Sonnax 77917-06 700R4 2004R Transmission Pressure Regulator Valve, (Oversized)
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Sonnax 77917-06 700R4 2004R Transmission Pressure Regulator Valve, (Oversized)

$23.41
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Brand: SonnaxOther Part Number: S74507P-1Type: Pump ComponentInterchange Part Number: S74507P-1Items Included: Pressure RegulatorManufacturer Part Number: 77917-06Universal Fitment: YesVintage Part: NoPerformance Part: Yes 200-4R, 4L60 Transmission Oversized Pressure Regulator ValvePart No. 77917-06 Tooling Required: 77917-TL 77917-TLC A worn OE pressure regulator valve can be detected in two ways. The first is a dynamometer test that reveals low line pressure during boost conditions (look for 50-100 psi less than specified in Reverse). The second is vehicle symptoms such as clutch slippage, reverse chatter and 3-4 clutch failure. Any of the above problems indicate bore wear that should be addressed. To address pressure regulator leakage in GM 4L60, 200-4R pump covers, Sonnax offers oversized pressure regulator valve 77917-06. The Sonnax valve permits pump covers to

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