{"product_id":"jlm-marine-fuel-pump-for-johnson-evinrude-20-25-30-hp-0438555-direct-fit-replacement-28-spline","title":"JLM MARINE Fuel Pump for Johnson Evinrude 20\/25\/30 HP 0438555 — Direct-Fit Replacement, 28-Spline","description":"\u003cb\u003eJLM MARINE 0438555 is a direct-fit fuel pump engineered to replace worn units on Johnson\/Evinrude 20HP, 25HP, and 30HP outboards manufactured around 1990–2000.\u003c\/b\u003e\n\nThis replacement fuel pump delivers the correct fit and fuel delivery characteristics required by many older Johnson and Evinrude outboards. Built to match common OEM part numbers and mounting points, it helps restore consistent fuel flow that these small four-stroke and two-stroke engines need to run reliably on the water.\n\n\u003ch3\u003eHow will this pump fit my Johnson or Evinrude outboard?\u003c\/h3\u003e\n\u003cp\u003eThe 0438555 is designed as a bolt-in replacement for a range of Johnson and Evinrude models produced in the 1990s through 2000. It uses the 28-spline interface and matches several cross-reference numbers so you can confirm compatibility before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible horsepower: 20HP, 25HP, 30HP outboards\u003c\/li\u003e\n  \u003cli\u003eIntended engine years: approximately 1990–2000\u003c\/li\u003e\n  \u003cli\u003eReplaces part numbers: Johnson\/Evinrude 438555, 433386, 777764\u003c\/li\u003e\n  \u003cli\u003eAlso cross-references Sierra 18-7353 and Mallory 9-35353\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance differences can I expect after installing it?\u003c\/h3\u003e\n\u003cp\u003eThis pump restores steady fuel delivery, reducing sputter and hesitation caused by worn diaphragms or leaking valves. It’s not a performance upgrade over modern electronically controlled systems, but it brings back the reliable fuel supply these older carbureted outboards were designed around.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConsistent fuel flow for smoother idle and throttle response\u003c\/li\u003e\n  \u003cli\u003eReplacement diaphragm and internal valves to stop leaks\u003c\/li\u003e\n  \u003cli\u003eImproved starting and reduced fuel starvation under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation straightforward for a DIYer or should a mechanic handle it?\u003c\/h3\u003e\n\u003cp\u003eFor someone comfortable with basic outboard maintenance, installation is generally straightforward: remove the old pump, transfer any required brackets or fittings, and bolt the new unit in place while ensuring gaskets and linkages align. If you’re unsure about timing, linkage settings, or fuel line condition, professional installation prevents mistakes that could cause running issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBolt-on replacement with matching mounting points\u003c\/li\u003e\n  \u003cli\u003eCheck fuel lines, clamps, and gaskets during installation\u003c\/li\u003e\n  \u003cli\u003eSeek shop help if you need carburetor synchronization or pump timing adjusted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich part numbers and details should I verify before ordering?\u003c\/h3\u003e\n\u003cp\u003eConfirm the part numbers stamped on your old pump and verify engine horsepower and manufacture year. The 0438555 is intended to replace several common numbers, but checking your engine’s service manual or the existing part helps avoid ordering errors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare your old part to: 438555, 433386, 777764\u003c\/li\u003e\n  \u003cli\u003eCross-reference with Sierra 18-7353 and Mallory 9-35353\u003c\/li\u003e\n  \u003cli\u003eConfirm spline count and mounting orientation match your engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for\n\nBoat owners, mariners, and marine technicians working on Johnson or Evinrude outboards from the 1990s who need a reliable replacement pump will find the JLM MARINE 0438555 useful. It’s aimed at people restoring older boats, maintaining fleet engines, or replacing a leaking or failing fuel pump with a part that matches original fit and function. If you need to verify fitment, check your engine model year, horsepower rating, and the existing pump’s part number before ordering to ensure a correct match.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this pump fit a 1995 Johnson 25HP outboard?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 0438555 is compatible with many 1990s Johnson\/Evinrude 25HP models. Confirm by matching the old pump part number or spline\/mounting layout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace Sierra 18-7353?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — JLM MARINE 0438555 cross-references Sierra 18-7353 and several other OEM numbers for direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JLM MARINE","offers":[{"title":"Default Title","offer_id":67591493320889,"sku":"B0CT54W4SQ","price":69.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/jlm-marine-front-view-fuel-pump.jpg?v=1790553168","url":"https:\/\/redleafauto.ca\/products\/jlm-marine-fuel-pump-for-johnson-evinrude-20-25-30-hp-0438555-direct-fit-replacement-28-spline","provider":"Redleaf Auto","version":"1.0","type":"link"}