{"id":102060,"date":"2026-10-17T11:08:33","date_gmt":"2026-10-17T08:08:33","guid":{"rendered":"https:\/\/www.mepratuote.fi\/product\/prm-merivaihde-valitys-2091-2\/"},"modified":"2026-10-17T11:12:03","modified_gmt":"2026-10-17T08:12:03","slug":"prm-merivaihde-valitys-2091-2","status":"publish","type":"product","link":"https:\/\/www.mepratuote.fi\/en\/product\/prm-merivaihde-valitys-2091-2\/","title":{"rendered":"PRM marine gear ratio 2,09:1"},"content":{"rendered":"

PRM150D Hydraulic Drop-Center Marine Gear, Gear Ratio 2.09:1<\/h2>\n

PRM150 hydraulic drop-center marine gear for recreational boats and light commercial use, with a 2.09:1 reduction ratio.<\/p>\n

Technical specifications<\/span>
* Power rating for recreational use: 2.10 hp\/100 rpm (1.57 kW\/100 rpm). For example, if the engine\u2019s maximum RPM is 3200, the gearbox is suitable for an engine with a maximum power of approximately 67 hp\/50 kW.
* Maximum allowable engine speed: 4,500 rpm (5,000 rpm for short periods)
* Oil capacity: 1.4 liters + the amount required for the heat exchanger and hoses
* Oil connections for the heat exchanger: 1\/4\u2033 BSP
* Permissible operating temperature: 50\u00b0C \u2013 80\u00b0C; maximum permissible temperature: 90\u00b0C<\/p>\n

Transmission structure and operation<\/span><\/p>\n

The gearbox's symmetrical drive axles and friction clutches, both front and rear, allow the gearbox to be used in forward driving with both right- and left-hand propellers. The gearbox is therefore also ideally suited for twin engine installations.<\/p>\n

The hydraulically operated gearbox uses engine oil instead of hydraulic oil and therefore the marine gearbox reacts quickly and smoothly to changes in direction. The aluminium shell of the gearbox is designed to be light but strong.<\/p>\n

The turnout is reliable and durable, but in the event of a hydraulic failure, the turnout has a mechanical locking option, allowing the turnout to be driven to port in an emergency.<\/p>\n

Weight (dry) 21 kg (does not include SAE adapter plate for engine mounting and traction plate).<\/p>\n

Attachment to the engine and outlet flange<\/span><\/p>\n

The SAE plate is selected according to the engine mounting and the drive plate according to the mounting plate\/flywheel mounting for each engine. Gearbox output flange size is 4\u2033. Gearbox price does not include SAE mounting plate, oil heat exchanger, hoses or drive plate. SAE plates below (to be ordered separately).<\/p>\n\n\n\n\n\n\n
SAE adapter plates<\/th>\nSize<\/th>\nDimension A<\/th>\nDimension B<\/th>\n<\/tr>\n
MT8083S\/A<\/a><\/td>\nB\/W (Velvet Drive) plate (universal model)<\/td>\n209,55 mm<\/td>\n15,00 mm<\/td>\n<\/tr>\n
MT4902S\/A<\/a><\/td>\nVolvo SAE4 plate for Volvo Penta 2000 series engines<\/td>\n361,95 mm<\/td>\n19,05 mm<\/td>\n<\/tr>\n
MT4901S\/A<\/a><\/td>\nSAE5 plate<\/td>\n314,33 mm<\/td>\n16,00 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    <\/ul>\n<\/p>\n

    In addition to the gearbox, you also need:<\/span><\/p>\n

      \n
    • oil cooler and hoses (one thread in gear 1\/4\u2033 BSP)<\/li>\n
    • remote control cable to the reverser<\/li>\n
    • Drive plate according to the engine flywheel mounting (gear shaft splines: DIN 5464 B10X23X29)<\/li>\n
    • SAE mounting plate for securing the transmission to the engine's SAE bell housing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      PRM150D hydraulic marine gearbox<\/p>","protected":false},"featured_media":18337,"template":"","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[177208,177355],"product_tag":[],"class_list":{"0":"post-102060","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-merivaihteet","7":"product_cat-vaihteistot","8":"pa_alv-alv-255","10":"first","11":"onbackorder","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"exclude_global_add_ons":[],"addons":[],"yoast_head":"\nPRM 150D hydraulinen merivaihde v\u00e4litys 2,09:1 - Mepratuote venetarvikkeet<\/title>\n<meta name=\"description\" content=\"Venetarvikekauppaa vuodesta 1971 myym\u00e4l\u00e4ss\u00e4 ja verkossa. Kaikki veneen voimansiirron komponentit, akselit, potkurit, huolto-osat, Vetus tuotteet jne.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mepratuote.fi\/en\/product\/prm-merivaihde-valitys-2091-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PRM 150D hydraulinen merivaihde v\u00e4litys 2,09:1\" \/>\n<meta property=\"og:description\" content=\"Venetarvikekauppaa vuodesta 1971 myym\u00e4l\u00e4ss\u00e4 ja verkossa. Kaikki veneen voimansiirron komponentit, akselit, potkurit, huolto-osat, Vetus tuotteet jne.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mepratuote.fi\/en\/product\/prm-merivaihde-valitys-2091-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Mepratuote venetarvikkeet\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/fi-fi.facebook.com\/mepratuote\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-17T08:12:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mepratuote.fi\/wp-content\/uploads\/placeholder.png\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"176\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Price\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 692,00 €\" \/>\n\t<meta name=\"twitter:label2\" content=\"Availability\" \/>\n\t<meta name=\"twitter:data2\" content=\"On backorder\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.mepratuote.fi\/product\/prm-merivaihde-valitys-2091-2\/\",\"url\":\"https:\/\/www.mepratuote.fi\/product\/prm-merivaihde-valitys-2091-2\/\",\"name\":\"PRM 150D hydraulinen merivaihde v\u00e4litys 2,09:1 - Mepratuote venetarvikkeet\",\"isPartOf\":{\"@id\":\"https:\/\/www.mepratuote.fi\/sv\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.mepratuote.fi\/product\/prm-merivaihde-valitys-2091-2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.mepratuote.fi\/product\/prm-merivaihde-valitys-2091-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.mepratuote.fi\/wp-content\/uploads\/placeholder.png\",\"datePublished\":\"2026-10-17T08:08:33+00:00\",\"dateModified\":\"2026-10-17T08:12:03+00:00\",\"description\":\"Venetarvikekauppaa vuodesta 1971 myym\u00e4l\u00e4ss\u00e4 ja verkossa. 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