Category Review: Engine Rebuilding and Upgrade Kits for UTVs Introduction: Engine rebuilding and upgrade kits are essential components of any utility vehicle (UTV) maintenance plan. These products provide the necessary tools, parts, and instructions to repair or enhance an engine's performance. In this review, we will examine various engine rebuilding and upgrade kits for UTVs available on the market. We will discuss their features, benefits, and drawbacks, as well as their compatibility with different models of Polaris Ranger UTVs. Piston Kit - Standard Bore 79.97mm 2013 Polaris Ranger RZR 800 S Utility Vehicle: This piston kit is designed for the 2013 Polaris Ranger RZR 800 S UTV and comes with standard bore size of 79.97mm. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this piston kit is its compatibility with a wide range of Polaris Ranger UTV models. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this piston kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Piston Kit - Standard Bore 79.96mm For 2010 Polaris Ranger 800 Crew Utility Vehicle: This piston kit is designed for the 2010 Polaris Ranger 800 Crew UTV and comes with a standard bore size of 79.96mm. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this piston kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this piston kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Standard Bore Cylinder Kit for Polaris RZR 800 EFI (2008-2010) UTV: This cylinder kit is designed for the standard bore size of 79.9mm and is compatible with Polaris RZR 800 EFI UTVs from 2008 to 2010. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this cylinder kit is its compatibility with a wide range of Polaris RZR UTV models. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this cylinder kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Top End Repair Kit - Standard Bore 79.95mm 2012 Polaris Ranger XP Utility Vehicle: This top end repair kit is designed for the standard bore size of 79.95mm and is compatible with Polaris Ranger XP UTVs from 2012. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this top end repair kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this top end repair kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Top End Repair Kit - Standard Bore 79.95mm 2009 Polaris Ranger RZR Utility Vehicle: This top end repair kit is designed for the standard bore size of 79.95mm and is compatible with Polaris Ranger RZR UTVs from 2009. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this top end repair kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this top end repair kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Top End Kit - Standard Bore 80.00mm, 12.0:1 Compression For 2009 Polaris Ranger RZR Utility Vehicles: This top end kit is designed for the standard bore size of 80.00mm and comes with a compression ratio of 12.0:1. It is compatible with Polaris Ranger RZR UTVs from 2009. The kit includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this top end kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this top end kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Big Bore Cylinder Kit for Polaris Ranger 800 Crew (2010) UTV: This cylinder kit is designed for the standard bore size of 79.96mm and is compatible with Polaris Ranger 800 Crew UTVs from 2010. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this cylinder kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this cylinder kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Big Bore Cylinder Kit for Polaris Ranger 800 S Utility Vehicles: This cylinder kit is designed for the standard bore size of 79.96mm and is compatible with Polaris Ranger 800 S UTVs from 2010. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this cylinder kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this cylinder kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Wiseco (PK1861) 80.00mm Bore 10.2:1 Compression 4-Stroke Piston Kit: This piston kit is designed for use with an 80.00mm bore size and comes with a compression ratio of 10.2:1. It includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this piston kit is its compatibility with various UTV models, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this piston kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Top End Kit - Standard Bore 80.00mm, 12.0:1 Compression For 2009 Polaris Ranger RZR Utility Vehicles: This top end kit is designed for the standard bore size of 80.00mm and comes with a compression ratio of 12.0:1. It is compatible with Polaris Ranger RZR UTVs from 2009. The kit includes all necessary components, including pistons, connecting rods, crankshafts, and bearings. The kit also includes instructions for installation and maintenance. One of the main benefits of this top end kit is its compatibility with a specific model of Polaris Ranger UTV, which makes it easier to find compatible parts and tools. Additionally, it provides an opportunity to upgrade the engine's performance by using high-quality components that are designed to last longer than stock parts. The kit also includes a warranty for added peace of mind. However, one potential drawback is that this top end kit may not be suitable for all users due to its complexity and advanced technical skills required for installation. Additionally, the cost of this kit can be quite high compared to other engine rebuilding or upgrade kits on the market. Conclusion: Engine rebuilding and upgrade kits are essential components of any UTV maintenance plan. These products provide the necessary tools, parts, and instructions to repair or enhance an engine's performance. In this review, we have examined various engine rebuilding and upgrade kits for UTVs available on the market. We have discussed their features, benefits, and drawbacks, as well as their compatibility with different models of Polaris Ranger UTVs.