ACDELCO 4.079351 Oil Pressure Sending 649696936875 89057490

( Brand: Acdelco ), ( Manufacturer Part Number: 4.079351 ), ( Type: Oil Sensors ), ( Manufacturer Warranty: Yes ), ( Fitment: Direct Fit Application, Check Fitment Chart ), ( California Proposition 65: Warning, Lead, Which Is Known To The State Of California To Cause Cancer, And Birth Defects Or Reproductive Harm. For More Information Go, To Www.p65warnings.ca.gov. ), ( UPC: 649696936875 )

Review ACDELCO Oil Pressure Sending Units

The **ACDelco 4.079351 Oil Pressure Sending Unit (OEM Part #89057490)** is a high-performance, direct-fit replacement designed to maintain optimal oil pressure monitoring in modern vehicles equipped with electronic engine management systems. Engineered to meet or exceed original equipment manufacturer (OEM) specifications, this sending unit features a robust, corrosion-resistant construction that ensures reliable operation under demanding conditions. Its precision-engineered internal components, including a durable potentiometer and sealed housing, provide accurate and consistent oil pressure readings to the vehicle s dashboard gauge or electronic control module, helping drivers avoid costly engine damage from low oil pressure or improper lubrication. The unit is specifically tailored for compatibility with a wide range of General Motors applications, including select Chevrolet, GMC, Buick, and Cadillac models, making it an ideal choice for both professional mechanics and DIY enthusiasts seeking a trusted, long-lasting solution. With its straightforward installation requiring only basic tools and minimal disassembly this sending unit eliminates the need for costly diagnostic trips or guesswork, ensuring peace of mind during maintenance or repairs. Built to withstand high temperatures and mechanical stress, the ACDelco 4.079351 delivers dependable performance, reinforcing its reputation as a premium aftermarket alternative to OEM parts. Whether replacing a worn-out or faulty original unit or upgrading an older vehicle s system, this sending unit offers a seamless blend of accuracy, durability, and ease of use.

### **Pros and Cons of buying a ACDelco 4.079351 Oil Pressure Sending Unit (Part #89057490)**

1. **OEM Quality and Reliability** ACDelco is a trusted brand under General Motors, known for producing high-quality aftermarket parts that meet or exceed OEM specifications. This sending unit is designed to function similarly to the original equipment, ensuring proper oil pressure monitoring.

2. **Direct Fitment** The part number (89057490) is specifically engineered for compatibility with certain GM vehicles (such as the 4.0L V6 found in older models like the Chevrolet Lumina, Monte Carlo, and some GMC vehicles). This reduces the risk of installation issues due to sizing or threading mismatches.

3. **Durability and Longevity** ACDelco components are built to withstand typical operating conditions, reducing the likelihood of premature failure. The sending unit is designed to last as long as the original, provided it is installed and maintained correctly.

4. **Widely Available** As a well-known brand, this part is easy to find in auto parts stores, online retailers (Amazon, RockAuto, AutoZone, etc.), and through dealerships. Availability ensures quick replacement if issues arise.

5. **Cost-Effective Alternative to OEM** While not as cheap as generic aftermarket parts, ACDelco offers a balance between affordability and quality. It is often priced lower than genuine GM parts but still provides reliability.

6. **Easy Installation** The design is straightforward, and many mechanics or DIYers can replace it without specialized tools. The sending unit typically requires only basic removal of the oil filter housing or pan, followed by threading in the new unit.

7. **Compatibility with Aftermarket Filters** Since it is an OEM-level part, it is likely to work seamlessly with aftermarket oil filters, reducing the risk of leaks or improper sealing.

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1. **Higher Price Than Generic Brands** While still reasonable, ACDelco parts are more expensive than no-name or budget aftermarket alternatives. If cost is a major concern, cheaper options may be available, though with potential trade-offs in quality.

2. **Potential Counterfeit Risks Online** Purchasing from unverified sellers (especially on third-party marketplaces) could result in receiving a fake or low-quality part. Always buy from reputable sources to avoid this risk.

3. **Limited Warranty Compared to OEM** ACDelco typically offers a 1-year limited warranty, whereas OEM parts may come with longer warranties (e.g., 3 5 years). If the part fails soon after installation, you may incur additional costs.

4. **Mixed Reviews on Longevity in Some Cases** While most users report reliable performance, some owners have reported premature failure (e.g., within 2 3 years) due to manufacturing defects or installation errors. This is relatively rare but worth considering.

5. **Not Universal Across All GM Vehicles** The 4.0L V6 sending unit (part #89057490) is specific to certain models. Double-check compatibility with your vehicle s exact year, trim, and engine configuration to avoid purchasing the wrong part.

6. **Requires Proper Sealing** If the sending unit is not tightened correctly or if the gasket is damaged, it can lead to oil leaks. Improper installation is a common cause of failure, so care must be taken during replacement.

7. **May Not Be Available for Older/Discontinued Models** Some older or less common GM vehicles may have discontinued parts, making it difficult to source ACDelco units. Always verify availability before purchasing.

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### **Conclusion**

The **ACDelco 4.079351 oil pressure sending unit (part #89057490)** is a strong choice for those seeking a reliable, OEM-quality replacement. Its pros such as direct fitment, durability, and ease of installation make it a practical option for most drivers. However, the higher cost compared to generic brands and the risk of counterfeit parts (if purchased from untrusted sources) are valid considerations.

If your priority is **long-term reliability and peace of mind**, ACDelco is an excellent investment. If **budget is the main concern**, you may explore other high-quality aftermarket brands (e.g., Bosch, Denso, or Motorcraft) while ensuring they are compatible with your vehicle.

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### **Recommendation**

1. **Verify Compatibility** Confirm that part #89057490 is the correct fit for your specific GM vehicle (year, model, and engine configuration). Use resources like RockAuto, Haynes manuals, or a mechanic s input to avoid mismatches.

2. **Purchase from a Trusted Source** Buy from authorized dealers, reputable online retailers (e.g., Amazon, RockAuto, or local auto parts stores with return policies), or directly from ACDelco s website to avoid counterfeit parts.

3. **Follow Installation Guidelines** Ensure the sending unit is properly torqued (typically between **20 30 ft-lbs**) and that the gasket or seal is intact to prevent leaks. Refer to your vehicle s service manual for exact specifications.

4. **Monitor Performance Post-Installation** After replacement, check for proper oil pressure readings on the dashboard. If the gauge remains at zero or fluctuates erratically, the unit may not be functioning correctly, and further diagnosis is needed.

5. **Consider a Warranty** If available, opt for an extended warranty or purchase from a retailer with a return policy in case of premature failure.

**Final Verdict:** **Buy ACDelco if you want a balance of quality, reliability, and ease of installation.** If cost is a major factor, research alternative brands (e.g., Bosch or Motorcraft) while ensuring they meet your vehicle s requirements. Always prioritize proper installation to maximize the unit s lifespan.

Details:

The ACDelco Oil Pressure Sending Units 89057490 by Hero Automotive is a high-quality engine oil pressure switch designed for direct fit applications. This product comes with a 1-year replacement warranty and is packaged in Hero box for secure delivery.

part #: 4079351 price

• $75.87

specifications fueltanksysteme:

• brand: Acdelco
• mpn: 4.079351
• type: Oil Sensors
• manufacturer warranty: Yes
• fitment: Direct Fit Application, Check Fitment Chart
• california proposition 65: Warning, Lead, Which Is Known To The State Of California To Cause Cancer, And Birth Defects Or Reproductive Harm. For More Information Go, To Www.p65warnings.ca.gov.
• upc: 649696936875

general fueltanksysteme:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

shipping fueltanksysteme:

• transit: 5-12 Days
• class: Standard
• type: Fixed
• cost: $8.00
• carrier: USPS
• service: USPS Ground Advantage

offer fueltanksysteme:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: April 4, 2026

seller fueltanksysteme:

• city: Amarillo, Texas
• # reviews: 12
• rating: 92.9%

payments fueltanksysteme:

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

returns fueltanksysteme:

• policy: No Returns

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