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22771A-13 - Sonnax Oversized 4-Spool Switch 42RE 42RH 44RE 44RH 46RE 46RH 47RE 47RH 48RE A727 A904 - Dodge Chrysler Plymouth Mopar

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SKU
22771A-13
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Sonnax
Regular Price $22.23

Sonnax Oversized 4-Spool Switch 42RE 42RH 44RE 44RH 46RE 46RH 47RE 47RH 48RE A727 A904 - Dodge Chrysler Plymouth Mopar

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Sonnax Oversized 4-Spool Switch 42RE 42RH 44RE 44RH 46RE 46RH 47RE 47RH 48RE A727 A904 - Dodge Chrysler Plymouth Mopar

 

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904

Oversized 4-Spool Switch Valve
Part No. 22771A-13

Fits '93-later, 4-spool valves only.

 

Bore wear toward the spring end reduces converter release oil. This affects converter charge at idle, causing engine stumble, loss of lube oil flow, overheating and poor performance. Bore wear at the inboard end creates poor TCC apply or a reduction in line pressure boost. Switch valve bores with excessive wear can now be repaired with Sonnax oversized switch valve 22771A-13. If the bore is not excessively worn, install Sonnax standard OE-size switch valve kit 22771A-01. Both the oversized and standard size Sonnax valves will improve the timing and flow to the apply and release circuits.

Valve controls TCC release oil venting during apply for a firmer apply and no shudder

Stem length, spool spacing and exhaust timing have been improved to ensure quicker stroke and less valve bounce

Salvages worn bores

 

These kits can only be used to replace 4-spool design or OE valves or bore repair with OE 4-spool design.

No tooling required for direct replacement 22771A-01.

 

Symptoms:

Lockup shudder

Overheated converter

Low cooler flow

Soft TCC apply

Build up of release pressure during lockup

Cause:

The OEM valve stroke is insufficient to control circuit timing of applied vs. release pressures and the bore is worn.

Correction:

Salvage the worn bore and improve timing and flow to the apply and release circuits with this improved oversized valve.
More Information
ManufacturerSonnax
High PerformanceNo
ConditionNew Aftermarket
Item ReturnsThis item can be returned