{"product_id":"8m0118177-efi-mechanical-fuel-pump-21fp005","title":"8M0118177 Mechanical Fuel Pump Assembly","description":"\u003ch2\u003eMechanical Fuel Pump — Compatible with select Mercury Mariner 30–60 HP Four-Stroke EFI\u003c\/h2\u003e\n\u003ch3\u003eWhich pump is this?\u003c\/h3\u003e\n\u003cp\u003eThis is one complete mechanical lift pump for Mercury \/ Mariner four-stroke EFI engines in the 30–60 HP class. Current ordering numbers are 8M0118177 and 8M0141827. Predecessors: 881862T, 881862T08, 892874T01, 899106T01. Compatible with the EFI rows in the table: 30 HP EFI 3-cyl, 35 HP EFI jet, 40 HP EFI 3-cyl and 4-cyl (including jet and SeaPro), 50 HP EFI 4-cyl, 60 HP EFI 4-cyl \/ SeaPro \/ 1.0L APX \/ 60R \/ Formula 60. It is not the carb 25 \/ 30 \/ 40 HP 3-cyl family (8M0141844 \/ 881862T1 \/ T07 — that is 21FP004). Aftermarket pages that mix carb and EFI under one number are too wide. 25 HP four-stroke carb is not on this page.\u003c\/p\u003e\n\u003ch3\u003eSigns yours is due\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e30–60 HP four-stroke EFI cranks, fires, then dies or will not build rail pressure after a hot soak — the mechanical lift pump ahead of the EFI system is tired.\u003c\/li\u003e\n\u003cli\u003eFuel weep at the block pump on an EFI motor (throttle body \/ injectors, not carb bowls).\u003c\/li\u003e\n\u003cli\u003eOld stamp is 881862T08 or 899106T01, not 881862T07 \/ 8M0141844.\u003c\/li\u003e\n\u003cli\u003eNot a VST high-pressure electric module failure alone, and not a cooling impeller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWill it fit?\u003c\/h3\u003e\n\u003cp\u003eCompatible with Mercury \/ Mariner EFI serial bands in the table — organized by serial, not model year. Examples: 30 HP EFI 0P153500–0P400999, 0T409000–1B226999, and later 1C109093 \u0026amp; up; 40 \/ 50 \/ 60 HP EFI 4-cyl share long 0P \/ 0T \/ 1B \/ 1C lists; 35 jet \/ 40 SeaPro \/ 60 SeaPro 1C453840 \u0026amp; up; 60 HP 1.0L APX 1C782688 \u0026amp; up; 60R 1C615064 \u0026amp; up; Formula 60 1C104574–1C782687. Read EFI vs carb on the cowl and the serial on the midsection. Some parts lists also print 8M0141827 on later 40 HP carb — that carb application is 21FP004, not a reason to mix the two pages.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine horsepower alone does not prove fit.\u003c\/strong\u003e Match the number stamped on the pump you remove to the OEM column.\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eSerial\u003c\/th\u003e\n\u003cth\u003eHP\u003c\/th\u003e\n\u003cth\u003eOEM no.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e30 HP EFI 3 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e0P153500 THRU 0P400999；0T409000 THRU 1B226999；1C109093 THRU 1C456299；1C456300 \u0026amp;\u003c\/td\u003e\n\u003ctd\u003e30 HP\u003c\/td\u003e\n\u003ctd\u003e881862T \/ 881862T08 \/ 892874T01 \/ 899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e35 HP EFI Jet 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C453840 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e35 HP\u003c\/td\u003e\n\u003ctd\u003e8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e40 HP EFI 3 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e0P153500 THRU 0P400999；0P401000 THRU 0P515896；0T409000 THRU 1B226999；1B227000 TH\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003e881862T \/ 881862T08 \/ 892874T01 \/ 899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e40 HP EFI 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e0P153500 THRU 0P400999；0P401000 THRU 0P515896；0P515897 THRU 0P580772；0T409000 TH\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003e881862T \/ 881862T08 \/ 892874T01 \/ 899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e40 HP EFI Jet 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C051324 THRU 1C453839；1C453840 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003e899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e40 HP EFI SeaPro 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C453840 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e40 HP\u003c\/td\u003e\n\u003ctd\u003e8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e50 HP EFI 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e0P153500 THRU 0P400999；0P401000 THRU 0P515896；0P515897 THRU 0P580772；0T409000 TH\u003c\/td\u003e\n\u003ctd\u003e50 HP\u003c\/td\u003e\n\u003ctd\u003e881862T \/ 881862T08 \/ 892874T01 \/ 899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e60 HP 1.0L EFI L4 APX\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C782688 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e60 HP\u003c\/td\u003e\n\u003ctd\u003e8M0141827\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e60 HP EFI 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e0P153500 THRU 0P400999；0P401000 THRU 0P515896；0P515897 THRU 0P580772；0T409000 TH\u003c\/td\u003e\n\u003ctd\u003e60 HP\u003c\/td\u003e\n\u003ctd\u003e881862T \/ 881862T08 \/ 892874T01 \/ 899106T01 \/ 8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e60 HP EFI SeaPro 4 CYL\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C453840 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e60 HP\u003c\/td\u003e\n\u003ctd\u003e8M0118177\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e60R HP EFI Racing\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C615064 \u0026amp; Up\u003c\/td\u003e\n\u003ctd\u003e60R HP\u003c\/td\u003e\n\u003ctd\u003e8M0141827\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eFormula 60\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e1C104574 THRU 1C782687\u003c\/td\u003e\n\u003ctd\u003eFormula HP\u003c\/td\u003e\n\u003ctd\u003e899106T01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eEvery row is from this SKU fitment workbook (12 rows after empty-line filter). Same horsepower name shipped different pumps.\u003c\/p\u003e\n\u003ch3\u003eOEM and swap numbers\u003c\/h3\u003e\n\u003cp\u003eOEM \/ predecessor numbers keep the engine-brand column. Aftermarket cross-refs are numbers only.\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eClass\u003c\/th\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eName\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003ctd\u003e8M0118177\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP ASSEMBLY Fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003ctd\u003e8M0141827\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP ASSEMBLY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epredecessor\u003c\/td\u003e\n\u003ctd\u003e881862T\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP Fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epredecessor\u003c\/td\u003e\n\u003ctd\u003e881862T08\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP Fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epredecessor\u003c\/td\u003e\n\u003ctd\u003e892874T01\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP ASSEMBLY Fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epredecessor\u003c\/td\u003e\n\u003ctd\u003e899106T01\u003c\/td\u003e\n\u003ctd\u003eCompatible with Mercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003ePUMP ASSEMBLY Fuel (Sold Complete Only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ecross-ref\u003c\/td\u003e\n\u003ctd\u003e18-8866\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e899106T01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ecross-ref\u003c\/td\u003e\n\u003ctd\u003e899106P\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e899106T01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWrong part\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNOT 8M0141844 \/ 881862T1 \/ 881862T07 — carb 25 \/ 30 \/ 40 HP 3-cyl (21FP004).\u003c\/li\u003e\n\u003cli\u003eNOT diaphragm kit 883520A1 (rebuild kit, not the complete pump).\u003c\/li\u003e\n\u003cli\u003eNOT high\/low dual-pump assemblies 1399-39540 \/ 883202T02.\u003c\/li\u003e\n\u003cli\u003eNOT 2-stroke 14360A16 \/ A78.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat ships\u003c\/h3\u003e\n\u003cp\u003eOne complete mechanical fuel-pump assembly. No EFI high-pressure module, no filter, no carburetor.\u003c\/p\u003e\n\u003ch3\u003eOften replaced together\u003c\/h3\u003e\n\u003cp\u003eCarb 25 \/ 30 \/ 40 HP 3-cyl is 21FP004. Pump-plus-filter kit is 26FFK032. Diaphragm-only kit 883520A1 is not this page.\u003c\/p\u003e\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003eConfirm the motor is EFI, not carb, before you open the cowl. Read the serial against the table. Photograph the pulse hose. This pump is the mechanical lift pump on the block, not the high-pressure electric unit. Clean the pad, align the pulse hole, snug screws evenly. Prime, leak-check, idle on muffs. If the stamp is 881862T07 or 8M0141844, you want 21FP004.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my Mercury 40 HP four-stroke?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOnly EFI 40 HP rows in the table. 40 HP carb 3-cyl uses 8M0141844 (21FP004). Read EFI vs carb and the serial.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-8866 this pump?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e18-8866 is a cross-ref number for this EFI family. We list the number only. It is not the carb 25–40 HP pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eT08 vs T07?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e881862T08 is EFI (this page). 881862T07 is carb (21FP004). One suffix off is a different pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it fit 25 HP?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo 25 HP EFI row is on this table. 25 HP carb is 21FP004.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ships?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne mechanical lift pump. Not the 26FFK032 kit.\u003c\/p\u003e\n\u003ch3\u003ePlease note\u003c\/h3\u003e\n\u003cp\u003eAftermarket fuel pump by GHMarine. Not affiliated with the engine brands named above. «Compatible with», «Replaces», and cross-ref numbers mean this part is built to work like the originals listed — always confirm the stamp on the removed pump, the engine model, and the serial range before you order. This page is the pump only, not a multi-part kit.\u003c\/p\u003e","brand":"GHMarine","offers":[{"title":"Default Title","offer_id":51797482373366,"sku":"21FP005","price":43.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5781\/8102\/files\/ghm_21FP005_01.jpg?v=1791336517","url":"https:\/\/gh-marine.com\/products\/8m0118177-efi-mechanical-fuel-pump-21fp005","provider":"GH Marine","version":"1.0","type":"link"}