GM 79-9265-ND Oil Design Water Pressure Gauge 79-87 2ND 25025563

( Brand: Gm ), ( Manufacturer Part Number: 79-9265-ND ), ( Unit Of Measure: Psi ), ( Needle Color: Red ), ( Type: Oil Pressure Gauge ), ( Display Type: Analog ), ( Oe/oem Part Number: 25025563 ), ( Color: Black ), ( Style: Vintage ), ( Material: Metal ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review GM 79-87 Chevy Oil Pressure Gauge 2nd Design Replaces Gm# fits K10

The **GM 79-9265-ND (79-87 Chevy K10 Oil Pressure Gauge, 2nd Design, Part #25025563)** is a precision-engineered, aftermarket oil pressure gauge specifically designed to seamlessly integrate with General Motors 1979 1987 K10 series engines, including models like the K10, K14, and related small-block applications. This gauge is part of the second-generation design iteration, which refined the original model with improved accuracy, durability, and ease of installation. Built to GM s original specifications, it features a robust, analog dial with a clear, backlit face that provides real-time oil pressure readings in PSI (pounds per square inch), allowing drivers to monitor engine health with confidence. The gauge s housing is constructed from high-quality, corrosion-resistant materials, ensuring longevity even in demanding environments, while its threaded mounting bracket ensures a secure and leak-free fit into the engine bay s designated gauge sender housing. The needle-style pointer delivers precise, easy-to-read measurements, with a full-scale range typically spanning from 0 to 100 PSI, making it ideal for both diagnostic purposes and routine maintenance checks. Whether installed in a classic K10 pickup truck, a vintage Chevy van, or a custom hot rod, this gauge serves as an essential diagnostic tool, helping to prevent catastrophic engine failure by alerting the driver to low oil pressure an early warning sign of potential issues like worn bearings, oil pump failure, or low oil levels. Its compatibility with the 250, 255, and 292 cubic-inch small-block Chevy engines (common in the K10 lineup) makes it a trusted choice for enthusiasts and mechanics alike, bridging the gap between factory reliability and modern aftermarket performance.

### **Pros and Cons of buying a GM 79-9265-ND (79-87 Chevy K10 Oil Pressure Gauge, 2nd Design, Part #25025563)**

1. **Compatibility** Designed specifically for **1979 1987 Chevy K10 engines**, ensuring a proper fit without modification.

2. **Reliable Design** The **second-generation model** (introduced around 1982) is an improved version of the original, with better durability and accuracy.

3. **Mechanical Operation** Uses a **mechanical sender and gauge** rather than electronic sensors, reducing reliance on electrical systems prone to failure.

4. **Easy Installation** Designed for straightforward wiring and mounting, requiring minimal tools and expertise.

5. **Budget-Friendly** Generally **affordable** compared to aftermarket alternatives, especially when sourced from reputable dealers or salvage yards.

6. **Proven Performance** Widely used in the K10 community, with many drivers reporting reliable service over time.

7. **Simple Maintenance** If issues arise, parts (like the sender or gauge) are often easy to replace or repair.

8. **Stock Replacement** If your original gauge failed, this is the **OEM replacement**, ensuring the same functionality as the factory unit.

1. **Age-Related Wear** Being a **nearly 40-year-old part**, the sender or gauge may have **internal wear** if the unit has been stored for a long time.

2. **Limited Availability** While common, **not all auto parts stores carry it**, requiring special ordering or sourcing from salvage yards.

3. **Potential Calibration Issues** Some users report **inaccuracies** if the sender or gauge was not properly recalibrated after installation.

4. **Mechanical Sensitivity** The gauge relies on **oil pressure to move a needle**, meaning clogged oil passages or low oil levels can cause false readings.

5. **Wiring Concerns** If the wiring harness is damaged or corroded, it may require **additional repair work** beyond just the gauge.

6. **No Digital Readings** Unlike modern digital gauges, this is **analog-only**, which some drivers find less precise for diagnostics.

7. **Possible Counterfeit Risks** Some sellers may offer **fake or mismatched parts**, so purchasing from a **trusted source** is crucial.

---

### **Conclusion**

The **GM 79-9265-ND oil pressure gauge** is a **solid, reliable choice** for **1979 1987 Chevy K10 owners** who need a **direct OEM replacement**. Its **mechanical simplicity** makes it durable and easy to maintain, while its **specific design** ensures compatibility without modifications. However, buyers should be aware of **potential age-related wear, wiring issues, and calibration concerns**.

If you **prioritize simplicity, cost-effectiveness, and OEM fitment**, this gauge is a **strong recommendation**. If you prefer **modern digital alternatives** or suspect wiring problems, you may need to invest in additional diagnostics or a different gauge type.

- **Buy from a reputable source** (eBay with verified sellers, junkyards, or Chevy specialty shops).

- **Inspect the gauge and sender** for damage before purchasing.

- **Test the wiring** before installation to avoid electrical issues.

- **Consider a backup oil pressure switch** if you want additional monitoring.

- **If available, a slightly newer aftermarket analog gauge** (like those from **AEM or Motec**) may offer better accuracy and longevity.

For most K10 owners, this **GM gauge remains a practical and cost-effective solution** for maintaining proper oil pressure monitoring.

Details:

Oil pressure gauge 2nd design OEM. 1979 1980 1981 1982 1983 1984 1985 1986 1987, Suburban Blazer Jimmy K10 K20 K30 K5 C10 C20 C30 New in box. Never installed.

part #: 799265 prices

• $50.00-$84.15

specifications boosttempgauges:

• for models: K10
• for makes: Chevy
• brand: Gm
• mpn: 79-9265-nd
• unit of measure: Psi
• needle color: Red
• type: Oil Pressure Gauge
• display type: Analog
• oe/oem part number: 25025563
• color: Black
• style: Vintage
• material: Metal
• vintage part: Yes
• universal fitment: No

seller boosttempgauges:

• city: Columbia, South Carolina
• rating: 0.0%
• # reviews: 26

returns boosttempgauges:

• policy: No Returns

shipping boosttempgauges:

• type: Calculated
• service: USPS Ground Advantage
• class: Standard
• transit: 5-12 Days
• cost: $8.30
• carrier: USPS

payments boosttempgauges:

• other
• credit card: Diners-club
• wallet: Apple-pay

offer boosttempgauges:

• sold: 0
• quantity: 1
• best offers: True
• started: February 7, 2026
• availability: In Stock
• options: Ship-to-home

general boosttempgauges:

• condition: New other see details
• Interior Parts Accessories > Gauges > Individual Gauges

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