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BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.
BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.

Kawasaki KX450F

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10-15 KX450F KX 450F Athena Big Bore Kit 100mm Cylinder Piston 493cc Top End Kit

BPRATV

100mm Athena or OEM cylinder 100mm JE or CP forged piston** Nitrite coated piston rings Chrome wristpin Circlips Talon TITANIUM head stud kit - ...

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$1,019.95
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$918.96
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$918.96

2008 KX450F KX 450F 96mm OEM Cylinder Wiseco Piston Cometic Top End Rebuild Kit

BPRATV

Kawasaki KX450F 96mm Stock Bore Top End Rebuild Kit with OEM Cylinder & The Best Components in the industry! Genuine Kawasaki 96mm stock bore c...

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$1,019.95
$918.96
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$918.96
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Save 35% Save %
$1,039.50
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$1,039.50
$679.99
$679.99 - $679.99
$679.99

09-15 KX450F KX 450F Athena Big Bore Kit 100mm Cylinder Piston 493cc Top End Kit

BPRATV

100mm Athena or OEM cylinder 100mm JE or CP forged piston** Nitrite coated piston rings Chrome wristpin Circlips Talon TITANIUM head stud kit - ...

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$1,039.50
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$1,039.50
$679.99
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$679.99
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Save 42% Save %
$1,039.50
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$1,039.50
$599.99
$599.99 - $599.99
$599.99

09-15 KX450F Top End Rebuild Kit Stock Standard Bore Cylinder Piston Assembly

BPRATV

Athena or OEM stock bore cylinder Wiseco JE or CP forged piston** Nitrite coated piston rings Chrome wristpin Circlips Talon TITANIUM head stud ...

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$599.99
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$599.99
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$999.99
$999.99 - $999.99
$999.99
$759.98
$759.98 - $759.98
$759.98

16-18 KX450F KX 450F Big Bore Kit 100mm OEM Cylinder Piston 493cc Top End Kit

BPRATV

2016 - 2018 Kawasaki KX450F BIG BORE Top End Kit 100mm Kawasaki OEM cylinder (Bored & Nikasil Plated by Millennium Technologies) 100mm JE or CP...

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$999.99
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$759.98
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Save 66% Save %
$1,039.50
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$1,039.50
$349.99
$349.99 - $349.99
$349.99

Best 07 08 KX450F KX 450F Crank Trans Bearing Kit Complete Motor Engine Bearings

BPRATV

Complete roller and needle bearing kit for crankcases (bottom end) Crankshaft main bearings Counter balancer bearings Transmission bearings Shift...

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$1,039.50
$349.99
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$349.99
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$1,099.99
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$1,099.99
$999.99
$999.99 - $999.99
$999.99

09-15 KX450F KX 450F 480cc Big Bore Kit 98mm Cylinder Piston Gasket Top End Kit

BPRATV

FITS ALL 09-15 KAWASAKI KX450F MODELS 98mm Nikasil Big Bore Cylinder (1 Year Warranty) JE or Wiseco  98mm Forged Piston (Includes Rings, Wristpin, ...

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$1,099.99
$999.99
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$999.99
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Save 55% Save %
$263.99
$263.99 - $263.99
$263.99
$119.99
$119.99 - $119.99
$119.99

06-08 KX450F KX 450F TITANIUM Head Studs Ti Alloy Cylinder Stud Bolt Upgrade Kit

BPRATV

           FITS ALL 06-08 KX450F MODELS! Complete Grade 5 Ti-6 Titanium alloy stud kit Includes Ti studs, 12 point flange nuts, and M3 washers As...

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$263.99
$263.99 - $263.99
$263.99
$119.99
$119.99 - $119.99
$119.99
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$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99

06-08 KX450F KX 450F KXF 450 Stroker Crank Complete Rebuilt Motor Engine Rebuild

BPRATV

FITS ALL '06-08 KX450F MODELS!470cc STROKER - BOLT ON 96mm after marketd cylinder Hotrods +3mm stroker crank with rod JE Wiseco or CP forged pis...

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$1,000.99
$1,000.99 - $1,000.99
$1,000.99
$675.00
$675.00 - $675.00
$675.00

16-18 KX450F KX 450F OEM Cylinder 96mm Stock Bore Piston Complete Top End Kit

BPRATV

FITS ALL '16-18 KAWASAKI KX450F MODELS! OEM Kawasaki cylinder Wiseco CP or JE forged piston Piston rings Wristpin Circlips Top end gasket kit Ca...

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$1,000.99
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$1,000.99
$675.00
$675.00 - $675.00
$675.00
Save 33% Save %
$279.99 - $279.99
$279.99
$279.99 - $279.99
$279.99

09-16 KX450F KX 450F Engine Motor Bearings Complete Aftermarket Bearing Kit Seal

BPRATV

           FITS ALL 09-16 KX450F MODELS! Includes all needle and roller bearings for bottom end 14 bearings total 12 roller bearings and 2 needle...

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$279.99 - $279.99
$279.99
$279.99 - $279.99
$279.99
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$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,599.98
$1,599.98 - $1,599.98
$1,599.98

10-15 KX450F KX 450F 100mm Big Bore Rebuild Kit Complete Motor Engine Assembly

BPRATV

FITS ALL 2010 - 2015 KX450F MODELS 100mm Athena or OEM cylinder 100mm forged piston CP JE Wiseco* Hi temp piston rings Wrist pin Circlips Hotrods r...

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$1,699.99
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$1,699.99
$1,599.98
$1,599.98 - $1,599.98
$1,599.98
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Save 31% Save %
$829.99
$829.99 - $829.99
$829.99
$569.99
$569.99 - $569.99
$569.99

09-15 KX450F KX 450F Stock Replacement Cylinder 96mm Rebuilt Top End Rebuild Kit

BPRATV

FITS ALL '09-15 KAWASAKI KX450F MODELS! Aftermarket 96mm Stock Bore Nikasil Cylinder (1 Year Warranty) CP JE or Wiseco forged piston* Nitrite coate...

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$829.99
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$829.99
$569.99
$569.99 - $569.99
$569.99
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Save 82% Save %
$329.95
$329.95 - $329.95
$329.95
$59.99
$59.99 - $59.99
$59.99

06-08 KX450F KXF450 SKF Crank Bearings Left Right HD Crankshaft Main Bearing Kit

BPRATV

FITS ALL KAWASAKI KX450F AND KFX450R MODELS AND YEARS One pair of heavy duty crankshaft bearings SKF made in France/Germany Stronger than OEM fo...

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$329.95
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$329.95
$59.99
$59.99 - $59.99
$59.99
Save 82% Save %
Save 23% Save %
$967.99
$967.99 - $967.99
$967.99
$749.99
$749.99 - $749.99
$749.99

16-18 KX450F KX 450F Stock OEM Bore Cylinder 11005-0660 Complete Top End Kit

BPRATV

FITS ALL 16-18 KAWASAKI KX450F MODELS 98mm big bore cylinder Forged JE hi comp pump gas piston** Piston rings Wristpin Circlips Top end gasket kit...

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$967.99
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$967.99
$749.99
$749.99 - $749.99
$749.99
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Save 58% Save %
$263.99
$263.99 - $263.99
$263.99
$111.99
$111.99 - $111.99
$111.99

06 07 08 KX450F KX 450F Ti Cylinder Head Studs Titanium Alloy Ti-6 Stud Kit Set

BPRATV

WORKS ON ALL '05-07 KAWASAKI KX450F MODELS All Grade 5 Titanium Alloy stud, nut, and washer kit Heat treated Allen head studs 12 point flange nut...

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$263.99
$263.99 - $263.99
$263.99
$111.99
$111.99 - $111.99
$111.99
Save 58% Save %
$1,999.99 - $1,999.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99

10-15 KX450F KX 450F KXF 450 Complete Rebuilt Motor Engine Rebuild Valves Cams

BPRATV

FITS ALL '06-08 KX450F MODELS!BIG TIME RELIABLE BOLT ON POWER! 96mm after market cylinder Hotrods HD crank with rod JE Wiseco or CP forged pisto...

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$1,999.99 - $1,999.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99
$316.34 - $316.34
$316.34
$316.34 - $316.34
$316.34

Best 2006 KX450F KX 450F Crank Trans Bearing Kit Complete Motor Engine Bearings

BPRATV

FITS ALL '06-08 KX450F MODELS! Complete roller and needle bearing kit for crankcases (bottom end) All new parts - 1 year warranty* We are BPRA...

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$316.34 - $316.34
$316.34
$316.34 - $316.34
$316.34
$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99

2009 KX450F KX 450F Big Bore Stroker Kit 100mm 516cc Motor Engine Rebuild Parts

BPRATV

FITS ALL KAWASAKI 2009 KX450F MODELS! 100mm big bore cylinder 100mm JE or CP forged piston** Nitrite coated piston rings Chrome wristpin Circlips H...

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$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99
Save 33% Save %
$999.99
$999.99 - $999.99
$999.99
$669.99
$669.99 - $669.99
$669.99

16-18 KX450F KX 450F Stock Replacement Cylinder 96mm Rebuilt Top End Rebuild Kit

BPRATV

Compatible Vehicles Submodel Year Make Model -- 2018 Kawasaki KX450F KX450HHF 2017 Kawasaki KX450F -- 201...

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$999.99
$999.99 - $999.99
$999.99
$669.99
$669.99 - $669.99
$669.99
Save 33% Save %
$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99

10-15 KX450F KX 450F Stock Bore Cylinder Crank Complete Motor Engine Rebuild Kit

BPRATV

FITS ALL '10-15 KX450F MODELS! Cylinder Works stock bore cylinder Wiseco JE or CP forged piston**Hi temp piston rings Chrome wristpin CirclipsH...

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$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99
$2,099.99 - $2,099.99
$2,099.99
$2,099.99 - $2,099.99
$2,099.99

2009 KX450F KX 450F Crankcases Rebuild Kit Complete Motor Engine Rebuild Cases

BPRATV

FITS ALL KAWASAKI 2009 KX450F MODELS! Brand new set of OEM crankcases Stock bore cylinder Wiseco JE or CP stock bore forged piston** Hi temp piston...

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$2,099.99 - $2,099.99
$2,099.99
$2,099.99 - $2,099.99
$2,099.99
Save 71% Save %
$1,039.50
$1,039.50 - $1,039.50
$1,039.50
$299.99
$299.99 - $299.99
$299.99

10-15 KX450F KX 450F Engine Bearings Bottom End Crankcase SKF Motor Bearing Kit

BPRATV

FITS ALL '10-15 KX450F MODELS! - BUY IN BULK AND SAVE $$ Aftermarket SKF complete bearing kit Crankshaft bearings Crank balancer bearings Transmi...

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$1,039.50
$1,039.50 - $1,039.50
$1,039.50
$299.99
$299.99 - $299.99
$299.99
Save 71% Save %
$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99

10-15 KX450F KX 450F 100mm Big Bore Complete Rebuilt Motor Engine Rebuild Kit

BPRATV

WORKS ON ALL '10-15 KAWASAKI KX450F MODELS 100mm OEM or Athena cylinder** CP-Carrillo custom 13:1 forged piston Hi temp piston rings Wrist pin Cir...

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$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99

2006 KX450F KX 450F Rebuild Kit Complete Top Bottom End Motor Engine Redo Kit

BPRATV

FITS ALL 2006 KX450F MODELS ONLY 96mm OEM or Athena cylinder JE Wiseco or CP forged piston** Nitrite coated hi temp piston rings Chrome wristpin...

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$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99
Save 27% Save %
$1,326.31
$1,326.31 - $1,326.31
$1,326.31
$969.98
$969.98 - $969.98
$969.98

09-15 KX450F KX 450F 96mm Stock Bore Cylinder Piston HOTCAMS Top End Rebuild Kit

BPRATV

Give your KX450F the power and performance boost it deserves with this complete top end rebuild kit.Key Features/Benefits: Fits all 2009-2015 Kawas...

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$1,326.31
$1,326.31 - $1,326.31
$1,326.31
$969.98
$969.98 - $969.98
$969.98
Save 27% Save %
Save 28% Save %
$967.99
$967.99 - $967.99
$967.99
$699.99
$699.99 - $699.99
$699.99

09-15 KX450F KX 450F 100mm Big Bore Rebuild Kit Complete Top End Assembly 490 +4

BPRATV

FITS ALL 09-15 KAWASAKI KX450F MODELS 100mm Athena or Millennium Plated OEM Cylinder** Forged CP, JE, or Wossner 100mm big bore piston** Nitrite c...

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$967.99
$967.99 - $967.99
$967.99
$699.99
$699.99 - $699.99
$699.99
Save 28% Save %
Save 6% Save %
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,599.99
$1,599.99 - $1,599.99
$1,599.99

16-18 KX450F OEM Cylinder & Crank Motor Complete Engine Rebuild Kit Top Bottom

BPRATV

FITS ALL '16-18 KX450F MODELS! OEM 96mm cylinder OEM crank with rod Wiseco, CP, JE, or Wossner forged piston* Hi-temp piston rings Wrist pin Circ...

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$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
Save 6% Save %
$1,349.99 - $1,349.99
$1,349.99
$1,349.99 - $1,349.99
$1,349.99

2009 KX450F KX 450F KXF 450 Complete Motor Engine Rebuild Kit Top Bottom End

BPRATV

FITS 2009 KX450F MODELS ONLY! 96mm aftermarket cylinder Hotrods HD crank with rod JE Wiseco or CP forged piston** Hi temp piston rings Wrist pin...

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$1,349.99 - $1,349.99
$1,349.99
$1,349.99 - $1,349.99
$1,349.99
Sold out
$1,000.99
$1,000.99 - $1,000.99
$1,000.99
$699.99
$699.99 - $699.99
$699.99

06 07 08 KX450F KX 450F Big Bore Kit 100mm Cylinder 488cc Top End Rebuild Kit

BPRATV

FITS ALL '06-08 KAWASAKI KX450F MODELS! 100mm big bore cylinder CP-Carrillo CUSTOM forged big bore piston Piston rings Wristpin Circlips Top end g...

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$1,000.99
$1,000.99 - $1,000.99
$1,000.99
$699.99
$699.99 - $699.99
$699.99
Sold out
$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99

16-18 KX450F KX 450F Stock OEM Cylinder Crank Complete Motor Engine Rebuild Kit

BPRATV

Compatible Vehicles Submodel Year Make Model -- 2018 Kawasaki KX450F KX450HHF 2017 Kawasaki KX450F -- 2016 Kawasaki KX450F FITS ALL...

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$1,499.99 - $1,499.99
$1,499.99
$1,499.99 - $1,499.99
$1,499.99
Save 30% Save %
$1,000.99
$1,000.99 - $1,000.99
$1,000.99
$699.98
$699.98 - $699.98
$699.98

09-15 KX450F KX 450F Big Bore Kit 100mm Cylinder Complete +4 Top End Rebuild Kit

BPRATV

FITS ALL '16-18 KAWASAKI KX450F MODELS! 100mm big bore cylinder CP-Carrillo CUSTOM forged big bore piston Piston rings Wristpin Circlips Top end g...

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$1,000.99
$1,000.99 - $1,000.99
$1,000.99
$699.98
$699.98 - $699.98
$699.98
Save 30% Save %

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