Borgeson 313400 | Steering Coupling Assembly

Part Number
Steering Coupler; Steel; 3/4 in. -36 Spline X 3/4 in. Smooth Bore
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Using a 2" straight extension, called a coupler, to extend the steering box, R&P shaft or the column shaft, can sometimes eliminate a universal joint. The coupler can be welded or pinned to the un-splined end of a shaft. The 1"- 48 and 1" DD couplers have a 1-1?4" hole that will accept either an adapter to reduce inside diameter to 3/4" smooth or another splined or 3/4" DD coupler. The coupler assembly would have to be pinned and/or welded together. Welding the coupler is acceptable because there are no moving parts to damage, and the coupler's steel is less susceptible to heat damage from welding. Couplers are available in the same spline and Double D sizes as our universal joints. Couplers and adapters are available in steel and stainless steel only.

BRAND: Borgeson


  • Steel steering coupler. Fits 3/4in.-36 Spline X 3/4in. Smooth bore.
  • Steering Coupler.
  • Steering Coupler
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  • Steering Coupler; Steel; 3/4-36 X 3/4 Smooth Bore
  • Borgeson Straight Steel Coupler


ColorNatural Steel
End 1 Connector GenderFemale
End 1 Diameter36.000 in.
End 2 Connector GenderFemale
Length2.000 in.
Shaft End 10.750 in. 36-spline
Shaft End 20.750 in. without splines
TitleBorgeson - Steering Coupler - P/N: 313400 - Steel steering coupler. Fits 3/4 in.-36 Spline X 3/4 in. Smooth bore.
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: This product can expose you to chemicals including Nickel and Chromium (hexavalent compounds) which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information visit:




  • Flaming River: FR1941
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