6.7 Cummins Grid Heater Upgrade

A 6.7 Cummins Grid Heater Upgrade is a modification to the existing diesel engine in order to improve its performance and efficiency. This upgrade involves replacing the stock grid heater with one that has a higher wattage rating, allowing for more heat production during cold weather conditions. Additionally, it also increases air flow through the intake manifold, resulting in an improved fuel economy and better overall performance.

In addition to this upgraded grid heater, other modifications are often made such as installing an aftermarket exhaust system or upgrading the turbocharger for increased power output. The installation process is relatively simple and can be done by anyone who has basic mechanical knowledge of their vehicle’s components. Ultimately, this upgrade will provide your truck with improved power output while also increasing its reliability and longevity over time.

An upgrade to the 6.7 Cummins Grid Heater can be a great way to improve your engine’s cold weather performance and reliability. Not only will it provide superior heat output, but the improved durability of this upgraded grid heater ensures that your truck will stay warmer for longer periods of time in even the coldest temperatures. The increased efficiency of this part also reduces fuel consumption, meaning you’ll save money on fuel costs as well.

With an upgraded 6.7 Cummins Grid Heater, you can rest assured that your diesel engine is ready to take on whatever winter throws at it!

6.7 Heater Grid RELOCATION *Pt. 1*

What Does the Grid Heater Do on 6.7 Cummins?

A grid heater is an important component on a 6.7 Cummins engine, which helps to ensure the engine starts in cold temperatures. The grid heater serves as a preheater for the air intake system and the fuel injectors. The grid heater’s job is to warm up the coolant that circulates through its core before being sent into the cylinder heads and block of an engine.

This allows for quicker starting at colder temperatures, as well as optimal performance during winter months or when operating in cold climates. Grid heaters also help reduce engine wear-and-tear by allowing more efficient combustion cycles due to higher temperature levels within the cylinders. When replacing parts on your 6.7 Cummins it is important to check if a new grid heater needs to be installed since they can become damaged over time and need regular maintenance or replacement depending on usage and conditions encountered while driving or working with your vehicle/engine setup.

Is a Grid Heater Better Than Glow Plugs?

When it comes to heating your car, there are two options: a grid heater and glow plugs. Grid heaters have been around for decades, while glow plugs are relatively new technology. Both offer different benefits so which one is better?

That depends on the individual situation. Grid heaters use an electrical current to generate heat by passing through metal coils or plates arranged in a grid pattern. This type of heater is generally less expensive and more reliable than glow plugs since they don’t require any additional parts such as sensors or relays, making them great for older vehicles that may not have access to these types of accessories.

On top of that, grid heaters can provide faster warm up times compared to glow plugs due to their higher wattage output over a larger area coverage when compared to smaller and more localized focus points with the latter option. However, some people feel that grid heaters can be too noisy for their liking as well as having the potential risk of electric shocks if installed incorrectly or damaged internally from wear and tear over time. Glow plugs work by using electricity from your vehicle’s battery pass through a thin wire coil heated element which then ignites fuel inside the engine cylinder creating combustion resulting in increased temperatures necessary for efficient operation of an automobile engine during cold starts especially at lower temperatures (below -10 degrees Celsius).

Compared with other alternatives like diesel pre-heaters or catalytic converters, this type of system is much simpler while also being very energy efficient as they only draw power when needed instead of constantly running like other systems would tend do; however they still require periodic maintenance depending on how often you drive in order to ensure its continued dependability overtime since their components can break down faster due lack durability issues associated with high temperature operations. In addition, although these devices take longer than usual before providing sufficient warmth within an engine block during colder months it does enable quicker start-ups even at extremely low outside temperatures increasing performance efficiency overall unlike most traditional heating methods used today which tend lose effectiveness under extreme conditions like those found winter season environments commonly experienced within certain regions globally . Overall both grid heaters and Glow Plug systems each offer unique advantages but ultimately it will come down user preference based upon what kind application / need required out given product whether be economical longevity purposes , environmental concerns etcetera .

Therefore anyone looking purchase either type device should make sure research all available options carefully before deciding best fit specific automotive requirements ensuring maximum satisfaction long run !

What is the Purpose of a Grid Heater on a Diesel Engine?

A grid heater is an essential component of a diesel engine. It is used to preheat the incoming fuel and air before it enters the engine’s cylinders, allowing for more efficient combustion and better performance from the engine. The purpose of a grid heater is to quickly warm up the fuel during colder temperatures so that it can be burned more efficiently in the engine.

This ensures that your engine starts quickly and runs smoothly at all times, even when cold outside temperatures make it difficult for a diesel motor to start or run properly. Grid heaters are also important for meeting emission requirements with their ability to reduce carbon dioxide emissions by enhancing combustion efficiency in diesel engines. By increasing combustion efficiency, fewer pollutants are emitted from exhaust pipes compared with engines without this device installed.

In addition, grid heaters can increase fuel economy by up to 10%, which ultimately saves money over time on fuel costs while reducing environmental impact due to fewer emissions being released into the atmosphere.

What is the Code P2609 on a 6.7 Cummins?

The code P2609 on a 6.7 Cummins is an indication of an engine misfire. A misfire occurs when the fuel-air mixture within the combustion chamber does not ignite as expected, resulting in a loss of power and performance from the engine. This can occur for several different reasons, such as spark plug or coil malfunction, low fuel pressure, clogged air filter, or vacuum leak.

It’s important to address this issue right away since it can cause further damage to components like exhaust valves and turbochargers if left unchecked. The first step is to identify what’s causing the misfire by retrieving trouble codes on your diagnostic scanner; this will help you pinpoint which area needs attention so you can take corrective action quickly and efficiently.

6.7 Cummins Grid Heater Upgrade

Credit: www.dieselpowerproducts.com

6.7 Cummins Grid Heater Fix

The 6.7 Cummins grid heater is a vital component of your diesel engine that helps maintain optimal temperature during cold starts. If it isn’t working properly, the engine may struggle to start or take longer than usual to warm up. Luckily, there are easy fixes for this issue including replacing the faulty parts and cleaning out debris from the heater core.

Additionally, you can also install an aftermarket alternative such as a block heater which will provide additional warmth in extreme temperatures and extend the life of your engine significantly.

6.7 Cummins Grid Heater Delete Pros And Cons

A 6.7 Cummins Grid Heater Delete is a popular modification among diesel owners looking to increase the reliability and performance of their engine. The grid heater delete removes the grid heater, which was designed to help warm up the engine faster on cold starts but can be prone to failure. While it may provide some minor performance improvements due to reduced weight and drag, there are some potential drawbacks as well; such as increased wear and tear on other components like the alternator or injectors, less reliable cold-start capability, and an increased risk of turbocharger stalling or failure due to lack of heat for oil lubrication.

Ultimately you should weigh these pros and cons before deciding if this kind of modification is right for your vehicle.

6.7 Cummins Grid Heater Problems

Due to the high temperatures and pressure involved in the operation of a 6.7 Cummins engine, it is not uncommon for grid heaters to suffer from problems that can cause poor performance or even complete failure. Common issues with these heaters include rusting components due to moisture build-up, clogged fuel filters, and faulty electrical wiring connections. If you are experiencing any problems with your 6.7 Cummins Grid Heater, it is important to have them checked out by a qualified mechanic as soon as possible in order to prevent further damage or potential danger.


In conclusion, upgrading the grid heater on a 6.7 Cummins engine is a great way to get improved performance and fuel economy. Not only will it provide better cold starting, but also reduce emissions when the engine is running at colder temperatures. It’s an easy DIY project that requires minimal tools and can be completed in about two hours or less.

As with any upgrade, always use caution when working around high-voltage components and follow proper safety procedures to ensure your safety during installation.


  • Zayn

    Zohn Zayn Smith is a seasoned automotive enthusiast with over 15 years of experience in the industry. As the Founder and Chief Editor of Truckguider, he specializes in Dodge Ram models, including the Ram 1500 and Ram 2500. His deep understanding of these trucks makes him a trusted authority on everything from performance and maintenance to towing capabilities.

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