CHRYSLER 35554-2 Outboard Lower Unit 20HP

( Manufacturer Part Number: 35554-2 ), ( Part Type: Unit )

Review CHRYSLER 20hp Outboard Lower Unit fits 1982

The **Chrysler 35554-2 1982 20 Horsepower Outboard Lower Unit** is a meticulously engineered marine propulsion component designed to deliver reliable performance and durability for small to mid-sized boats. Part of Chrysler s legacy of outboard motor innovation, this lower unit is specifically tailored for the **20HP outboard engine**, ensuring seamless integration with the upper unit to provide smooth, efficient power transfer. Crafted with precision, this lower unit features a robust **cast aluminum housing** that resists corrosion and withstands the rigors of saltwater and freshwater environments, making it ideal for both recreational and utility applications. The **gear-driven propeller shaft** is precision-machined to minimize friction and wear, while the **sealed internal bearings** and **grease-filled housing** ensure long-lasting lubrication and protection against water ingress. This lower unit is equipped with a **standard 1-inch propeller shaft** and a **quick-release mechanism**, allowing for easy propeller removal and maintenance without the need for specialized tools. Its **universal compatibility** with 1982-model 20HP outboards ensures a perfect fit, while the **durable bronze propeller nut** and **secure mounting flange** guarantee a tight, vibration-free connection to the engine. Whether used on a fishing boat, a small cruiser, or a utility vessel, this lower unit delivers the dependable performance expected from Chrysler s marine engineering combining strength, efficiency, and ease of service for years of trouble-free operation.

The **Chrysler 35554-2 1982 20HP outboard lower unit** is a mid-sized, two-stroke outboard motor component that has been used in various boats over the years. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Reliability and Durability**

The Chrysler (now Mercury Marine) 20HP outboard lower units from the early 1980s were designed with solid engineering, particularly in the lower unit housing, which houses the propeller shaft, gears, and oil pump. These units were built to withstand heavy loads, making them suitable for fishing boats, small cruisers, and workboats. Many still function well after decades of use if properly maintained.

2. **Availability of Parts**

As a relatively common model from the early 1980s, parts such as gaskets, seals, bearings, and gears are still available through marine supply stores, eBay, or online marketplaces. This makes repairs more accessible compared to rare or discontinued models.

3. **Compatibility with Older Boats**

If you re restoring or maintaining an older boat (e.g., a 1970s 1980s model), this lower unit is likely a direct replacement for the original. It fits standard mounting patterns and shaft configurations, reducing the need for modifications.

4. **Cost-Effective Replacement**

Purchasing a used lower unit (rather than a new one) can be significantly cheaper than buying a complete 20HP outboard motor. This is ideal if you already have the upper unit, drive shaft, or other components and just need the lower unit.

5. **Proven Performance**

The 20HP outboard was a workhorse in its time, often used in fishing boats and small commercial applications. The lower unit s gear ratio and propeller shaft design were optimized for efficiency and power delivery, which can still be beneficial in the right application.

6. **Ease of Maintenance**

Lower units are relatively straightforward to service. Replacing seals, bearings, and gears is a manageable DIY task for someone with basic mechanical skills. The simplicity of the design also means fewer points of failure compared to modern, more complex outboards.

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### **Cons**

1. **Age and Wear**

- **Worn bearings or gears** (leading to vibration or rough operation).

- **Cracked or degraded housing** (from corrosion or impact damage).

- **Leaking seals** (common in older units due to dried-out rubber).

If the unit has been stored improperly (e.g., in saltwater or without oil), internal components may be severely degraded.

2. **Corrosion Risk**

Two-stroke outboard lower units are prone to corrosion, especially if they ve been exposed to saltwater or improperly stored. Rust can weaken the housing, gears, or shaft, leading to failure. A thorough inspection is critical before purchase.

3. **Environmental Regulations**

Two-stroke outboard motors (including this model) are no longer sold in many regions due to environmental concerns over oil consumption and emissions. While this lower unit itself may not be illegal to use, some marinas or waterways may restrict or ban older two-stroke engines. Check local regulations before purchasing.

4. **Limited Performance Compared to Modern Units**

Modern outboards (even small ones) offer significantly better fuel efficiency, power-to-weight ratios, and reliability. A 20HP unit from the 1980s will not match the performance of a contemporary 20HP four-stroke or even a newer two-stroke (though the latter are rare today).

5. **Potential for Hidden Damage**

- **Cracked or bent shaft** (from overloading or improper handling).

- **Worn oil pump** (leading to lubrication failure).

- **Seized gears** (from lack of maintenance).

A used unit may require significant repairs or could fail shortly after purchase.

6. **Resale Value and Long-Term Viability**

Even if the unit works now, its long-term viability is questionable. Modern marine parts and labor costs may make repairs expensive over time. If you plan to keep the boat for years, a newer lower unit (or a complete modern outboard) may be a more practical choice.

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### **Conclusion**

The **Chrysler 35554-2 1982 20HP lower unit** can be a **cost-effective and reliable solution** if you need a replacement for an older boat and are willing to invest time in inspection and maintenance. It excels in **durability, part availability, and compatibility with classic boats**, making it a good choice for enthusiasts restoring vintage vessels or those on a tight budget.

However, it is **not ideal** if you prioritize **modern performance, environmental compliance, or long-term reliability**. The unit s age introduces risks of **corrosion, wear, and hidden damage**, which could lead to costly repairs or failure. Additionally, the **environmental restrictions on two-stroke engines** may limit where you can use it in the future.

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### **Recommendation**

- **Buy the unit used** (preferably from a trusted seller with a service history).

- **Inspect it thoroughly** (look for cracks, corrosion, smooth operation, and no leaks).

- **Service it immediately** (replace seals, bearings, and oil pump if needed).

- **Use it in freshwater or lightly saltwater** to extend its lifespan.

- **Be prepared for maintenance** older units require regular checks.

- Consider a **used or new four-stroke lower unit** (e.g., Mercury, Yamaha, or Evinrude) that meets current environmental standards.

- If budget is a concern, a **complete used 20HP four-stroke outboard** (e.g., a 2000s model) may be a better long-term investment.

- **Get it professionally inspected** before purchasing.

- **Test-run it** (if possible) to ensure it operates smoothly.

- **Budget for potential repairs** older units often need work beyond just the lower unit (e.g., upper unit, drive shaft).

The **1982 Chrysler 35554-2 lower unit is a viable budget-friendly option for classic boat restorations**, but it is **not a future-proof or high-performance choice**. If you re comfortable with maintenance and don t mind its limitations, it can be a good addition to your project. For most modern or long-term applications, a newer lower unit would be the smarter investment.

Details:

With 20hp of power, this lower unit is compatible with Chrysler outboard engines from the year 1982, ensuring a proper fit and optimal functionality for your boats propulsion system. The 1982 Chrysler 20hp Outboard Lower Unit is a crucial component for maintaining and repairing outboard engines on boats.

part #: 355542 prices

• $100.00-$266.99

specifications ouboaen:

• for makes: Chrysler
• for years: 1982
• mpn: 35554-2
• part type: Unit

returns ouboaen:

• policy: No Returns

offer ouboaen:

• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock
• started: March 29, 2026
• best offers: True

payments ouboaen:

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

seller ouboaen:

• city: Deford, Michigan
• rating: 100.0%
• # reviews: 117

shipping ouboaen:

• cost: $27.95
• class: Standard
• service: USPS Ground Advantage
• type: Calculated
• transit: 4-10 Days
• carrier: USPS

general ouboaen:

• condition: Used
• Boat Parts > Outboard Engines Components > Complete Outboard Lower Units

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