SPICER 43749 Spindle Nut

( Brand: Spicer ), ( Part Type: Spindle ), ( Manufacturer Part Number: 43749 )

Review SPICER Genuine Spindle Nut

The SPICER Part Number 43749 is a critical component in the suspension system of heavy-duty vehicles. This spindle nut, specifically engineered for commercial applications, is designed to provide superior strength and durability.

This nut is manufactured from high-strength steel, ensuring it can withstand the rigors of heavy-duty use. Its surface is treated with a corrosion-resistant coating, which helps protect it against the elements and extends its service life.

The SPICER 43749 spindle nut features a hexagonal shape with 12 points, providing a large contact area for improved torque transfer. Its tapered design allows for easy installation and removal, even in confined spaces. The nut also comes with an integral washer to ensure a flat seating surface and prevent any potential leaks.

This nut is designed to fit and function with original equipment manufacturer (OEM) spindles and is interchangeable with other brands' equivalent parts. Its precise dimensions and tolerances ensure a perfect fit and reliable performance.

The SPICER 43749 spindle nut is an essential replacement part for commercial vehicles, construction equipment, and other heavy-duty applications. Its superior strength, durability, and ease of installation make it an ideal choice for those seeking reliable and long-lasting suspension components.

The Spicer 43749 spindle nut is a crucial component in the Dana 60 and Dana 70 axles, which are commonly used in heavy-duty vehicles and off-road applications. This part ensures the proper connection between the spindle and the axle housing. Let's discuss some pros and cons of buying this spindle nut.

1. Durability: The Spicer 43749 spindle nut is manufactured using high-quality materials, enabling it to withstand the stresses and loads placed on the axle in heavy-duty use.

2. OEM Quality: This part is an original equipment manufacturer (OEM) replacement, meaning it is specifically designed and engineered to meet the performance and fitment requirements of your vehicle.

3. Reliability: As an OEM part, you can trust that the Spicer 43749 spindle nut will function as intended, providing a secure connection between the spindle and axle housing.

4. Prevents Axle Damage: A properly tightened spindle nut ensures the spindle remains secure within the axle housing, preventing potential damage from excessive play or movement.

1. Cost: The Spicer 43749 spindle nut is a premium part, and its price may be higher than aftermarket alternatives. However, the investment in OEM quality may save you money in the long run by preventing unnecessary repairs or replacements.

2. Availability: Depending on your location and the specific axle application, it may be challenging to find a local supplier that carries the Spicer 43749 spindle nut in stock. In such cases, you may need to order it online or from a distributor.

3. Installation: Installing a spindle nut requires specialized tools and knowledge, making it a job better suited for professional mechanics or experienced DIYers.

In conclusion, while the Spicer 43749 spindle nut comes with a higher price tag, its durability, reliability, and OEM quality make it a worthwhile investment for heavy-duty and off-road applications. If you value the peace of mind that comes with using genuine OEM parts, this spindle nut is a solid choice. However, if cost is a primary concern, you may want to consider aftermarket alternatives. Ultimately, the decision to purchase the Spicer 43749 spindle nut depends on your specific requirements, budget, and expertise.

part # 43749 price

• $18.47

specifications steershun:

• brand: Spicer
• part type: Spindle
• manufacturer part number: 43749

seller steershun:

• rating: 100.0%
• # reviews: 227

shipping steershun:

• service: Standard
• transit: 5-12 Days
• class: Standard
• type: Fixed
• cost: $9.99

payments steershun:

• other
• credit card: Mastercard
• wallet: Paypal

offer steershun:

• started: August 25, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0

general steershun:

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

returns steershun:

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

Spicer 43749 Is Similar To:

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• Dana Spicer 10086724 Axle Spindle-fsgr (54.3% similar) $173.22–$496.87. (March 14th, 2026)
• Dana Spicer 101hm110-1x Steering Knuckle Bolt 1.5 Inch Length With Nut (33.3% similar) $22.52–$32.99. (May 3rd, 2026)