Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock and rotating it into the piston pin boss. Wire locks are installed similarly, but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger pin retention method. Hook wire locks have an integrated hook at the end gap to prevent rotation within the lock groove. Tru-arc locks fall between these to and can be used with the stock sharp edge wrist pins’ the advantage of tru-arc locks is the ease of installation and reusability (spiro locks cannot be re-used). However, tru-arc locks are only recommended for lower horsepower applications.
Wrist Pin Retainer, Wire Lock, Chrome Silicon, 0.748 in. Diameter, 0.050 in. Lock Thickness, Each.
Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock between 1/8" and 1/4" and rotating the lock into the groove in the piston pin boss. Wire locks are installed in much the same manner but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger method of holding the pin in place. Hook wire locks have a built in hook at the end gap. The purose for this style of wire lock is to prevent rotation within the lock groove itself. Tru arc locks fall between these two and can be used with the stock sharp edge wrist pins. The advantage of tru-arc locks is ease of installation and they can be re-used unlike spiro locks, however they are not recommended for medium to high horsepower applications.
JE Pistons Wire Lock
Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock and rotating it into the piston pin boss. Wire locks are installed similarly, but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger pin retention method. Hook wire locks have an integrated hook at the end gap to prevent rotation within the lock groove. Tru-arc locks fall between these to and can be used with the stock sharp edge wrist pins’ the advantage of tru-arc locks is the ease of installation and reusability (spiro locks cannot be re-used). However, tru-arc locks are only recommended for lower horsepower applications.
Wrist Pin Retainer, Wire Lock, Chrome Silicon, 0.748 in. Diameter, 0.050 in. Lock Thickness, Each.
Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock between 1/8" and 1/4" and rotating the lock into the groove in the piston pin boss. Wire locks are installed in much the same manner but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger method of holding the pin in place. Hook wire locks have a built in hook at the end gap. The purose for this style of wire lock is to prevent rotation within the lock groove itself. Tru arc locks fall between these two and can be used with the stock sharp edge wrist pins. The advantage of tru-arc locks is ease of installation and they can be re-used unlike spiro locks, however they are not recommended for medium to high horsepower applications.
ATTRIBUTES: false, true, false, Y, automotive, N/A, false, false, 1
BRAND: JE Pistons
MPN: jep748-050-MW
Air Freight Prohibited: false
Not Carb Approved: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1
Fitment:
Honda CRF450R Base 2002
Honda CRF450R Base 2003
Honda CRF450R Base 2004
Honda CRF450R Base 2005
Honda CRF450R Base 2006
Honda CRF450R Base 2007
Honda CRF450R Base 2008
Honda CRF450R Base 2009
Honda CRF450R Base 2010
Honda CRF450R Base 2011
Honda CRF450R Base 2012
Honda CRF450R Base 2013
Honda CRF450R Base 2014
Honda CRF450R Base 2015
Honda CRF450R Base 2016
Honda CRF450X Base 2005
Honda CRF450X Base 2006
Honda CRF450X Base 2007
Honda CRF450X Base 2008
Honda CRF450X Base 2009
Honda CRF450X Base 2010
Honda CRF450X Base 2011
Honda CRF450X Base 2012
Honda CRF450X Base 2013
Honda CRF450X Base 2014
Honda CRF450X Base 2015
Honda CRF450X Base 2016
Honda CRF450X Base 2017
Honda TRX450R Base 2006
Honda TRX450R Base 2007
Honda TRX450R Base 2008
Honda TRX450R Base 2009
Honda TRX450R Base 2010
Honda TRX450R Base 2011
Honda TRX450R Base 2012
Honda TRX450R Base 2013
Honda TRX450R Base 2014
Kawasaki KX450F Base 2006
Kawasaki KX450F Base 2007
Kawasaki KX450F Base 2008
Kawasaki KX450F Base 2009
Kawasaki KX450F Base 2010
Kawasaki KX450F Base 2011
Kawasaki KX450F Base 2012
Kawasaki KX450F Base 2013
Kawasaki KX450F Base 2014
Kawasaki KX450F Base 2016
Kawasaki KX450F Base 2017
Kawasaki KX450F Base 2018
KTM 450 SX-F Base 2007
KTM 450 SX-F Base 2008
KTM 450 SX-F Base 2009
KTM 450 SX-F Base 2010
KTM 450 SX-F Base 2011
KTM 450 SX-F Base 2012
KTM 450 XC-F Base 2007
KTM 450 XC-F Base 2008
KTM 450 XC-F Base 2009
KTM 450 XC-F Base 2010
KTM 450 XC-F Base 2011
KTM 450 XC-F Base 2012
Suzuki Lt-R450 Quadracer Base 2006
Suzuki Lt-R450 Quadracer Base 2007
Suzuki Lt-R450 Quadracer Base 2008
Suzuki Lt-R450 Quadracer Base 2009
Suzuki Lt-R450 Quadracer Base 2010
Suzuki Lt-R450 Quadracer Base 2011
Suzuki RMX450Z Base 2010
Suzuki RMX450Z Base 2011
Suzuki RMX450Z Base 2012
Suzuki RMX450Z Base 2013
Suzuki RMX450Z Base 2014
Suzuki RMX450Z Base 2015
Suzuki RMX450Z Base 2016
Suzuki RMX450Z Base 2017
Suzuki RMX450Z Base 2018
Suzuki RMX450Z Base 2019
Yamaha WR426F Base 2001
Yamaha WR426F Base 2002
Yamaha YZ426F Base 2000
Yamaha YZ426F Base 2001
Yamaha YZ426F Base 2002
