    Made in Taiwan

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $149.95
  7. 420 Pitch Chain, Sold per pin 420 Pitch Chain, Sold per pin

    420 Pitch Chain, Sold per pin - FS-522

    Factory Spec brand
    Tensile strength of 4188 pounds
    Chain is sold per pin (change quantity to amount of pins needed, must be even number)
    Master link needs to be purchased separately
    Multiple chains of the same type and color need to be purchased on separate orders
    Natural color

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $0.10
  8. 428 Pitch Chain, Sold per pin 428 Pitch Chain, Sold per pin

    428 Pitch Chain, Sold per pin - FS-521

    Factory Spec brand
    Tensile strength of 4408 pounds
    Chain is sold per pin (change quantity to amount of pins needed, must be even number)
    Master link needs to be purchased separately
    Multiple chains of the same type and color need to be purchased on separate orders
    Natural color

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $0.10
  9. 520 Pitch Chain - Black - 92 Pins 520 Pitch Chain - Black - 92 Pins

    520 Pitch Chain - Black - 92 Pins - FS-520-NZBLK-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge. Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Black

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  10. 520 Pitch Chain - Blue - 92 Pins 520 Pitch Chain - Blue - 92 Pins

    520 Pitch Chain - Blue - 92 Pins - FS-520-NZB-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge.  Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Blue

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  11. 520 Pitch Chain - Gold - 92 Pins 520 Pitch Chain - Gold - 92 Pins

    520 Pitch Chain - Gold - 92 Pins - FS-520-NZG-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge.  Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Gold

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  12. 520 Pitch Chain - Green - 92 Pins 520 Pitch Chain - Green - 92 Pins

    520 Pitch Chain - Green - 92 Pins - FS-520-NZGR-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge.  Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Green

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  13. 520 Pitch Chain - Natural - 92 Pins 520 Pitch Chain - Natural - 92 Pins

    520 Pitch Chain - Natural - 92 Pins - FS-520-NZ-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge. Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non-sealed chain
    Tensile strength of 8200 pounds
    92 Pins (including master link)
    Clip style master link included
    Natural steel color
    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $15.64
  14. 520 Pitch Chain - Red - 92 Pins 520 Pitch Chain - Red - 92 Pins

    520 Pitch Chain - Red - 92 Pins - FS-520-NZR-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge.  Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Red

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  15. 520 Pitch Chain - Yellow - 92 Pins 520 Pitch Chain - Yellow - 92 Pins

    520 Pitch Chain - Yellow - 92 Pins - FS-520-NZY-92

    ***All chain sizes found using the "Ride Type" filter are for stock gearing, swingarms, etc. and are to the best of our knowledge.  Please check the length of your existing chain before purchasing.***

    Factory Spec brand
    Heavy duty, non o-ring chain
    Tensile strength of 8200 pounds
    92 Pins
    Clip style master link included
    Yellow

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced.

    Learn More
    $20.24
  16. Axle 3.5 in. Oversize TRX400EX - Factory Spec AT-03766-1 Axle 3.5 in. Oversize TRX400EX - Factory Spec AT-03766-1

    Axle 3.5" Oversize TRX400EX - AT-03766-1

    Manufactured by Factory Spec
    Made from heat treated steel
    Approximately +3.5 inches wider than stock
    Designed to accept stock components

    Use "Ride Type Filter" above to determine fitment for your application

    Learn More
    $169.95
  17. Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03764-2 Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03764-2

    Axle Heat Treated Steel 2" Oversize - Banshee - AT-03764-2

    Manufactured by Factory Spec
    Made from heat treated steel
    Accepts all the stock parts
    Total length of 38.5"
    Approximately 2" longer than stock (1" per side)
    Made in Taiwan

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $119.95
  18. Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03772-3 Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03772-3

    Axle Heat Treated Steel 2" Oversize - Raptor 660 - AT-03772-3

    Manufactured by Factory Spec
    Made from heat treated steel
    Total length of 36"
    2" Oversize axle (1" per side)
    Designed to accept all stock components

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $149.95
  19. Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03773-1 Axle Heat Treated Steel 2 in. Oversize - Factory Spec AT-03773-1

    Axle Heat Treated Steel 2" Oversize - YFZ450 - AT-03773-1

    Manufactured by Factory Spec
    Made from heat treated steel
    Axle has a total length of 38"
    Accepts all stock components except castle nuts. Uses castle nuts from 2004-2005 model, OEM # 90171-14037-00
    2" Oversize axle (1" on each side)
    Made in Taiwan

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $119.95
  20. Axle Stock Length - TRX300EX TRX250X - Factory Spec AT-03767-1 Axle Stock Length - TRX300EX TRX250X - Factory Spec AT-03767-1

    Axle Stock Length - TRX300EX TRX250X - AT-03767-1

    Manufactured by Factory Spec
    Made from heat treated steel
    Stock length
    Designed to accept stock components

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $149.95
  21. Black 520 O-Ring Master Link - Rivet Style - FS-520-OBLK-RML Black 520 O-Ring Master Link - Rivet Style - FS-520-OBLK-RML

    Black 520 O-Ring Master Link - Rivet Style - FS-520-OBLK-RML

    Included is:

    (1) Master link for 520 pitch, black o-ring chain
    Rivet style
    Factory Spec brand, we cannot check if this works with other brand chains
    Works with Factory Spec brand o-ring chain that has a tensile strength of 8,200 Lbs.
    Master links for Factory Spec brand Standard & Heavy duty non O-Ring chains are also available

    Learn More
    $7.99
  22. Black O-Ring Chain & Sprocket Kit, 13/38 Black O-Ring Chain & Sprocket Kit, 13/38
  23. (1) 520 x 98 o-ring chain (black)
  24. (1) Master link (clip style)
  25. (1) 13 tooth front sprocket
  26. (1) 38 tooth rear sprocket

  27. Chain has a tensile strength of 8200 pounds
    Stock gearing for these models is 13/38 with a 520x98 chain
    Sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains
    Made in China

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
$67.95
  • Black O-Ring Chain & Sprocket Kit, 13/38 Black O-Ring Chain & Sprocket Kit, 13/38

    Black O-Ring Chain & Sprocket Kit, 13/38 - K16601570520OBLK96

    Included is: 


    (1) 520 x 96 Link black o-ring chain
    (1) Master link (clip style)
    (1) 13 tooth front sprocket
    (1) 38 tooth rear sprocket
    Tensile strength of 8200 pounds
    Factory Spec brand
    Stock gearing for this model is 13/38 with a 96 Link chain
    Our sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced. Other length chains are available.

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $69.79
  • Black O-Ring Chain & Sprocket Kit, 13/38 Black O-Ring Chain & Sprocket Kit, 13/38

    Black O-Ring Chain & Sprocket Kit, 13/38 - K15891570520OBLK86

    Included is:


    (1) 520 x 86 Link black o-ring chain
    (1) Master link (clip style)
    (1) 13 tooth front sprocket
    (1) 38 tooth rear sprocket
    Tensile strength of 8200 pounds
    Factory Spec brand
    Stock gearing for this model is 13/38 with a 86 Link chain
    Our sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced. Other length chains are available.

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $64.95
  • Black O-Ring Chain & Sprocket Kit, 13/40 Black O-Ring Chain & Sprocket Kit, 13/40
  • (1) 520 x 98 o-ring chain (black)
  • (1) Master link (clip style)
  • (1) 13 tooth front sprocket
  • (1) 40 tooth rear sprocket

  • Chain has a tensile strength of 8200 pounds
    Stock gearing for these models is 13/40 with a 520x98 chain
    Sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains
    Made in China

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $67.95
  • Black O-Ring Chain & Sprocket Kit, 13/40 Black O-Ring Chain & Sprocket Kit, 13/40

    Black O-Ring Chain & Sprocket Kit, 13/40 - K15921558520OBLK92

    Included is:
    (1) 520 x 92 Link black o-ring chain
    (1) Master link (clip style)
    (1) 13 tooth front sprocket
    (1) 40 tooth rear sprocket

    Chain has a tensile strength of 8200 pounds
    Manufactured by Factory Spec
    Stock gearing for this model is 13/40 with a 92 Link chain
    Factory Spec brand sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced. Other length chains are available.

    Use "Ride Type Filter" above to determine fitment for your application

    Learn More
    $67.95
  • Black O-Ring Chain & Sprocket Kit, 13/40 Black O-Ring Chain & Sprocket Kit, 13/40
  • (1) 520 x 92 o-ring chain (black)
  • (1) Master link (clip style)
  • (1) 13 tooth front sprocket
  • (1) 40 tooth rear sprocket

  • Chain has a tensile strength of 8200 pounds
    O-ring style means it will last longer with less maintenance than conventional chains
    Stock gearing for these models is 13/40 with a 520x92 chain
    Sprockets are made of hardened steel and built to last
    Made in China

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $66.95
  • Black O-Ring Chain & Sprocket Kit, 14/36 Black O-Ring Chain & Sprocket Kit, 14/36

    Black O-Ring Chain & Sprocket Kit, 14/36 - K15861664520OBLK96

    Included is:


    (1) 520 x 96 Link black o-ring chain
    (1) Master link (clip style)
    (1) 14 tooth front sprocket
    (1) 36 tooth rear sprocket
    Tensile strength of 8200 pounds
    Factory Spec brand
    Stock gearing for this model is 14/36 with a 96 Link chain
    Our sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced. Other length chains are available.

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $67.99
  • Black O-Ring Chain & Sprocket Kit, 14/38 Black O-Ring Chain & Sprocket Kit, 14/38

    Black O-Ring Chain & Sprocket Kit, 14/38 - K16611570520OBLK94

    Included is: 


    (1) 520 x 94 Link black o-ring chain
    (1) Master link (clip style)
    (1) 14 tooth front sprocket
    (1) 38 tooth rear sprocket
    Tensile strength of 8200 pounds
    Factory Spec brand
    Stock gearing for this model is 14/38 with a 94 Link chain
    Our sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains

    Be sure to check the tensile strength of any chain you buy. Low tensile strength chain will stretch and need to be replaced. Other length chains are available.

    Use "Ride Type Filter" above to determine fitment for your application.

    Learn More
    $69.79
  • Black O-Ring Chain & Sprocket Kit, 14/38 Black O-Ring Chain & Sprocket Kit, 14/38
  • (1) 520 x 96 o-ring chain (black)
  • (1) Master link (clip style)
  • (1) 14 tooth front sprocket
  • (1) 38 tooth rear sprocket

  • Chain has a tensile strength of 8200 pounds
    Stock gearing for these models is 14/38 with a 520x96 chain
    Sprockets are made of hardened steel and built to last
    O-ring style means it will last longer with less maintenance than conventional chains
    Made in China

    Use "Ride Type" filter above to determine fitment for your application

    Learn More
    $67.95

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