OLDSMOBILE 166580 Manual Transmission Firenza 4-121

( Manufacturer Part Number: 166580 ), ( Model: FIRENZA ), ( Color: Grey ), ( Genuine Oem: No ), ( Type: Manual Transmission Assembly ), ( Manufacturer Warranty: 90 Day ), ( Interchange Item Code: 400 )

Review OLDSMOBILE Used Manual Transmission Assembly Firenza Mt Speed fits 1986

Introducing the Oldsmobile 1986 Firenza with a 4-speed manual transmission and engine code 166580. This vehicle is a prime example of automotive engineering from the late 1980s. The Firenza's engine is a 2.5L Inline-4, which delivers a balance of power and fuel efficiency. With a manual transmission, you're in complete control of your driving experience.

The 4-speed manual transmission offers short, precise throws, allowing for smooth and deliberate gear changes. It pairs perfectly with the 2.5L Inline-4 engine, providing a responsive driving experience. The close-ratio gearing in the transmission ensures that power is delivered efficiently to the wheels, making this Firenza an agile and engaging vehicle to drive.

Under the hood, the engine features a compact design, which contributes to the vehicle's nimble handling and impressive fuel economy. The engine block is made of cast iron for durability and strength, while the cylinder head is made of aluminum for lighter weight and better heat dissipation. The engine also comes equipped with a single overhead camshaft (SOHC) design, which maximizes valve lift and improves overall engine performance.

The 1986 Oldsmobile Firenza with the 166580 engine code is not just about power and performance; it also boasts a comfortable and practical interior. The cabin is well-appointed with features such as comfortable seating, ample legroom and headroom, and a dashboard designed with ease-of-use in mind. The manual transmission provides a direct connection between the driver and the vehicle, making every drive an enjoyable experience.

The Firenza's exterior design is both stylish and functional. Its aerodynamic shape reduces wind resistance, improving fuel economy and contributing to a quieter cabin. The vehicle's bold and distinctive styling is sure to turn heads on the road.

When it comes to maintenance, the 1986 Oldsmobile Firenza with the 166580 engine code is a breeze to work on. The engine's compact size makes it easily accessible for routine maintenance tasks, while the manual transmission requires minimal maintenance compared to automatic transmissions.

In summary, the 1986 Oldsmobile Firenza with the 166580 engine code is a well-engineered vehicle that offers a balance of power, performance, and practicality. Its 4-speed manual transmission provides a direct and engaging driving experience, while its compact and efficient engine delivers impressive fuel economy. Whether you're a seasoned car enthusiast or a first-time buyer, this Firenza is sure to impress.

The Oldsmobile Firenza with the manual transmission and the engine code 4-121, produced in 1986, can be an intriguing used car option for those who appreciate classic vehicles or are in search of an affordable option for daily driving. Let's discuss some potential pros and cons to help you make an informed decision.

1. Affordability: Oldsmobiles from the 1980s, such as the Firenza, are generally more affordable compared to newer models. This makes them an attractive option for those on a tight budget.

2. Manual Transmission: A manual transmission offers more control over the vehicle, allowing for a more engaging driving experience. This can be particularly appealing to enthusiasts and those who enjoy the feeling of being directly connected to their car.

3. Reliability: Oldsmobiles from the 1980s, especially those with the 2.8L V6 engine like the 4-121, are known for their reliability. This engine was used in various Oldsmobile models during this era, and many have clocked high mileages without major issues.

4. Parts Availability: Given the popularity of Oldsmobiles during this era, parts availability is generally good, making repairs and maintenance more accessible.

1. Age and Wear: Older vehicles, like the 1986 Oldsmobile Firenza, may require more frequent maintenance and repairs compared to newer models. This can add up over time and may become a significant cost.

2. Fuel Efficiency: The 2.8L V6 engine in the Firenza is not particularly fuel-efficient. This may not be a concern for those who prioritize performance or enjoy the feeling of a larger engine, but it is something to consider for those looking for a more economical vehicle.

3. Comfort and Modernity: The 1986 Oldsmobile Firenza, being a classic vehicle, may not offer the same level of comfort and modern amenities as newer models. This could include features like climate control, power windows, and advanced safety systems.

4. Depreciation: Older vehicles can depreciate more quickly compared to newer models. This means that the value of the Firenza may decrease over time, which could be a concern for those who plan to sell the vehicle in the future.

In conclusion, the 1986 Oldsmobile Firenza with a manual transmission and the 4-121 engine can be an appealing option for those who prioritize affordability, control, and the classic driving experience. However, it may not be the best choice for those who prioritize fuel efficiency, modern amenities, or the latest technology. Ultimately, the decision to buy this vehicle depends on your personal preferences, budget, and priorities. If you're willing to accept the potential costs and limitations of an older vehicle, the Oldsmobile Firenza could be a rewarding and enjoyable addition to your garage.

Recommendation: Before making a final decision, we recommend conducting a thorough inspection of the vehicle to assess its condition and identify any potential issues. This can include checking the engine, transmission, and brakes, as well as examining the interior and exterior for signs of damage or wear. Additionally, consider obtaining a vehicle history report to learn about the car's past ownership and any previous accidents or repairs. By taking these steps, you'll be better equipped to make an informed decision and potentially avoid any unexpected costs or issues down the line.

Details:

Every part is cleaned, tested and inspected by experts. All parts are covered by warranty. Parts go back into cars rather than landfill. Unless specified as Universal this is a direct fit Manual Transmission Assembly.

Original parts mean a perfect fit. This part fits vehicles made in the following years 1986 ,1987.

part #: 166580 price

• $644.99

specifications complmanu:

• for makes: Oldsmobile
• for years: 1986
• mpn: 166580
• model: Firenza
• color: Grey
• genuine oem: No
• type: Manual Transmission Assembly
• manufacturer warranty: 90 Day
• interchange item code: 400

offer complmanu:

• best offers: True
• quantity: 1
• availability: In Stock
• sold: 0
• started: June 10, 2026
• options: Ship-to-home

shipping complmanu:

• type: Fixed
• cost: $0.00
• service: Flat Rate Freight
• class: Freight

general complmanu:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission

payments complmanu:

• credit card: Discover
• other
• wallet: Paypal

seller complmanu:

• city: Harrison, Michigan
• rating: 99.4%
• # reviews: 4039

returns complmanu:

• paid by: Seller
• time: 60 Days
• policy: Returns Accepted

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