![Sonnax Valve Kit S74741QK](https://cdn.transend.us/img/S74741QK_P01_Front_33729.webp)
SonnaxValve KitPart #: S74741QK
Description & Specs
In GM 4L60-E, 4L65-E and 4L70-E unit, severe wear of the TCC regulator valve bore is caused by oscillation of the OE valve allows regulated converter apply pressure to exhaust. This is a primary cause for TCC-related slip code P1870 and overheated converters. Exhausting apply pressure also diminishes line pressure, which can result in burnt clutches. Excess wear at the isolator valve bore reduces TCC apply pressure.Reconditioning the bore and installing Sonnax TCC regulator and isolator valve kit 77754-03K restores normal TCC operation by shoring up the hydraulic integrity of this circuit. 10% Higher apply pressure Isolator valve lengthened to operate in unworn portions of the bore Sleeve manufactured from highly wear-resistant aluminum Hardcoat anodized aluminum valves combat premature wear Annular grooves help center valves in bore to reduce future side-load wear
Valve Kit; Torque Converter Clutch; Regulator; Non-EC3 Units
Name | Specs |
---|---|
Package UOM | Each |
Quantity Per UOM | 1 |
Weight | 1.10 |
Weight UOM | Pounds |
Transmissions
Name | Years |
---|---|
4L60-E | 1993 - 1997 |
Vehicle Fitment
Years | Vehicle | Drive Types |
---|---|---|
1994 - 1996 | Buick Roadmaster | RWD |
1994 - 1996 | Buick Commercial Chassis | RWD |
1994 - 1996 | Cadillac Fleetwood | RWD |
1994 - 1996 | Cadillac Commercial Chassis | RWD |
1995 - 1997 | Chevrolet Tahoe | RWD, 4WD |
1993 - 1994 | Chevrolet S10 Blazer | RWD, 4WD |
1993 - 1997 | Chevrolet S10 | FWD, RWD, 4WD |
1993 - 1996 | Chevrolet K2500 Suburban | 4WD |
1993 - 1997 | Chevrolet K2500 | 4WD |
1993 - 1997 | Chevrolet K1500 Suburban | 4WD |
1993 - 1997 | Chevrolet K1500 | 4WD |
1994 - 1996 | Chevrolet Impala | RWD |
1993 - 1995 | Chevrolet G30 | RWD |
1993 - 1995 | Chevrolet G20 | RWD |
1993 - 1995 | Chevrolet G10 | RWD |
1996 - 1997 | Chevrolet Express 2500 | RWD |
1996 - 1997 | Chevrolet Express 1500 | RWD |
1994 - 1997 | Chevrolet Corvette | RWD |
1994 - 1996 | Chevrolet Caprice | RWD |
1994 - 1997 | Chevrolet Camaro | RWD |
1993 - 1996 | Chevrolet C2500 Suburban | RWD |
1993 - 1997 | Chevrolet C2500 | RWD |
1993 - 1997 | Chevrolet C1500 Suburban | RWD |
1993 - 1997 | Chevrolet C1500 | RWD |
1993 - 1997 | Chevrolet Blazer | AWD, RWD, 4WD |
1993 - 1997 | Chevrolet Astro | AWD, RWD |
1993 - 1997 | GMC Yukon | RWD, 4WD |
1993 - 1993 | GMC Typhoon | AWD |
1993 - 1997 | GMC Sonoma | RWD, 4WD |
1996 - 1997 | GMC Savana 2500 | RWD |
1996 - 1997 | GMC Savana 1500 | RWD |
1993 - 1997 | GMC Safari | AWD, RWD |
1993 - 1996 | GMC K2500 Suburban | 4WD |
1993 - 1997 | GMC K2500 | 4WD |
1993 - 1997 | GMC K1500 Suburban | 4WD |
1993 - 1997 | GMC K1500 | 4WD |
1993 - 1997 | GMC Jimmy | AWD, RWD, 4WD |
1993 - 1995 | GMC G3500 | RWD |
1993 - 1995 | GMC G2500 | RWD |
1993 - 1995 | GMC G1500 | RWD |
1993 - 1996 | GMC C2500 Suburban | RWD |
1993 - 1997 | GMC C2500 | RWD |
1993 - 1997 | GMC C1500 Suburban | RWD |
1993 - 1997 | GMC C1500 | RWD |
1996 - 1997 | Isuzu Hombre | RWD |
1993 - 1997 | Oldsmobile Bravada | AWD |
1994 - 1997 | Pontiac Firebird | RWD |