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
-
Enginetech®Connecting Rod Bearing SetNissan Altima 3.5L 2003, Connecting Rod Bearing Set by Enginetech®. Offers a line of premium connecting rods for those applications that typically suffer from a broken, cracked or missing rod. These are all remanufactured rods we sell...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$28.36 - $31.46 - DNJ Engine Components®Connecting Rod Bearing SetNissan Altima 2003, Connecting Rod Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and durability...Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service$24.78 - $32.59
- Sealed Power®Premium Piston Ring SetNissan Altima 2003, 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 and...Direct replacementManufactured to strict engineering quality standards$44.13 - $46.56
- Fel-Pro®Crankshaft SealNissan Altima 2003, 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$17.45 - $38.21
- Dorman®TECHoice™ Idler PulleyNissan Altima 3.5L 2003, TECHoice™ Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$27.53 - $54.76
- SKP®Drive Belt Idler PulleyNissan Altima 2003, Drive Belt Idler Pulley 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$16.87
- SKP®Valve CoverNissan Altima 2003, Valve Cover by SKP®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Precise engineering ensures second to none quality and lasting valueStringently tested with the highest quality standards$48.06 - $54.70
- MotoRad®Oil Filler CapNissan Altima 2003, Oil Filler Cap by MotoRad®. 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 your...Made with precision and quality in mindDesigned to meet your specific needs$6.90
- Delphi®Crankshaft Position SensorNissan Altima 3.5L 2003, Crankshaft 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...Extensive coverageMade from high-quality materials for ultimate durability$17.93 - $33.03
- SMP®Driver Side Camshaft Position SensorNissan Altima 3.5L 2003, Driver Side Camshaft 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....Designed specifically for motorcycle applicationsPerfect to help you work more efficiently$46.71
- Bosch®Workshop™ Engine Oil FilterNissan Altima 2003, Workshop™ Engine Oil Filter by Bosch®. When visiting your local repair shop to get a routine oil change, replace your old oil filter with a workshop oil filter from Bosch. Having an efficiency of 97.5%, this filter...Meets or exceeds all original equipment specificationsApplication-specific design for a perfect fit$3.70 - $4.28
- DNJ Engine Components®Crankshaft Main Bearing SetNissan Altima 3.5L 2003, Crankshaft Main Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and...Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service$29.16
- TRQ®Cylinder Head Gasket SetNissan Altima 2.5L 2003, Cylinder Head Gasket Set by TRQ®. Get this high-quality TRQ cylinder head gasket set at a competitive price and keep your vehicle in its top condition. Extensively tested to ensure reliable performance for many...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$76.95Save: $3.85 (5%)$73.10
- Fel-Pro®Cylinder Head GasketNissan Altima 2003, 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...Unsurpassed quality you can trustValidated for fit, form and function$28.21 - $43.69
- Brian Crower®Single Valve Spring & Titanium Retainer KitNissan Altima 3.5L 2003, Single Valve Spring & Titanium Retainer Kit by Brian Crower®. Designed for high RPM, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature...Designed to maximize horsepower and torque of your vehicleMade with meticulous attention to detail and unmatched craftsmanship$494.56
- Beck Arnley®Front Engine MountNissan Altima 2003, Front Engine Mount by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory specifications and...Mount type is an exact match to OEAdditional factory parts included where applicable$27.10 - $115.93
- Beck Arnley®Front Passenger Side Engine MountNissan Altima 2.5L 2003, Front Passenger Side Engine Mount by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory...Mount type is an exact match to OEAdditional factory parts included where applicable$38.30
- Beck Arnley®Passenger Side Engine MountNissan Altima 3.5L 2003, Passenger Side Engine Mount by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory...Mount type is an exact match to OEAdditional factory parts included where applicable$44.92
- Beck Arnley®Rear Engine MountNissan Altima 2003, Rear Engine Mount by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory specifications and...Mount type is an exact match to OEAdditional factory parts included where applicable$35.87 - $55.68
- Pioneer Automotive®Front Engine MountNissan Altima 2003, Front Engine Mount by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.90 - $106.08
- Pioneer Automotive®Front Passenger Side Engine MountNissan Altima 2003, Front Passenger Side Engine Mount by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.00 - $38.75
- Pioneer Automotive®Rear Engine MountNissan Altima 2003, Rear Engine Mount by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.01 - $40.98
- 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$66.01 - $88.24
- Continental® ContiTech™Elite™ Drive Belt Idler AssemblyNissan Altima 3.5L 2003, Elite™ Drive Belt Idler Assembly by Continental® ContiTech™. Every part in this assembly is engineered to look, install, and operate the same way or better than the factory parts. Every component meets...Original equipment equivalentFactory-like fit and dependability$35.17
- Continental® ContiTech™Elite™ Drive Belt Tensioner AssemblyNissan Altima 2.5L 2003, Elite™ Drive Belt Tensioner Assembly by Continental® ContiTech™. This belt tensioner assembly is constructed to meet OE requirements for fit, form, and function. It provides smooth, noiseless, and...Constructed to match OE form, fit, and functionMaintains its correct alignment to the belt and correct accessory belt tension$40.74
- Dayco®No Slack™ Automatic Belt Tensioner AssemblyNissan Altima 2.5L 2003, No Slack™ Automatic Belt Tensioner Assembly by Dayco®. Serpentine belt drives consist of a single belt that powers most, if not all, of the engine’s accessories. Designed to maintain constant tension on...Heavy duty cast aluminum spring case that resists cracking and fatigueSteel pivot tube which provides additional strength for critical torque requirements$46.67
- Ishino®Valve Cover GasketNissan Altima 2003, Valve Cover Gasket by Ishino®. 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$11.79 - $13.65
- Walker Products®Variable Timing SolenoidNissan Altima 2003, Variable Timing Solenoid by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$107.50 - $113.29
- NTK®Variable Valve Timing SolenoidNissan Altima 2003, Variable Valve Timing Solenoid by NTK®. The Engine Variable Valve Timing (VVT) Eccentric Shaft Sensor reports camshaft timing for greater torque, horsepower and engine efficiency across all RPM ranges while...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$110.21 - $124.40
- Gates®RPM Micro-V™ V-Ribbed BeltNissan Altima 3.5L with Power Steering 2003, RPM Micro-V™ V-Ribbed Belt by Gates®. Length: 31.213". Racing, Performance, Muscle. The only belt in the industry specifically designed for high-output and forced induction engines....Advanced, exact-fit and precision-ground belt profileTwo layers of adhesion gum for maximum strength and durability$41.50
Shop By Service Type
Popular Products
2003 Nissan Altima Engine Reviews
2 reviews
Works Fine
Apex Auto® VCS551 - Valve CoverPosted by Rocky (Modesto, CA) / June 21, 20202005 Nissan Altima
2003 Nissan Altima Models
Popular Searches