SonnaxSpring
Part #: S121741S-3 $16.70
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Description & Specs
Allison 1000/2000/2400 units commonly exhibit 3rd Gear starts and trouble codes related to a sticking E-shift valve. The low return rate of the OE spring combined with flashing or wear ridges forming in bore over time allow the valve to hang up, resulting in these concerns. Crack down on sticking valve action by reconditioning the bore and installing stronger Sonnax E-shift valve spring 37000-02. Bore sizing tool [37000-02BST] improves bore finish and removes flashing and ridges for smoother valve operation Stronger spring helps prevent valve binding
Spring; E-Shift Valve
| Name | Specs |
|---|---|
| Country of Origin (Primary) | US |
| Package UOM | Each |
| Quantity Per UOM | 1 |
| Weight | 0.77 |
| Weight UOM | Pounds |
Transmissions
| Name | Years |
|---|---|
| 1000/M74 | 2001 - 2006 |
| 1000 | 2003 - 2009 |
Vehicle Fitment
| Years | Vehicle | Drive Types |
|---|---|---|
| 2007 - 2009 | Chevrolet Silverado 3500 HD | RWD, 4WD |
| 2007 - 2007 | Chevrolet Silverado 3500 Classic | RWD, 4WD |
| 2001 - 2006 | Chevrolet Silverado 3500 | RWD, 4WD |
| 2007 - 2007 | Chevrolet Silverado 2500 HD Classic | RWD, 4WD |
| 2001 - 2009 | Chevrolet Silverado 2500 HD | RWD, 4WD |
| 2007 - 2009 | Chevrolet C5500 Kodiak | 4 X 4, 4 X 2 |
| 2007 - 2009 | Chevrolet C4500 Kodiak | 4 X 4, 4 X 2 |
| 2007 - 2009 | GMC Sierra 3500 HD | RWD, 4WD |
| 2007 - 2007 | GMC Sierra 3500 Classic | RWD, 4WD |
| 2001 - 2006 | GMC Sierra 3500 | RWD, 4WD |
| 2007 - 2007 | GMC Sierra 2500 HD Classic | RWD, 4WD |
| 2001 - 2009 | GMC Sierra 2500 HD | RWD, 4WD |
| 2007 - 2009 | GMC C5500 Topkick | 4 X 4, 4 X 2 |
| 2007 - 2009 | GMC C4500 Topkick | 4 X 4, 4 X 2 |
| 2006 - 2006 | Hummer H1 | 4WD |