{"product_id":"baldwin-bt7349-heavy-duty-spin-on-oil-filter","title":"Baldwin BT7349 Heavy-Duty Spin-On Oil Filter | 1-16 Thread","description":"\u003ch2\u003eBaldwin BT7349 Heavy-Duty Spin-On Oil Filter — 1-16 Thread\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eBT7349\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBaldwin Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOfficial Product Type\u003c\/th\u003e\n\u003ctd\u003eLube Spin-On Engine Oil Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003e1\"-16\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOutside Diameter\u003c\/th\u003e\n\u003ctd\u003e3-11\/16 in. \/ 93.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e7-1\/8 in. \/ 181.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFiltration Rating\u003c\/th\u003e\n\u003ctd\u003e12 micron nominal \/ 30 micron absolute\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003ctd\u003eCellulose\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eGasket\u003c\/th\u003e\n\u003ctd\u003eG381-A (integral)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003ctd\u003eEngine Lubrication — Full-Flow Oil Filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOEM Cross-Reference\u003c\/th\u003e\n\u003ctd\u003eCummins 4920070 \/ Fleetguard LF3972\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e00791440076266\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSupersedes\u003c\/th\u003e\n\u003ctd\u003eBT7349 may be used in place of Baldwin BT339 (but BT339 cannot be substituted for BT7349 — see FAQ)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReplaced By\u003c\/th\u003e\n\u003ctd\u003eVerify current production status at time of order\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Baldwin BT7349 is a heavy-duty tall-canister spin-on oil filter for diesel engine applications, using cellulose media rated at \u003cstrong\u003e12 micron nominal \/ 30 micron absolute\u003c\/strong\u003e on a \u003cstrong\u003e1\"-16 mounting thread\u003c\/strong\u003e. It cross-references directly to \u003cstrong\u003eFleetguard LF3972\u003c\/strong\u003e and \u003cstrong\u003eCummins 4920070\u003c\/strong\u003e, and is also listed for selected Cummins QSB-family marine diesel applications and 5.9 L \/ 6.7 L turbo-diesel platforms. The taller 7-1\/8 in. canister is a key fitment identifier — do not substitute a shorter 1\"-16 filter based on thread alone, as filters with the same thread can have different heights, bypass settings, and media specifications. Always confirm using the existing OEM filter number.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCummins diesel engines cross-referencing \u003cstrong\u003eCummins 4920070\u003c\/strong\u003e or \u003cstrong\u003eFleetguard LF3972\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eSelected Cummins QSB-family marine diesel applications\u003c\/li\u003e\n  \u003cli\u003eCummins 5.9 L and 6.7 L turbo-diesel engine applications\u003c\/li\u003e\n  \u003cli\u003eApplications cross-referencing \u003cstrong\u003eChrysler \/ Mopar 5083285AA\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eApplications cross-referencing \u003cstrong\u003eDonaldson ELF7349\u003c\/strong\u003e or \u003cstrong\u003eWIX 57620\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eApplications where \u003cstrong\u003eBaldwin BT339\u003c\/strong\u003e is currently fitted — BT7349 is an approved upgrade replacement for BT339 (see FAQ)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfirm engine make, model, serial number, and existing OEM filter number before ordering\u003c\/strong\u003e — thread size alone is not sufficient for a tall-canister heavy-duty filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThread: 1\"-16\u003c\/li\u003e\n  \u003cli\u003eOutside diameter: 3-11\/16 in. \/ 93.7 mm\u003c\/li\u003e\n  \u003cli\u003eLength: 7-1\/8 in. \/ 181.0 mm\u003c\/li\u003e\n  \u003cli\u003eFiltration: 12 micron nominal \/ 30 micron absolute\u003c\/li\u003e\n  \u003cli\u003eMedia: Cellulose\u003c\/li\u003e\n  \u003cli\u003eGasket: G381-A (integral, furnished with filter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCross-Reference \/ Alternate Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBaldwin:\u003c\/strong\u003e BT7349\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFleetguard:\u003c\/strong\u003e LF3972\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCummins:\u003c\/strong\u003e 4920070\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDonaldson:\u003c\/strong\u003e ELF7349\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWIX:\u003c\/strong\u003e 57620\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNAPA Gold:\u003c\/strong\u003e 7620\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChrysler \/ Mopar:\u003c\/strong\u003e 5083285AA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAMSOIL:\u003c\/strong\u003e EaO80, SDF80, ASF80\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBaldwin (approved substitution):\u003c\/strong\u003e BT7349 may be used in place of BT339 — see note below\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCross-reference numbers are provided as a fitment aid only. Always confirm the original OEM filter number, thread, height, and bypass specification before substituting.\u003c\/p\u003e\n\n\u003ch3\u003eBT7349 vs. BT339 — Important Substitution Note\u003c\/h3\u003e\n\u003cp\u003eBaldwin specifically notes that \u003cstrong\u003eBT7349 may be used in place of BT339\u003c\/strong\u003e, but \u003cstrong\u003eBT339 cannot be substituted for BT7349\u003c\/strong\u003e. This means BT7349 is an approved upgrade replacement for engines that currently use BT339 — but if your engine specifies BT7349, do not fit the shorter BT339 in its place. If you are unsure which filter your engine requires, confirm using the OEM filter number from the engine service manual or the number on the existing filter.\u003c\/p\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eReplace the BT7349 at every engine oil change or at the interval specified by the engine manufacturer. For Cummins QSB and turbo-diesel applications, consult the Cummins operation and maintenance manual for the specific interval based on oil type, hours of operation, and duty cycle. Replace sooner if:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOil contamination, fuel dilution, or coolant intrusion is detected\u003c\/li\u003e\n  \u003cli\u003eInternal engine repairs have been performed\u003c\/li\u003e\n  \u003cli\u003eOil-analysis results indicate excessive contamination or filter loading\u003c\/li\u003e\n  \u003cli\u003eThe filter canister is dented, corroded, or shows signs of leakage\u003c\/li\u003e\n  \u003cli\u003eThe engine has operated under sustained high-load or high-temperature conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove the old filter and confirm its G381-A gasket has not remained on the filter head\u003c\/li\u003e\n  \u003cli\u003eClean the sealing surface on the filter base thoroughly\u003c\/li\u003e\n  \u003cli\u003eCompare the new filter’s thread, gasket, and body length against the removed filter — confirm the 7-1\/8 in. height matches the installation clearance\u003c\/li\u003e\n  \u003cli\u003eLightly coat the new filter’s gasket with clean engine oil\u003c\/li\u003e\n  \u003cli\u003eInstall by hand per Baldwin’s tightening specification — do not overtighten\u003c\/li\u003e\n  \u003cli\u003eRefill with the engine manufacturer’s specified oil grade and quantity\u003c\/li\u003e\n  \u003cli\u003eStart the engine and confirm normal oil pressure immediately\u003c\/li\u003e\n  \u003cli\u003eInspect the filter body and gasket for leaks during the first minutes of operation\u003c\/li\u003e\n  \u003cli\u003eShut down, allow oil to settle, recheck and correct the oil level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/cummins-71\"\u003eFleetguard Lube Filter LF3620\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/cummins-65\"\u003eFleetguard Fuel Filter FF5072\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/cummins-68\"\u003eFleetguard Fuel Water Separator FS1280\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/amsoil-oil-filter-asf-25\"\u003eAMSOIL Oil Filter ASF-25 | 13\/16-16 Spin-On\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/baldwin-b179-heavy-duty-spin-on-oil-filter\"\u003eBaldwin B179 Heavy-Duty Spin-On Oil Filter — 1-16 UN\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/baldwin-oil-filter-b1400\"\u003eBaldwin Oil Filter B1400\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/products\/amsoil-15w40-heavy-duty-diesel-marine-oil-ame1gc-378l\"\u003eAMSOIL 15W-40 Heavy-Duty Diesel \u0026amp; Marine Oil AME1GC — 3.78 L\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/marisolmarine.com\/collections\/oil-filters\"\u003eBrowse All Oil Filters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdl\u003e\n  \u003cdt\u003eHow do I confirm BT7349 fits my engine?\u003c\/dt\u003e\n  \u003cdd\u003eLocate the filter number on the existing filter or in your engine’s service manual. If it is Cummins 4920070, Fleetguard LF3972, WIX 57620, or Donaldson ELF7349, BT7349 is the correct Baldwin equivalent. Also confirm the 1\"-16 thread, 3-11\/16 in. diameter, and 7-1\/8 in. length match your existing filter before ordering.\u003c\/dd\u003e\n\n  \u003cdt\u003eCan I use BT7349 if my engine currently has a BT339?\u003c\/dt\u003e\n  \u003cdd\u003eYes — Baldwin specifically approves BT7349 as a replacement for BT339. However, this is a one-way substitution: BT7349 can replace BT339, but BT339 cannot be substituted for BT7349. If your engine specifies BT7349, do not fit the shorter BT339.\u003c\/dd\u003e\n\n  \u003cdt\u003eWhat is the difference between BT7349 and B179?\u003c\/dt\u003e\n  \u003cdd\u003eBoth use the same 1\"-16 thread family, but they differ in body length, media rating, and application. BT7349 is a \u003cstrong\u003e7-1\/8 in. tall canister\u003c\/strong\u003e rated at 12 micron nominal, primarily for Cummins diesel applications. B179 is a shorter format at approximately 5.38 in., rated at a different specification. Always confirm using the existing OEM filter number rather than selecting by thread alone.\u003c\/dd\u003e\n\n  \u003cdt\u003eIs BT7349 suitable for marine diesel applications?\u003c\/dt\u003e\n  \u003cdd\u003eYes, where the engine specifically calls for the Cummins 4920070 \/ Fleetguard LF3972 filter family. This includes selected Cummins QSB-series marine diesel engines. Confirm using the OEM filter number from your engine service documentation rather than the engine model name alone.\u003c\/dd\u003e\n\n  \u003cdt\u003eDo I need synthetic oil to use BT7349?\u003c\/dt\u003e\n  \u003cdd\u003eNo — BT7349 uses cellulose media and is compatible with both conventional and synthetic engine oils. Use the oil grade and specification required by your engine manufacturer regardless of the filter brand.\u003c\/dd\u003e\n\n  \u003cdt\u003eWhy does the height of the filter matter?\u003c\/dt\u003e\n  \u003cdd\u003eThe 7-1\/8 in. tall canister of BT7349 requires adequate clearance in the engine bay. Before ordering, confirm the installation space accommodates this height. A filter that is too tall for the available clearance cannot be installed safely, and using a shorter filter than specified can reduce oil capacity and bypass performance.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003chr\u003e\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e BT7349 is the right filter for customers maintaining Cummins diesel engines — particularly QSB-series marine diesels and 5.9\/6.7L turbo-diesel platforms — where the existing filter is Cummins 4920070 or Fleetguard LF3972. At $25.84 it is an accessible option against OEM Cummins or Fleetguard pricing. It also comes up when customers are upgrading from the shorter BT339 on engines where Baldwin has approved the BT7349 as the current replacement. The AMSOIL cross-reference (EaO80\/ASF80) occasionally brings in customers who are cross-shopping filter brands based on AMSOIL service records.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon customer questions:\u003c\/strong\u003e The most frequent issue is customers ordering a 1\"-16 thread filter without checking height — the 7-1\/8 in. tall canister is a specific dimension that must be confirmed against installation clearance. Always ask for the existing filter number or OEM cross-reference before completing the order. The second common question is the BT339 substitution direction — customers who currently have a BT339 on their engine sometimes ask whether they can use BT7349. The answer is yes, Baldwin approves that upgrade. The reverse is not permitted.\u003c\/p\u003e","brand":"FVW","offers":[{"title":"Default Title","offer_id":43563795513380,"sku":"BT7349","price":25.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/images_b635829d-0333-430a-8712-85d56fe668cf.jpg?v=1788810047","url":"https:\/\/marisolmarine.com\/products\/baldwin-bt7349-heavy-duty-spin-on-oil-filter","provider":"Marisol Marine Company","version":"1.0","type":"link"}