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CRF150R Piston CP Pistons Honda CRF 150 Piston Kits Standard Bore, Big Bore
and High Compression Pistons

CP Pistons, for those that demand the
ultimate in engine performance!
High performance and racing Honda piston kits are available from CP
Pistons for all model years of the CR150R four stroke dirt bikes. Standard bore
size and big bore CRF150R CP Pistons Honda dirt bike kits are all available here as well as
high compression pistons.. These forged pistons will work with oversize valves as well as
high lift camshafts as they include oversize valve reliefs. They incorporate a
"X" style forging for greater strength, durability and reduced weight. Along
with the full radius dome designs, high performance piston rings and lightweight piston
pins, these pistons offer the highest quality and are engineered for maximum power output.
Get Holeshot Winning Power with CP Pistons CRF150R Pistons!

| Standard Features included with each Honda
CRF 150R CP Piston Kit: |
| Double forced pin oilers |
Fully CNC Machined |
| Accumulator groove |
Pick lock removal grooves |
| Anti detonation grooves |
X-style forging |
| Light weight pins |
Balanced to + or - 1 gram |
2007 - 2010 Honda CR150R CP Piston Kit
- Piston Kit includes: Piston, pin, locks, rings
- Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston
Cometic top end gasket sets are available separately, but
are not included with the piston kit. The matching top end gasket kit for each application
is listed in the table below, when available, along with the individual piston kit info.
Stock
Bore size is 66mm (2.598") Stock Stroke is 43.7mm (1.720") |
| Bore Size |
Disp. |
Comp |
Installation
Notes |

Piston/Gasket Kit
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Piston Kit
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Gasket Kit
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| 66mm std. |
149cc |
13-1 |
1) deglaze cylinder
2) designed for use with stock type concave valves only do NOT install
with flat valves |
cpk2043c
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cp m2043c
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cp c3187est
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| 66mm std. |
149cc |
13-1 |
1) deglaze cylinder
2) designed for use with flat face valves, can
be used with stock concave valves but compression will be slightly lower than 13-1 when
using concave valves |
cpk2044c
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cp m2044c
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cp c3187est
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| 68mm +2mm oversize |
158cc |
13-1 |
1) bore and replate
2) designed for use with flat face valves, can be used with
stock concave valves but compression will be slightly lower than 13-1 when using concave
valves |
cpk2056c
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cp m2056c
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cp c3171est
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The piston and gaskets listed on this page fit the
following model year CRF150R Dirt Bikes:
2007 2008 2009 2010 Honda CRF 150R Piston Kit
© Motorsports Parts Corporation T/A Campbell Enterprises. All rights reserved
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