GM 521726 Nos Pin Spindle Bolt Kit General

( Brand: Gm ), ( Part Type: Pin Spindle Bolt Motor ), ( Manufacturer Part Number: 521726 ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review GM General Motors Nos Pin Spindle Bolt Kit Pontiac fits KING 57 1956–1957

521726 Nos. GM King Pin Spindle Bolt Kit for 1956 and 1957 Pontiac

If you're restoring or working on a classic Pontiac from the 1956 or 1957 era, you might be in need of genuine GM replacement parts. One such essential component is the King Pin Spindle Bolt Kit, part number 521726.

This kit contains all the necessary bolts required for securing the king pin spindles on the front wheel assemblies of your Pontiac. The king pin spindles are a crucial part of the steering system, and their bolts ensure a reliable connection between the spindles and the steering knuckles.

The 521726 Nos. GM King Pin Spindle Bolt Kit is manufactured to Original Equipment (OE) specifications, ensuring a perfect fit and function. Each bolt is made from high-quality steel, ensuring both strength and durability. They are also heat-treated to improve their resistance to fatigue and stress.

The kit includes a total of 16 bolts: eight long bolts for the top mounting points and eight shorter bolts for the bottom mounting points. The long bolts measure 5 inches in length, while the short bolts measure 2 inches. Each bolt features a hex head for easy installation with standard socket and wrench tools.

The 521726 Nos. GM King Pin Spindle Bolt Kit is an excellent investment for any Pontiac owner aiming for an authentic restoration or maintenance project. By using genuine GM parts, you can maintain the integrity and performance of your classic vehicle.

In summary, the 521726 Nos. GM King Pin Spindle Bolt Kit is a must-have for 1956 and 1957 Pontiac owners seeking to restore or maintain their vehicles with original equipment parts. This kit includes all the necessary bolts for securing the king pin spindles, and they are manufactured to OE specifications for a perfect fit and optimal performance.

Pros and Cons of Buying a 521726 NOS GM King Pin Spindle Bolt Kit for 1956-1957 Pontiac Cars

The 521726 NOS (New Old Stock) GM King Pin Spindle Bolt Kit is a valuable purchase for those restoring or working on 1956-1957 Pontiac models. This kit provides authentic, original replacement parts for critical suspension components. In this article, we'll discuss the pros and cons of buying this product to help you make an informed decision.

1. Authenticity: The 521726 NOS GM King Pin Spindle Bolt Kit offers genuine, original GM parts. This means that the bolts will exactly match the ones that came with your Pontiac when it was new.

2. Improved Performance: Using the correct bolts for your spindle can lead to improved suspension performance. A tighter connection between the spindle and the steering knuckle can result in better handling and a smoother ride.

3. Restoration Projects: For those working on restoration projects, this kit is essential. Original parts can help maintain the value and authenticity of your car.

4. Availability: NOS parts are often harder to find than aftermarket or new alternatives. By purchasing this kit, you can ensure that you have the correct bolts on hand for your project.

1. Cost: Original NOS parts can be more expensive than aftermarket or new alternatives. The 521726 NOS GM King Pin Spindle Bolt Kit may be a significant investment for some.

2. Limited Use: These bolts are specifically for the 1956-1957 Pontiac models. If you have a different make or model, you will need to search for a different kit.

3. Availability and Lead Time: As NOS parts are harder to find, availability can be limited. Additionally, there may be longer lead times for shipping or delivery.

The 521726 NOS GM King Pin Spindle Bolt Kit is a worthwhile investment for those working on 1956-1957 Pontiac models. The benefits of using authentic, original parts can lead to improved performance, better handling, and increased value for restoration projects. While the cost may be higher than aftermarket or new alternatives, the assurance of having the correct parts for your car can be priceless. If you have a 1956-1957 Pontiac and are restoring or working on the suspension, this kit is a must-have.

If you own a 1956-1957 Pontiac and are in the process of restoring or working on the suspension, the 521726 NOS GM King Pin Spindle Bolt Kit is a recommended purchase. The benefits of using original, authentic parts outweigh the potential costs and limited availability. By investing in this kit, you can ensure that your car's suspension is functioning optimally and that your restoration project remains true to the original design.

part # 521726 prices

• $21.24-$648.19

specifications steershun:

• for models: 57, King
• for makes: Pontiac
• for years: 1956-1957
• brand: Gm
• part type: Pin Spindle Bolt Motor
• manufacturer part number: 521726
• vintage part: Yes
• country of origin: United States

shipping steershun:

• service: USPS Ground Advantage, USPS Priority Mail
• transit: 5-11 Days
• cost: $15.90
• type: Calculated
• class: Standard, Expedited
• carrier: USPS

payments steershun:

• other
• wallet: Paypal
• credit card: Visa

returns steershun:

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

general steershun:

• Car Truck Parts Accessories > Steering Suspension > Other Steering Suspension Parts
• condition: New

seller steershun:

• # reviews: 4357
• rating: 99.6%

offer steershun:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• best offers: True
• started: December 6, 2025
• sold: 0

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