{"product_id":"4-pcs-fuel-injector-3930573-3806248-fits-for-cummins-engine-4b3-9-4bt-4t-390-4bta3-9l","title":"4 Pcs Fuel Injector 3930573 3806248 Fits for Cummins Engine 4B3.9 4BT 4T-390 4BTA3.9L","description":"\u003ch2\u003e4-Piece Fuel Injector Set 3930573 — Direct-Fit Replacement for Cummins 4B3.9, 4BT, 4T-390 \u0026amp; 4BTA3.9L Engines\u003c\/h2\u003e\u003cp\u003eThe Cummins 4BT and 4BTA3.9L are legendary engines — found in everything from construction equipment and agricultural machinery to marine vessels and custom truck builds. Keep yours performing at its best with this complete set of four brand-new fuel injectors, engineered to restore precise fuel delivery, strong combustion, and the reliable power output these engines are known for.\u003c\/p\u003e\u003ch3\u003eWhy Choose This Injector Set?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set of 4\u003c\/strong\u003e — Replace all injectors together for balanced, even performance across all cylinders. Eliminates the rough running and power imbalance caused by mixing worn and new injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM-Equivalent Fit\u003c\/strong\u003e — Engineered to match Cummins 4B3.9, 4BT, 4T-390, and 4BTA3.9L specifications. Drops in without modifications for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% New Aftermarket Parts\u003c\/strong\u003e — Not rebuilt or remanufactured. Full service life from day one, ready for immediate installation in demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Fuel Atomization\u003c\/strong\u003e — Precise spray pattern restores full combustion efficiency, recovering lost power, improving fuel economy, and reducing black exhaust smoke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Cross-Reference Coverage\u003c\/strong\u003e — Matches multiple OEM part numbers for confident, easy ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Part Numbers\u003c\/h3\u003e\u003cp\u003e3930573 | JR930573 | J930573 | 3806248 | 3935036 | J935036 | 0432131698\u003c\/p\u003e\u003ch3\u003eCompatible Cummins Engines\u003c\/h3\u003e\u003cp\u003e4B3.9 | 4BT | 4T-390 | 4BTA3.9L\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3930573 \/ 3806248\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Set of 4 Injectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e 100% New Aftermarket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Cummins 4B3.9, 4BT, 4T-390, 4BTA3.9L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Construction equipment, agricultural machinery, marine, generators, custom builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDon't let worn injectors rob your Cummins 4BT of its legendary performance. Order the full set today and restore it to peak power — fast shipping from Fuel Parts Depot.\u003c\/p\u003e","brand":"Fuel Parts Depot","offers":[{"title":"Default Title","offer_id":46885100519580,"sku":"3930573A","price":326.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/7843\/8300\/files\/4-pcs-fuel-injector-3930573-3806248-fits-for-cummins-engine-4b39-4bt-4t-390-4bta39l-8655895.png?v=1779253212","url":"https:\/\/fuelpartsdepot.com\/en-ca\/products\/4-pcs-fuel-injector-3930573-3806248-fits-for-cummins-engine-4b3-9-4bt-4t-390-4bta3-9l","provider":"Fuel Parts Depot","version":"1.0","type":"link"}