Skip to product information
12_129cffbf-8709-44f8-aa6c-2fcff8b2fc5a - Northline Parts

Water Temperature Sensor 4010644 for Polaris Sportsman 450 Ranger 500 RZR 800

SKU: NLT2T03421
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
This Water Temperature Sensor is a high-quality aftermarket replacement part compatible with Polaris Sportsman 450, Ranger 500, RZR 800 and matches OEM Part# 4010644.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Polaris Sportsman 450
  • Polaris Ranger 500
  • Polaris RZR 800

Product Overview

This engine coolant temperature sensor provides precise thermal monitoring to ensure the cooling system operates efficiently and protects the engine from overheating.

Key Features & Performance

  • Reliable Calibration:Engineered to provide accurate resistance values for consistent ECU communication.
  • Robust Construction:Built to withstand the vibration and high-heat cycles of off-road operation.
  • Factory Fit:Designed as a direct replacement for a seamless installation into the OEM mounting location.
  • Enhanced Connectivity:Features high-quality terminals to maintain a stable electrical signal.

Technical Specifications

  • Part Number(s):4010644
  • Sensor Type:Coolant / Water Temperature
  • Connection:Plug-and-play connector

Frequently Asked Questions

Q:Will this sensor resolve erratic temperature gauge readings?A:Yes, replacing a worn sensor with this high-accuracy unit restores reliable data transmission to the instrument cluster.

Q:Is professional installation required?A:This is a straightforward plug-and-play component, though basic mechanical knowledge and tools are required for installation.

Compatibility may vary by serial number. Verify fitment before purchase.

Customers also purchased