CUMMINS 309-0641-18 Onan Oil Pressure Switch

( Brand: Cummins ), ( Manufacturer Part Number: 309-0641-18 ), ( Part Type: Oil Pressure Switch ), ( Country/region Of Manufacture: United States ), ( Equipment Type: Generator ), ( California Prop 65 Warning: Yes )

Review CUMMINS Onan Oil Pressure Switch

The Cummins Onan 309-0641-18 oil pressure switch is an essential component of the Onan Cummins-powered generators. This switch is designed to monitor the oil pressure in the engine and prevent it from operating if the oil pressure drops below the safe operating level.

The switch is a compact, robust unit, measuring approximately 1.5 inches in length, 1.5 inches in width, and 1 inch in height. It is made of high-quality materials that can withstand the extreme temperatures and vibrations encountered in a generator environment.

The switch has a threaded connection at the back that allows for easy installation on the engine. The connection is designed to be leak-free, ensuring that no oil escapes during operation. The switch also has two wires that connect to the generator's electrical system, one for the normal operating condition, and the other for the low oil pressure warning.

The switch operates on a simple principle. When the engine oil pressure drops below the safe level, the switch opens the circuit, preventing the generator from starting. This feature ensures that the engine is not operated when the oil level is low, preventing potential damage to the engine.

The 309-0641-18 oil pressure switch is designed to work with Onan Cummins-powered generators, and it is a direct replacement for the original equipment manufacturer (OEM) switch. It is also compatible with various Cummins engines, including those found in RVs, marine applications, and other industrial equipment.

The switch comes with a one-year warranty, ensuring that any manufacturing defects are covered. It is recommended that the switch is checked regularly to ensure that it is functioning correctly and that the oil level in the engine is maintained at the recommended level.

In summary, the Cummins Onan 309-0641-18 oil pressure switch is a crucial component that ensures the safe and efficient operation of Onan Cummins-powered generators. It is a robust, easy-to-install unit that monitors the oil pressure and prevents the engine from operating when the oil level is low. It is made of high-quality materials, has a one-year warranty, and is a direct replacement for the OEM switch.

Cummins Onan Oil Pressure Switch (309-0641-18): A Comprehensive Analysis

The Cummins Onan oil pressure switch (309-0641-18) is an essential component for maintaining the proper functioning of generators equipped with Cummins engines. This analysis aims to provide an in-depth evaluation of this part, covering both its advantages and disadvantages.

1. Ensures Proper Engine Protection: The oil pressure switch safeguards the engine against potential damage by shutting off the engine when the oil pressure drops below the safe level.

2. Improves Engine Efficiency: Proper oil pressure ensures optimal engine performance, leading to improved fuel efficiency and longer engine life.

3. Easy Installation: The Cummins Onan oil pressure switch is designed for easy installation, and usually, no additional modifications are required.

4. High-Quality Construction: Cummins is a reputable brand known for manufacturing durable parts. This oil pressure switch is no exception, ensuring reliability and longevity.

1. Cost: The Cummins Onan oil pressure switch can be more expensive than some aftermarket alternatives.

2. Sensitive to Oil Contamination: The oil pressure switch can be affected by contaminated engine oil, potentially causing premature failure.

3. Limited Availability: The part may not be readily available at local auto parts stores, requiring an order from the manufacturer or an authorized dealer.

The Cummins Onan oil pressure switch (309-0641-18) is an essential component for maintaining the proper functioning and longevity of generators equipped with Cummins engines. Despite its potential disadvantages, such as cost and limited availability, the advantages, including engine protection and improved efficiency, outweigh the drawbacks. Therefore, investing in an authentic Cummins oil pressure switch is a wise decision for those who prioritize engine reliability and performance.

In conclusion, it is highly recommended to use the genuine Cummins Onan oil pressure switch (309-0641-18) for optimal engine performance and longevity. Though it may be more expensive and less readily available than aftermarket alternatives, the peace of mind and enhanced engine protection it provides are well worth the investment.

Details:

part #: 309064118 prices

• $99.95-$248.00

specifications generatormac:

• brand: Cummins
• mpn: 309-0641-18
• part type: Oil Pressure Switch
• country/region of manufacture: United States
• equipment type: Generator
• california prop 65 warning: Yes

general generatormac:

• Business Industrial > Light Equipment Tools > Generator Parts Accessories
• condition: New

returns generatormac:

• method: Money back
• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

offer generatormac:

• started: June 13, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1

seller generatormac:

• rating: 100.0%
• # reviews: 132
• city: Kendallville, Indiana

payments generatormac:

• other
• credit card: Mastercard
• wallet: Apple-pay

shipping generatormac:

• class: Standard
• service: USPS Ground Advantage
• transit: 4-10 Days
• type: Calculated
• carrier: USPS
• cost: $0.00

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