I am posting this primarily for the like-minded SENTOA members who collect mfg/part numbers & sources for the odd bits and pieces of our vessels.  In this case it's the throttle control cable on the Morse MT-3helm controller for an older NT37 with the Cummins 6BTA. SANDPIPER’s helm control cable broke last month at one of the crimped/swagedterminations shortly after an emergency full-reverse when an undetected gray whalesuddenly breached immediately off the bow.  Fortunately, no contact.  After nearly10K engine hours and on its 19th cruise to Alaska, the cable hascertainly provided acceptable service. The good news is that even at idle an NT37 makes 4 knotswith sufficient helm control. And it’s pretty easy to jury-rig a higher idle and even a manual throttle ifnecessary.  Fortunately, conditions weregood and so was the fishing so not all was wasted waiting for a replacementcable to arrive.  And perhaps more fortunate,it wasn’t the marine gear’s shift control cable that broke. This specific Morse helm control cable turns out to be quite common.  I was told it's probably the most readily available replacement control cable in the industry.  Ifound suitable replacement cables in stock in AK, BC and WA locations forless than $50.  The specific 16’ control cableused on these early NT37’s turns out to be a similarly popular length (thank you NT!).  Installation was straightforward and fairly obvious.  Access is good and NT left a generous serviceloop at the helm to remove and work on the Morse controller cassette without impactingthe gear selection cable settings.  This throttle control cable is terminated on both ends witha 10-32 threaded rod.  The locationsof the 10-32 lock-nuts on the original cable terminations were carefully noted inorder to match with those on the new cable.  No significantcable stretch from 2 decades of use was noted when compared side by side.  Turns out actual installed length has some forgiveness as theattachment to these wonderful older analog Cummins 6BTA’s is a spring loaded levermechanism.   So concerns of ending up with some ‘lag’ fromtoo much slack in the installed length, or an inconsistent idle speed from it beinginstalled too tight turned out not to be much of a risk. The original Morse helm control cable was labeled “D32377-003 192.0” where 192 is the length in inches (16’). The Morse MT-3 single-lever top-mount dual-action (combined throttle/gear) helmcontrol is still available but now manufactured by SeaStar Solutions.  Teleflex (also a SeaStar company) is one ofseveral suitable throttle control cable manufacturers, their model/part number for this cable is: TFX CCX633-316 / TFXTREME 3300 Control Cable; part number 032377-003-0192.     And yes, preemptive replacement of the similarly 2 decade oldmarine gear control cable is on the 2019/20 winter maintenance list.  Kelly Britz SANDPIPER, NT37-042 Seattle WA