1991 Mercury Grand Marquis Engine Parts
Select Your Submodel
- Engine Assemblies
- Motor Mounts
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Engine Swap Kits
- Throttle Bodies
- Carburetors
- Motor Oils
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Anchor®Front Driver Side Engine MountMercury Grand Marquis 5.0L 1991, Front Driver Side Engine Mount by Anchor®. If you feel vibration accompanied by unusual noise when driving, this can be the sign of a bad engine mount. Replace it with a mount from the leading...Direct OEM replacementSecurely supports the engine on the chassis$10.93 - Cloyes®Engine Timing SetMercury Grand Marquis 1991, Engine Timing Set by Cloyes®. Keep your engine’s valvetrain in perfect time with Cloyes, the world leader in timing drive systems. No matter whether you need a timing gear or complete timing gear set,...Maintains critical valve timingPrevents performance problems and possible engine damage that can result from incorrect timing$28.08 - $145.17
- iD Select®Double Row Type Engine Timing SetMercury Grand Marquis 5.0L 1991, Double Row Type Engine Timing Set by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form,...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$37.83Save: $3.78 (10%)$34.05
- Sealed Power®Cast PistonMercury Grand Marquis 5.0L 1991, Cast Piston by Sealed Power®. Available on both hypereutectic and POWERFORGED pistons, DUROSHIELD is an exclusive moly-graphite skirt coating that extends engine life and essentially eliminates scuffing....Reduce friction for increased fuel economy and horsepowerEssentially eliminate scuffing and wear$24.23 - $25.71
- Enginetech®Driver Side Remanufactured Complete Cylinder HeadMercury Grand Marquis 5.0L 1991, Driver Side Remanufactured Complete Cylinder Head by Enginetech®. Designed utilizing the latest technology, this product by Enginetech features premium quality and will perform better than advertised....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$326.10
- Enginetech®Timing SetMercury Grand Marquis 5.0L 1991, Timing Set by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.74 - $50.27
- Cloyes®Outer Double Row Crankshaft SprocketMercury Grand Marquis 5.0L 1991, Outer Double Row Crankshaft Sprocket by Cloyes®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Made with precision and quality in mindDesigned to meet your specific needs$14.25
- Fel-Pro®Engine Gasket SetMercury Grand Marquis 5.0L Manufactured Before April 1991, Engine Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global...Meets or exceeds all original equipment specificationsApplication specific design to ensure a perfect fit$84.73 - $147.49
- Enginetech®Engine Full Gasket SetMercury Grand Marquis 5.0L 1991, Engine Full Gasket Set by Enginetech®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$32.50 - $78.81
- Fel-Pro®Engine Conversion Gasket SetMercury Grand Marquis 5.0L 1991, Engine Conversion Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering...Direct OEM replacement for a proper fitEnsures reliable sealing performance$26.66 - $58.60
- COMP Cams®Magnum™ Timing SetMercury Grand Marquis 5.0L 1991, Magnum™ Timing Set by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Hardened Cast Iron4 Degree Incremental Adjusting$74.95 - $97.95
- Mahle®Engine Conversion Gasket SetMercury Grand Marquis 5.0L 1991, Engine Conversion Gasket Set by Mahle®. With 1 Piece Steel Backbone Molded Rubber Oil Pan Gasket. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$52.15
- Apex Auto®Engine Conversion Gasket SetMercury Grand Marquis 5.0L 1991, Engine Conversion Gasket Set by Apex Auto®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Made with precision and quality in mindDesigned to meet your specific needs$37.32
- COMP Cams®Engine Finishing KitMercury Grand Marquis 5.0L 1991, Engine Finishing Kit by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$31.95
- Anchor®Front Passenger Side Engine MountMercury Grand Marquis 5.0L 1991, Front Passenger Side Engine Mount by Anchor®. If you feel vibration accompanied by unusual noise when driving, this can be the sign of a bad engine mount. Replace it with a mount from the leading...Direct OEM replacementSecurely supports the engine on the chassis$10.93
- Dorman®Autograde™ Engine Oil Drain PlugMercury Grand Marquis 1991, Autograde™ Engine Oil Drain Plug by Dorman®. Dorman's Oil Drain Plugs are coated for high corrosion resistance and a long service life. Designed to provide a perfect fit for a hassle free installation, this...Oil Drain Plugs are designed and constructed to strict engineering quality standardsThe finest quality at a great price$1.93 - $13.29
- Motorcraft®Mark I Engine Oil FilterMercury Grand Marquis 5.0L 1991, Mark I Engine Oil Filter by Motorcraft®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Tested and retested under extreme conditions, Motorcraft filters are also the only filters recommended for Ford, Lincoln and Mercury vehiclesHelps protect against engine wear by screening out abrasives, such as carbon, sand, dust and bits of metal$11.43
- Dorman®OE Solutions™ Harmonic Balancer Assembly KitMercury Grand Marquis 5.0L 1991, OE Solutions™ Harmonic Balancer Assembly Kit by Dorman®. Durable and sleek, Dorman Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone...Direct replacement to ensure proper fitBenchmarked against OE performance to meet strict quality standards$95.52 - $132.90
- Sealed Power®Premium Piston Ring SetMercury Grand Marquis 5.0L 1991, Premium Piston Ring Set by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle...Direct replacementManufactured to strict engineering quality standards$12.88 - $85.73
- Fel-Pro®Valve Cover Gasket SetMercury Grand Marquis 5.0L 1991, Valve Cover Gasket Set by Fel-Pro®. with Compression Stops. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel...Direct OEM replacement for a proper fitEnsures reliable sealing performance$14.50
- Gates®Micro-V™ V-Ribbed BeltMercury Grand Marquis 5.0L 1991, Micro-V™ V-Ribbed Belt by Gates®. Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are OE-equivalent, or better, in...Special belt construction eliminates belt noise, reduces tension loss, and solves problem drive applicationsUtilizes advanced materials like Aramid Fiber found in bullet-proof vests and crack and heat-resistant EPDM materials$20.24 - $28.53
- Fel-Pro®Engine Oil Pan Gasket SetMercury Grand Marquis 5.0L 1991, Engine Oil Pan Gasket Set by Fel-Pro®. Designed utilizing the latest technology, this product by Fel-Pro features premium quality and will perform better than advertised. Perfect for your vehicle and...Direct OEM replacement for a proper fitEnsures reliable sealing performance$13.93 - $29.72
- K&N®Performance Gold™ Wrench-Off Oil FilterMercury Grand Marquis 5.0L 1991, Performance Gold™ Wrench-Off Oil Filter by K&N®. Originally developed for demanding race applications, K&N's Premium Wrench-Off Oil Filter has become a favorite among consumers for its durability and...The drilled hole on the nut provides for safety wire attachmentOil filters also use a resin impregnated cellulose filter media$15.99
- Westar®Front Driver Side Engine MountMercury Grand Marquis 5.0L 1991, Front Driver Side Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$15.14
- Westar®Front Passenger Side Engine MountMercury Grand Marquis 5.0L 1991, Front Passenger Side Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$15.14
- ACDelco®Professional™ Standard V-Ribbed Serpentine BeltMercury Grand Marquis 5.0L 1991, Professional™ Standard V-Ribbed Serpentine Belt by ACDelco®. Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed to meet or exceed...Made with precision and quality in mindDesigned to meet your specific needs$29.60 - $39.48Save: 16%$24.86 - $33.27
- Mahle®Valve Cover Gasket SetMercury Grand Marquis 5.0L 1991, Valve Cover Gasket Set by Mahle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$10.87 - $40.17
- Cardone Reman®Engine Control ComputerMercury Grand Marquis without California Emission System 1991, Engine Control Computer by Cardone Reman®. Cardone Reman Remanufactured Engine Control Modules (ECC) are engineered for quick installation and no comebacks. Each unit is...100% resolder of critical components ensures superior electrical connections, no intermittent failures and longer product lifeAll modules are 100% tested with automated computerized test equipment to ensure functionality and reliable$111.20 - $173.86
- Bosch®Premium™ Spin-On Engine Oil FilterMercury Grand Marquis 5.0L 1991, Premium™ Spin-On Engine Oil Filter by Bosch®. Premium engine performance requires a premium oil filter. Bosch Premium Oil Filters protect your engine by keeping harmful particles and dirt out,...The Premium filtration media has the capacity to hold up to 14 grams of dirt* in the filter mediaA high glass content is woven into the blended media, providing greater efficiency and strength by trapping 99% of the particulates from getting into the engine$5.92
- Dorman®OE Solutions™ Engine Oil PanMercury Grand Marquis 5.0L 1991, OE Solutions™ Engine Oil Pan by Dorman®. Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable...Direct replacement - this engine oil pan is made to match the original pan on specific vehiclesComplete assembly - includes replacement pan and drain plugs to match original components$64.93 - $71.59
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1991 Mercury Grand Marquis Engine Reviews
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Best Oil For Duramax
ACDelco® - dexosD™ Light Duty Diesel SAE 0W-20 Synthetic Motor Oil, 1 QuartPosted by Aleski / October 29, 20212020 Chevy Silverado 1500
1991 Mercury Grand Marquis Models
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