3-40-1491 Splined Tube Shaft 1.5" Diameter x 16 Splines fits 3.5" Diameter x .083" Wall thickness Tube
3-40-1491 Splined Tube Shaft 1.5" Diameter x 16 Splines fits 3.5" Diameter x .083" Wall thickness Tube
3-40-1491 Splined Tube Shaft 1.5" Diameter x 16 Splines fits 3.5" Diameter x .083" Wall thickness Tube
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3-40-1491 Splined Tube Shaft 1.5" Diameter x 16 Splines fits 3.5" Diameter x .083" Wall thickness Tube

Aftermarket
3-40-1491
In stock
$62.95
The 3-40-1491 Splined Tube Shaft is a heavy-duty driveline component designed for efficient torque transfer and...
$62.95

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3-40-1491 Splined Tube Shaft 1.5" Diameter x 16 Splines fits 3.5" Diameter x .083" Wall thickness Tube

The 3-40-1491 Splined Tube Shaft is a heavy-duty driveline component designed for efficient torque transfer and long-lasting performance. Built with a 1.5-inch spline diameter and 16 splines, it delivers a secure and precise connection for agricultural, industrial, and automotive applications. Designed to fit a 3.5-inch diameter tube with a .083-inch wall thickness, this shaft ensures easy integration into existing driveline assemblies. Manufactured from high-strength steel with a corrosion-resistant finish, it provides excellent durability for demanding conditions.

Upgrade your driveline with the 3-40-1491 Splined Tube Shaft—engineered for strength, precision, and reliability in PTO, agricultural, and automotive systems.

Features and Benefits

  • 1.5" spline diameter with 16 splines for accurate fit and secure power transfer

  • High-strength steel construction ensures durability under heavy loads

  • Precision-machined splines reduce wear and enable smooth torque delivery

  • Corrosion-resistant coating enhances long-term performance

  • Compatible with 3.5" diameter x .083" wall tubes for versatile applications

  • Ideal for agricultural, industrial, and automotive driveline repairs or custom builds

Technical Specifications

Specification Detail
Part Number 3-40-1491
Interchange Part Numbers 135N-40-1491, 3401491, N3-40-1491, P3-40-1491
Brand Aftermarket
Part Type Stub Shaft Spline
Spline Diameter 1.5 in (38.1 mm)
Number of Splines 16
Tubing Diameter & Thickness 3.5 in x .083 in (88.9 mm x 2.108 mm)
Length of Spline (L) 3 in (76.2 mm)
End of Spline to Weld (K) 7.531 in (191.287 mm)
End of Spline to Radius (R) 6.594 in (167.488 mm)
Butt Diameter (B) 3.345 in (85 mm)
Warranty 1 Year

 

What's Included

  • 1 × Splined Tube Shaft (3-40-1491)

REVIEWS

TB

Excellent quality shaft—fit perfectly into my PTO driveline. Smooth power transfer and very durable.

Tom B.

Fresno, CA

★★★★★
GH

Heavy-duty and well-machined. Works perfectly on my agricultural equipment. Highly recommended replacement part.

George H.

Omaha, NE

★★★★★
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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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