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 Β· Estimated delivery Jul 16 - Jul 21

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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

Β 

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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Tony soliz
Boise, US
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Price and solid
Works great and been good and its been months now
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Reviewed in the United States on August 24, 2025
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Jacob Hailey
Chelsea, US
β˜…β˜…β˜…β˜…β˜… 1
Broke after less than 2 months
Initially worked great but now the taking power from the coil doesn’t break the contact and I have to tap it with a screwdriver to get it to disengage
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Reviewed in the United States on March 10, 2023
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Cj
Battle Creek, US
β˜…β˜…β˜…β˜…β˜… 5
Solid cables
Color: Red/Black, Size: 0AWG-25FT Each
Good set of cables
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Reviewed in the United States on April 13, 2026
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Travis Moore
Massapequa, US
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love it
Color: Red/Black, Size: 0AWG-25FT Each
quick and love the product
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Reviewed in the United States on May 26, 2026
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Jerry
Omaha, US
β˜…β˜…β˜…β˜…β˜… 5
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Color: Red/Black, Size: 0AWG-25FT Each
Excelente cable para mi amplificador
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Reviewed in the United States on April 15, 2026

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