GM 591455 Nos Transmission Gear Shifter Interlock 4-SPEED

( Brand: Gm ), ( Manufacturer Part Number: 591455 ), ( Type: Chevy Gmc ), ( Oe/oem Part Number: 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 )

Review GM New Nos Transmission Gear Shifter Interlock 4-speed Chevrolet Truck

GM 591455 Transmission Gear Shifter Interlock for 4-Speed Chevrolet

The GM 591455 Transmission Gear Shifter Interlock is a crucial component designed for use in 4-speed Chevrolet vehicles. This interlock system plays a vital role in ensuring the safe and effective operation of the transmission by preventing the vehicle from being shifted out of park without the proper application of the brake pedal.

This part is meticulously engineered to fit seamlessly into the existing transmission system of your Chevrolet vehicle. It is manufactured using high-quality materials to ensure durability and reliability, with a robust design that can withstand the rigors of regular use.

The GM 591455 Transmission Gear Shifter Interlock features a simple yet effective design. When the vehicle is in park, the interlock prevents the shifter from being moved out of park position. However, when the brake pedal is depressed, the interlock mechanism is disengaged, allowing the shifter to be moved into the desired gear position.

Installation of the GM 591455 Transmission Gear Shifter Interlock is a relatively straightforward process. It can be installed in under an hour with the right tools and some basic mechanical knowledge. The interlock comes with clear and concise instructions, making the installation process as hassle-free as possible.

In summary, the GM 591455 Transmission Gear Shifter Interlock is an essential component for ensuring the safe and effective operation of the transmission in your 4-speed Chevrolet vehicle. Its robust design, simple installation process, and reliable performance make it an indispensable addition to your vehicle's transmission system.

Pros and Cons of Buying a GM 591455 NOS Transmission Gear Shifter Interlock for a 4-Speed Chevrolet

The GM 591455 NOS Transmission Gear Shifter Interlock is a replacement part designed for use in Chevrolet vehicles with 4-speed manual transmissions. This component prevents the shifter from being moved out of park without the brake pedal being pressed, ensuring safety. Let's examine the potential advantages and disadvantages of purchasing this part.

1. Enhanced Safety: The primary function of a gear shifter interlock is to prevent the vehicle from being shifted out of park without the brake pedal being engaged, reducing the risk of accidental vehicle movement.

2. OEM Quality: This part is a direct replacement from General Motors, ensuring a proper fit, finish, and function.

3. Long-Term Savings: Investing in a high-quality OEM part can save money in the long run by avoiding the need for multiple repairs or replacements of lower-quality aftermarket parts.

1. Cost: Original equipment manufacturer (OEM) parts can be more expensive than aftermarket alternatives due to their authenticity and brand reputation.

2. Availability: OEM parts may not always be readily available at local auto parts stores, requiring the purchaser to order from the manufacturer or an authorized dealer.

3. Installation Complexity: Depending on the skill level of the installer, replacing the gear shifter interlock could require additional time and labor costs.

When considering the purchase of a GM 591455 NOS Transmission Gear Shifter Interlock for a 4-Speed Chevrolet, it is essential to weigh the advantages of OEM quality and enhanced safety against the potential disadvantages of cost and availability. Ultimately, for those who prioritize the peace of mind that comes with using genuine GM parts, the investment may be worthwhile. For others, carefully considering aftermarket alternatives or seeking professional advice may lead to a more cost-effective solution.

Before making a final decision, it is recommended to research various sources for pricing and availability, consult with a trusted mechanic or auto parts professional, and carefully evaluate the specific needs and priorities of the vehicle and its owner.

Details:

New NOS GM interlock, part number 591455. See pics for condition. Please verify part number and pics match your application. Has some surface rust.

Part is dusty/dirty and shows some patina from handling sitting on the shelf.

part #: 591455 prices

• $30.00-$261.85

specifications manutransmission:

• for makes: Chevrolet
• brand: Gm
• mpn: 591455
• type: Chevy Gmc
• oe/oem part number: 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960

seller manutransmission:

• rating: 100.0%
• city: Sheboygan Falls, Wisconsin
• # reviews: 31849

offer manutransmission:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: November 4, 2025
• sold: 0
• quantity: 1

payments manutransmission:

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

shipping manutransmission:

• cost: $0.00
• transit: 2-6 Days
• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• carrier: USPS

general manutransmission:

• condition: New other see details
• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts

returns manutransmission:

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

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