Sensor, Thermister
Live Price MatchAlso fits 225 other vehicles
- 2004 polaris sportsman-700-a04ch68ap-aq-au-cu — Manifold Thermostat
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AUTOMAJOR’s Brass NTC Thermistor Coolant Temperature Sensor (Model 4010644) is a direct replacement for the Polaris 4010644 and the Bosch sensor 0281002209, with cross-compatibility to Bosch part numbers 0280130093, 0280130094, 0280130122, 0281002169, and 0281002170. It also matches aftermarket alternatives including 5010412450, 500382599, 612630060035, and 04199809.
Engineered with a brass body for optimal heat transfer, this sensor maintains factory resistance values and connector compatibility, ensuring accurate readings for fuel delivery, ignition timing, idle speed, and cooling fan operation without recalibration or wiring modifications. Suitable for Polaris models ranging from the Sportsman 450/570/700/800 EFI to the RZR 900/1000 XP, Scrambler 850/XP 1000, and ACE/General series (2005–2022 production), this sensor resolves issues such as erratic temperature gauge readings, overactive/non-responsive cooling fans, cold-start difficulties, and inefficient fuel consumption. Installation requires standard hand tools and takes approximately 15–30 minutes, involving coolant drainage, sensor removal/replacement, and reconnection. Verify proper function post-installation by monitoring the gauge and fan during the first warm-up cycle.
Key Specifications:
- Material: Brass
- Mounting Type: Flange Mount
- Output Type: Electrical Signal (NTC Thermistor)
- Upper Temperature Rating: 125°C
- Included Components: None
- 0: Replaces Polaris 4010644 and the Bosch sensor it is built on, 0281002209, and crosses to Bosch 0280130093, 0280130094, 0280130122, 0281002169 and 0281002170, plus aftermarket 5010412450, 500382599, 612630060035 and 04199809. The same Bosch sensor appears in BRP catalogues under 278002895, 278001016, 711222425 and 420222425, so Sea-Doo and Can-Am owners can match by that number.
- 1: The sensor is an NTC thermistor: its resistance falls as the coolant warms, and the engine computer reads that curve to set fuel, ignition timing, idle speed and the cooling fan. Brass body for heat transfer into the coolant passage, with the factory resistance values and connector shape, so it plugs in and reads correctly without recalibration, a wiring adapter or any change to the loom.
- 2: Fit a new sensor when the temperature gauge jumps around or reads cold on a hot engine, when the fan runs constantly or never comes on, when the machine is hard to start on a cold morning, or when the idle hunts and fuel use climbs. A sensor feeding the computer the wrong number sends it to a default value, and the machine runs on that guess until the sensor is replaced, which costs fuel and patience on every ride.
- 3: Fits Polaris Sportsman 450, 570, 700 EFI, 800 EFI, X2 700 and X2 800, XP 850, XP 1000 and Touring 570 from 2005 to 2022; Ranger 500, 570, 700, 800 and 900, Crew 570, Crew XP 900 and XP 1000, ETX and XP 700 from 2005 to 2021; RZR 570, 800, 900, S 800, 4 800, 4 900, XP 900 and XP 1000 from 2008 to 2021; Scrambler 850 and XP 1000, ACE 325 to 900, General 1000 and General 4 1000, plus Hawkeye 325 and Forest models.
- 4: Fitting takes 15 to 30 minutes with hand tools. The sensor sits in the cylinder head or a coolant passage: drop the coolant level below it, unplug the connector, unscrew the old sensor, thread the new one in and snug it, reconnect, top the coolant back up and clear any stored codes. Check the gauge and the fan on the first warm-up run before you take the machine out on the trail.
The **Temperature Sensor Switch 4010644** is a precision-engineered component designed for seamless integration with Polaris ACE 325, 500, 570, and 900 models. Engineered for reliability, this switch ensures accurate temperature monitoring and control, safeguarding critical systems against overheating or suboptimal operating conditions.
Constructed with durable materials and built to withstand demanding environments, this sensor switch delivers consistent performance in both residential and commercial applications. Direct compatibility with specified Polaris ACE models eliminates the need for modifications or adapters, ensuring a hassle-free installation process.
O-Ring
Amazon OnlyAlso fits 71 other vehicles
- 2002 polaris sportsman-700-a02ch68aa-ab-ac-ca-cb — Cylinder Cylinder Head
- 2003 polaris sportsman-600-a03ch59aa — Cylinder And Cylinder Head A03ch59aa Af Ag
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- 2003 polaris sportsman-700-a03ch68aa-ac-af-ah-al — Cylinder Cylinder Head
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The **Polaris Thermostat and O-Ring Replacement Set (Model-C8X-6401)** delivers a precision-engineered solution for maintaining optimal engine performance in off-road vehicles. This set includes a **black thermostat** and a matching **O-ring**, ensuring a secure, leak-free seal for reliable operation in demanding conditions.
Designed for seamless integration, this replacement part adheres to original equipment manufacturer (OEM) specifications, providing a direct fit for Polaris models requiring part numbers **7052352 (Thermostat)** and **5411521 (O-Ring)**. Each unit is manufactured to withstand high temperatures, vibration, and exposure to mud, dust, and harsh weather, extending the lifespan of your vehicle’s cooling system. Order includes **one thermostat** and **one O-ring** for quick and efficient maintenance.
Specifications
- 0: ✔ Compatible with Major Powersports Brands – Designed to fit a wide range of models from Yamaha, Honda, Polaris, Can-Am, TM, John Deere, and more—perfect for ATVs, UTVs, dirt bikes, and side-by-sides.
- 1: ✔ Durable & Built for Tough Terrain – Manufactured from high-quality materials that withstand off-road use, vibration, mud, dust, and harsh weather conditions.
- 2: ✔ Improves Performance & Reliability – Ideal for restoring or enhancing engine response, handling, and overall ride quality with dependable aftermarket parts.
- 3: ✔ OEM-Style Fitment – Precision-engineered to meet or exceed original specifications for seamless integration and hassle-free installation.
- 4: ✔ Great for Maintenance & Upgrades – Whether you're replacing a worn part or upgrading performance, these components keep your machine running at its best.
Ships directly from Amazon warehouses — not currently matched on eBay.
Screw
Live Price MatchAlso fits 268 other vehicles
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This **Quad Logic M6 x 20mm bolt set** is a direct replacement for Polaris part number **7516822**, engineered for water pump and head cover applications across select Polaris ATV models. The **flange-designed bolts** ensure proper alignment and sealing of engine components, including water pump covers, rocker covers, and related assemblies. Each bolt features a **pre-applied thread-locking patch** to prevent loosening during operation, maintaining optimal performance and reducing the risk of fluid leaks or component misalignment.
Designed for **ATV service applications**, this **6-pack set** replaces worn or damaged factory fasteners, supporting routine maintenance and engine reassembly procedures. Compatible with Polaris UTV and ATV models requiring **7516822**, these bolts adhere to OEM specifications for dimensional and functional compatibility. **Item weight: 2.5 oz** (0.071 kg).
- 0: Replacement flange bolt set for select Polaris ATV and UTV models
- 1: Commonly used for water pump covers and head or rocker cover mounting
- 2: M6 x 20 mm bolts with integrated flange design
- 3: Replaces Polaris part number 7516822
- 4: Includes pre-applied thread-locking patch
- 5: Set includes six bolts; verify application and quantity before ordering
The POLARIS SCREW model 7516822 t371 is engineered for high‑performance fastening applications in industrial and commercial environments. Constructed with precision‑machined components, this screw delivers reliable torque transmission and superior durability under demanding operational conditions.
Designed to integrate seamlessly with existing POLARIS equipment, the 7516822 t371 features a robust thread profile and a corrosion‑resistant finish that ensures long‑term stability and minimal maintenance. Its compact form factor facilitates easy installation in confined spaces while maintaining alignment accuracy.
Ideal for use in assembly lines, machinery maintenance, and structural reinforcement, this screw meets stringent quality standards and provides consistent performance throughout its service life. The POLARIS SCREW 7516822 t371 represents a dependable solution for professionals seeking precision and reliability in fastening technology.
Thermostat w/Bypass
Exact OEM Stock LowAlso fits 59 other vehicles
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Looking for a direct-fit replacement from a compatible aftermarket brand?
Find New-Old-Stock (NOS), open-box deals, or verified salvage teardown parts.
Cover, Thermostat
Exact OEM Stock LowAlso fits 34 other vehicles
- 2004 polaris sportsman-600-a04ch59ak-al-an-aq-aw — Cylinder Cylinder Head
- 2004 polaris sportsman-700-a04ch68ac-af-ah-aj-at-av — Cylinder Cylinder Head
- 2004 polaris sportsman-700-a04ch68ak-al-an-ao — Cylinder Cylinder Head
- 2004 polaris sportsman-700-a04ch68ap-aq-au-cu — Manifold Thermostat
- 2005 polaris sportsman-600-a05mh59ak — Cylinder And Cylinder Head A05mh59ak An
- 2005 polaris sportsman-600-a05mh59ak — Cylinder Cylinder Head An
- 2005 polaris sportsman-700-a05mh68ak-an-ad — Engine Cylinder Cylinder Head
- 2005 polaris sportsman-700-efi-a05mh68ac — Manifold And Thermostat A05mh68ac As At Au Aw
- 2005 polaris sportsman-700-efi-a05mh68ac — Manifold Thermostat As At Au Aw
- 2005 polaris sportsman-800-efi-a05mh76ac-au-aw — Manifold Thermostat A05mh76ac At Au Aw
- 2005 polaris sportsman-mv7-a05mh68ap — Cylinder And Cylinder Head A05mh68ap
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- 2006 polaris sportsman-700-a06mh68aa — Cylinder And Cylinder Head A06mh68aa Ad Af
- 2006 polaris sportsman-700-a06mh68aa — Cylinder Cylinder Head Ad Af
- 2006 polaris sportsman-700-efi-a06mh68aq — Manifold And Thermostat A06mh68aq At Ax Ay Az
- View all 34 →
Looking for a direct-fit replacement from a compatible aftermarket brand?
Find New-Old-Stock (NOS), open-box deals, or verified salvage teardown parts.
Engine Manifold Thermostat — Frequently Asked Questions
What OEM parts are included in the Engine Manifold Thermostat for the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az?
The Engine Manifold Thermostat for the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az includes 5 individual OEM components, each listed below with its exact OEM part number.
How much does the Engine Manifold Thermostat cost for the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az?
Individual components in this assembly currently range from $2.99–$41.57, based on live Amazon and eBay listings. See the price comparison below for each part.
Will these OEM parts fit other 2007 polaris sportsman-700-efi-a07mh68ax-ay-az model years or trims?
Manufacturers frequently reuse the same physical part across multiple model years and trims, so a given OEM part number can be compatible with more than just this exact vehicle — search the OEM number directly to see every vehicle it fits.
What is the OEM part number for Sensor, Thermister on the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az?
The OEM part number for the Sensor, Thermister (part of the Engine Manifold Thermostat assembly) on the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az is 4010644.
Does OEM part 4010644 fit the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az?
Yes — OEM 4010644 is listed as the Sensor, Thermister for the 2007 polaris sportsman-700-efi-a07mh68ax-ay-az (2007), part of the Engine Manifold Thermostat assembly.
Which parts are included in the Engine Manifold Thermostat?
Sensor, Thermister, O-Ring, Screw, Thermostat w/Bypass, Cover, Thermostat.
What other vehicles use OEM part number 4010644?
OEM 4010644 (Sensor, Thermister) also fits 225 other vehicles in this catalog, including 2004 polaris sportsman-700-a04ch68ap-aq-au-cu — Manifold Thermostat, 2005 polaris sportsman-700-efi-a05mh68ac — Manifold And Thermostat A05mh68ac As At Au Aw, 2005 polaris sportsman-700-efi-a05mh68ac — Manifold Thermostat As At Au Aw.