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
Technical Data
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
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Precision-Machined Fit – 1.375" diameter with 16 splines ensures exact compatibility.
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High-Strength Steel Build – Provides maximum durability under heavy loads.
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Efficient Torque Transfer – Minimizes backlash and delivers smoother operation.
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Corrosion-Resistant Finish – Protects against wear in harsh environments.
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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
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1 x Splined Stub Shaft 1.375" x 16 Splines – N2-40-1221
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Manufacturer’s 1-Year Warranty
REVIEWS
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
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
Specifications
Fitment Data
• Engineered for precision compatibility with high-performance builds.
• Tested under extreme mechanical stress for guaranteed structural integrity.
Use the Riot Vehicle Finder to verify exact sub-model compatibility.
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