{"product_id":"starter-glow-plug-relay-for-volvo-penta-d1-d2-replaces-21400091-rm21400091","title":"Starter Glow Plug Relay for Volvo Penta D1 D2 Replaces 21400091","description":"\u003c!-- \n  ***********************************************************\n  EBAY LISTING DATA\n  ***********************************************************\n  OPTIMIZED EBAY TITLE (80 Chars): Starter Glow Plug Relay for Volvo Penta D1 D2 Replaces 21400091 RM21400091\n  SEO NOTES: Verified fitment for Volvo Penta D1\/D2\/D3 series. Replaces OEM 21400091, 873765. Manufactured by RecMar. Includes technical electrical specifications.\n--\u003e\n\n\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333333; max-width: 900px; margin: 0 auto;\"\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Starter \u0026 Glow Plug Relay for Volvo Penta D1 D2\",\n    \"description\": \"High-quality 12V 20\/30A relay for Volvo Penta marine engines. Replaces Volvo Penta part numbers 21400091 and 873765. Used for starter solenoid and glow plug circuits in D1, D2, and MD series engines.\",\n    \"brand\": { \"@type\": \"Brand\", \"name\": \"RecMar\" },\n    \"sku\": \"RM21400091\",\n    \"mpn\": \"21400091\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"url\": \"https:\/\/4boats.co.uk\/products\/starter-glow-plug-relay-for-volvo-penta-d1-d2-replaces-21400091-rm21400091\",\n      \"priceCurrency\": \"GBP\",\n      \"price\": \"{{ product.price | money_without_currency }}\",\n      \"availability\": \"https:\/\/schema.org\/InStock\"\n    }\n  }\n  \u003c\/script\u003e\n\n  \u003cdiv style=\"background-color: #2c3e50; color: #ffffff; padding: 40px 20px; text-align: center; border-radius: 6px 6px 0 0;\"\u003e\n    \u003ch1 style=\"margin: 0; font-size: 28px; letter-spacing: 1px; text-transform: uppercase; color: #ffffff;\"\u003eVolvo Penta Relay 21400091\u003c\/h1\u003e\n    \u003cp style=\"margin: 10px 0 0; font-size: 18px; color: #ecf0f1;\"\u003ePremium Replacement for Starter \u0026amp; Glow Plug Systems\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"padding: 25px; border: 1px solid #e0e0e0; border-top: none; background-color: #ffffff;\"\u003e\n    \u003cp style=\"margin-top: 0;\"\u003eThis \u003cstrong\u003eRecMar\u003c\/strong\u003e premium aftermarket relay is a direct replacement for the \u003cstrong\u003eVolvo Penta 21400091\u003c\/strong\u003e. Specifically engineered for marine environments, this 12V relay is frequently used in the electrical harnesses of the D1 and D2 engine series to control either the starter solenoid or the glow plug heating elements.\u003c\/p\u003e\n    \u003cdiv style=\"background-color: #f8f9fa; border-left: 5px solid #27ae60; padding: 15px; margin: 20px 0;\"\u003e\n      \u003cstrong style=\"color: #27ae60;\"\u003eRELIABILITY:\u003c\/strong\u003e Potted and sealed to resist corrosion and moisture ingress, ensuring consistent performance in harsh marine conditions.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; margin-top: 20px; gap: 20px;\"\u003e\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eKey Features\u003c\/h3\u003e\n      \u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Direct fit for Volvo Penta D1\/D2 engines\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Dual use (Starter or Glow Plug control)\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ High-grade copper internal contacts\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Robust vibration-resistant housing\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eTechnical Specs\u003c\/h3\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eVoltage:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee; text-align: right;\"\u003e12V DC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee; text-align: right;\"\u003e20\/30 Amp\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eTerminals:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee; text-align: right;\"\u003eStandard Pin Configuration\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #eee; text-align: right;\"\u003eApprox. 38g\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eCompatibility \/ Fitment Guide\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n        \u003cthead\u003e\n          \u003ctr style=\"background-color: #ecf0f1;\"\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eEngine Series\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eSpecific Models\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eUsage\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eVolvo Penta D1\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD1-13, D1-20, D1-30 (A\/B\/F variants)\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStarter\/Glow\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eVolvo Penta D2\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD2-40, D2-50F, D2-55, D2-60F, D2-75\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStarter\/Glow\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eVolvo Penta MD\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMD2010, MD2020, MD2030, MD2040\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStarter\/Glow\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTAMD \/ D3+\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTAMD63, TAMD73, TAMD74, D3 Series\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eVarious Circuits\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eOEM Cross Reference\u003c\/h3\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e21400091, 873765, 873604, 3171420, 841177\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRecMar:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRM21400091, REC21400091\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- QUESTIONS \u0026 ANSWERS SECTION --\u003e\n  \u003cdiv style=\"margin-top: 30px; background-color: #fcfcfc; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px;\"\u003e\n    \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eQuestions \u0026amp; Answers\u003c\/h3\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eIs this a genuine original part?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eThis is a premium quality aftermarket replacement part manufactured by RecMar to meet or exceed original equipment (OE) standards for fitment and marine reliability.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eHow do I know if it is compatible?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eWe recommend checking the SKU\/MPN and Cross Reference list provided above. If your original relay has the number 21400091 or 873765 stamped on it, this is the correct part.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 0;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eCan this relay be used for both the starter and the glow plugs?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eYes, on many Volvo Penta D1 and D2 diesel engines, the same relay part number is used for both the starter solenoid activation and the glow plug heating circuit. Many owners keep a spare onboard for this reason.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px; text-align: center; font-size: 14px; color: #7f8c8d; border-top: 1px solid #eee; padding-top: 20px;\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please verify your original part number against the references above before purchasing. All technical data is provided for informational purposes based on current manufacturer specifications.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Repower Marine","offers":[{"title":"Default Title","offer_id":56227518316927,"sku":"RM21400091","price":14.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/8216\/7897\/files\/s-l1600_b55037bd-b68f-4e99-9060-0f51b4f100e7.webp?v=1779110447","url":"https:\/\/4boats.co.uk\/products\/starter-glow-plug-relay-for-volvo-penta-d1-d2-replaces-21400091-rm21400091","provider":"4Boats","version":"1.0","type":"link"}