SKU: 74597495593

CR2 25300 EPC Solenoid Blocker for 2011-2019 Duramax with Allison Transmission

Sale price$39.60 Regular price$44.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

CR2 25300 EPC Solenoid Blocker for 2011-2019 Duramax with Allison TransmissionCR2 25300 EPC Solenoid Blocker for 2011 2019 Duramax with Allison Transmission This will take place of your EPC Solenoid in the valve body, and it works as a fooler plug in the bore. The factory solenoid will snap back into the back of the plug and remain plugged into the factory wiring harness. The Factory LML L5P Allison transmission runs at 80 PSI of line pressure. On shifts the solenoid will spike the line pressure to 230 PSI and then kick it back

CR2 25300 EPC Solenoid Blocker for 2011-2019 Duramax with Allison Transmission

 

This will take place of your EPC Solenoid in the valve body, and it works as a fooler plug in the bore. The factory solenoid will snap back into the back of the plug and remain plugged into the factory wiring harness. The Factory LML/L5P Allison transmission runs at 80 PSI of line pressure. On shifts the solenoid will spike the line pressure to 230 PSI and then kick it back down to 80 PSI after the shift has been made. (not enough to hold any addition horsepower) The CR2 EPC blocker will make the transmission run at a static pressure of 230 PSI and will increase to 280 PSI off idle also eliminating pressure drop on shifts. This allows much more clamping force to the clutch packs in turn holding more horsepower and greatly improving shift quality and longevity of the transmission. The install is simple. It takes about one hour with no need to drop the valve body out of the transmission. Simply drain fluid, drop the pan remove the factory EPC Solenoid snap it into the back of the EPC Blocker and install the plug like you would the factory solenoid. Reinstall pan and fluid and you are done. Eliminates the need for line pressure increased transmission tuning.

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SKU: 74597495593

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smhism
Louisville, US
★★★★★ 5
Might buy a couple more.
Color: Demin Blue, Size: Large
In the process of losing weight and needed a nice looking shirt for work without spending a lot of money on something that will only fit for a few months. This did the trick! Fits well, looks nice, and at a great price.
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Reviewed in the United States on May 18, 2026
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Tommy I.
Lowell, US
★★★★★ 4
The fit is pretty good, it's acceptable.
Color: Navy Blue, Size: X-Large
Very good fit. The sleeves are long enough, I guess. I'll be rolling them up anyway. I would like it to be a tad bit longer though for tucking in. Other than that it feels nice and lightweight, can't wait to wash it so I can use it for going out.
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Reviewed in the United States on May 18, 2026
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José R.
Draper, US
★★★★★ 5
The product is good.
Color: Grey, Size: Medium
Good for all weather, don’t need to iron, I use it for all occasions specially for work, is good material, good quality, price is right, I like the color.
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Reviewed in the United States on May 31, 2026
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R and J Coe
Whiting, US
★★★★★ 5
Great for the Money
Color: Blue, Size: X-Large
Nice cut. Properly sized. Great product for the money.
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Reviewed in the United States on May 29, 2026
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Bobby
Omaha, US
★★★★★ 5
I like it!
Color: Khaki, Size: Large
Worth the price. Comfortable. Great assortment of colors.
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Reviewed in the United States on May 21, 2026

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