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  3. CUMMINS 6305290

CUMMINS 6305290 Thermostat

6305290 Cummins Original Thermostat

( Brand: Cummins ), ( Manufacturer Part Number: 6305290 ), ( Type: Thermostat Housing )

Review CUMMINS Original Thermostat

The Cummins 6305290 thermostat is a crucial component in maintaining the optimal engine temperature in Cummins diesel engines. This thermostat is specifically designed to regulate the coolant flow between the engine and the cooling system.

The thermostat housing is made of durable cast aluminum, ensuring longevity and resistance to corrosion. The thermostat itself is a stainless steel disc design with a precision-machined bore and a temperature-sensitive element. This element is designed to expand and contract with temperature changes, allowing the thermostat to function properly in regulating coolant flow.

The Cummins 6305290 thermostat features a unique pressure-actuated spring design that allows for consistent sealing and reliable operation. This design helps prevent coolant leaks and ensures that the engine temperature remains within the optimal range for efficient and reliable operation.

The thermostat also includes a built-in bypass valve, which allows coolant to bypass the thermostat when the engine is first started or when the engine temperature is above the normal operating temperature. This feature helps ensure that the engine warms up quickly and reduces the load on the cooling system.

Installation of the Cummins 6305290 thermostat is straightforward and can be completed with common hand tools. The thermostat comes with all necessary gaskets and hardware for a hassle-free installation process.

Overall, the Cummins 6305290 thermostat is an essential component for maintaining the proper engine temperature in Cummins diesel engines. Its durable design, consistent sealing, and reliable temperature regulation make it a must-have for any diesel engine enthusiast or professional mechanic.

The Cummins 6305290 thermostat is a crucial component in maintaining the proper operating temperature of Cummins engines. Here are some pros and cons to consider before making a purchase.

Pros:

1. OEM Compatibility: This thermostat is a direct replacement for original equipment manufactured by Cummins, ensuring a perfect fit and function for your engine.

2. Durability: Cummins is known for its robust and reliable components. This thermostat is no exception, designed to withstand the rigors of heavy-duty use.

3. Temperature Regulation: Proper engine temperature is crucial for optimal performance and longevity. This thermostat will help keep your engine running at the correct temperature.

4. Improved Fuel Economy: By maintaining the correct engine temperature, the engine will operate more efficiently, potentially leading to improved fuel economy.

Cons:

1. Price: Original equipment parts, like this Cummins thermostat, can be more expensive compared to aftermarket alternatives.

2. Limited Availability: OEM parts may not always be readily available at local auto parts stores, requiring you to order online or through a dealer.

3. Potential for Overheating: If not installed correctly, a faulty thermostat can cause the engine to overheat, potentially leading to costly repairs.

Ending Conclusion:

The Cummins 6305290 thermostat is a high-quality, OEM component designed to provide reliable temperature regulation for Cummins engines. While it may be more expensive than aftermarket alternatives, the advantages of OEM compatibility, durability, improved fuel economy, and temperature regulation make it a worthwhile investment for those seeking optimal engine performance and longevity.

Recommendation:

If you are in the market for a new thermostat for your Cummins engine, the Cummins 6305290 is a solid choice. Its OEM compatibility, durability, and temperature regulation capabilities make it an excellent investment for those seeking optimal engine performance and longevity. However, be sure to install it correctly to avoid potential overheating issues.

Details:

Made specifically by Cummins, this thermostat ensures a perfect fit and reliable performance. The Original Cummins Thermostat 6305290 is a high-quality replacement part for engines.

part #: 6305290 prices

  • $27.81-$154.78

specifications coenginecooling:

  • brand: Cummins
  • mpn: 6305290
  • type: Thermostat Housing

general coenginecooling:

  • Commercial Truck Parts > Engine Cooling > Thermostats
  • condition: New

returns coenginecooling:

  • policy: No Returns

offer coenginecooling:

  • best offers: True
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • started: July 1, 2025

shipping coenginecooling:

  • type: Calculated
  • carrier: USPS
  • transit: 5-9 Days
  • class: Standard
  • service: USPS Ground Advantage
  • cost: $4.62

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  • # reviews: 91
  • rating: 100.0%
  • city: San Bernardino, California

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  • wallet: Paypal
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type: thermostat housing,
category: auto parts > commercial truck parts > engine cooling > thermostats, sku: 6381108706442772,
Cummins 6305290 Is Similar To:
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5 offers $27.81–$154.78 USD
  • New other (see details). Offer #1 priced at $98.00 + $7.90 shipping estimate = $105.90* total. Manufacturer: Cummins (Genuine OEM). Genuine Cummins Thermostat OEM ISC / ISL / QSC / QSL / L Engines.+$7.90 shipping
  • New. Offer #2 priced at $154.78 + $0.00 shipping estimate = $154.78* total. ABOUT THE PART THERMOSTAT. Part #: .FREE SHIPPING
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