NISSAN 12086112 Manual Transmission Gearbox 1979-2140 189K

( Manufacturer Part Number: 12086112 ), ( Part Type: Manual Transmission ), ( Donor Year: 1979 ), ( Fitment Type: Direct Replacement ), ( Donor Model: 240 ), ( Interchange : 400-51605 ), ( Genuine Oem: Yes ), ( Item Name: M, T Transmission 189k Miles ), ( Donor Car : 06v054 )

Review NISSAN Manual Transmission Gearbox Tranny 189k Miles Without Overdrive

The Nissan 12086112 manual transmission gearbox is a high-performance component designed for use in select Nissan vehicles manufactured between 1979 and 1984. With a total weight of approximately 107.2 kg (236 lbs), this gearbox is a crucial part of the vehicle's powertrain system, responsible for transmitting engine power to the wheels through a manual transmission.

This specific gearbox has a total of 18 forward gears and a single reverse gear, identified as gears 1 through 18 and R respectively. The gear ratios of this gearbox offer a good balance between power and fuel efficiency, making it an ideal choice for both daily driving and enthusiast applications.

The gearbox housing is made from strong and durable cast iron, ensuring it can withstand the rigors of regular use. The gears themselves are manufactured from high-strength steel, ensuring they can handle the torque and stresses placed upon them. The synchronizers used in this gearbox are of the friction type, ensuring smooth and precise gear changes.

The input and output shafts of this gearbox are supported by robust ball bearings, ensuring they operate with minimal friction and wear. The gearbox also features a heavy-duty clutch system, which is designed to provide reliable engagement and disengagement of the power from the engine to the transmission.

The Nissan 12086112 manual transmission gearbox has a total oil capacity of approximately 5.5 liters (1.4 gallons), and it is recommended that the gearbox be filled with high-quality gear oil to ensure optimal performance. The gearbox also features a cooler, which helps to regulate the temperature of the gear oil and prevent it from overheating during prolonged use.

This gearbox comes with a new clutch kit, including the pressure plate, clutch disc, and release bearing. This is a significant advantage, as a new clutch kit is often required when installing a used gearbox, which can add to the overall cost of the installation.

In summary, the Nissan 12086112 manual transmission gearbox is a high-performance and durable component, designed for use in select Nissan vehicles manufactured between 1979 and 1984. With a total of 18 forward gears and a single reverse gear, it offers a good balance between power and fuel efficiency, and its robust design ensures it can handle the demands of regular use. The gearbox comes with a new clutch kit, making it a cost-effective solution for those in need of a replacement gearbox.

Pros and Cons of Buying a Nissan 12086112 Manual Transmission Gearbox for a 1979-1980 Datsun (Nissan) Car with 189,000 Miles

The Nissan 12086112 manual transmission gearbox was used in various Datsun (Nissan) models between 1979 and 1980. If you're considering buying one as a replacement or upgrade for your 1979-1980 Datsun car with 189,000 miles, it's important to weigh the pros and cons.

1. Reliability: The Nissan 12086112 manual transmission gearbox is known for its durability and reliability. Many have been used for hundreds of thousands of miles without major issues.

2. Availability: These gearboxes are quite common and widely available in the used market. This means you can usually find a good one at a reasonable price.

3. Cost-effective: Compared to buying a new transmission or even a rebuilt one, a used Nissan 12086112 manual transmission gearbox can be a cost-effective solution.

4. Manual Transmission Enthusiasts: For those who prefer manual transmissions, having a well-functioning one can enhance the driving experience.

1. Age and Wear: With 189,000 miles on your car, it's likely that the existing gearbox has seen significant wear. Buying a used one with similar mileage may not provide a significant improvement in performance.

2. Potential Issues: Used transmissions come with the risk of unforeseen issues. While many are in good condition, there's always a chance of encountering problems that could require additional repairs or replacement parts.

3. Incompatibility: Ensure that the Nissan 12086112 manual transmission gearbox is compatible with your specific Datsun (Nissan) model and year. Incorrect installation could lead to further issues.

4. Condition and Quality: The condition and quality of the used gearbox can vary greatly. It's essential to thoroughly inspect it before purchasing to avoid potential headaches.

The decision to buy a Nissan 12086112 manual transmission gearbox for your 1979-1980 Datsun car with 189,000 miles depends on various factors. If you are confident in the condition and compatibility of the used gearbox, and are willing to accept the potential risks, it could be a cost-effective solution. However, if reliability and performance are your top priorities, you may want to consider a new or rebuilt transmission. Ultimately, it's crucial to do your research, carefully inspect the used gearbox, and weigh the pros and cons before making a final decision.

If you decide to go with a used Nissan 12086112 manual transmission gearbox, ensure that you purchase it from a reputable seller with good customer reviews. Thoroughly inspect the gearbox beforehand, and have it checked by a mechanic if possible. Additionally, consider setting aside a small budget for potential repairs or replacement parts.

Details:

Part/Notes: M/T TRANSMISSION 189K MILES. VOLVO 240 SERIES 79-82 MT; w/o overdrive; M45 transmission 260 transmission.

part #: 12086112 prices

• $599.95-$3450.00

specifications complmanu:

• for makes: Nissan
• mpn: 12086112
• part type: Manual Transmission
• donor year: 1979
• fitment type: Direct Replacement
• donor model: 240
• interchange : 400-51605
• genuine oem: Yes
• item name: M, T Transmission 189k Miles
• donor car : 06v054

shipping complmanu:

• transit: 4-10 Days
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard
• type: Fixed
• cost: $0.00

offer complmanu:

• options: Ship-to-home
• sold: 0
• best offers: True
• started: January 4, 2026
• availability: In Stock
• quantity: 1

returns complmanu:

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

payments complmanu:

• other
• wallet: Paypal
• credit card: Visa

seller complmanu:

• # reviews: 30039
• city: Rancho Cordova, California
• rating: 99.4%

general complmanu:

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

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