Skip to content
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!

Honda TRX450R

Filters

$
$
Save 5% Save %
$1,999.99
$1,999.99 - $1,999.99
$1,999.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99

TRX450R TRX 450R 450ER Full Ported Head Porting Port Assembly Kibblewhite Valves

Kibblewhite Precision

FITS ALL '06 HONDA TRX450R/450ER MODELS! Brand New OEM Honda cylinder head Full race port and polish Head assembly with valve adjustment Kibblewh...

View full details
$1,999.99
$1,999.99 - $1,999.99
$1,999.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99
Save 5% Save %
Save 11% Save %
$89.99
$89.99 - $89.99
$89.99
$79.98
$79.98 - $79.98
$79.98

Best 04 05 TRX450R TRX 450R Crank Bearings NTN SKF Left Right Main Bearing Kit

SKF

FITS ALL '04-05 HONDA TRX450R MODELS!Both left and right side crank bearingsSKF & NTN Main Crank Bearings Includes crankshaft main bearing seal...

View full details
$89.99
$89.99 - $89.99
$89.99
$79.98
$79.98 - $79.98
$79.98
Save 11% Save %
Save 9% Save %
$2,199.99
$2,199.99 - $2,199.99
$2,199.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99

06+ TRX450R 100mm Big Bore Kit Ported Cylinder Head Kibblewhite Valves

BPRATV

100mm big bore cylinder JE or CP 100mm big bore forged piston Nitrite coated piston rings Chrome wristpin Circlips Cometic top end gasket kit  MLS ...

View full details
$2,199.99
$2,199.99 - $2,199.99
$2,199.99
$1,999.99
$1,999.99 - $1,999.99
$1,999.99
Save 9% Save %
Save 18% Save %
$2,199.99
$2,199.99 - $2,199.99
$2,199.99
$1,799.99
$1,799.99 - $1,799.99
$1,799.99

06+ TRX450R Ported Cylinder Head +1 Valve 100mm Big Bore Kit Port Polish Valves

BPRATV

100mm big bore cylinder Wiseco, JE or CP 100mm big bore piston Hard coated piston rings Chrome wristpin Circlips Top end gasket kit  Cometic big bo...

View full details
$2,199.99
$2,199.99 - $2,199.99
$2,199.99
$1,799.99
$1,799.99 - $1,799.99
$1,799.99
Save 18% Save %
Get best Honda trx450r ported head porting near me
$1,899.99 - $1,899.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99

06+ TRX450R Ported Head +2 Intake +1 Exhaust Assembled Head Assembly Kibblewhite

BPRATV

Brand new OEM cylinder head Full race port & polish Intake, exhaust, combustion chamber Valve guides cut to match porting Pocket port for +1mm...

View full details
$1,899.99 - $1,899.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99
Save 13% Save %
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
$1,399.99
$1,399.99 - $1,399.99
$1,399.99

06+ TRX450R Ported +1 Cylinder Head Assembly Assembled +1 Head Kibblewhite Valve

Honda OEM

Brand new OEM cylinder head Full race port & polish Intake, exhaust, combustion chamber Valve guides cut to match porting Pocket port for +1mm...

View full details
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
$1,399.99
$1,399.99 - $1,399.99
$1,399.99
Save 13% Save %
Sold out
$1,599.99 - $1,599.99
$1,599.99
$1,599.99 - $1,599.99
$1,599.99

04 05 TRX450R 97mm Big Bore Stroker Rebuild Kit Stage 3 Hotcam 500cc Assembly

Hot Rods

FITS ALL 04-05 HONDA TRX450R MODELS! 97mm big bore cylinder Hotrods +3mm stroker crank with rod**HD crank bearings Crank balancer bearings Trans...

View full details
$1,599.99 - $1,599.99
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
Sold out
Sold out
$999.99 - $999.99
$999.99
$999.99 - $999.99
$999.99

04 05 TRX450R TRX 450R Big Bore Stage 2 Hotcam Valve Springs 479cc Top End Kit

BPRATV

FITS 2004 AND 2005 HONDA TRX450R MODELS 97mm cylinder Wiseco custom big bore forged piston Hi-temp piston rings Chrome wrist pin Circlips Kibblew...

View full details
$999.99 - $999.99
$999.99
$999.99 - $999.99
$999.99
Sold out
Save 12% Save %
$449.99
$449.99 - $449.99
$449.99
$395.00
$395.00 - $395.00
$395.00

04 05 TRX450R 450R Kibblewhite Valves Springs Valve Guides Spring Kit Complete

Kibblewhite Precision

FITS ALL 2004 and 2005 HONDA TRX450R MODELS! All Kibblewhite complete head rebuildChrome silicone valve springsTitanium retainersHeat treated coll...

View full details
$449.99
$449.99 - $449.99
$449.99
$395.00
$395.00 - $395.00
$395.00
Save 12% Save %
Save 94% Save %
$1,022.99
$1,022.99 - $1,022.99
$1,022.99
$59.99
$59.99 - $59.99
$59.99

04 05 TRX450R TRX 450R Titanium Stator Cover Bolts Left Side Cover Ti Bolt Kit

BPRATV

FITS ALL '04-05 HONDA TRX450R AND MODELS All Titanium right side (clutch) bolt kit Made from Grade 5 Ti-6 Titanium alloy (Strongest form of commo...

View full details
$1,022.99
$1,022.99 - $1,022.99
$1,022.99
$59.99
$59.99 - $59.99
$59.99
Save 94% Save %
Save 12% Save %
$649.99
$649.99 - $649.99
$649.99
$575.00
$575.00 - $575.00
$575.00

04 05 TRX450R TRX 450R Cylinder Stock Rebuilt Top End Rebuild Complete Redo Kit

BPRATV

FITS ALL 04-05 HONDA TRX450R MODELS! After market stock bore cylinder Wiseco or CP forged piston Piston rings Wristpin Circlips Top end gasket ki...

View full details
$649.99
$649.99 - $649.99
$649.99
$575.00
$575.00 - $575.00
$575.00
Save 12% Save %
Save 13% Save %
$689.99
$689.99 - $689.99
$689.99
$599.99
$599.99 - $599.99
$599.99

04 05 TRX450R TRX 450R Stock Bore Cylinder Piston Complete Top End Rebuild Kit

BPRATV

FITS ALL 2004 and 2005 TRX450R MODELS! 94mm after market cylinder Wiseco, CP, or JE hi comp pump gas forged piston** Nitrite coater hi temp piston...

View full details
$689.99
$689.99 - $689.99
$689.99
$599.99
$599.99 - $599.99
$599.99
Save 13% Save %
Save 34% Save %
$984.50
$984.50 - $984.50
$984.50
$649.99
$649.99 - $649.99
$649.99

04 05 TRX450R TRX 450R Stock Cylinder 14:1 Hi Comp Race Gas Piston Top End Kit

BPRATV

WORKS ON ALL 2004 and 2005 HONDA TRX450R SPORTRAX MODELS Aftermarket 94mm (stock bore) cylinder Wiseco forged 94mm 14:1 piston Racer's choice u...

View full details
$984.50
$984.50 - $984.50
$984.50
$649.99
$649.99 - $649.99
$649.99
Save 34% Save %
Save 15% Save %
$764.68
$764.68 - $764.68
$764.68
$649.98
$649.98 - $649.98
$649.98

04 05 TRX450R TRX 450R Cylinder 14:1 Hi Comp Piston Complete Top End Rebuild Kit

BPRATV

FITS ALL 2004 and 2005 TRX450R MODELS! 94mm after market cylinder 14:1 CP, JE or Wiseco forged piston** Armorglide coated lateral gas ported Racer...

View full details
$764.68
$764.68 - $764.68
$764.68
$649.98
$649.98 - $649.98
$649.98
Save 15% Save %
Get best trx450r porting port head near me
Save 18% Save %
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,399.99
$1,399.99 - $1,399.99
$1,399.99

04 05 TRX450R Ported Cylinder Head Assembly Assembled Head Kibblewhite Valves

BPRATV

BRAND NEW HEAD COMPLETELY ASSEMBLED WITH KIBBLEWHITE PARTS!!  FITS ALL '06+ HONDA TRX450R/450ER MODELS! Brand new OEM cylinder head Complete asse...

View full details
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
$1,399.99
$1,399.99 - $1,399.99
$1,399.99
Save 18% Save %
Save 12% Save %
$1,249.99
$1,249.99 - $1,249.99
$1,249.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99

06+ TRX450R 450ER Complete Rebuilt Motor Engine Rebuild Top Bottom End Kit

BPRATV

FITS ALL 2006+ HONDA TRX450R/450ER MODELS! After market 96mm cylinder Wiseco JE or CP forged piston** Hi temp piston rings Wristpin Circlips Hot...

View full details
$1,249.99
$1,249.99 - $1,249.99
$1,249.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99
Save 12% Save %
Save 22% Save %
$1,274.99
$1,274.99 - $1,274.99
$1,274.99
$998.88
$998.88 - $998.88
$998.88

04 05 TRX450R TRX 450R 94mm CP Piston Cylinder Cometic Stage 2 Hot Cams Stud Kit

BPRATV

10003, C7877, C7877, 12101-HP1-670, 13101-HP1-670, 14110-HP1-670, M2025, 4060, CBK0097, 4848M09400, K046, 822237, 808868, M2035, 4849M09400, M2021,...

View full details
$1,274.99
$1,274.99 - $1,274.99
$1,274.99
$998.88
$998.88 - $998.88
$998.88
Save 22% Save %
Save 21% Save %
$2,899.99
$2,899.99 - $2,899.99
$2,899.99
$2,298.88
$2,298.88 - $2,298.88
$2,298.88

06+ Honda TRX450R TRX 450R 520cc 100mm Cylinder Big Bore Stroker Kit Bored Cases

BPRATV

11100-HP1-600,11200-HP1-600,4170,CBK0145,M2054,4070,CBK0106,M2037,4899M09600,K047,808904,822312,A-TRX450R-06-96-CG,EC210-016,P400210100016,P4002101...

View full details
$2,899.99
$2,899.99 - $2,899.99
$2,899.99
$2,298.88
$2,298.88 - $2,298.88
$2,298.88
Save 21% Save %
Save 28% Save %
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77

04 05 Honda TRX450R TRX 450R Pro Design Pro Flow Foam Air Filter Intake Kit UNI

BPRATV

PD226, PD226A, PD245, PD245A, 16100-HP1-673, HA-4505, 16210-MEB-670, NU-4126ST, PD-227A, PD227, HFF1024, 17253-HP1-000, 17254-HP1-000, 17211-HP1-00...

View full details
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77
Save 28% Save %
Save 28% Save %
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77

Honda TRX450R TRX 450R Pro Design Pro Flow Foam Air Filter Intake Kit UNI '04-05

BPRATV

PD226, PD226A, PD245, PD245A, 16100-HP1-673, HA-4505, 16210-MEB-670, NU-4126ST, PD-227A, PD227, HFF1024, 17253-HP1-000, 17254-HP1-000, 17211-HP1-00...

View full details
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77
Save 28% Save %
Save 28% Save %
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77

Honda TRX450R TRX 450R Pro Design Pro Flow Foam Air Filter Intake Kit UNI '04-05

BPRATV

PD226, PD226A, PD245, PD245A, 16100-HP1-673, HA-4505, 16210-MEB-670, NU-4126ST, PD-227A, PD227, HFF1024, 17253-HP1-000, 17254-HP1-000, 17211-HP1-00...

View full details
$162.95
$162.95 - $162.95
$162.95
$117.77
$117.77 - $117.77
$117.77
Save 28% Save %
Save 23% Save %
$899.99
$899.99 - $899.99
$899.99
$688.88
$688.88 - $688.88
$688.88

04 05 Honda TRX450R TRX 450R 94mm 13.5:1 CP Race Gas Piston Top End Rebuild Kit

CP-Carrillo

M2025, 10003, 10003-K01, 90031-MEB-670, 90453-KCY-670, 94050-10000,4060,CBK0097,4848M09400,10003,K046,822237,808868,M2035,4849M09400, M2021, 221771...

View full details
$899.99
$899.99 - $899.99
$899.99
$688.88
$688.88 - $688.88
$688.88
Save 23% Save %
Save 30% Save %
$430.74
$430.74 - $430.74
$430.74
$299.99
$299.99 - $299.99
$299.99

06-09 TRX450R Hotcams Hot Cams Stage 1 Camshaft OEM Upgrade Bearing & Chain Kit

Hot Cams

Hot Cams Stage 1 Camshaft Upgrade Kit for 06-09 TRX450R – Performance Boost with Heavy-Duty Chain & Cam BearingRev up your ride with the Hotcam...

View full details
$430.74
$430.74 - $430.74
$430.74
$299.99
$299.99 - $299.99
$299.99
Save 30% Save %
Save 30% Save %
$430.74
$430.74 - $430.74
$430.74
$299.99
$299.99 - $299.99
$299.99

06 07 TRX450ER Hotcams Hot Cams Stage 1 Camshaft OEM Upgrade Bearing & Chain Kit

Hot Cams

Hot Cams Stage 1 Camshaft Upgrade Kit for 06-07 TRX450ER – Performance Boost with Heavy-Duty Chain & Cam BearingRev up your ride with the Hotca...

View full details
$430.74
$430.74 - $430.74
$430.74
$299.99
$299.99 - $299.99
$299.99
Save 30% Save %
Save 16% Save %
$199.99
$199.99 - $199.99
$199.99
$168.89
$168.89 - $168.89
$168.89

2004 2005 TRX450R TRX 450R 97mm Big Bore Piston Wiseco 97 Bore 11.5:1 479cc +3mm

Wiseco

130790M09700,M2055,M1112,C7201,C7201-EST,13101-HP1-670,13101-HP1-670, 13111-HP1-670, 13112-HP1-670, 13011-HP1-305,CPN2-3819 C3044 / C7201,H2129027S...

View full details
$199.99
$199.99 - $199.99
$199.99
$168.89
$168.89 - $168.89
$168.89
Save 16% Save %
Save 10% Save %
$219.99
$219.99 - $219.99
$219.99
$197.97
$197.97 - $197.97
$197.97

04 05 TRX 450R TRX450R 97mm Pump Gas Piston Wiseco +3 11.5:1 Big Bore Gasket Kit

Wiseco

130790M09700,M2055,M1112,C7201,C7201-EST,13101-HP1-670,13101-HP1-670, 13111-HP1-670, 13112-HP1-670, 13011-HP1-305,CPN2-3819 C3044 / C7201,H2129027S...

View full details
$219.99
$219.99 - $219.99
$219.99
$197.97
$197.97 - $197.97
$197.97
Save 10% Save %
Save 32% Save %
$99.99
$99.99 - $99.99
$99.99
$67.99
$67.99 - $67.99
$67.99

04 05 TRX450R Sportrax Duner Trail Clutch Kit Fibers Steels Springs & OEM Gasket

Kibblewhite Precision

H224, C224, H223, 3SHDC, 22201-HP1-670, 22201-MEB-670, 22321-KZ3-690, 22401-KZ3-690,11352-HP1-670, 11351-HP1-B00, 22401-KZ3-690, 22321-KZ3-690, 222...

View full details
$99.99
$99.99 - $99.99
$99.99
$67.99
$67.99 - $67.99
$67.99
Save 32% Save %
Save 35% Save %
$849.99
$849.99 - $849.99
$849.99
$549.99
$549.99 - $549.99
$549.99

04 05 TRX450R Top End Rebuild Kit 94mm Stock Cylinder Piston Assembly Redo Parts

BPRATV

4060,CBK0097,4848M09400,10003,K046,822237,808868,4849M09400, M2021, 221771,811868,12191-HP1-671,91202-HP1-671,12251-HP1-671,12191-HP1-671,91202-HP1...

View full details
$849.99
$849.99 - $849.99
$849.99
$549.99
$549.99 - $549.99
$549.99
Save 35% Save %
Save 5% Save %
$334.75
$334.75 - $334.75
$334.75
$318.02
$318.02 - $318.02
$318.02

CP Carrillo '04-05 Honda TRX450R TRX 450R 12:1 94mm OEM Bore 449cc CP Piston Kit

CP-Carrillo

Honda TRX450R OEM, M2035, 13101-HP1-670, 13111-HP1-670, 13112-HP1-670, 13011-HP1-305, CPN2-3701, W827-2000-15CP1C, 827x063 SWL Yamaha Honda TRX450R...

View full details
$334.75
$334.75 - $334.75
$334.75
$318.02
$318.02 - $318.02
$318.02
Save 5% Save %
Save 15% Save %
$334.75
$334.75 - $334.75
$334.75
$284.54
$284.54 - $284.54
$284.54

CP Carrillo 2004-2005 Honda TRX450R 12:1 94mm Stock OEM Bore 449cc CP Piston Kit

CP-Carrillo

Honda TRX450R OEM, M2035, 13101-HP1-670, 13111-HP1-670, 13112-HP1-670, 13011-HP1-305, CPN2-3701, W827-2000-15CP1C, 827x063 SWL Yamaha Honda TRX450R...

View full details
$334.75
$334.75 - $334.75
$334.75
$284.54
$284.54 - $284.54
$284.54
Save 15% Save %
Save 22% Save %
$1,274.99
$1,274.99 - $1,274.99
$1,274.99
$998.88
$998.88 - $998.88
$998.88

04 05 TRX450R TRX 450R 94mm CP Piston Cylinder Top Cometic Stage 2 Hotcams Chain

BPRATV

10003, C7877, C7877, 12101-HP1-670, 13101-HP1-670, 14110-HP1-670, M2025, 4060, CBK0097, 4848M09400, K046, 822237, 808868, M2035, 4849M09400, M2021,...

View full details
$1,274.99
$1,274.99 - $1,274.99
$1,274.99
$998.88
$998.88 - $998.88
$998.88
Save 22% Save %
Save 34% Save %
$1,184.54
$1,184.54 - $1,184.54
$1,184.54
$777.77
$777.77 - $777.77
$777.77

06+ TRX450R TRX 450R 96mm CP Piston Cylinder Top Cometic Stage 2 Hot Cams Chain

BPRATV

10005, 4899M09600, 1024-2, 30-30920, 30-30950, 30-30953, 4070, 808904, 822312, HC92RH2015112, M2036, M2136, 247613, 91001-HP1-601, 91002-HP1-601, 9...

View full details
$1,184.54
$1,184.54 - $1,184.54
$1,184.54
$777.77
$777.77 - $777.77
$777.77
Save 34% Save %
Save 29% Save %
$334.75
$334.75 - $334.75
$334.75
$238.88
$238.88 - $238.88
$238.88

CP-Carrillo 2006-2015 Honda TRX450R 12.5:1 96mm OEM Stock Bore 449cc Piston Kit

CP-Carrillo

CP Pistons M2036 Piston Kit - Built for TRX450R Racing PerformanceCP-Carrillo 06-15 Honda TRX450R 12.5:1 96mm STD Bore 62mm 449cc Piston KitFits Ho...

View full details
$334.75
$334.75 - $334.75
$334.75
$238.88
$238.88 - $238.88
$238.88
Save 29% Save %
Save 40% Save %
$914.66
$914.66 - $914.66
$914.66
$547.77
$547.77 - $547.77
$547.77

06+ TRX450R TRX 450R ER 100mm 490cc 13.5:1 CP Piston Big Bore Cylinder Kit 488cc

BPRATV

11005-K01, TRX100-CYL / M2052 / C3156, 11005-1,M2052,C3156,C3156,13101-HP1-600, 12100-HP1-601,13000-MEY-A21, 91001-HP1-601, 91002-HP1-601,10.1405, ...

View full details
$914.66
$914.66 - $914.66
$914.66
$547.77
$547.77 - $547.77
$547.77
Save 40% Save %
Save 10% Save %
$2,109.99
$2,109.99 - $2,109.99
$2,109.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99

04 05 TRX450R TRX 450R Rebuild Kit Complete Top Bottom Hot Cams KP Valves Spring

BPRATV

FITS ALL '04-05 HONDA TRX450R AND MODELSAftermarket Stock Bore CylinderWiseco, CP-Carrillo, JE, or Wossner Forged Piston Kit**Hi temp piston ringsC...

View full details
$2,109.99
$2,109.99 - $2,109.99
$2,109.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99
Save 10% Save %
Save 17% Save %
$349.99
$349.99 - $349.99
$349.99
$289.89
$289.89 - $289.89
$289.89

04-05 TRX450R TRX 450R Kibblewhite Valve Set Titanium Spring Kit RED Viton Seals

Kibblewhite Precision

30-30750, 30-30753, 30-30730, 30-30740,12204-HP1-305, 12205-HP1-305, 60-30720, 71016-4, 71015-4, 12209-KL4-005, 14711-HP1-670, 14721-HP1-670, 14751...

View full details
$349.99
$349.99 - $349.99
$349.99
$289.89
$289.89 - $289.89
$289.89
Save 17% Save %

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare