{"product_id":"sierra-18-7057-needle-seat-assembly-for-tillotson-aj-co-ka-kb-kc-kd-wb-carburetors-replaces-chrysler-force-f010790-mercury-1395-9258","title":"Sierra Needle \u0026 Seat Assembly 18-7057 for Tillotson AJ\/CO\/KA\/KB\/KC\/KD\/WB Carburetors, Chrysler\/Force Outboard 120-135 HP","description":"\u003cp\u003eThe Sierra 18-7057 Needle and Seat Assembly is a direct-fit fuel metering component for Tillotson AJ, CO, KA, KB, KC, KD, and WB Series carburetors used on Chrysler\/Force outboard motors. This assembly controls the flow of fuel into the carburetor bowl, seating against the float-actuated needle to shut off fuel supply once the bowl reaches its proper level. A worn or pitted needle and seat is a common cause of flooding, hard starting, and rough idle, and replacing this wear part restores accurate fuel metering without the cost of a full carburetor rebuild or replacement.\u003c\/p\u003e\u003cp\u003eConstructed of metal for durability against constant fuel contact, the 18-7057 has a bore size of 0.078 inch and is built to meet or exceed the specification of the original equipment part it replaces. It fits Chrysler\/Force outboards rated at 120 HP (models 1208\/1209HD, HE, HF, and HG) and 135 HP (models 1358HA, HB, and HC). Because carburetor needle and seat fitment is model-specific, confirm your outboard's model and carburetor series against the fitment listed below before ordering.\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 18-7057\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Carburetor Series:\u003c\/strong\u003e Tillotson AJ, CO, KA, KB, KC, KD, WB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 0.078 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999320940\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler\/Force Outboard, 120 HP, models 1208\/1209HD, HE, HF, HG\u003c\/li\u003e\n\u003cli\u003eChrysler\/Force Outboard, 135 HP, models 1358HA, HB, HC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1395-9258\u003c\/li\u003e\n\u003cli\u003e1399-1138\u003c\/li\u003e\n\u003cli\u003e1399-1473\u003c\/li\u003e\n\u003cli\u003eF010790\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat carburetors does the Sierra 18-7057 needle and seat fit?\u003c\/strong\u003e It is designed for Tillotson AJ, CO, KA, KB, KC, KD, and WB Series carburetors, the type used on Chrysler\/Force outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Chrysler\/Force outboard models use part 18-7057?\u003c\/strong\u003e This needle and seat assembly fits 120 HP models 1208\/1209HD, HE, HF, and HG, and 135 HP models 1358HA, HB, and HC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the bore size of the 18-7057 needle and seat?\u003c\/strong\u003e The bore size is 0.078 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-7057 replace?\u003c\/strong\u003e It cross-references to Chrysler\/Force number F010790 and Mercury Marine numbers 1395-9258, 1399-1138, and 1399-1473.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the needle and seat made from?\u003c\/strong\u003e The Sierra 18-7057 assembly is made of metal for durability in continuous contact with fuel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM or aftermarket part?\u003c\/strong\u003e The 18-7057 is an aftermarket Sierra replacement part manufactured to meet or exceed the specification of the original equipment needle and seat it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-7057 needle and seat weigh?\u003c\/strong\u003e It weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate the needle and seat needs replacement?\u003c\/strong\u003e A worn or pitted needle and seat in a Tillotson carburetor typically causes fuel flooding, hard starting, or a rough idle, since it can no longer shut off fuel flow properly at the correct bowl level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the 18-7057 needle and seat do in the carburetor?\u003c\/strong\u003e It regulates fuel entering the carburetor bowl, with the float-actuated needle seating to stop fuel flow once the bowl reaches the proper level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-7057 needle and seat?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-7057 come as a complete assembly?\u003c\/strong\u003e Yes, the Sierra 18-7057 is sold as a complete needle and seat assembly, ready to install in a compatible Tillotson carburetor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I confirm fitment before ordering the 18-7057?\u003c\/strong\u003e Yes, because needle and seat fitment is specific to the carburetor series and outboard model, confirm your Chrysler\/Force outboard model against the 120 HP and 135 HP fitment listed for part 18-7057 before purchasing.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988360900827,"sku":"SIE-18-7057","price":9.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7057_lg__78503.1558131623.500.750.jpg?v=1785188139","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7057-needle-seat-assembly-for-tillotson-aj-co-ka-kb-kc-kd-wb-carburetors-replaces-chrysler-force-f010790-mercury-1395-9258","provider":"Good Vibes Marina","version":"1.0","type":"link"}