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Good news! We’ve found a better shipping solution to serve you more efficiently. Now shipping with Nationex, GLS, Purolator, ICS Courier and more!
Good news! We’ve found a better shipping solution to serve you more efficiently. Now shipping with Nationex, GLS, Purolator, ICS Courier and more!

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$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99

21653010 S. Cyl & Piston Assm 12XZ Speed Spec 3

OS Engines
Available for Order

$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99
$273.99 - $273.99
$273.99
$273.99 - $273.99
$273.99

21653020 Cylinder Rebuild Kit 12XZ Speed Spec 3

OS Engines
Available for Order

$273.99 - $273.99
$273.99
$273.99 - $273.99
$273.99
$237.99 - $237.99
$237.99
$237.99 - $237.99
$237.99

21653300 Cylinder Rebuild Kit 12XZ Speed

OS Engines
Available for Order

$237.99 - $237.99
$237.99
$237.99 - $237.99
$237.99
$137.99 - $137.99
$137.99
$137.99 - $137.99
$137.99

21654010 Outer Head 12XZ Spec II Speed

OS Engines
Available for Order

$137.99 - $137.99
$137.99
$137.99 - $137.99
$137.99
$159.99 - $159.99
$159.99
$159.99 - $159.99
$159.99

21654020 Outer Head 12XZ Speed Spec 3

OS Engines
Available for Order

$159.99 - $159.99
$159.99
$159.99 - $159.99
$159.99
$53.99 - $53.99
$53.99
$53.99 - $53.99
$53.99

21654100 Inner Head 12XZ Speed

OS Engines
Available for Order

$53.99 - $53.99
$53.99
$53.99 - $53.99
$53.99
$53.99 - $53.99
$53.99
$53.99 - $53.99
$53.99

21654110 Inner Head 12XZ Spec II Speed

OS Engines
Available for Order

$53.99 - $53.99
$53.99
$53.99 - $53.99
$53.99
$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99

21654120 Inner Head 12XZ Speed Spec 3

OS Engines
Available for Order

$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99
$171.99 - $171.99
$171.99
$171.99 - $171.99
$171.99

21673000 Cylinder & Piston Assembly 12XZ

OS Engines
Available for Order

$171.99 - $171.99
$171.99
$171.99 - $171.99
$171.99
$55.99 - $55.99
$55.99
$55.99 - $55.99
$55.99

21674100 Inner Cylinder Head 12XZ

OS Engines
Available for Order

$55.99 - $55.99
$55.99
$55.99 - $55.99
$55.99
$46.99 - $46.99
$46.99
$46.99 - $46.99
$46.99

21681900 Needle Valve Assembly #12FB 12XZ Speed

OS Engines
Available for Order

$46.99 - $46.99
$46.99
$46.99 - $46.99
$46.99
$204.99 - $204.99
$204.99
$204.99 - $204.99
$204.99

21682010 Carburetor 12F2-B 12XZ Speed Spec 3

OS Engines
Available for Order

$204.99 - $204.99
$204.99
$204.99 - $204.99
$204.99
$57.99 - $57.99
$57.99
$57.99 - $57.99
$57.99

21682210 Slide Valve 12F2/12XZ Speed Spec 3

OS Engines
Available for Order

$57.99 - $57.99
$57.99
$57.99 - $57.99
$57.99
$30.99 - $30.99
$30.99
$30.99 - $30.99
$30.99

21682500 Meter Needle Assembly #12FB 12XZ Speed

OS Engines
Available for Order

$30.99 - $30.99
$30.99
$30.99 - $30.99
$30.99
$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99

21682510 Metering Needle 12F2/12XZ Speed Spec

OS Engines
Available for Order

$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99
$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99

21682600 Mixture Control Valve 12F2

OS Engines
Available for Order

$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99
$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99

21682940 Needle Holder 12F-B 12XZ Speed Spec 3

OS Engines
Available for Order

$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99
$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99

21682950 Carburetor Dust Covers #12FB 12XZ Speed

OS Engines
Available for Order

$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
$173.99 - $173.99
$173.99
$173.99 - $173.99
$173.99

21683000 Carburetor #12F 12XZ

OS Engines
Available for Order

$173.99 - $173.99
$173.99
$173.99 - $173.99
$173.99
$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99

21706000 Piston Pin 15LA/CV/LD

OS Engines
Available for Order

$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99
$16.99 - $16.99
$16.99
$16.99 - $16.99
$16.99

21712010 Venturi 15FP/S

OS Engines
Available for Order

$16.99 - $16.99
$16.99
$16.99 - $16.99
$16.99
$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99

21713000 Screw Set 15LA (8)

OS Engines
Available for Order

$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99
$10.99 - $10.99
$10.99
$10.99 - $10.99
$10.99

21714100 Head Gasket 15LA

OS Engines
Available for Order

$10.99 - $10.99
$10.99
$10.99 - $10.99
$10.99
$50.99 - $50.99
$50.99
$50.99 - $50.99
$50.99

21751010 Crankcase 15LA Natural

OS Engines
Available for Order

$50.99 - $50.99
$50.99
$50.99 - $50.99
$50.99