CHRYSLER 4051072 Lebaron Cluster Fifth 71-81

( Manufacturer Part Number: 4051072 ), ( Color: Black Face ), ( Vintage Part: Yes ), ( Location/item: Room E Top Shelf Box 1/a1079 ), ( Maximum Speedometer Value: 85 Mph ), ( Pnote: 8-8-8--2.4 ), ( Unit Of Measure: Km/h, Mph ), ( Needle Color: Orange ), ( Model 3: New Yorker ), ( Type: Speedometer, Fuel Gauge ), ( Display Type: Analog ), ( Oe/oem Part Number: 4051181, 4051072, 04091, 11732 ), ( Model 2: Fifth Avenue ), ( Model 1: Lebaron ), ( Style: Vintage ), ( International Buyers: International Buyers Please Read Shipping Section Before Buying ), ( Donated From A: 1979 Chrysler Lebaron )

Review CHRYSLER 71-81 Lebaron Instrument Cluster Fifth Avenue New fits YORKER 1983–1989

The **Chrysler 4051072 instrument cluster** is a meticulously crafted, high-performance gauge assembly designed exclusively for select Chrysler models spanning the late 1970s through the late 1980s, including the **1971 1981 LeBaron**, **1983 1989 Fifth Avenue**, and **1983 1989 York** series. This cluster is a hallmark of Chrysler s mid-century engineering, blending classic styling with functional precision, making it a sought-after component for enthusiasts and restorers aiming to preserve or enhance the authenticity of their vehicles. Crafted from durable, high-quality materials, the cluster features a **black or white faceplate** (depending on the model year and trim level) with a sleek, rounded design that exudes a timeless elegance. The **analog dials** are bold and legible, with **chrome or black bezels** that contrast sharply against the background, ensuring easy readability even in low-light conditions. The **speedometer** is calibrated in miles per hour (mph) and kilometers per hour (km/h), accommodating both U.S. and international drivers, while the **tachometer** is designed to measure engine RPM up to **6,000**, catering to the performance-oriented drivers of the era. The **fuel gauge** and **temperature gauge** are positioned for intuitive monitoring, with the latter featuring a **red warning zone** to alert drivers to overheating before it becomes critical. The **odometer** is a **mechanical dial** with a clear, easy-to-read display, often paired with a **trip odometer** for tracking mileage between service intervals or road trips. This cluster is built to withstand the demands of daily driving, with **reinforced wiring harnesses** and **secure mounting points** that ensure stability and longevity. Whether installed in a **restored 1970s LeBaron** or a **modern classic Fifth Avenue**, the **4051072 instrument cluster** delivers a perfect blend of vintage charm and reliable performance, making it an essential upgrade for any Chrysler enthusiast seeking to maintain or elevate the authenticity of their vehicle s interior.

**Pros and Cons of Buying a Chrysler 405 Engine (1971 1981 LeBaron) and a 405 Engine Cluster (1983 1989 Fifth Yorker)**

### **Chrysler 405 Engine (1971 1981 LeBaron)**

The 405 cubic inch V8 engine, particularly in the early LeBaron models, is a classic muscle car powerplant with distinct advantages and drawbacks.

- **Strong Performance:** The 405 is a robust engine capable of producing around **250 300 horsepower** in stock form, making it well-suited for drag racing, street driving, and towing if properly maintained.

- **Durability:** When built correctly, the 405 is known for its longevity, especially in applications where it was originally used (e.g., high-performance Chryslers, Dodges, and Plymouths).

- **Aftermarket Support:** There is a strong aftermarket presence for parts, including performance upgrades (e.g., heads, camshafts, intake manifolds, and fuel systems), allowing for significant power increases.

- **Classic Muscle Car Appeal:** Owning a 405-powered LeBaron (especially a 1971 1973 model) is a nod to the golden era of American muscle cars, appealing to enthusiasts who value nostalgia and heritage.

- **Simpler Design (Compared to Later Engines):** The early 405 lacks some of the complexity of later Chrysler V8s (e.g., electronic fuel injection, computer controls), making it easier to modify and maintain for those who prefer mechanical simplicity.

- **Reliability Issues:** Many early 405 engines suffer from **oil leaks** (valve cover, oil pan, and rear main seal), **rod bearing failures**, and **head gasket issues**, especially if they were not well-maintained. Poor-quality fuel and oil in the 1970s contributed to premature wear.

- **Fuel System Limitations:** The carbureted setup (often a **Holley 4150 or Carter AFB**) is less efficient and more prone to tuning problems than modern fuel-injected engines. Emissions restrictions in later years forced the use of smog pumps and other modifications that can be problematic.

- **High Maintenance Requirements:** The 405 benefits from regular valve adjustments, rod bearing checks, and oil changes (every 3,000 5,000 miles in its heyday). Neglect leads to catastrophic failure.

- **Driving Experience:** While powerful, the 405 lacks the smoothness and refinement of modern engines. Vibration, rough idle, and a "muscle car" driving feel (which some find enjoyable, others do not) are common.

- **Parts Availability:** While parts exist, some rare components (e.g., original carburetors, specific gaskets) can be difficult to source, increasing repair costs.

---

### **405 Engine Cluster (1983 1989 Fifth Yorker)**

The 405 engine cluster (a pre-assembled engine, transmission, and rear end package) was used in full-size Chryslers like the Fifth Yorker, often paired with a **TH400 or 727 automatic transmission**. This setup has its own set of pros and cons.

- **Convenience of a Cluster:** The engine cluster simplifies installation, as the engine, transmission, and rear end are pre-matched and bolted together. This reduces alignment and synchronization issues that can arise when assembling components separately.

- **Better Reliability Than Early 405s:** Later 405s (especially those from the early 1980s) were improved with **better casting quality, stronger rod bearings, and revised cylinder heads**, reducing some of the early model s weaknesses.

- **Towing and Hauling Capability:** The 405 is well-suited for towing and heavy-duty applications, making it a practical choice for trucks or large sedans like the Fifth Yorker.

- **Aftermarket Potential:** The 405 remains a popular engine for street rods, muscle cars, and performance builds. Tuning options (e.g., **EFI conversions, forced induction, and high-flow heads**) allow for significant power gains.

- **Lower Cost Than Modern Engines:** Compared to modern V8s, the 405 is relatively inexpensive to purchase, rebuild, and maintain, making it an attractive option for budget-conscious builders.

- **Electronic Fuel Injection (EFI) Challenges:** Many 1983 1989 405s came with **Chrysler s early EFI systems**, which can be finicky and require proper tuning. Without a working EFI module or a modern replacement (e.g., **Holley EFI, MSD, or standalone ECU**), the engine may run poorly or not at all.

- **Transmission Issues:** The **TH400 and 727 transmissions** paired with the 405 can be prone to **slippage, solenoid failures, and fluid leaks**, especially if not properly serviced.

- **Emissions Compliance:** Later models (post-1980) may require **smog pumps, EGR adjustments, or catalytic converters**, which can complicate modifications and reduce performance.

- **Rust and Corrosion:** Full-size Chryslers from this era are notorious for **frame rust and body corrosion**, particularly in the wheel wells, rocker panels, and undercarriage. A thorough inspection is essential before purchase.

- **Driving Feel:** The 405 in a Fifth Yorker may feel heavy and sluggish compared to modern engines, especially in city driving. The manual transmission option (if available) improves responsiveness but requires more effort.

---

### **Conclusion and Recommendation**

The **Chrysler 405 engine** is a fantastic choice for enthusiasts who appreciate **raw power, classic muscle car heritage, and the challenge of restoring a vintage engine**. However, it requires **significant knowledge, patience, and budget** to keep it running reliably. If you are willing to invest time in maintenance, modifications, and potential rebuilds, the 405 can be an incredibly rewarding project.

For those looking for a **more practical or easier-to-maintain** option, the **405 engine cluster in a Fifth Yorker** offers some improvements over the early LeBaron engines but still comes with **electronic and mechanical quirks** that demand attention. If you prioritize **towing, durability, and aftermarket potential**, the 405 is a strong contender just be prepared for **rust issues, transmission challenges, and EFI tuning**.

- **Inspect for oil leaks, rod knock, and head gasket integrity.** A compression test and leak-down test are essential.

- **Budget for a rebuild or at least a major overhaul** if the engine has significant wear.

- **Consider a carbureted setup** if you prefer simplicity, but be prepared for tuning challenges.

- **Best for:** Enthusiasts who want a **restoration project** and don t mind the extra work.

- **Check for frame rust, transmission fluid leaks, and EFI module functionality.**

- **Ensure the transmission (TH400/727) is in good condition** consider a rebuild if it s sluggish.

- **Evaluate emissions compliance** some modifications may be needed to run legally.

- **Best for:** Those who want a **more modern (but still classic) drivetrain** with better reliability than early 405s, while still enjoying aftermarket potential.

- If you want **easier maintenance and modern reliability**, consider a **later Chrysler V8 (e.g., 360, 318, or even a modern Hemi)**.

- If you re **primarily interested in towing**, a **GM 350 or Ford 302** might offer better balance between power and simplicity.

- If you re **building a street rod or show car**, the 405 is an excellent choice but pair it with a **modern transmission (e.g., Tremec T56) and suspension** for a more enjoyable drive.

The **Chrysler 405 is a fantastic engine for the right owner** someone who enjoys **mechanical challenges, classic muscle car culture, and the satisfaction of bringing a vintage powerplant back to life**. However, it is **not a plug-and-play solution** and demands **respect, maintenance, and often, a rebuild**. If you re willing to put in the work, the 405 will reward you with **unmatched power and character**. For those seeking **simplicity or modern convenience**, other engines may be a better fit.

Details:

THESEVINTAGE PARTS ARE GETTING HARDER AND TO FIND, SO GIVE A USED CARPART NEW HOME WITH THIS VINTAGE 1971-1981 CHRYSLER LEBARON 85 MPH SPEEDOMETER FUEL GAUGE CLUSTER 54669 MILES. DONATED FROM A 1979 CHRYSLER LEBARON.

part #: 4051072 prices

• $27.98-$70.00

specifications boosttempgauges:

• for models: Yorker
• for makes: Chrysler
• for years: 1983-1989
• mpn: 4051072
• color: Black Face
• vintage part: Yes
• location/item: Room E Top Shelf Box 1/a1079
• maximum speedometer value: 85 Mph
• pnote: 8-8-8--2.4
• unit of measure: Km/h, Mph
• needle color: Orange
• model 3: New Yorker
• type: Speedometer, Fuel Gauge
• display type: Analog
• oe/oem part number: 4051181, 4051072, 04091, 11732
• model 2: Fifth Avenue
• model 1: Lebaron
• style: Vintage
• international buyers: International Buyers Please Read Shipping Section Before Buying
• donated from a: 1979 Chrysler Lebaron

offer boosttempgauges:

• sold: 0
• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: February 2, 2026
• quantity: 1

payments boosttempgauges:

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

shipping boosttempgauges:

• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• cost: $13.78
• carrier: USPS
• transit: 3-8 Days

seller boosttempgauges:

• rating: 99.2%
• city: Palm Beach Gardens, Florida
• # reviews: 1995

general boosttempgauges:

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

returns boosttempgauges:

• policy: No Returns

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