Category: Automotive Parts and Accessories When it comes to maintaining the performance and longevity of a vehicle's engine, one of the most important components is the fuel system. The fuel return line plays a crucial role in this process by returning excess fuel from the injectors back to the fuel tank. However, over time, these lines can become clogged or damaged, which can lead to decreased performance and even more serious issues if left unaddressed. In order to address these potential problems, there are a variety of aftermarket products available on the market that offer replacements for the fuel return line. These products come in different forms such as kits with multiple parts or individual components like clips. In this review, we will take a closer look at some of the best options available and provide our thoughts on their quality, performance, and value. 1. Genuine Bosch OEM Diesel Fuel Return Line Replacement Kit for LLY/LBZ/LMM Duramax Injectors (Set of 2) The first product we will look at is the Genuine Bosch OEM Diesel Fuel Return Line Replacement Kit for LLY/LBZ/LMM Duramax Injectors. This kit includes two replacement lines that are designed to fit a variety of different vehicles, including those with LLY, LBZ, and LMM engines. One of the main advantages of this product is its OEM (Original Equipment Manufacturer) certification. This means that it has been made by Bosch, which is one of the most trusted brands in the automotive industry when it comes to engine parts. Additionally, these lines are designed to fit perfectly and provide a smooth, reliable connection between the injectors and fuel tank. Another benefit of this product is its durability. The lines are made from high-quality materials that are built to last, which means they will not crack or leak over time like some aftermarket products might. This can save you money in the long run by preventing costly repairs down the line. Overall, we would highly recommend this product for anyone looking for a reliable and durable replacement fuel return line for their LLY/LBZ/LMM Duramax engine. It is well-priced and offers excellent value for its quality and performance. 2. Chevy Duramax 6.6L LLY-LBZ-LMM INJECTOR RETURN LINE KIT The second product we will look at is the Chevy Duramax 6.6L LLY-LBZ-LMM INJECTOR RETURN LINE KIT. This kit includes all of the parts needed to replace the fuel return line on a vehicle with a 6.6L Duramax engine, including clips and other necessary components. One of the main advantages of this product is its compatibility with a wide range of vehicles. It can be used on LLY, LBZ, and LMM engines, which means it can save you money if you need to replace multiple lines at once. Additionally, the kit includes all of the necessary clips and other components needed for installation, making it easy to do yourself or take it to a professional mechanic. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, the lines are made from high-quality materials that are built to last, so they will not crack or leak over time like some cheaper options might. Overall, we would highly recommend this product for anyone looking for an affordable and reliable replacement fuel return line kit for their 6.6L Duramax engine. It is well-priced and offers excellent value for its quality and performance. 3. Return Line Clips for LLY LBZ LMM Injectors (set of 8) fits 2005-2010 Duramax GM 97359750 The third product we will look at is the Return Line Clips for LLY LBZ LMM Injectors. This set includes eight clips that are designed to fit a variety of different vehicles, including those with LLY, LBZ, and LMM engines. These clips are made from high-quality materials that are built to last, which means they will not crack or break over time like some cheaper options might. One of the main advantages of this product is its compatibility with a wide range of vehicles. It can be used on 2005-2010 Duramax engines, which means it can save you money if you need to replace multiple lines at once. Additionally, the clips are easy to install and require no special tools or skills, making them ideal for DIY enthusiasts. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, these clips are designed to fit perfectly and provide a smooth, reliable connection between the injectors and fuel tank. Overall, we would highly recommend this product for anyone looking for an affordable and reliable set of return line clips for their LLY/LBZ/LMM Duramax engine. It is well-priced and offers excellent value for its quality and performance. 4. Diesel Fuel Line Return Kit With Clips For 2004.5-2010 Chevrolet Chevy GMC Silverado Sierra 2500 HD 3500 6.6L Duramax Diesel LLY LBZ LMM Replaces OE# 98062291 97328733, 97363195 The fourth product we will look at is the Diesel Fuel Line Return Kit With Clips For 2004.5-2010 Chevrolet Chevy GMC Silverado Sierra 2500 HD 3500 6.6L Duramax Diesel LLY LBZ LMM Replaces OE# 98062291 97328733, 97363195. This kit includes all of the parts needed to replace the fuel return line on a vehicle with a 6.6L Duramax engine, including clips and other necessary components. One of the main advantages of this product is its compatibility with a wide range of vehicles. It can be used on LLY, LBZ, and LMM engines, which means it can save you money if you need to replace multiple lines at once. Additionally, the kit includes all of the necessary clips and other components needed for installation, making it easy to do yourself or take it to a professional mechanic. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, the lines are made from high-quality materials that are built to last, so they will not crack or leak over time like some cheaper options might. Overall, we would highly recommend this product for anyone looking for an affordable and reliable replacement fuel return line kit for their 6.6L Duramax engine. It is well-priced and offers excellent value for its quality and performance. 5. APDTY 015233 Diesel Fuel Line Return Kit With Clips For Right Bank On 2004-2009 Chevy/GMC 2500 HD 3500 6.6L Duramax Diesel (Replaces GM 97328733, 97363195) The fifth product we will look at is the APDTY 015233 Diesel Fuel Line Return Kit With Clips For Right Bank On 2004-2009 Chevy/GMC 2500 HD 3500 6.6L Duramax Diesel (Replaces GM 97328733, 97363195). This kit includes all of the parts needed to replace the fuel return line on a vehicle with a right-bank 6.6L Duramax engine, including clips and other necessary components. One of the main advantages of this product is its compatibility with a specific range of vehicles. It can only be used on Chevy/GMC 2500 HD 3500 trucks from 2004-2009 that have a right-bank 6.6L Duramax engine, which means it can save you money if you need to replace multiple lines at once. Additionally, the kit includes all of the necessary clips and other components needed for installation, making it easy to do yourself or take it to a professional mechanic. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, the lines are made from high-quality materials that are built to last, so they will not crack or leak over time like some cheaper options might. Overall, we would highly recommend this product for anyone looking for an affordable and reliable replacement fuel return line kit specifically designed for a right-bank 6.6L Duramax engine in Chevy/GMC 2500 HD 3500 trucks from 2004-2009. It is well-priced and offers excellent value for its quality and performance. 6. APDTY 015234 Diesel Fuel Line Return Kit With Clips For Left Bank On 2004-2009 Chevrolet/GMC 2500 HD 3500 6.6L Duramax Diesel (Replaces 98062291) The sixth product we will look at is the APDTY 015234 Diesel Fuel Line Return Kit With Clips For Left Bank On 2004-2009 Chevrolet/GMC 2500 HD 3500 6.6L Duramax Diesel (Replaces 98062291). This kit includes all of the parts needed to replace the fuel return line on a vehicle with a left-bank 6.6L Duramax engine, including clips and other necessary components. One of the main advantages of this product is its compatibility with a specific range of vehicles. It can only be used on Chevy/GMC 2500 HD 3500 trucks from 2004-2009 that have a left-bank 6.6L Duramax engine, which means it can save you money if you need to replace multiple lines at once. Additionally, the kit includes all of the necessary clips and other components needed for installation, making it easy to do yourself or take it to a professional mechanic. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, the lines are made from high-quality materials that are built to last, so they will not crack or leak over time like some cheaper options might. Overall, we would highly recommend this product for anyone looking for an affordable and reliable replacement fuel return line kit specifically designed for a left-bank 6.6L Duramax engine in Chevy/GMC 2500 HD 3500 trucks from 2004-2009. It is well-priced and offers excellent value for its quality and performance. 7. Mercedes (77-99) Diesel Return Hose 1 Meter (Cloth Covered) COHLINE The seventh product we will look at is the Mercedes (77-99) Diesel Return Hose 1 Meter (Cloth Covered) COHLINE. This product includes a single return hose that can be used on Mercedes vehicles from 1977 to 1999, including those with diesel engines. One of the main advantages of this product is its compatibility with a specific range of vehicles. It can only be used on Mercedes vehicles from 1977 to 1999 that have diesel engines, which means it can save you money if you need to replace multiple lines at once. Additionally, the hose is made from high-quality materials that are built to last, so it will not crack or leak over time like some cheaper options might. Another benefit of this product is its affordability. It is well-priced compared to some other aftermarket products on the market, which means you can save money without sacrificing quality. Additionally, the hose is covered in a cloth material that helps protect it from damage and wear over time. Overall, we would highly recommend this product for anyone looking for an affordable and reliable replacement diesel return hose specifically designed for Mercedes vehicles from 1977 to 1999 with diesel engines. It is well-priced and offers excellent value for its quality and performance. In conclusion, when it comes to replacing the fuel return line on a vehicle with a diesel engine, there are many different options available on the market. However, not all products are created equal. In this review, we have looked at some of the best options available and provided our thoughts on their quality, performance, and value. Overall, we would highly recommend the Genuine Bosch OEM Diesel Fuel Return Line Replacement Kit for LLY/LBZ/LMM Duramax Injectors (Set of 2) as it is well-priced, offers excellent quality and performance, and is designed to fit a variety of different vehicles. Additionally, the Chevy Duramax 6.6L LLY-LBZ-LMM INJECTOR RETURN LINE KIT is also an affordable option that provides good value for its price. When it comes to individual components like clips, we would recommend the Return Line Clips for LLY LBZ LMM Injectors (set of 8) as they are compatible with a wide range of vehicles and offer excellent quality at an affordable price.