JEEP/PLYMOUTH TRUCK 257-02940 Speedometer Cluster Mph Tachometer

( Brand: Jeep/plymouth Truck ), ( Part Type: Speedometer Tachometer ), ( Genuine Oem: Yes ), ( Ipn: 257-02940 ), ( Make: Jeep/plymouth )

Review JEEP/PLYMOUTH TRUCK Speedometer Cluster Mph Without Tachometer fits NITRO 2007

The **Jeep/Plymouth 257-02940 Speedometer Cluster (07 Nitro)** is a meticulously crafted, high-performance instrument panel component designed to deliver unparalleled precision and reliability for vintage Jeep and Plymouth vehicles, particularly those equipped with the legendary **07 Nitro engine**. This iconic speedometer cluster combines classic styling with robust engineering, featuring a **chrome-plated bezel** that exudes timeless elegance while ensuring durability under demanding driving conditions. The **analog dials** including the **speedometer** and **tachometer** are mounted on a sturdy, black-painted metal housing, providing a striking contrast against the instrument panel s surroundings. The **speedometer** is calibrated in miles per hour (mph), offering a clear, easy-to-read display with a smooth, weighted needle that responds instantly to changes in speed, while the **tachometer** measures engine RPMs up to **6,000**, allowing drivers to fine-tune their throttle for optimal performance. The **07 Nitro-specific design** ensures compatibility with the high-revving, high-torque characteristics of this legendary engine, making it an essential upgrade for enthusiasts seeking both functionality and authenticity. Built to withstand the rigors of off-road adventures and spirited driving, this cluster is constructed from high-quality materials, including **durable metal components** and **precision-engineered gears**, ensuring long-lasting performance. Whether installed in a restored classic Jeep CJ or a meticulously rebuilt Plymouth, the **257-02940 Speedometer Cluster** enhances the driving experience with its **sharp readability, classic aesthetics, and uncompromising craftsmanship**, making it a must-have for any true automotive purist.

The **Jeep/Plymouth 257-02940 speedometer cluster** (model **07 Nitro**) is a classic automotive gauge assembly commonly found in vintage Jeep CJ, Willys, and Plymouth vehicles from the 1960s to early 1970s. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a 257-02940 Speedometer Cluster (07 Nitro)**

1. **Authentic Vintage Fitment**

- This gauge cluster is designed specifically for Jeep CJ-5, CJ-6, Willys MB/M38A1, and some Plymouth models, ensuring a perfect mechanical and aesthetic fit. Restoring or replacing it with an original part preserves the vehicle s historical integrity.

2. **Reliable Mechanical Operation**

- The **07 Nitro** model features a **mechanical speedometer** (driven by the vehicle s speed sensor) and a **tachometer** (mechanical or electrical, depending on the vehicle s wiring). These gauges are built to last decades with proper maintenance, making them a durable choice for classic cars.

3. **Classic Styling**

- The **chrome-plated bezel, analog dials, and retro styling** add to the vintage appeal of Jeep and Willys vehicles. Many enthusiasts prefer the look of mechanical gauges over modern digital alternatives.

4. **Easy to Find Replacement Parts**

- As a widely used gauge, replacement bulbs (for the speedometer), wiring harnesses, and even entire clusters are relatively accessible, especially from specialty suppliers like **Jeep Parts Unlimited, Classic Parts Warehouse, or eBay**.

5. **Compatibility with Aftermarket Mods**

- The cluster can be adapted for modern vehicles with minor wiring adjustments (e.g., converting a mechanical tach to an electrical one). Some aftermarket speed sensors (like those from **Delco or ACDelco**) can be used for better accuracy.

6. **Lower Cost Than New Gauges**

- Purchasing a used or refurbished **257-02940 cluster** is significantly cheaper than buying a new OEM replacement or a modern aftermarket gauge set.

7. **Collectible Value**

- In well-preserved condition, this gauge cluster can hold value for collectors, especially if paired with a rare or restored Jeep/Willys vehicle.

---

### **Cons of buying a 257-02940 Speedometer Cluster (07 Nitro)**

1. **Potential for Wear and Tear**

- Older clusters may have **worn wiring, cracked dials, or failing bulbs** (especially the speedometer s filament). Testing the gauge before purchase is crucial to avoid buying a non-functional unit.

2. **Mechanical Speedometer Limitations**

- **Mechanical speedometers** (driven by a cable or rod from the transmission) can be less accurate than electronic ones, especially if the drive mechanism (e.g., the speed sensor or cable) is worn. This may lead to slight inaccuracies in speed readings.

3. **Tachometer Electrical Issues**

- The **tachometer** in this cluster is often **mechanical** (driven by a pickup coil in the distributor) rather than electronic. If the vehicle has an **electronic ignition system**, the tach may not work unless modified or replaced with an **electronic tachometer**.

4. **Wiring and Compatibility Challenges**

- Some **Plymouth or later Jeep models** may require **adapters or modifications** to match the cluster s wiring harness to the vehicle s electrical system. A **voltage drop test** is recommended to ensure proper function.

5. **Limited Modern Functionality**

- Unlike modern digital gauges, this cluster **cannot display RPM, fuel level, or temperature** unless additional gauges are added. It lacks features like **trip meters, odometer resets, or digital readouts**.

6. **Risk of Counterfeit or Poor-Quality Replacements**

- Some sellers on eBay or Facebook Marketplace may offer **fake or poorly made replicas** that don t function correctly. Always verify the gauge s **serial number, authenticity, and functionality** before purchasing.

7. **Maintenance Requirements**

- The **speedometer cable or rod** may need periodic lubrication to prevent sticking. The **bulb in the speedometer** can burn out and may be hard to replace if the cluster is sealed.

8. **Not Ideal for High-Mileage or Modified Vehicles**

- If the vehicle has **high RPMs (due to turbocharging or forced induction)**, the **mechanical tachometer** may not handle the load well, leading to inaccuracies or failure.

---

### **Conclusion**

The **257-02940 speedometer cluster (07 Nitro)** is an excellent choice for **Jeep/Willys enthusiasts** who prioritize **authenticity, classic styling, and mechanical reliability**. It is well-suited for **restoration projects, show cars, or daily drivers** where vintage aesthetics are important. However, buyers should be prepared for **potential mechanical issues, wiring compatibility challenges, and the need for occasional maintenance**.

For **modern or heavily modified vehicles**, a **digital or electronic gauge set** (such as those from **Delco, ACDelco, or aftermarket brands like Speedhawk**) may offer better accuracy and functionality. But for **purists and collectors**, the **257-02940 remains a timeless and desirable option**.

---

### **Recommendation**

- You are restoring or maintaining a **vintage Jeep CJ, Willys MB, or Plymouth** and want **authentic parts**.

- You prefer **mechanical gauges** for their **retro look and durability**.

- You are willing to **test the gauge for functionality** before purchasing.

- You can **source compatible wiring or adapters** if needed.

- You need **modern features** (digital readouts, trip meters, etc.).

- The vehicle has **electronic ignition** and the tachometer won t work without modification.

- You expect **high precision** (mechanical gauges can drift over time).

- You cannot verify the gauge s **authenticity and working condition** before buying.

- **Test the gauge** (spin the tachometer to check RPM reading, verify speedometer accuracy).

- **Check for cracks, rust, or damaged wiring**.

- **Confirm compatibility** with your vehicle s speed sensor and ignition system.

- **Consider buying from a reputable seller** (e.g., **Classic Parts Warehouse, Jeep Parts Unlimited, or a trusted eBay vendor**).

- **Have a wiring diagram** ready in case modifications are needed.

For most **Jeep/Willys purists**, this cluster is a **worthwhile investment** just approach it with **due diligence** to ensure it meets your needs.

Details:

Items marked Sold AS-IS are final sale with no warranty. Speedometer Cluster MPH Without Tachometer Fits 07 NITRO 374047. Some listings include a warranty and others do not. Useful Links.

Airbags are not tested to meet any safety standards. Airbags must be installed in accordance with vehicle manufacturers specifications. Flush and inspect cooling lines. And engage torque converter into front pump.

Daytime phone number is required load will not deliver until appointment scheduled. Replace oil, air and fuel filters. Fill transmission with manufacturer specified fluid. Replace valve cover gaskets.

Adjust throttle position sensor cable. NOTE: Image shown may be the vehicle from which, part was pulled, or a generic image representing, typical stock, rather than unique item being sold. Warranty Information:: Please review the listing for specific warranty details. Buyer accepts all risk of damages/injuries if not installed properly.

Differentials: All internal lubricated parts within the drive axle housing are guaranteed in good working condition at time of purchase. Scan, record and clear all codes before removing original unit. All other parts included are considered accessories or extra. They will not have any packaging included.

Install new spark plugs wires. Scan, record and clear all codes before removing the original unit. Replace all seals. Residential Address:Curbside delivery only.

NITRO 07 cluster, MPH, w/o tachometer. Used tires are not tested or labeled by MAS to meet any safety standards. Install new belts and hoses. Items will not be released without it.

Replace thermostat gasket. Que Beck: 5% GST 9.975% TVQ 14.975%, Ontario/New Brunswick/Newfoundland 13% HST, Manitoba 8% PST Nova Scotia 15% British Columbia 7% 12% Saskatchewan 10% All Other Canada Provinces 5% GST. A daytime phone number is required to schedule the delivery. Drain and replace engine oils to manufacture suggested levels.

Transmissions: are warrantied to be in good working order against any slippage or shifting failures. If needed, replace timing gears, chains or belts gaskets. Flush cooling system re-fill to proper level. Replace oil pan gasket and rear main seal.

An adult over 18 must be present for delivery. Install new filter kit.

part #: 257-02940 prices

• $84.47-$111.99

specifications boosttempgauges:

• for models: Nitro
• for makes: Jeep
• for years: 2007
• brand: Jeep/plymouth Truck
• part type: Speedometer Tachometer
• genuine oem: Yes
• ipn: 257-02940
• make: Jeep/plymouth

seller boosttempgauges:

• # reviews: 6771
• rating: 98.8%
• city: Camden, New Jersey

shipping boosttempgauges:

• class: Standard
• carrier: FedEx
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• transit: 2-6 Days
• cost: $0.00

payments boosttempgauges:

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

offer boosttempgauges:

• started: April 23, 2026
• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1

general boosttempgauges:

• condition: Used
• Interior Parts Accessories > Gauges > Individual Gauges

returns boosttempgauges:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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