N2-40-1221 Splined Stub Shaft 1.375 in Diameter x 16 Splines fits 3.0 in Diameter x 0.065 in Wall Thickness Tube
N2-40-1221 Splined Stub Shaft 1.375 in Diameter x 16 Splines fits 3.0 in Diameter x 0.065 in Wall Thickness Tube
N2-40-1221 Splined Stub Shaft 1.375 in Diameter x 16 Splines fits 3.0 in Diameter x 0.065 in Wall Thickness Tube
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N2-40-1221 Splined Stub Shaft 1.375 in Diameter x 16 Splines fits 3.0 in Diameter x 0.065 in Wall Thickness Tube

Aftermarket
2-40-1221
In stock
$46.95
The Splined Stub Shaft 1.375" x 16 Splines N2-40-1221 is a precision-engineered driveline component designed to...
$46.95

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N2-40-1221 Splined Stub Shaft 1.375 in Diameter x 16 Splines fits 3.0 in Diameter x 0.065 in Wall Thickness Tube

The Splined Stub Shaft 1.375" x 16 Splines N2-40-1221 is a precision-engineered driveline component designed to provide reliable performance across automotive, agricultural, and industrial applications. Built for use with a 3.0" x .065" tube, this stub shaft ensures a secure connection and efficient torque transfer.

Crafted from high-strength steel and finished with a corrosion-resistant coating, the N2-40-1221 Splined Stub Shaft is built to withstand demanding environments without compromising durability. Its 16-spline configuration provides a snug, vibration-free fit, ensuring smoother operation and reduced wear on your driveline system.

Whether you’re upgrading an agricultural rig, maintaining heavy-duty equipment, or fabricating a custom driveline, the N2-40-1221 Stub Shaft delivers dependable strength and precision. Compatible with Neapco, Spicer, and Meritor systems, it’s a trusted choice for professionals who rely on long-lasting performance.

Built Strong for Hardworking Drivelines
The N2-40-1221 Splined Stub Shaft keeps your equipment running smoothly with its precise fit, heavy-duty strength, and resistance to harsh conditions.

Features and Benefits

  • Precision-Machined Fit – 1.375" diameter with 16 splines ensures exact compatibility.

  • High-Strength Steel Build – Provides maximum durability under heavy loads.

  • Efficient Torque Transfer – Minimizes backlash and delivers smoother operation.

  • Corrosion-Resistant Finish – Protects against wear in harsh environments.

  • Easy Installation – Engineered for straightforward and secure fitment.

Technical Specifications

Specification Details
Condition New – Unused, unopened, undamaged
Brand Aftermarket
Part Type Splined Stub Shaft
MPN 2-40-1221
Spline Diameter 1.375 in (34.925 mm)
Number of Splines 16
Tubing Diameter & Wall Thickness 3.000 in x .065 in (76.2 mm x 1.651 mm)
End of Spline to Weld (K) 6.438 in (163.525 mm)
Length of Spline (L) 2.250 in (57.15 mm)
End of Spline to Radius (R) 5.625 in (142.875 mm)
Butt Diameter (B) 2.881 in (73.177 mm)
Warranty 1 Year
Custom Bundle No
Modified Item No
Interchange Part Numbers N2-40-1221
Compatible Equipment Types Automotive, Industrial, Agricultural, Truck, SUV
Compatible Equipment Make Neapco, Spicer, Meritor

 

Vehicle Compatibility

Make Applications
Neapco Automotive, industrial, and driveline systems
Spicer Agricultural, heavy-duty, and industrial applications
Meritor Truck, SUV, and off-highway driveline assemblies

 

What’s Included

  • 1 x Splined Stub Shaft 1.375" x 16 Splines – N2-40-1221

  • Manufacturer’s 1-Year Warranty

REVIEWS

JG

Exactly what I needed for my Spicer driveline repair. The fit was perfect and the steel quality is top-notch. Been running it for months with no issues.

Jason G.

Tulsa, OK

★★★★★
MT

Great stub shaft for my farm equipment. Easy install, heavy-duty construction, and it handles daily use without a problem. Would definitely buy again.

Michael T.

Des Moines, IA

★★★★★
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Effective Date: October 2024
We offer a 30-day return policy, allowing you to request a return within 30 days of receiving your item. To qualify for a return, the item must be in its original condition—unused, with tags, and in its original packaging. A receipt or proof of purchase is also required.

To initiate a return, please contact us at info@riotparts.com. Returns must be shipped to the address provided upon request. If your return is approved, we will issue a return shipping label along with detailed instructions.

Important
Returns sent without prior authorization will not be accepted.

For any return-related inquiries, please reach out to us at info@riotparts.com.

Return Shipping Address
The return shipping address will be determined based on the requestor’s location to ensure the nearest return facility is used.

Possible return locations include:
10880 Lear Blvd.
Reno, NV 89506, United States
931 W. Bardin Rd., Suite 150–200
Arlington, TX 76017, United States
3035 Campus Dr.
Hatfield, PA 19440, United States
5789 N. Graham Road, Ste 200
Whiteland, IN 46184, United States
2020 NE Aloclek Dr 4711 N Lamon Ave
#118 STE 12, Hillsboro, OR 97124, United States

Damages and Issues
We recommend inspecting your order upon receipt. If you find that an item is defective, damaged, or if you received the wrong item, please contact us immediately so we can address the issue.

Exceptions / Non-Returnable Items
Certain items cannot be returned, including:
• Electrical parts that have been installed or used
• Special order parts that were custom ordered for you
• Items that have been damaged due to improper installation or use

If you have questions or concerns about a specific item, please contact us for assistance.

Exchanges
For exchanges, the quickest option is to return the item you have. Once the return is accepted, you can make a separate purchase for the new item.

Refunds
We will notify you once we receive and inspect your return to inform you whether your refund is approved. If approved, you will be automatically refunded using your original payment method within 10 business days. Please be aware that it may take additional time for your bank or credit card company to process and post the refund.

If more than 15 business days have passed since your return was approved and you haven’t received your refund, please contact us at info@riotparts.com.

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