6.5-4-1891-1 End Yoke | Jack Shaft Yoke for Pinion Shaft End | 1810 Series

The 6.5-4-1891-1 End Yoke, part of the 1810 Series, is engineered for heavy-duty driveline performance where strength, precision, and durability are essential. Designed for use in demanding industrial, trucking, agriculture, and off-road applications, this yoke provides a secure splined interface and reliable torque transfer under load.

Its robust steel construction and accurate spline machining ensure long service life and dependable operation in high-stress driveline systems.

Specifications

• Part Number: 6.5-4-1891-1

• Series: 1810

• Spline Count: 16

• Spline Major Diameter: 2.350″

• Hub Diameter (R): 2.875″

• Length Thru Hole (Q): 2.750″

• Centerline to End of Hub (S): 5.500″

• Bearing Dimension (D): 1.938″

• Outside Yoke Dimension (E): ~7.64″ (varies slightly by source)

• Design: HR (Half-Round Strap Style)

• Joint Angle Rating: 30°

• Weight: Approx. 16.8 lbs

Key Features

• Heavy-Duty Construction
  Built from high-strength steel to withstand high torque loads and harsh operating conditions.

• Precision Splined Fit
  The 16-spline configuration ensures a secure, accurate connection to compatible jackshafts or pinion shafts.

• Efficient Power Transfer
  Designed to maintain smooth rotational motion with minimal vibration or imbalance.

• Reliable Performance in Demanding Environments
  Suitable for commercial trucks, off-road machinery, agricultural equipment, industrial driveline assemblies, and other heavy-use applications.

• Consistent Quality Standards
  Manufactured to meet stringent dimensional accuracy requirements for dependable long-term operation.

The 6.5-4-1891-1 End Yoke is ideal for driveline systems requiring a strong, reliable spline-type connection within the 1810 Series. Its balanced design, clean machining, and durable half-round strap configuration make it an excellent choice for repairs, upgrades, or new driveline builds where dependable torque transmission and long life are priorities.

• Spicer 6.5-4-1891-1
• Daimler: SP 6.5 4 1891 1
• Daimler: SP 6.5 4 1891 1HP
• Dana Commercial Vehicle Service Parts: 181MU51P14
• Dana Commercial Vehicle Service Parts: 2104-65418911
• Dana Commercial Vehicle Service Parts: 6.5-4-1891-1SB
• Freightliner Trucks: SP 6.5 4 1891 1
• Freightliner Trucks: SP 6.5 4 1891 1HP
• International Harvester (IHC): 65418911
• International Harvester (IHC): D65418911
• International Harvester (IHC): E65418911
• International Harvester (IHC): SB65418911
• International Harvester (IHC): SD65418911
• Mack: 25633255
• Mack: 181MU51P14
• Mack: 2104-65418911
• McNeilus: 1427898
• Meritor: 18N418911
• Navistar: 65418911
• Navistar: D65418911
• Navistar: DS65418911
• Navistar: E65418911
• Navistar: SB65418911
• Navistar: SD65418911
• Neapco: N6.5-4-1891-1
• Paccar Parts: 6.5-4-1891-1
• Peterbilt: 1427898
• Rockwell International: 18N-4-1891-1
• Rockwell International: 18N-4-2781-1
• UAP: 6.5-4-1891-1
• Volvo Cars: 181MU51P14
• Volvo Cars: 2104-65418911
• Volvo Cars: SHP65418911
• Volvo Cars: SP 65418911
• 6.5418911
• 65-4-1891-1
• P6.5-4-1891-1

Shipping policy

Effective Date: 06-01-2024

Thank you for shopping with DrivelinePro. We strive to ensure that your order is processed and delivered promptly. Below are the details of our shipping policy:

1. Processing Time

• Orders are processed within 1-2 business days (Monday-Friday) after receiving your order confirmation email. You will receive another notification when your order has shipped.

2. Shipping Rates and Delivery Estimates

• Shipping charges and delivery times for your order will be calculated and displayed at checkout by the carrier based on your location and chosen shipping method.

3. Shipment to P.O. Boxes or APO/FPO Addresses

• DrivelinePro ships to addresses within the U.S., U.S. Territories, and APO/FPO/DPO addresses. Please note that certain restrictions may apply.

4. International Shipping

• Currently, we do not offer international shipping outside of the United States.

5. Shipment Confirmation and Order Tracking

• You will receive a shipment confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

6. Customs, Duties, and Taxes

• DrivelinePro is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).

7. Damages

• DrivelinePro is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier directly to file a claim. Please save all packaging materials and damaged goods before filing a claim.

8. Missing or Lost Packages

• If you suspect your order is lost or missing, please Contact Us with your order number and details of your order. We will work with the carrier to investigate and resolve the issue.

9. Returns

• For information about returns, please see our Returns Policy or contact Customer Support.

Contact Information For any additional questions or concerns regarding shipping, please Contact Us.

DrivelinePro
14955 Limonite Ave.,
Eastvale, CA 92880

Business Hours: Monday to Friday: 9 AM - 4 PM (PST)

Thank you for shopping with DrivelinePro!