{"product_id":"briggs-stratton-intake-manifold-797503-replacement-for-40-44-49-series-engines-oem-fit-and-even-airflow","title":"Briggs \u0026 Stratton Intake Manifold 797503 - Replacement for 40\/44\/49-Series Engines, OEM Fit and Even Airflow","description":"\u003cb\u003eThe Briggs \u0026amp; Stratton 797503 intake manifold routes the air or air\/fuel mix evenly to each cylinder so your engine runs smoothly and efficiently.\u003c\/b\u003e\n\n\u003cp\u003eThis replacement intake manifold is built to the original equipment specifications for many Briggs \u0026amp; Stratton small engines. It provides the pathway between the carburetor or throttle body and the cylinder head, helping maintain balanced combustion, steady power delivery, and predictable throttle response. Designed to fit a roster of model numbers, this component simplifies service and restores correct airflow when the factory manifold is worn or damaged.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines will this Briggs \u0026amp; Stratton manifold fit?\u003c\/h3\u003e\n\u003cp\u003eThe 797503 intake manifold is compatible with a long list of Briggs \u0026amp; Stratton engine model families. Fitment depends on the engine model number, so verify your engine stamping before ordering to ensure a correct match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon compatible numbers: 409777, 40T677, 40T876, 40T877\u003c\/li\u003e\n  \u003cli\u003eAlso fits series like 44L977, 44M977, 44P977 and 44Q977\u003c\/li\u003e\n  \u003cli\u003eIncludes support for 49-series and 499777 model variants\u003c\/li\u003e\n  \u003cli\u003eContact supplier or check engine plate for final compatibility confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this manifold affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eA correctly functioning intake manifold ensures each cylinder receives a consistent air or air\/fuel mixture. That balance reduces rough idling, improves throttle response, and helps the engine reach expected power and efficiency levels.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDelivers even airflow to all cylinders for uniform combustion\u003c\/li\u003e\n  \u003cli\u003eReduces misfires and unstable idle caused by leaks or blockages\u003c\/li\u003e\n  \u003cli\u003eHelps maintain designed fuel economy by preserving mix distribution\u003c\/li\u003e\n  \u003cli\u003eRestores proper connection between carburetor\/throttle body and head\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before installation?\u003c\/h3\u003e\n\u003cp\u003eConfirm the manifold matches your engine model and inspect mating surfaces for damage. Replace gaskets and fasteners as needed; clean the carburetor flange and cylinder head sealing area to prevent air leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify engine model number against the compatibility list\u003c\/li\u003e\n  \u003cli\u003eUse new gaskets and torque bolts to manufacturer specs\u003c\/li\u003e\n  \u003cli\u003eInspect sealing surfaces and clean debris or old gasket material\u003c\/li\u003e\n  \u003cli\u003eCheck nearby components (brackets, sensors) for correct reinstallation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this an original Briggs \u0026amp; Stratton part or an aftermarket equivalent?\u003c\/h3\u003e\n\u003cp\u003eThe 797503 intake manifold is supplied to fit Briggs \u0026amp; Stratton engines to original tooling standards and intended as a reliable service replacement. It restores OEM-style fit and function when matched to correct engine models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured to mate with factory mounting points and ports\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct replacement with minimal modification\u003c\/li\u003e\n  \u003cli\u003eWorks with stock carburetors and throttle bodies used on listed engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This intake manifold is for owners, technicians, and small-engine repair shops maintaining Briggs \u0026amp; Stratton lawn mowers, pressure washers, generators, or other equipment using the listed model families. Buy it when the original manifold is cracked, warped, leaking, or when you need a reliable OEM-style replacement to restore proper airflow and engine performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I confirm this manifold fits my Briggs \u0026amp; Stratton engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compare your engine model number to the compatibility list and inspect the manifold flange shape and bolt pattern for a match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I replace gaskets when installing this part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, always use new gaskets and torque fasteners to spec to prevent air leaks and ensure proper sealing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Briggs \u0026 Stratton","offers":[{"title":"Default Title","offer_id":56806009405780,"sku":"B005F6RSVS","price":161.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/briggs-stratton-797503-front-view.jpg?v=1786811479","url":"https:\/\/gardenluxe.co.uk\/products\/briggs-stratton-intake-manifold-797503-replacement-for-40-44-49-series-engines-oem-fit-and-even-airflow","provider":"Gardenluxe Uk","version":"1.0","type":"link"}