{"product_id":"mechanical-fuel-pump-m4503-1973-gmc-jimmy-delivery","title":"Heavy Duty Mechanical Fuel Pump Replacement Perfect For 1973 Gmc Jimmy Beater Fixer Street Legal Knockout Upgrade Straight Shot Reliability Smooth Daily Cruising Experience","description":"\u003cdiv\u003e\n\u003cp\u003eDurable Mechanical Fuel Pump for Classic GMC Jimmy Builds\u003cbr\u003e✔️ One M4503 mechanical pump matches exact 1973 design specs\u003c\/p\u003e \u003cp\u003eThis single mechanical fuel pump delivers consistent pressure for your classic ride. You install it directly into the carbureted engine block of a 1973 GMC Jimmy. The sturdy metal body routes gasoline smoothly to keep your daily cruiser running quiet. It replaces worn factory units that struggle to maintain steady flow.\u003c\/p\u003e ✅ Includes one complete pump unit ready for direct engine swap\u003cbr\u003e\n✅ Cross ref numbers cover Airtex 40446 and Delphi MF0051 standards\u003cbr\u003e\n✅ Casts solid steel internals for reliable street legal cruising\u003cbr\u003e\n✅ Snaps into place using standard mounting holes on vintage blocks\u003cbr\u003e \u003cp\u003e💡 What factors should mechanics check before swapping a mechanical fuel pump on old cars?\u003c\/p\u003e\nPinpointing the correct replacement is pretty handy when you verify a few key system details first.\n- Match the exact manufacturing year and cylinder count to the pump specs.\n- Measure the pushrod throw and bolt spacing against your current block layout.\n- Review trusted cross reference catalogs to catch any hidden fitment traps.\n- Double check the seal gasket size so fresh gasoline never leaks out.✝️\u003c\/div\u003e","brand":"ONIX","offers":[{"title":"Default Title","offer_id":67895620501739,"sku":"M4503-Fuel Pump-1973-GMC-Jimmy-OMP40446","price":60.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/SP1021MP_FRO_P01_220_d25cfe91-2b1c-4286-b1d8-886e998deedd.jpg?v=1791397676","url":"https:\/\/vxb.com\/products\/mechanical-fuel-pump-m4503-1973-gmc-jimmy-delivery","provider":"VXB Bearings","version":"1.0","type":"link"}