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SKU:44912-15K
Suncoast Oversized Lube Regulated Pressure Regulator Valve Kit
Suncoast Oversized Lube Regulated Pressure Regulator Valve Kit

Description
Vehicles equipped with Chrysler 45RFE, 545RFE, 65RFE, 66RFE and 68RFE transmissions can develop low cooler flow at idle and/or overheated fluid issues after performing aftermarket reprogramming or 'tuning' the PCM/TCM for heavy duty use. Aftermarket programming typically commands a minimum of 100 psi at idle, which the OE pressure regulator cannot provide. This causes the valve to restrict the connection to the converter circuits, resulting in low cooler flow, fluid overheating, and converter crowding that causes stall at idle. Additionally, poor line pressure control can be the result of excessive wear in the pressure regulator valve bore. This wear allows critical oil loss, which can cause lowered line pressure, soft shifting and burnt clutches, or high line pressure and harsh shifts.
Reconditioning the bore and installing Sonnax oversized lube regulated pressure regulator valve kit 44912-15K restores pressure regulator action for line pressure control in all ranges. This valve has an internal check valve that ensures proper converter and lube oil flow under extreme 'tuned' operating conditions, eliminating the fluid overheat and converter related engine stalls at idle. This check valve reseats properly to seal the converter at engine off, eliminating the delayed engagements and converter drainback issues that arise from the outdated technique of drilling a hole in the casting wall between line and lube circuits.
- Hardcoat anodized aluminum valve combats premature wear
- Charges the converter/lube circuits at low RPM, especially important in 'tuned' vehicles
- Improves converter feed/lube oil flow at critical low RPM and high load conditions
- Redesigned valve prevents fluid drainback & slow engagements
- Annular grooves help center valve in bore to reduce side-load wear
- Kit includes selective springs for OE pressure, or for use with Sonnax line pressure booster kit, RFE-LB1
Fitments
2021 Dodge Ram 2500
2021 Dodge Ram 3500
2020 Dodge Ram 2500
2020 Dodge Ram 3500
2019 Dodge Ram 2500
2019 Dodge Ram 3500
2018 Dodge Ram 2500
2018 Dodge Ram 3500
2017 Dodge Ram 2500
2017 Dodge Ram 3500
2016 Dodge Ram 2500
2016 Dodge Ram 3500
2015 Dodge Ram 2500
2015 Dodge Ram 3500
2014 Dodge Ram 2500
2014 Dodge Ram 3500
2013 Dodge Ram 2500
2013 Dodge Ram 3500
2012 Dodge Ram 2500
2012 Dodge Ram 3500
2011 Dodge Ram 2500
2011 Dodge Ram 3500
2010 Dodge Ram 2500
2010 Dodge Ram 3500
2009 Dodge Ram 2500
2009 Dodge Ram 3500
2008 Dodge Ram 2500
2008 Dodge Ram 3500
2007 Dodge Ram 2500
2007 Dodge Ram 3500
2013 Dodge Durango
2013 Jeep Grand Cherokee
2012 Dodge Durango
2012 Dodge Ram 1500
2012 Jeep Grand Cherokee
2012 Jeep Liberty
2011 Dodge Dakota
2011 Dodge Durango
2011 Dodge Ram 1500
2011 Jeep Grand Cherokee
2011 Jeep Liberty
2010 Chrysler 300
2010 Dodge Dakota
2010 Dodge Durango
2010 Dodge Ram 1500
2010 Jeep Grand Cherokee
2010 Jeep Liberty
2009 Chrysler 300
2009 Dodge Dakota
2009 Dodge Durango
2009 Dodge Ram 1500
2009 Jeep Grand Cherokee
2009 Jeep Liberty
2008 Chrysler 300
2008 Dodge Dakota
2008 Dodge Durango
2008 Dodge Ram 1500
2008 Jeep Grand Cherokee
2008 Jeep Liberty
2007 Chrysler 300
2007 Dodge Dakota
2007 Dodge Durango
2007 Dodge Ram 1500
2007 Jeep Grand Cherokee
2007 Jeep Liberty
2006 Chrysler 300
2006 Dodge Dakota
2006 Dodge Durango
2006 Dodge Ram 1500
2006 Dodge Ram 2500
2006 Dodge Ram 3500
2006 Jeep Grand Cherokee
2006 Jeep Liberty
2005 Chrysler 300
2005 Dodge Dakota
2005 Dodge Durango
2005 Dodge Ram 1500
2005 Dodge Ram 2500
2005 Dodge Ram 3500
2005 Jeep Grand Cherokee
2005 Jeep Liberty
2004 Dodge Dakota
2004 Dodge Durango
2004 Dodge Ram 1500
2004 Dodge Ram 2500
2004 Dodge Ram 3500
2004 Jeep Grand Cherokee
2004 Jeep Liberty
2003 Dodge Dakota
2003 Dodge Durango
2003 Dodge Ram 1500
2003 Dodge Ram 2500
2003 Dodge Ram 3500
2003 Jeep Grand Cherokee
2003 Jeep Liberty
2002 Dodge Dakota
2002 Dodge Durango
2002 Dodge Ram 1500
2002 Jeep Grand Cherokee
2002 Jeep Liberty
2001 Dodge Dakota
2001 Dodge Durango
2001 Jeep Grand Cherokee
2000 Dodge Dakota
2000 Dodge Durango
2000 Jeep Grand Cherokee
1999 Jeep Grand Cherokee
Instructions
Specifications
SKU: 44912-15K
GTIN: 840385621878
Manufacture Name: Suncoast Performance
Shipping Weight: 2 lb
Shipping Length: 4 in
Shipping Width: 4 in
Shipping Height: 4 in
EO Number:
Cross Reference #
Warranty
California Proposition 65 Warning
California Proposition 65 Warning - P65warnings.ca.gov
44912-15K
Suncoast Oversized Lube Regulated Pressure Regulator Valve Kit
Vehicles equipped with Chrysler 45RFE, 545RFE, 65RFE, 66RFE and 68RFE transmissions can develop low cooler flow at idle and/or overheated fluid issues after performing aftermarket reprogramming or 'tuning' the PCM/TCM for heavy duty use. Aftermarket programming typically commands a minimum of 100 psi at idle, which the OE pressure regulator cannot provide. This causes the valve to restrict the connection to the converter circuits, resulting in low cooler flow, fluid overheating, and converter crowding that causes stall at idle. Additionally, poor line pressure control can be the result of excessive wear in the pressure regulator valve bore. This wear allows critical oil loss, which can cause lowered line pressure, soft shifting and burnt clutches, or high line pressure and harsh shifts.
Reconditioning the bore and installing Sonnax oversized lube regulated pressure regulator valve kit 44912-15K restores pressure regulator action for line pressure control in all ranges. This valve has an internal check valve that ensures proper converter and lube oil flow under extreme 'tuned' operating conditions, eliminating the fluid overheat and converter related engine stalls at idle. This check valve reseats properly to seal the converter at engine off, eliminating the delayed engagements and converter drainback issues that arise from the outdated technique of drilling a hole in the casting wall between line and lube circuits.
- Hardcoat anodized aluminum valve combats premature wear
- Charges the converter/lube circuits at low RPM, especially important in 'tuned' vehicles
- Improves converter feed/lube oil flow at critical low RPM and high load conditions
- Redesigned valve prevents fluid drainback & slow engagements
- Annular grooves help center valve in bore to reduce side-load wear
- Kit includes selective springs for OE pressure, or for use with Sonnax line pressure booster kit, RFE-LB1
Suncoast Oversized Lube Regulated Pressure Regulator Valve Kit