MaxTow Support

<img src="https://attachments.gorgias.help/lrg3N7Ay8Rn7DnR8/hc/VR1W92RO8g7M8yBk/2025040716-7240742a-61e0-49f2-a1e3-9eeea9e2a4d8-ab17b2e9-f67f-41a1-806f-5b9b54446156.jpeg" style="width: 300px;" class="fr-fic fr-dib">Accessory:&#xA0;Fuel Rail Adapter -4 AN Thread Adapter for GM Vehicles Product SKU:&#xA0;MT-FA-FR-GMHave all of the information needed to install your GM Fuel Rail Thread Adapter which is designed for MaxTow <a href="https://www.maxtow.com/fuel-pressure-gauges/" target="_blank" rel="noopener noreferrer" id="isPasted">Fuel Pressure Gauges</a>? Our <a href="https://www.maxtow.com/gauge-accessories/" target="_blank" rel="noopener noreferrer">Accessories</a>&#xA0;are&#xA0;a great option for simplifying and speeding up installation of Double Vision&#xAE; and MaxTow Match <a href="https://www.maxtow.com/gauge-types/" target="_blank" rel="noopener noreferrer">Gauges</a>. As a reminder, Free Lifetime Tech Support also comes standard with purchases so we&apos;re here to assist if you have any questions along the way!MaxTow&apos;s -4 AN Fuel Rail Adapter is designed to replace the Schrader valve on your fuel rail which allows you to easily install your fuel pressure sending unit. This adapter easily fits into any GM 5.3L &amp; 6.0L Fuel Rail for quick and easy monitoring of your aftermarket Fuel Pressure Sensors. To install, remove the Schrader valve and thread the adapter for quick and seamless installation.(Click the link below to view our online Instructions)<a class="pdf-download-btn" href="https://www.maxtow.com/content/instructions/Accessories/-4-AN-Fuel-Rail-Adapter.pdf" rel="noopener noreferrer" target="_blank">Chevrolet GM LS Engines Fuel Rail -4AN Thread Adapter</a>

MaxTow's -4 AN Fuel Rail Adapter is designed to replace the Schrader valve on your fuel rail which allows you to easily install your fuel pressure sending unit.

Fuel Rail Adapter -4AN Thread Adapter for GM Vehicles

Product Instructions

Accessories

Is the 1/16-27 NPT Universal Transmission Test Port Extender for my vehicle?

What is a GM Duramax Allison 1000 Transmission Line T-Fitting Adapter?

What is a Dodge Ram Cummins Transmission Line T-Fitting Adapter?

What is the Boost T-Fitting Adapter and will it fit my vehicle?

What is a Drill and Tap Kit?

What is a 3/8" Transmission Line T-Fitting Adapter?

Why do I need a 1/8 NPT Diesel Snubber Valve for Fuel Pressure?

Why do I need a Cummins 12 Valve Fuel Pressure Banjo Bolt Adapter?

Why do I need a Cummins 24 Valve Fuel Pressure Banjo Bolt Adapter?

What is a snubber valve and why do I need it?

What size Expandable Circuit will I need for my vehicle?

Will I need a Chevy LS Engine Fuel Rail Adapter?

Do I need a Chevy GM Duramax 6.6L Diesel Fuel Pressure Adapter?

Do I need a Fuel Pressure Adapter for my Ford 7.3L/6.0L Power Stroke?

Is the Air Intake Heater Boost Plug Adapter required for installation?

Does the Transmission Test Port Extender fit my vehicle?

Is the Fuel Pressure Big Line Kit required for installation?

What is the Fuel Line Fuel Pressure T-Fitting Adapter used for?

Do I need a Boost Bolt Thread Adapter for my Boost Gauge installation?

Can the Gauges Pods be painted?

What material are the Gauge Pods made out of?

Will a universal pillar pod fit my vehicle?

What does Complete Replacement Mean?

Does the Triple Pillar pod replace my existing pillar?

Gauge Pods

What is the difference between HPOP and regular Oil Pressure Gauge?

Can I turn off the LED backlighting of my gauge and still have it function properly?

Do I need a Boost/Vacuum Gauge, or Boost Only?

Do the gauges come with everything I will need for installation?

I have a returnless fuel system, can I install a fuel pressure gauge?

What is the warranty on the Bosch O2 Sensor?

Does the gauge change color?

Does the boost gauge come with a hose or sensor?

What is the button on the front of the gauge for if the gauge does not change color?

Can I connect my MaxTow gauge to other companies sensors?

Gauges

I've received my tracking information but when I try to track my order, no information is available. What is the problem?

What payment options can I use when checking out?

How much will shipping cost?

Can I pick up my order from your location?

When will my order ship?

How long will it take my order to arrive?

How can I apply a discount to my order?

Will I be charged Sales Tax on my order?

How long will it take to receive my refund?

How do I return my order and get a refund?

When will my order ship if I place it on a Friday?

What happens if my package is returned due to being undeliverable as addressed?

How can I receive coupon codes?

What if I place a duplicate order?

What do I do if I receive the wrong product?

What if I refuse my delivery?

Do all orders over $50 qualify for Free Shipping?

Can I ship to an address that is different than my billing address?

I accidentally ordered the wrong product, what should I do?

Why did I have to pay customs and brokerage fees upon delivery?

What is your shipping policy for International orders?

Am I responsible for shipping when I need to set up a warranty claim?

What is the exchange policy?

ONE YEAR NON-TRANSFERABLE LIMITED WARRANTY AND DISCLAIMER

Can I make changes after I have placed my order?

How can I cancel my order?

What is the return policy on your products?

How do I know if my order is coming UPS or USPS?

Will my order require a signature upon delivery?

Do you offer a catalog?

Do you ship internationally?

What is the warranty policy on your products?

What customs fees will I be responsible for with UPS Standard Shipping?

Do you offer wholesale accounts?

Customer Service

What is the degree range for a transmission gauge?

Should I use Teflon tape on the threads of the sending units I am installing?

What is the proper way to tap?

What if I cannot find an open firewall?

How much should I tighten the EGT probe fitting?

Is there a particular type of anti seize I should use?

How deep should my EGT probe be into the manifold?

Should my EGT probe be installed before or after the turbo?

How do I install the EGT probe that came with my Exhaust Gas Temperature Gauge?

Should I use Teflon Tape when installing the Banjo Bolt and Snubber Valve?

Is there another fuse I can utilize other than the fuse places mentioned in the instructions?

What is the recommended install location for the EGT probe?

What color is the signal wire on the transmission temperature gauge?

Does the Steel Braided Cable have to be away from direct heat?

Do I have to jack up my vehicle to access the test port location?

What is the difference between the 30,000PSI Fuel Rail Pressure and the 30/100PSI Fuel Pressure?

Do I have to use the expandable circuits?

Where is the best place to connect the ground wire?

I have finished the install, and checked for loose connections and leaks - but the gauges are still not powering on. What should I do?

Where are the best locations to install the screws to secure the pod?

Do you need to remove the intake manifold when drilling and tapping?

What is the Best Boost Gauge installation? Boost bolt vs Drilling intake

My Pressure Gauge stays pegged out and all the wires are properly connected, what is the issue?

How difficult is the installation of the gauges?

What will happen if there was damage done during the installation or removal?

How accurate will the reading be at my test port location?

Should I use thread sealant, or teflon tape to install the fuel pressure sensor?

Can I attach the dimmer wire to the adjustable light dimming settings used for the lighting in the cabin of the vehicle/dash?

What if the pod is not sitting correctly?

What size drill and tap do I need to tap my Manifold?

What adapters do I need to install a Fuel Pressure Gauge in my Chevy Duramax?

What adapters do I need to install a Fuel Pressure Gauge in my Ford Super Duty Powerstroke?

What adapters do I need to install a Fuel Pressure Gauge in my Dodge Ram Cummins Diesel?

I need to extend the wires on my sending unit, what size wire should I use?

How do I install my Boost Gauge on my diesel truck?

Where can I install my Fuel Pressure Sending Unit?

Where would I install my Transmission Temperature Sensor?

Can I reinstall the factory Intake Air Heater Plug at any time?

Will the sensor wires reach my mounting location?

I did not purchase the HPOP Gauge Pigtail Harness, can I still install this gauge on my 7.3L/6.0L Ford Powerstroke?

Why is my gauge flashing?

Why is my gauge maxed out?

Why does the needle and digital readout not match?

Why does the wiring harness not match my other gauges?

Why does the MaxTow gauge have to be connected to a 12 volt constant source aswell as a 12 volt switch source?

Why is there no option for a sandwich plate adapter if the instructions say to use one?

Installation and Troubleshooting

FAQs

MaxTow Match 60 PSI Boost Gauge for 3rd Gen Cummins

MaxTow Match 1500 F & 2200 F Pyrometer EGT Gauge for 3rd Gen Cummins

MaxTow Match 30 PSI Fuel Pressure Gauge for 3rd Gen Cummins

MaxTow Match Transmission Temperature Gauge for 3rd Gen Cummins

MaxTow Match 30,000 PSI Fuel Rail Pressure Gauge for 3rd Gen Cummins

MaxTow Match for 3rd Gen Cummins

MaxTow Match 60 PSI Boost Gauge for 4th Gen Cummins

MaxTow Match 1500 F & 2200 F Pyrometer EGT Gauge for 4th Gen Cummins

MaxTow Match 30 PSI Fuel Pressure Gauge for 4th Gen Cummins

MaxTow Match Transmission Temperature Gauge for 4th Gen Cummins

MaxTow Match 30,000 PSI Fuel Rail Pressure Gauge for 4th Gen Cummins

MaxTow Match for 4th Gen Cummins

30 PSI Boost/Vacuum

35 PSI Boost Gauge

60 PSI Boost Gauge

100 PSI Boost Gauge

1500° F Pyrometer EGT Gauge

2200° F Exhaust Gas Temperature Gauge

15 PSI, 30 PSI & 100 PSI Fuel Pressure Gauge

Oil Pressure Gauge

Transmission Temperature Gauge

Water Temperature Gauge

Oil Temperature Gauge

30,000 PSI Fuel Rail Pressure Gauge

High Pressure Oil Pressure HPOP Gauge

Nitrous Pressure Gauge

Air Pressure Gauge

35 PSI Coolant Pressure Gauge

Differential Temperature Gauge

Intake Temperature Gauge

Wideband Air/Fuel Ratio Gauge

Volt Gauge

Tachometer Gauge

Diesel Set Instructions

Fuel Level Gauge

Exhaust Pressure Gauge

Ambient Air Temperature Gauge

Double Vision Series

Quad Gauge Dashboard Pod for 1986-1993 Dodge Ram Cummins

Triple Pillar Gauge Pod for 1998-2002 Dodge Ram Cummins

Pillar Gauge Pod for 2003-2009 Dodge Ram Cummins

Triple Pillar Gauge Pod for 2010-2018 Dodge Ram Cummins

Triple Gauge Dashboard Panel Mount Pod for 2003-2005 Dodge Ram Cummins

Triple Gauge Dashboard Pod for 1999-2007 Ford Super Duty

Triple Pillar Gauge Pod for 2011-2016 Ford Super Duty Power Stroke

Triple Pillar Gauge Pod for 2009-2014 Ford F-150

Pillar Gauge Pod for 2007-2013 Chevy & GMC Silverado / Sierra

Triple Pillar Gauge Pod for 2014-2019 Chevy & GMC Silverado / Sierra

Triple Gauge Pillar Pod for 1982-1986 Ford F-Series

Triple Gauge Under Dashboard Pod for 1999-2004 Ford Super Duty

Single Gauge Steering Column Pod for 1999-2007 Ford Super Duty

Triple Pillar Gauge Pod for 2017-2020 Ford Super Duty Power Stroke

Universal Single Gauge Swivel Pod

Universal Single Gauge Pillar Pod

Universal Dual Gauge Pillar Pod

Universal Triple Gauge Pillar Pod

Dashboard Gauge Pod for 1986-1993 Dodge Ram Cummins

Triple Gauge Pillar Pod for 1973-1987 Chevrolet C10

Dual Steering Column Gauge Pod for 2003-2009 Dodge Ram Cummins

Boost Gauge Bolt Thread Adapter for 5.9L 24v Cummins

Boost Bolt Thread Adapter for GM 6.5L Turbo Diesel

Dodge Ram Cummins 24 Valve Fuel Pressure Banjo Bolt Thread Adapter

Dodge Ram Cummins 12 Valve Fuel Pressure Banjo Bolt Thread Adapter

1/8-27 NPT Diesel Fuel Pressure Snubber Valve

Air Intake Heater Boost Plug Thread Adapter

Ford 7.3L Power Stroke Fuel Pressure Thread Adapter

Ford 6.0L Power Stroke Fuel Pressure Thread Adapter

Chevrolet & GM Duramax 6.6L Diesel Fuel Pressure Thread Adapter

Fuel Pressure Thread Adapter for GM 6.5L Turbo Diesel

Chevrolet GM LS Engines Fuel Rail -4AN Thread Adapter

3/8” Fuel Line Fuel Pressure T-Fitting Adapter

Sensor Relocation Hose Kit

1/8-27 NPT Transmission Test Port Extender

1/16-27 NPT Universal Transmission Test Port Extender

Dodge Ram Cummins Transmission Line T-Fitting Adapter

GM Duramax Allison 1000 Transmission Line T-Fitting Adapter

Fuel Rail Adapter -4AN Thread Adapter for GM VehiclesUpdated 24 days ago