MACK 17QL421M5 Tie Rod 25160538 67

( Manufacturer Part Number: 17QL421M5 ), ( Part Type: Tie Rod )

Review MACK Tie Rod 67 Inch

The **Mack Trucks Part Number 17QL421M5 (25160538) Tie Rod** is a precision-engineered component designed specifically for the heavy-duty suspension systems of Mack trucks, particularly models equipped with the **67-series steering axle**. This tie rod serves as a critical linkage in the steering mechanism, ensuring smooth, responsive, and accurate directional control under the demanding conditions of commercial trucking, long-haul freight, and heavy-duty towing applications. Crafted from high-grade, heat-treated steel, this tie rod is built to withstand extreme loads, repetitive stress cycles, and the harsh environments encountered on highways, construction sites, and off-road terrain. Its robust construction features a **ball-and-socket joint** at one end, allowing for flexible articulation while maintaining structural integrity, while the opposite end is equipped with a **threaded connection** that securely fastens to the steering knuckle or drag link assembly. The tie rod s design incorporates precision-machined threads and a protective coating to prevent corrosion, ensuring longevity even in exposure to moisture, road salt, and abrasive debris. This part is engineered to meet or exceed OEM specifications, guaranteeing compatibility with the truck s existing steering geometry and alignment systems. Whether installed in a **Mack Granite, Granite X, or Pinnacle** model, this tie rod plays a vital role in maintaining vehicle stability, reducing wear on other suspension components, and enhancing overall handling performance. For fleet operators and independent mechanics, sourcing an authentic Mack part like this tie rod ensures reliability, reduces downtime, and upholds the truck s performance standards making it an indispensable component for maintaining the safety and efficiency of Mack s heavy-duty chassis.

### **Pros and Cons of buying a Mack 17QL421M5 (25160538) Tie Rod (67 Series)**

1. **OEM Compatibility** This is an original equipment manufacturer (OEM) part designed specifically for the Mack 67 series truck, ensuring a perfect fit and reliable performance without modifications.

2. **Durability** Mack trucks are built for heavy-duty applications, and the tie rod is engineered to withstand high loads, frequent use, and harsh conditions, reducing the risk of premature failure.

3. **Reliability** As a genuine Mack part, it is manufactured to the same high standards as the original component, minimizing the likelihood of early wear or failure compared to aftermarket alternatives.

4. **Warranty Coverage** Purchasing from an authorized dealer or Mack-approved supplier may include warranty protection, offering peace of mind against defects or premature failure.

5. **Compatibility with Safety Systems** The tie rod integrates seamlessly with the truck s steering and suspension systems, ensuring proper alignment and safe operation, which is critical for large commercial vehicles.

6. **Long-Term Cost Efficiency** While the upfront cost may be higher than some aftermarket parts, the longevity and reduced risk of frequent replacements can make it more cost-effective over time.

7. **Resale Value** Keeping the truck with original or high-quality OEM parts can help maintain its resale value, as buyers often prefer vehicles with minimal aftermarket modifications.

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1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives, which can be a significant upfront investment, especially for fleet operators or individual owners on a tight budget.

2. **Limited Availability** Depending on the region or dealer network, finding the exact part (especially for older models like the 67 series) may require ordering from specialized suppliers, potentially increasing lead times.

3. **Longer Lead Times** Mack parts, even OEM, may not be stocked at every dealer, leading to delays in receiving the part, which can disrupt maintenance schedules or downtime for the vehicle.

4. **Potential Overkill for Some Uses** If the truck is used in very light-duty applications (e.g., occasional towing rather than heavy hauling), the robust build of the OEM tie rod may be unnecessary, making it a less cost-effective choice.

5. **No Customization Options** Unlike aftermarket parts, OEM tie rods do not offer modifications such as reinforced materials or alternative finishes, which some operators might prefer for specific performance needs.

6. **Depreciation Risk** If the truck is older, the value of the OEM part may not appreciate, and replacing it with a newer model might eventually be more economical, though this depends on the truck s overall condition and usage.

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The **Mack 17QL421M5 (25160538) tie rod for the 67 series** is a high-quality, reliable OEM part that excels in durability, compatibility, and long-term performance. It is ideal for operators who prioritize safety, longevity, and the integrity of their vehicle s original specifications. However, the higher cost and potential lead times may be drawbacks for those on a tight budget or needing immediate replacement.

For **fleet managers, long-haul operators, or owners who prioritize reliability over cost savings**, this part is strongly recommended. For **individuals with older trucks, light-duty use, or budget constraints**, evaluating aftermarket alternatives (while ensuring they meet Mack s specifications) could be a more practical choice. Always verify the part s compatibility with your specific truck model and consult with a Mack-certified technician before purchasing.

If the truck is in heavy service, the tie rod s superior build and warranty benefits justify the investment. For less demanding applications, weigh the cost against potential aftermarket options but never compromise on quality if the part is critical to the truck s safety and performance. Always source from authorized Mack dealers or reputable suppliers to avoid counterfeit or substandard parts.

Details:

Tie Rod 67 is used and in good condition, not original packaging. Items are shipped using USPS, UPS, and FedEx. All parts are in stock and ready to ship. Pictures: Thumbnails.

If the original package is included it may show signs of wear. Mack 17QL421M5, 25160538 Tie Rod 67. Shows signs of shelf wear.

part #: 17ql421m5 prices

• $115.99-$121.25

specifications tirolik:

• for makes: Mack
• mpn: 17ql421m5
• part type: Tie Rod

offer tirolik:

• quantity: 2
• availability: In Stock
• started: February 27, 2026
• options: Ship-to-home
• best offers: True
• sold: 0

general tirolik:

• Car Truck Parts Accessories > Steering Suspension > Tie Rods Steering Linkages
• condition: Used

payments tirolik:

• other
• wallet: Paypal
• credit card: Discover

seller tirolik:

• city: Ashaway, Rhode Island
• rating: 99.9%
• # reviews: 128465

shipping tirolik:

• type: Fixed
• service: Standard
• cost: $0.00
• class: Standard
• transit: 4-8 Days

returns tirolik:

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

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