GM 704908 Nos School Bus Oil Pressure Switch

( Brand: Gm ), ( Type: Oil Pump ), ( Manufacturer Part Number: 704908 ), ( Country/region Of Manufacture: United States ), ( Vintage Part: Yes ), ( Finish: Nos ), ( Performance Part: No )

Review GM Nos Chevrolet Gmc Series School Bus Oil Pressure Switch fits 1979–1987

GM Part Number 704908, Oil Pressure Switch for 1979-1987 Chevrolet and GMC School Buses

The GM 704908 oil pressure switch is a vital component in the engine management system of 1979-1987 Chevrolet and GMC school buses. This switch is responsible for monitoring the engine oil pressure and activating the warning light on the dashboard when the oil pressure drops below a safe level.

The oil pressure switch is a solenoid-operated device that is typically located near the engine oil filter or oil pressure sender unit. It has a resistor that varies its electrical resistance based on the oil pressure in the engine. When the oil pressure is within the specified range, the switch allows a constant electrical current to flow through the circuit, keeping the warning light off. However, when the oil pressure falls below the safe level, the switch opens the circuit, allowing the current to flow to the warning light bulb, illuminating the engine oil pressure warning light on the dashboard.

The oil pressure switch is designed to provide an early warning of potential engine oil problems, allowing the driver to take preventative measures before serious damage occurs. It is essential to maintain the engine oil at the recommended level and in good condition to ensure the proper functioning of the oil pressure switch and the engine as a whole.

This GM part is a direct replacement for the original equipment, ensuring a reliable and accurate oil pressure monitoring system. It is manufactured to meet the highest standards of quality and durability, offering a long service life and peace of mind for the vehicle owner.

Installation of the oil pressure switch is a straightforward process that can be done by a competent DIY mechanic or a professional technician. The switch comes with clear installation instructions and all necessary hardware for a hassle-free installation. It is recommended to follow the instructions carefully and to test the warning light after installation to ensure proper function.

In conclusion, the GM 704908 oil pressure switch is an essential component for maintaining the safe and reliable operation of 1979-1987 Chevrolet and GMC school bus engines. By monitoring the oil pressure and activating the warning light when necessary, it helps prevent costly engine damage and ensures a smooth and safe ride for the passengers.

Pros and Cons of Buying a GM 704908 Oil Pressure Switch for 1979-1987 Chevrolet GMC School Buses

a. Essential Component: The oil pressure switch is a critical part of the engine's safety system, as it monitors the engine oil pressure and activates the warning light when the pressure drops below a safe level, preventing potential engine damage.

b. Easy Installation: This oil pressure switch is designed specifically for 1979-1987 Chevrolet GMC school buses, ensuring a straightforward installation process.

c. OEM Quality: Purchasing an OEM (Original Equipment Manufacturer) part like the GM 704908 ensures that the part is made to the same specifications as the original equipment installed on your bus, ensuring optimal performance and reliability.

d. Cost-Effective: While you may pay a slightly higher price for an OEM part, it can save you time and money in the long run by providing consistent performance and reducing the need for frequent repairs or replacements of inferior aftermarket parts.

a. Higher Upfront Cost: The price of an OEM part like the GM 704908 may be higher than aftermarket alternatives, which could be a barrier for some buyers on a tight budget.

b. Availability: Depending on the specific model and year of your Chevrolet GMC school bus, the GM 704908 oil pressure switch may be harder to find in local auto parts stores, requiring you to order it online or visit specialized dealerships.

The decision to buy a GM 704908 oil pressure switch for your 1979-1987 Chevrolet GMC school bus depends on your priorities. If you value the peace of mind that comes with using a high-quality, OEM part and are willing to pay a slightly higher upfront cost, then this switch is an excellent choice. However, if you're on a tight budget and are willing to accept the potential risks associated with aftermarket parts, you may consider exploring those options. Ultimately, investing in a reliable oil pressure switch can save you time, money, and potential engine damage in the long run.

Based on the information provided, our recommendation is to consider purchasing the GM 704908 oil pressure switch for your 1979-1987 Chevrolet GMC school bus. While the upfront cost may be higher than aftermarket alternatives, the benefits of using an OEM part, such as optimal performance, reliability, and consistent quality, can save you time and money in the long run. Additionally, since this part is designed specifically for your vehicle, you can trust that it will fit and function correctly, ensuring the safety and efficiency of your engine system.

Details:

These are very hard to find in NOS condition so be sure not miss this one. If you are out of the country please understand this while buying on item. This means if the item is lost or damaged while in transit there no coverage. The part number is 704908 superseded by 2488045 group 1.800 and 2.930.

This can take anywhere from 1 week to months. 1979 1980 1981 1982 1983 1984 1985 1986 1987 Chevrolet and GMC Series 6 School Bus model's with 8.2N or 8.2T engine alarm system. This is a new old stock NOS original GM oil pressure switch correct for the following model's.

part #: 704908 prices

• $6.94-$23.35

specifications pumppruner:

• for makes: Chevrolet, Gmc
• for years: 1979-1987
• brand: Gm
• type: Oil Pump
• manufacturer part number: 704908
• country/region of manufacture: United States
• vintage part: Yes
• finish: Nos
• performance part: No

offer pumppruner:

• quantity: 2
• started: February 15, 2025
• best offers: True
• availability: In Stock
• sold: 0
• options: Ship-to-home

seller pumppruner:

• rating: 100.0%
• # reviews: 33160
• city: Cosby, Tennessee

general pumppruner:

• Car Truck Parts Accessories > Engines Engine Parts > Oil Pumps Parts
• condition: New other see details

returns pumppruner:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted

shipping pumppruner:

• type: Fixed
• carrier: USPS
• transit: 5-10 Days
• class: Standard
• service: USPS First Class
• cost: $6.50

payments pumppruner:

• credit card: Visa
• other
• wallet: Google-pay

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