Product Overview 4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (OEM Ratio) N.I. S56741F (Sonnax 37947-01K) Reviews (No reviews yet) Write a Review
4R44E, 5R55E Boost Valve & Sleeve Kit (Increased Ratio) 4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (Increased Ratio)(1995-UP) N.I.S56741FA (Sonnax 37947-03K) Part #: S56741FA MSRP: Was: Now: $112.99 Decrease Quantity: Increase Quantity: Add to Cart
4R44E, 4R55E, 5R55E Boost Valve Kit, w/ Sleeve 4R44E, 4R55E, 5R55E Valve Body Components-Boost Valve Kit, w/ Sleeve(1995-Up) 56741F (37947-01K) Part #: 56741F MSRP: Was: Now: $37.99 Decrease Quantity: Increase Quantity: Add to Cart
4R44E, 5R55E Sleeve Kit, Pressure Regulator Valve 4R44E, 4R55E, 5R44E, Sleeve Kit, Pressure Regulator Valve (req T-37947-TL5) (1995-Up) 56741P-2K (37947-05K)(Sonnax) Part #: 56741P-2K MSRP: Was: Now: $44.99 Decrease Quantity: Increase Quantity: Add to Cart
4R44E, 5R55E TCC Regulator Valve (OEM Size) 4R44E, 4R55E, 5R44E, 5R55E TCC Regulator Valve (OEM Size)(1995-Up) S56741Q-1 (Sonnax 37947-38) Part #: S56741Q-1 MSRP: Was: Now: $16.99 Decrease Quantity: Increase Quantity: Add to Cart
AOD Boost Valve & Sleeve Kit (OEM Ratio, “Factory” Style) 76990- Boost Valve & Sleeve Kit (OEM Ratio, “Factory” Style) 76990-03K Part #: 76741FA Decrease Quantity: Increase Quantity: