Exergy 11-16 Duramax LML CP4.2 Pump
Regular price
$1,650.00
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
When the rail pressure falls off at the top of the run, the injection pump is out of capacity — no tune recovers that. The Exergy 11-16 Duramax LML CP4.2 Pump (store SKU xrgE04 10504) restores the volume the Duramax LML needs to hold pressure under load.
- CP4.2 platform — confirm which pump your truck left the factory with, since the families do not interchange.
- Tested through its full operating range before it ships, so it arrives as a known quantity rather than an unknown one you commission on the truck.
- Feeds rail pressure rather than replacing tuning — pair it with a calibration that expects the extra volume.
Fits: 2011-2016 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD with the 6.6L Duramax LML.
Perfect for a build that has outgrown the factory pump and is losing rail pressure at the top end.
Shipping Height: 10.4
Shipping Length: 11.0
Shipping Width: 10.5