814119-1S – Short Couple Driveshaft – 1610 (1.875 x 5.312) Series – 12.000″ Cl To Cl

814119-1S Short Couple Driveshaft — 1610 Series, 12.000" CL to CL

The 814119-1S is a 1610 Series short-couple driveshaft assembly with a centerline-to-centerline U-joint dimension of 12.000". This is the longest CL-to-CL measurement in the 1610 Series short-couple lineup catalogued here, covering applications where the tandem axle spread or interaxle distance requires a substantially longer intermediate shaft. The 1610 Series uses 1.875" cap diameter U-joints with a 5.312" cross width. The flange-to-flange dimension is not specified for this assembly — selection is based on the CL-to-CL measurement. Factory balanced prior to shipment.

At 12.000" CL-to-CL, the 814119-1S is approximately 6.620" longer than the 906256-4 (6.120" CL-to-CL) and represents a distinctly different application range — longer tandem axle spacings found on certain heavy-duty bus, transit, or specialized vocational chassis where 52" or 54" tandem spreads require a correspondingly longer interaxle shaft. The "S" suffix in 814119-1S is a variant designation distinguishing this assembly from the base 814119-1 in length, configuration, or yoke type. Verify the CL-to-CL measurement is precisely 12.000" rather than a nearby value before ordering.

Specifications

• Part Number: 814119-1S
• Series: 1610 (1.875" cap x 5.312" width)
• CL to CL: 12.000"
• Flange to Flange: Not specified
• Application: Medium/heavy-duty commercial truck, long-span interaxle shaft, flanged short-couple application

Fitment & Installation Notes

Measure the CL-to-CL distance in the vehicle or from the removed shaft before ordering the 814119-1S. At 12.000", this assembly covers interaxle spans considerably longer than the typical short-couple range — confirm that a short-couple assembly (fixed length, no slip range) is the correct design for this application versus a conventional driveshaft with a slip yoke. If the application requires any axle movement accommodation, a conventional driveshaft configuration is more appropriate. The 1610 Series companion flange bolt circle, pilot diameter, and bolt torque specification must be verified from the vehicle or axle OEM documentation.

The 1610 Series is appropriate for Class 6 trucks and certain Class 7 vocational vehicles. At a 12.000" CL-to-CL, the 814119-1S is likely applied on transit buses, heavy-duty coach chassis, and specialized multi-axle vehicles where 1610 Series torque capacity is sufficient but a longer interaxle span requires a shaft of this length. The 1610 Series U-joint (1.875" cap) must not be substituted with 1710 Series components — the yoke bore dimensions are series-specific. Factory balancing on the 814119-1S is essential given the longer span, as imbalance effects scale with length and operating speed.

The 814119-1S is the longest CL-to-CL configuration in the 1610 Series short-couple assemblies listed in this catalog. Cross-reference the 12.000" CL-to-CL against the vehicle specification drawing or the removed shaft measurement to confirm selection. The "S" suffix must be included when ordering — the base 814119-1 has a different dimension. Explore related Short Couple Driveshaft assemblies including shorter 1610 Series variants (906256 family, 906224 family) and 1710 Series configurations for higher-torque applications at similar span lengths.