1978 Mercury Monarch 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 Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Balance Shafts
- Engine Swap Kits
- Throttle Bodies
- Carburetors
- Motor Oils
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Spectra Premium®Engine Oil PanMercury Monarch 5.0L 1978, Engine Oil Pan without Gaskets by Spectra Premium®. 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$91.43 - $92.61 - Dayco®Top Cog™ V-BeltMercury Monarch 1978, Top Cog™ V-Belt by Dayco®. Specially constructed for vehicles that utilize the multiple-belt system, this product features raw-edge construction along with a patented top cogged design, which ensures maximum...Designed for power transmission to vehicle accessoriesConstructed for vehicles that utilize V-belts$9.85 - $18.61
- Fel-Pro®Cylinder Head Gasket SetMercury Monarch 1978, Cylinder Head Gasket Set by Fel-Pro®. 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...Proprietary coating - nonstick anti-friction coating seals small surface scratches and imperfectionsSealing technologies - exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair$53.89 - $84.59
- DEA®Front Driver Side Engine MountMercury Monarch 1978, Front Driver Side Engine Mount by DEA®. Designed to meet all OE standards and specifications, these engine mounts will fit your vehicle with no modifications. They will safely connect the engine to the car frame...Designed to meet or exceed OE specificationsConstructed to deliver consistent performance$4.51 - $9.53
- DEA®Front Passenger Side Engine MountMercury Monarch 1978, Front Passenger Side Engine Mount by DEA®. Designed to meet all OE standards and specifications, these engine mounts will fit your vehicle with no modifications. They will safely connect the engine to the car frame...Designed to meet or exceed OE specificationsConstructed to deliver consistent performance$5.06 - $9.64
- Apex Auto®Cylinder Head Gasket SetMercury Monarch 5.0L 1978, Cylinder Head Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and...Quick accurate delivery with excellent fill-rateExcellent inventory availability$53.42
- Mahle®Engine Oil Pan Gasket SetMercury Monarch 1978, Engine Oil Pan Gasket Set by Mahle®. Designed utilizing the latest technology, this product by Mahle features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Made with precision and quality in mindDesigned to meet your specific needs$13.96 - $41.92
- ACDelco®Professional™ Standard High Capacity V-BeltMercury Monarch 1978, Professional™ Standard High Capacity V-Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.54 - $44.05Save: up to 16%$9.74 - $37.39
- Dorman®OE Solutions™ Aluminum Timing Chain CoverMercury Monarch 5.0L 1978, OE Solutions™ Aluminum Timing Chain Cover by Dorman®. This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone...Direct replacement - this engine timing cover matches the fit and function of the original equipment coverDurable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life$108.96
- Apex Auto®Front Engine Oil Pan Gasket SetMercury Monarch 5.0L 1978, Front Engine Oil Pan 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$10.11
- TRQ®Oil Pressure SensorMercury Monarch with Oil Pressure Light 1978, Oil Pressure Sensor by TRQ®. If your vehicle has symptoms of a bad cylinder head, replace it with a cost-efficient solution by TRQ. Built to optimize your driving experience, this product is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$17.95Save: $0.90 (5%)$17.05
- Melling®Oil PumpMercury Monarch 5.0L 1978, Oil Pump by Melling®. Designed utilizing the latest technology, this Engine Oil Pump by Melling features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$44.64 - $58.89
- Four Seasons®Adjustable Drive Belt Idler AssemblyMercury Monarch 5.0L with Factory A/C 1978, Adjustable Drive Belt Idler Assembly by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix...Made with precision and quality in mindDesigned to meet your specific needs$23.66
- Four Seasons®Drive Belt Idler PulleyMercury Monarch 1978, Drive Belt Idler Pulley by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it once and fix it right with Four...Made with precision and quality in mindDesigned to meet your specific needs$13.07 - $15.79
- Mahle®Cylinder Head GasketMercury Monarch 1978, Cylinder Head Gasket 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. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.22 - $88.01
- Gates®Automotive XL™ V-BeltMercury Monarch 1978, Automotive XL™ V-Belt by Gates®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$8.82 - $27.35
- TRQ®Engine Harmonic BalancerMercury Monarch 5.0L 1978, Engine Harmonic Balancer by TRQ®. Pick out the quality and reliable TRQ engine harmonic balancer offered at a price you can afford to restore the optimal driving experience and maintain your vehicle running in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$77.95Save: $3.12 (4%)$74.83
- WVE®Short Design Oil Pressure SwitchMercury Monarch 1978, Short Design Oil Pressure Switch by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$6.79 - $36.62
- Fel-Pro®Cylinder Head GasketMercury Monarch 1978, Cylinder Head Gasket 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 resources, the gaskets meet...Direct OEM replacement for a proper fitEnsures reliable sealing performance$19.54 - $30.18
- Fel-Pro®Crankshaft SealMercury Monarch 1978, Crankshaft Seal Kit by Fel-Pro®. 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...Application specific design to ensure a perfect fitMeets or exceeds all original equipment specifications$15.35
- National®Crankshaft SealMercury Monarch 1978, Crankshaft Seal by National®. Designed utilizing the latest technology, this product by National features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Temperature range: -40 to 400 °F / -40 to 204 °CCompatible with wide range of fluids$10.31 - $27.95
- Goodyear Belts®Accessory Drive V-BeltMercury Monarch 1978, Accessory Drive V-Belt by Goodyear Belts®. Goodyear Belts has developed V-belts that meet or exceed OE requirements, ensuring long belt life and quiet operation. Restore your belt drive system’s efficiency by...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$8.71 - $22.09
- Mahle®Paper Timing Cover GasketMercury Monarch 5.0L 1978, Paper Timing Cover Gasket 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$3.18
- Mahle®Timing Cover Gasket SetMercury Monarch 5.0L 1978, Timing 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$16.42 - $20.38
- Enginetech®Engine ValveMercury Monarch 1978, Engine Valve 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 provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.21 - $282.40
- Continental® ContiTech™V-BeltMercury Monarch 5.0L 1978, V-Belt by Continental® ContiTech™. 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....Made with precision and quality in mindDesigned to meet your specific needs$14.61
- ATP®Harmonic BalancerMercury Monarch 5.0L 1978, Harmonic Balancer by ATP®. ATP Graywerks Harmonic Balancers are a high quality OE replacement alternative. The parts are developed to the OE design, ensuring they will install properly and function as...Manufactured to OE design ensuring each balancer will install properly and function as intendedDynamically balanced for proper absorption of the crankshaft vibrations$113.97 - $290.26
- Professional Products®Powerforce™ Harmonic BalancerMercury Monarch 5.0L 1978, Powerforce™ Harmonic Balancer by Professional Products®. These dampers are the dimensional duplicate of the O.E. damper used on the 2V engine. If used on a 4V engine, the accessories (alternator, A/C, etc)...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$95.61
- Standard®1/8"x27 Thread Oil Pressure SenderMercury Monarch 1978, 1/8"x27 Thread Oil Pressure Sender by Standard®. With Gauge. 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...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$26.14
- Hayden®Adjustable Drive Belt Idler AssemblyMercury Monarch 5.0L with Factory A/C 1978, Adjustable Drive Belt Idler Assembly by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging,...Constructed to ensure OE quality and reliabilityMade of steel and thermoplastic for long service life and superior dampening$24.31
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