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Sonnax 28999-01K

Boost Valve Kit Powerglide

Sonnax 28999-01K

852-28999-01K

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Estimated to ship on 05/22/18
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Sonnax 28999-01K Boost Valve Kit Powerglide $29.35
Boost Valve Kit
  • Powerglide

  • Sonnax 28999-01K Details

    Boost Valve Kits

    • Valve
    • Sleeve
    The OE boost sleeve wears from repeated oscillation of the boost valve. The wear allows leakage, reduces line pressure and contributes to line pressure instability. Additionally, the original steel parts are also prone to rust damage in vintage valve bodies. Sonnax offers a replacement boost assembly, 28999-01K for the aluminum Powerglide. This high performance design is the largest factory size (.489" dia. at the small spool), and has a lengthened critical spool diameter to provide better hydraulic sealing capabilities.

    • Large boost ratio
    • Lengthened critical spools provide better hydraulic seal

    Specifications:

    Manufacturer's Part Number:
    28999-01K

    The OE boost sleeve wears from repeated oscillation of the boost valve. This wear allows leakage, reduces line pressure and contributes to line pressure instability. Sonnax Boost Valve Kits replace worn components and incorporate a larger boost ratio, which increases line pressure and provides firmer shifts. Sonnax also offers replacement manual and regulator valves.

    Some parts are not legal for use in California or other states with similar laws / regulations