Description: 5L40-E, 5L50-E Boost Valve Kit Part No. 55209-04K OE ratio with .474" & .441" dia. valve spools. Vehicles with GM 5L40-E and 5L50-E transmissions are prone to poor line rise or high Reverse pressure problems causing poor shift quality and clutch failure due to leakage at the boost valve assembly. Sonnax offers two boost valve kits: the 55209-01K performance ratio (higher line rise and firmer shifts) and the OE ratio 55209-04K for factory performance. Hardcoat anodized aluminum valves combat premature wear Boost sleeves are made from alloy aluminum specifically designed to resist wear Increased performance ratio 55209-01K or OE ratio 55209-04K assemblies are available Contents Valve Sleeve O-Ring Specs Dia.: 0.474" Dia.: 0.441"
Price: 49.25 USD
Location: Columbus, Ohio
End Time: 2023-12-25T17:43:27.000Z
Shipping Cost: N/A USD
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Item Specifics
Return shipping will be paid by: Seller
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Manufacturer Part Number: 55209-04K
Brand: Sonnax
Fitment Type: Performance/Custom
