AW55-50SN AW55-51SN AF23 AF33 Pressure Regulator & Boost Valve Sonnax 59947-12K
AW55-50SN AW55-51SN AF23 AF33 Pressure Regulator & Boost Valve Sonnax 59947-12K
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AW55-50SN AW55-51SN AF23 AF33 Pressure Regulator & Boost Valve Sonnax 59947-12K

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 AW55-50SN AW55-51SN AF23 AF33 Oversized Pressure Regulator & Boost Valve Sonnax 59947-12K

Wear at the balance end can cause harsh shifts, high line pressure, converter apply/release problems and lube-related issues. Wear at the other locations can result in soft shifts, low line pressure, and converter problems. Boost sleeve wear reduces the ability of line pressure to rise according to TCM command, resulting in slow line rise and late shifts. Late shifts can often create gear ratio codes. A worn boost sleeve in this unit can also cause a delay in reverse or slippage, eventually burning the low reverse (B3), 1-2 reverse (B5) band and or the direct clutch (C2).

  • Boost valve assembly is manufactured from an upgraded highly wear-resistant sleeve and a hard-coat anodized aluminum valve to provide better wear resistance.
  • Replacement pressure regulator valve is hard-coat anodized aluminum to provide better wear resistance than the original steel valve.
  • The pressure regulator valve has longer length spools for increased valve support.

Check step location of OE retainer first, and note. Use same height step on replacement valve.

  • Pressure Regulator Valve
  • Pressure Regulator Spring
  • Boost Sleeve
  • Boost Valve


If you have any problem, please contact us immediately so we can resolve your issue. We have a technician available to assist you.

This item is packaged for Professional Transmission Shops. It may also be packaged in transmission fluid as part of the manufacturing and distribution process and in no way means the item to have been used. We do not stock or sell used electrical parts.

 

WARRANTY requests need to be accompanied with the appropriate code as diagnosed by a professional transmission shop.

Vehicles must be professionally diagnosed for solenoid failure prior to purchase.

We cannot guarantee any one item will fix all transmission problems.

Solenoid failure is often accompanied by additional failures for example valve body failures, internal wear or damaged hard parts.

 

APPLICATIONS:

Equinox 2005-09 V6 3.4L

Altima 2005-06 V6 3.5L

Maxima 2004-06 V6 3.5L

Quest 2004-08 V6 3.5L

Torrent 2006-10 V6 3.4L

9-3 2004-11 L4 2.0L

9-5 2002-09 L4 2.3L; V6 3.0L

Ion Sedan 2003-04 L4 2.2L

Vue 2002-06 V6 3.0L

XL-7 2007-08 V6 3.6L

C30 2008-11 L5 2.5L

C70 2001-04 L5 2.3L 2.4L

C70 2005-11 L5 2.5L

Cross Country 2002 L5 2.4L

S40 2001-04 L4 1.9L

S40 2005-11 L5 2.4L 2.5L

S40 2005-11 L5 2.5L

S40 2008 L5 2.5L (Diesel)

S60 2001-06 L5 2.3L 2.4L

S60 2003-09 L5 2.4L 2.5L

S60 2003-09 L5 2.5L

S70 2000 L5 2.4L

S70 2000 L5 2.4L

S80 2004-06 L5 2.5L

S80 2004-06 L5 2.5L

V40 2001-04 L4 1.9L

V50 2005-11 L5 2.4L 2.5L

V50 2005-11 L5 2.5L

V70 2000-07 L5 2.3L 2.4L 2.5L

V70 2000-05 L5 2.3L 2.4L 2.5L

XC70 2003-07 L5 2.5L

XC90 2003-06 L5 2.5L

XC90 2003-06 L5 2.5L

 

 

Parts ship daily from our distribution center.


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