Is there a Kenwood s51-4401-05 drop in replacement?
Emily Sparks
Published Mar 27, 2026
Is there a Kenwood s51-4401-05 drop in replacement?
Kenwood Part# S51-4401-05 was discontinued many years ago. Here is a pin-for-pin drop-in replacement that will cure that intermittent ALC and slow comeback receive you may start to experience. See how to locate, diagnose, and test your relay, here on the RL-1 Page.
What are the pins on a Kenwood remote plug?
These are the original, last remaining stock of the Kenwood 9-pin connectors. The back cover threads onto the pin carrier, which features easy-to-solder solder cups. For use as a Remote plug, pins 8 and 9 must be jumpered.
What are the replacement parts for Kenwood k4eaa?
Kenwood Parts has replacements for $38.21 + S&H – I was very happy to find this unit instead! On the left is the Omron part, and the new replacement on the right. Obsolete X *** No longer available *** Use the RL-1 shown above.
What kind of switch coupler do I need for Kenwood 830 hybrid?
See INSTRUCTIONS. Will fit all hybrid models, but is especially useful to replace the breakage-prone nylon band switch coupler on the 820, 530 and 830 models. These are made for metric use, for Kenwood, Yaesu, and other Japanese brands, with 0.236″ shafts.
Kenwood Part# S51-4401-05 was discontinued many years ago. Here is a pin-for-pin drop-in replacement that will cure that intermittent ALC and slow comeback receive you may start to experience. See how to locate, diagnose, and test your relay, here on the RL-1 Page.
These are the original, last remaining stock of the Kenwood 9-pin connectors. The back cover threads onto the pin carrier, which features easy-to-solder solder cups. For use as a Remote plug, pins 8 and 9 must be jumpered.
What are the radio pins on a Kenwood hybrid?
All the Kenwood Hybrid models use these. Also, practically every CB radio ever made. (Hi Hi) The mic connects to pins 1 and 4 (shield), the PTT to pins 2 and 3. These are not used on the Hybrids, but on all the later Kenwoods. Many of you have other radios and these are even harder to find than the 4 pin.
Kenwood Parts has replacements for $38.21 + S&H – I was very happy to find this unit instead! On the left is the Omron part, and the new replacement on the right. Obsolete X *** No longer available *** Use the RL-1 shown above.
