Engine Cooling System

High-quality replacement flange nuts engineered for direct compatibility with Polaris ATV and UTV models. Crafted from iron with a plain exterior finish and fully threaded design (1-5/16"-16, right-hand thread), these nuts ensure secure fastening for applications such as battery cable connections and windshield washer fluid tank mounts. Sold as a 5-pack, each nut measures 10 x 7 x 1 inches (packaged dimensions) and weighs 3 ounces.

This OEM-equivalent part replaces Polaris part number 7547274, offering a reliable, drop-in solution for maintenance and restoration needs. Compatible with all Polaris ATV and UTV models requiring 1-5/16" flange nuts, these components feature a flat head style for precise, flush installation.

A precision-machined M6 x 1.0 x 30mm hex flange screw (Part # Mod-GRT898-8264) designed for Polaris RZR Sportsman 1000 models (2010–2019). This high-strength fastener is engineered to meet OEM specifications, ensuring a secure and reliable fit for electrical, ignition, or structural applications. Manufactured to exact dimensions, it delivers consistent performance under demanding conditions, reducing the risk of loosening or failure.

Ideal for professional mechanics and DIY enthusiasts, this replacement part is compatible with the 2010–2019 RZR Sportsman 1000 series, including the Mod-GRT898-8264 application. With a single unit included, it provides a direct, no-compromise solution for maintenance or repair projects requiring a M6 thread, 1.0mm pitch, and 30mm length. Built to withstand repetitive stress, this screw supports long-term durability and operational integrity.

Quad Logic provides a vehicle‑specific, direct‑fit radiator cap designed for Polaris Sportsman models 450, 500, 550, 570, 850, and 1000 XP (1996‑2026). The cap features a twist‑on closure and matches the original 13 PSI pressure rating, ensuring reliable coolant system performance without the need for modification.

Constructed from durable metal with a silver exterior finish, the cap weighs 3 ounces and carries the manufacturer part number 1240466. It is supplied as a single unit (model number 100) and serves as a direct replacement for the factory‑installed component, complying with OEM equivalents Polaris 1240044 and 1240508.

The Polaris Sportsman 550/850 Radiator by Wanghjmoto is a precision-engineered replacement designed for models 1240404, 5437627, 1240406, 1240407, 1240408, 1240596 (2011–2022). Constructed from 100% aluminum with high-density multi-louvered fins, this radiator delivers enhanced cooling efficiency—boosting engine performance by up to 40% in extreme temperatures—while ensuring long-term durability.

Featuring a direct OEM fit for seamless installation, the radiator incorporates TIG-welded seams and brazed core technology, eliminating the need for epoxy. The brushed exterior finish enhances both aesthetics and corrosion resistance. With a lightweight design (1.76 oz) and compact dimensions (0.39" x 0.39" x 0.39"), this radiator maintains optimal airflow while preserving under-seat clearance. Available exclusively from January 2026, this component is manufactured to Wanghjmoto’s stringent quality standards and is packaged individually for easy integration into Polaris maintenance routines.

The Polaris 5413510 lower radiator mount grommet, identified by model GRT898-75416, is a premium replacement component designed for the 2018 XP Sportsman Scrambler 1000. Engineered to meet original equipment specifications, this grommet provides a reliable seal for the lower radiator mount, protecting against fluid leaks and maintaining optimal cooling system performance.

Constructed from high‑grade materials, the grommet delivers durability in demanding off‑road and utility applications. It is supplied as a single unit, ensuring straightforward installation for service technicians and experienced owners. This part is compatible with the specified Polaris model and serves as a direct replacement for the factory‑installed component.

The **Quad Logic Billet Aluminum Cooling Cap Kit** is a precision-machined replacement for the factory coolant cap assembly on Polaris Ranger RZR Scrambler and compatible UTV models. Engineered from high-quality billet aluminum, this kit replaces the original plastic components—including the radiator cap, overflow bottle, and cap gasket—while maintaining exact fitment to the original sealing surfaces and installation points.

Designed for direct compatibility with Polaris part numbers **5430743, 5433774, 5431895, and 5710279**, this kit ensures improved durability and thermal performance over standard plastic caps. The lightweight (2 oz.) assembly measures **10 x 7 x 1 inches** and ships ready for immediate installation. Available since **May 24, 2024**, under manufacturer part number **100-3543-KIT**.

The **Quad Logic Cooling Cap Gasket** is a direct-fit replacement for Polaris ATV and UTV models requiring OEM specification 5810279. Engineered to match factory sealing dimensions, this machined gasket ensures a secure, leak-free fit within the factory coolant cap assembly. Designed for optimal pressure retention, it maintains proper cooling system performance during operation.

This gasket-only replacement weighs **2 ounces** and is packaged in a compact **10 x 7 x 1-inch** box for easy storage. Compatible with select Polaris General Ranger RZR Scrambler and Sportsman models, it provides a reliable solution for worn or damaged seals. Note: Overflow cap and cup are not included.

The Quad Logic Coolant Overflow Bottle Cap Plug is a precise OEM replacement designed for Polaris Ranger, RZR, Scrambler, and Sportsman models. Manufactured with machined exterior and a weight of 2 ounces, this plug fits directly between the coolant recovery bottle and the overflow bottle cap, ensuring a secure seal and preventing coolant leakage or improper pressure regulation.

Key features include exact OEM dimensions, compatibility with multiple Polaris ATV and UTV models, and a reliable seal that restores proper overflow system operation. The unit is available since March 14, 2023, and is packaged in a 10 x 7 x 1 inch box, making it convenient for quick replacement.

The ACTIVLIFE Radiator Reservoir is a direct-fit replacement for the Polaris Sportsman XP 550 model year 2009, supporting optimal cooling system performance. Engineered to exact specifications, this reservoir ensures proper fluid storage and circulation for extended engine longevity. Compatible with part numbers 1240406 and 5437257, this component is designed to meet the precise requirements of your vehicle’s cooling system.

Prior to installation, verify compatibility by comparing the provided dimensions and visual characteristics with your existing component. ACTIVLIFE maintains rigorous quality standards to deliver reliable, OEM-equivalent parts for enhanced maintenance efficiency.

A high-performance, direct-fit replacement radiator fan designed for Polaris Sportsman XP 550 models (2009–2014). Engineered to exact OEM specifications, this component ensures optimal cooling and reliability for demanding off-road and utility applications.

Constructed from durable materials, the fan delivers superior wear resistance and extended service life, even under extreme operating conditions. Installation is simplified with a straightforward design, requiring only basic tools and minimal downtime. Backed by a decade of industry expertise, this part is trusted for both routine maintenance and performance upgrades.