{"product_id":"sierra-23-5800-marine-generator-solenoid-replaces-westerbeke-24639-fits-westerbeke-btd-wmd-bed-wta-bcd-generators","title":"Sierra 223-5800 Solenoid, Replaces Westerbeke 24639, for Select Westerbeke Generators","description":"\u003cp\u003eThe Sierra 223-5800 is a replacement cranking solenoid built for select Westerbeke marine generators. It serves as the electrical switch that engages the starter circuit when the generator start signal is given, handling the high-current draw of the starter motor while being triggered by a low-current control signal from the start switch or panel. The unit measures 3.25 x 3.25 x 3.25 inches and is rated for 10 amps of cranking current. It is built with marine grade materials for reliability in the onboard electrical environment where corrosion resistance and consistent contact performance matter. This solenoid directly replaces Westerbeke part number 24639 and is designed to fit a broad range of Westerbeke BCD, BTD, BTDA, BTDB, BTDC, WMD, WTA, WTF, BED, and BEDA generator models across both 50 Hz and 60 Hz configurations, as detailed in the Fitment section below. It is a straightforward drop-in replacement for a failed or worn factory solenoid, restoring reliable generator starting without modifying existing wiring. Included in the box is one solenoid unit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 223-5800\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 10 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase Type:\u003c\/strong\u003e Cranking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 3.25 x 3.25 x 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282291419\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Westerbeke Generator Parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWesterbeke 10.0 BTD (60Hz) \/ 7.5 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 10.0 BTDA (60Hz) \/ 7.5 BTDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 11.0 BTD (60Hz) \/ 8.3 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 11.0 WMD (60Hz) \/ 8.3 WMD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 12.5 BTD (60Hz) \/ 9.4 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 12.5 BTDA (60Hz) \/ 9.4 BTDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 12.5 BTDB (60Hz) \/ 9.4 BTDB (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 12.5 WMD (60Hz) \/ 9.4 WMD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 15.0 BTD (60Hz) \/ 12.0 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 15.0 BTDA (60Hz) \/ 12.0 BTDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 15.0 BTDB (60Hz) \/ 12.0 BTDB (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 15.0 BTDC (60Hz) \/ 12.0 BTDC (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 15.0 WTA (60Hz) \/ 12.0 WTA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 20.0 BED (60Hz) \/ 16.0 BED (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 20.0 BEDA (60Hz) \/ 16.0 BEDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 20.0 WTA (60Hz) \/ 16.0 WTA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 25.0 BED (60Hz) \/ 20.0 BED (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 25.0 WTA (60Hz) \/ 20.0 WTA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 3.0 WMD (60Hz) \/ 2.4 WMD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 32.0 BED (60Hz) \/ 25.0 BED (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 32.0 BEDA (60Hz) \/ 25.0 BEDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 32.0 BEDB (60Hz) \/ 25.0 BEDB (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 32.0 WTF (60Hz) \/ 25.0 WTF (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 4.0 BCD (60Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 4.4 BCD (60Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 4.4 WMD (60Hz) \/ 3.3 WMD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 5.0 BCD\/BCDA\/BCDB (60Hz) \/ 4.0 BCD\/BCDA\/BCDB (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 6.0 BCD (60Hz) \/ 4.5 BCD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 7.6 BTD (60Hz) \/ 5.7 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 7.7 WMD (60Hz) \/ 5.8 WMD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 8.0 BTD (60Hz) \/ 6.0 BTD (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 8.0 BTDA (60Hz) \/ 6.0 BTDA (50Hz)\u003c\/li\u003e\n\u003cli\u003eWesterbeke 8.0 WMD (60Hz) \/ 6.0 WMD (50Hz)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWesterbeke 24639\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 223-5800 solenoid do?\u003c\/strong\u003e It is the cranking solenoid for select Westerbeke marine generators, switching high-current power to the starter motor when the start circuit is triggered, and it is rated for 10 amps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part does the Sierra 223-5800 replace?\u003c\/strong\u003e This solenoid directly replaces Westerbeke part number 24639.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Westerbeke generator models does this solenoid fit?\u003c\/strong\u003e The Sierra 223-5800 fits a wide range of Westerbeke BCD, BTD, BTDA, BTDB, BTDC, WMD, WTA, WTF, BED, and BEDA generator models in both 50 Hz and 60 Hz versions, listed in full in the Fitment section.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this solenoid?\u003c\/strong\u003e The Sierra 223-5800 measures 3.25 x 3.25 x 3.25 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the solenoid weigh?\u003c\/strong\u003e It weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Westerbeke part or an aftermarket replacement?\u003c\/strong\u003e The 223-5800 is a Sierra-branded aftermarket replacement built to serve as a direct equivalent to Westerbeke part number 24639, not an original Westerbeke-branded component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat amperage rating does this solenoid have?\u003c\/strong\u003e 10 amps, sized for the cranking current draw of the compatible Westerbeke generator starter circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e One Sierra 223-5800 solenoid unit is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this solenoid work on my 8.0 BTD Westerbeke generator?\u003c\/strong\u003e Yes, the Sierra 223-5800 is listed to fit the Westerbeke 8.0 BTD (60Hz) \/ 6.0 BTD (50Hz) generator, along with the other models listed in the Fitment section.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 223-5800 built for marine use?\u003c\/strong\u003e Yes, it is built with marine grade materials intended for reliability in the onboard electrical environment of a boat generator installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the material or construction of this solenoid intended for?\u003c\/strong\u003e The Sierra 223-5800 uses marine grade construction suited to withstand the onboard marine environment, though a specific housing material is not specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need this solenoid part number instead of a different Sierra solenoid?\u003c\/strong\u003e Confirm your Westerbeke generator model against the Fitment list for the Sierra 223-5800, or match it against Westerbeke part number 24639 which this part directly replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988447834331,"sku":"SIE-23-5800","price":14.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-23-5800__32627.1558187416.500.750.jpg?v=1785188078","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-23-5800-marine-generator-solenoid-replaces-westerbeke-24639-fits-westerbeke-btd-wmd-bed-wta-bcd-generators","provider":"Good Vibes Marina","version":"1.0","type":"link"}