2003 Nissan Altima 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
- Timing Belts
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Balance Shafts
- Throttle Bodies
- Motor Oils
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Gates®DriveAlign™ Drive Belt Idler PulleyNissan Altima 3.5L 2003, DriveAlign™ Drive Belt Idler Pulley by Gates®. Built to last by resisting dirt, salt, and other under-hood contaminants and are designed for use on passenger cars and light trucks as a locked center tensioning...High quality construction provides high durability for long lifeBearing meets or exceeds OE and is designed for application specific speed and load requirements$34.77 - Dorman®OE Solutions™ Variable Valve Timing SolenoidNissan Altima 2003, OE Solutions™ Variable Valve Timing Solenoid by Dorman®. This replacement engine variable valve timing solenoid is precision-engineered to match or exceed the stock VVT on specific vehicle years, makes and models....Ideal replacement - this VVT is professionally engineered to match the function and performance of the stock solenoid on specific vehicle applicationsComplete assembly - includes all original hardware and seals required for a quick and thorough replacement$81.16 - $98.86
- Mahle®Engine Oil Pan GasketNissan Altima 2003, Engine Oil Pan Gasket 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$8.89 - $11.53
- TRQ®Oil Pressure SensorNissan Altima 3.5L 2003, 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 manufactured with...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$20.95Save: $1.05 (5%)$19.90
- TRQ®Engine Variable Timing SolenoidNissan Altima 2003, Engine Variable Timing Solenoid by TRQ®. This engine variable timing solenoid is the right choice for those who want to keep their vehicle in excellent condition. Built with the latest technology, it will provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.73 - $131.95
- iD Select®Front Engine MountNissan Altima 2003, Front Engine Mount 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, and function as your factory...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$22.42 - $45.37
- iD Select®Front Passenger Side Engine MountNissan Altima 2.5L 2003, Front Passenger Side Engine Mount 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, and...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$25.38
- iD Select®Passenger Side Engine MountNissan Altima 3.5L 2003, Passenger Side Engine Mount 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, and function...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$25.38
- iD Select®Rear Engine MountNissan Altima 2003, Rear Engine Mount 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, and function as your factory...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$27.51 - $53.44
- Gates®DriveAlign™ OE Exact Automatic Belt TensionerNissan Altima 2.5L 2003, DriveAlign™ OE Exact Automatic Belt Tensioner by Gates®. 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...Comprehensive line includes parts to fit cars, vans, SUVs, and light trucksFull line coverage for import, domestic, and heavy-duty cars, trucks, and vehicle applications$45.14
- Bando®Rib Ace™ V-Ribbed Serpentine BeltNissan Altima 2003, Rib Ace™ V-Ribbed Serpentine Belt by Bando®. Trusted by the world's Top Automakers, Bando is OE on Domestic and Import nameplates. The V-ribbed belt is precision engineered for long life under severe operating...Combines our OE technology and experience to offer an accessory drive belt that outperforms the competitionExtensive coverage for Domestic and Import applications$5.47 - $12.26
- Delphi®Camshaft Position SensorNissan Altima 2003, Camshaft Position Sensor by Delphi®. Delphi sensors use the Hall Effect or magneto resistive (MR) principles for accurate and clean signal input to the electronic control module (ECM). The result is more design...Extensive coverageApplications for ignition (camshaft and crankshaft position and speed), transmission (vehicle or engine speed) and anti-lock braking systems (wheel speed)$34.17 - $62.14
- Apex Auto®Engine Oil Pan Gasket SetNissan Altima 3.5L 2003, 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 reliability....Made with precision and quality in mindDesigned to meet your specific needs$5.13 - $5.21
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltNissan Altima 2003, Conti-V Multirib™ Serpentine Belt by Continental® ContiTech™. Designed to transmit torque and drive engine accessories, this serpentine belt provides quieter and cooler performance, greater durability, and...OE quality product for safe, reliable, and efficient performanceProvides quiet performance, even in wet conditions$16.30 - $17.22
- SKP®Front Engine MountNissan Altima 2003, Front Engine Mount by SKP®. 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$14.18 - $40.00
- SKP®Front Passenger Side Engine MountNissan Altima 2003, Front Passenger Side Engine Mount by SKP®. 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$23.43 - $24.46
- SKP®Rear Engine MountNissan Altima 2003, Rear Engine Mount by SKP®. 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$16.15 - $48.87
- TRQ®Drive Belt Idler PulleyNissan Altima 2003, Drive Belt Idler Pulley by TRQ®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$40.95Save: $1.23 (3%)$39.72
- Continental® ContiTech™Accessory Drive Belt KitNissan Altima 2.5L 2003, Accessory Drive Belt Kit by Continental® ContiTech™. When replacing a worn out serpentine belt, it's a good practice to also replace the idlers and tensioners along with it to prevent uneven wear and the risk...OE-quality products for safe, reliable, and efficient performanceManufactured with precise tolerances and ultimate quality$66.00 - $88.24
- Denso®OEM Crankshaft Position SensorNissan Altima 3.5L 2003, OEM Crankshaft Position Sensor by Denso®. 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....Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$92.11
- SMP®Crankshaft Position SensorNissan Altima 2003, Crankshaft Position Sensor by SMP®. 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...Designed specifically for motorcycle applicationsPerfect to help you work more efficiently$39.98 - $42.43
- Mahle®Timing Cover Gasket SetNissan Altima 2003, 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. Manufactured...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$20.25 - $23.21
- Apex Auto®Valve CoverNissan Altima 2003, Valve Cover by Apex Auto®. With Valve Cover Gasket. 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....Quick accurate delivery with excellent fill-rateExcellent inventory availability$71.12 - $73.08
- Dayco®Drive Rite™ V-Ribbed Serpentine BeltNissan Altima 2003, Drive Rite™ V-Ribbed Serpentine 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...More flexibility and increased airflow around the belt for prolonged service lifeRaw-edge sidewall construction along with a patented top cogged design for top performance$6.12 - $13.72
- Autotecnica®Drive Belt Idler PulleyNissan Altima 3.5L 2003, Drive Belt Idler Pulley by Autotecnica®. Designed utilizing the latest technology, this product 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$20.22
- Hitachi®Grade Actual OE Part Crankshaft Position SensorNissan Altima 2003, Grade Actual OE Part Crankshaft Position Sensor by Hitachi®. By monitoring crankshaft rotation speed and position, this sensor allows the computer to maintain effective fuel injection timing and ignition timing...Meets or exceeds OE specificationsEngineered for dependable and long-lasting performance$48.20 - $51.42
- Standard®Intermotor™ Camshaft Position SensorNissan Altima 2003, Intermotor™ Camshaft Position Sensor by Standard®. 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$30.86 - $44.18
- ITM Engine®Oil PumpNissan Altima 2003, Oil Pump by ITM Engine®. 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 with innovative manufacturing techniquesMade with maximum safety and reliability in mind$87.77 - $199.29
- ITM Engine®Connecting Rod Bearing SetNissan Altima 2003, Connecting Rod Bearing Set by ITM Engine®. 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 with innovative manufacturing techniquesMade with maximum safety and reliability in mind$18.96 - $26.06
- Fel-Pro®Engine Oil Pan Gasket SetNissan Altima 3.5L 2003, 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 lifestyle,...Direct OEM replacement for a proper fitEnsures reliable sealing performance$9.24 - $13.25
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2003 Nissan Altima Engine Reviews
2 reviews
Works Fine
Apex Auto® VCS551 - Valve CoverPosted by Rocky (Modesto, CA) / June 21, 20202005 Nissan Altima
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