


Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold Rail
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold RailLS Fuel Pressure Regulator Plug with 1 8" NPT Gauge Port Installs in place of factory integrated fuel pressure regulator that is mounted to the fuel rail on truck intake manifolds *** Not compatible with Flex Fuel rails, see part number 551244 125NP *** Required when using an external fuel pressure regulator Compatible with (1999 2003) LS Gen 3 truck SUV round fuel rails Made in Wichita Kansas, from aerospace grade billet aluminum Includes plug and
Quick Dispatch:
Your Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold Rail orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold Rail ships.
Need Help?
Questions about Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold Rail, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Fuel Pressure External Regulator Plug w/ Gauge for LS Truck Intake Manifold Rail in your area.
Get Shipping Estimates
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
4.4 ★★★★★
Based on 2128 reviews
Sort
Product Reviews
★★★★★ 4
Works like a supplement
If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
Used to clean an O2 sensor
Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 3
Nothing
Didn’t work for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 1
It doesn’t work
This don’t work at all. I do not recommend. I use all four containers, and the light is still on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
2014 Ford Edge SEL
Worked like a charm! Used as directed, it cleared the P0420 & P0430 codes that were coming up on my OBD II scanner after a complete engine swap. Definitely recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026