2003 Infiniti QX4 Engine Parts

Essential 2003 Infiniti QX4 Engine Parts

MAHLE Original – Valve Cover Gasket (Part No.VS50371SR)

Valve Cover Gasket

from

$16.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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MTC – MTC Engine Mount (Part No.A7000129247MTC)

MTC Engine Mount

from

$120.92
The MTC Engine Mount is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment they replace.

Product Features:
  • OE-Equivalent and a direct fit application.
  • Meets or exceeds the OE specifications.
  • Designed to reduce engine vibration and noise.
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Driveworks – Main Bearing Repair Sleeve (Part No.S-99181)

Main Bearing Repair Sleeve

from

$43.49
Product Features:
  • Brand may vary by location
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Carquest Premium – Engine Oil Filler Cap: 10107, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10107)

Engine Oil Filler Cap: 10107, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$12.49
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Cloyes Gear – Engine Timing Chain Guide (Part No.9-5439)

Engine Timing Chain Guide

from

$15.99
A timing chain guide serves as a track or guide, for the timing chain, connecting the crankshaft and camshaft. Designed to meet or exceed OEM performance requirements, timing guides, which are available in kits or as a stand-alone product, utilize the latest in design and material technology, ensuring quiet and maintenance-free experience

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Designed to meet or exceed OEM performance requirements
  • Refer to our online catalog for detailed application-specific information
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National – Multi Purpose Seal (Part No.228411)

Multi Purpose Seal

from

$30.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Ishino – Stone Intake Plenum Gasket (Part No.A8041112728ISH)

Stone Intake Plenum Gasket

from

$6.60
ISHINO STONE® – Ishino Corporation of Japan – has been manufacturing gaskets since 1932 and tier-1 OEM supplier to Toyota, Honda and other Japanese auto manufacturers. The Ishino Stone solution is to supply gaskets featuring a combination of different elastomer layers, carefully adapted to complement each other and preserve the integrity of the seal.

Product Features:
  • Superb quality and precision manufacturing process to ensure overall sealing dependability
  • Static sealing solutions are guaranteed to supply strong sealing power to eliminate any leakage
  • Manufactured to exact OEM specifications
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Felpro – Cylinder Head Gasket: Composite, Without Head Bolts (Part No.26219 PT)

Cylinder Head Gasket: Composite, Without Head Bolts

from

$31.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • PermaTorque head gaskets meets or exceeds all original equipment specifications
  • Validated for fit, form, and function
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Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S885)

Engine Timing Crankshaft Sprocket

from

$29.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Beck/Arnley – Crankshaft Seal (Part No.052-3741)

Crankshaft Seal

from

$14.29
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • High quality rubber designed to keep water and dirt out
  • Quality construction for fitment
  • Designed for under vehicle environment
  • Application specific for this vehicle
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WSO – Crank Position Senso (Part No.A2255169181WSO)

Crank Position Senso

from

$54.37
Crank Position Senso

Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 72821)

Engine Valve Stem Oil Seal Set

from

$50.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
  • QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
  • ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
  • INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
  • COVERAGE — Available for domestic and foreign nameplate vehicles
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Crankshaft Rebuilders – Remanufactured Crankshaft Kit (Part No.30240)

Remanufactured Crankshaft Kit

from

$353.99
Remanufactured precision machined OE crankshafts.

Product Features:
  • Includes matching rod and main bearings.
  • Journals Micropolished.
  • All units subject to complete quality inspection.
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Felpro – OIL PAN GASKET SET (Part No.OS 30591)

OIL PAN GASKET SET

from

$25.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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Dorman – Variable Valve Timing Solenoid (Part No.917-209)

Variable Valve Timing Solenoid

from

$167.99
This replacement engine variable valve timing (VVT) solenoid is precision-engineered to match the fit and function of the original VVT solenoid. Made of quality materials for a long service life, it has been tested for proper performance.

Product Features:
  • Ideal replacement – this VVT solenoid is professionally engineered to match the function and performance of the stock part on specific vehicle applications
  • Durable construction – this part is made from quality materials to ensure a long service life
  • Excellent value – the VVT solenoid is built to perform like original equipment quality at a competitive price
  • Vehicle tested – has undergone on-vehicle testing to ensure proper fit and performance
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Cloyes Gear – Engine Timing Chain Tensioner (Part No.9-5436)

Engine Timing Chain Tensioner

from

$74.99
A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design, tensioners can use spring tension or hydraulic pressure to properly tension the chain. Please refer to our online catalog for detailed application-specific information

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Meet or exceed OEM performance requirements
  • Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience
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NTC – Tama Engine Coolant Temperature Sensor (Part No.C6020463610NTC)

Tama Engine Coolant Temperature Sensor

from

$26.04
The NTC-Tama Engine Coolant Temperature Sensor is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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National – Shaft Repair Sleeve (Part No.99134)

Shaft Repair Sleeve

from

$34.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Ishino Stone – Oil Cooler Seal (Part No.A6310931094ISH)

Oil Cooler Seal

from

$2.56
Oil Cooler Seal

MAHLE Original – WATER BY-PASS CONN.G (Part No.C31682)

WATER BY-PASS CONN.G

from

$1.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

Dorman – Fuel Pump Lock Ring (Part No.579-051)

Fuel Pump Lock Ring

from

$38.49
This fuel tank sending unit gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this fuel tank sending unit gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore part functionality after the original gasket fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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NOK – Timing Cover O-Ring (Part No.A5067415316NOK)

Timing Cover O-Ring

from

$4.96
Timing Cover O-Ring

Cloyes Gear – Engine Timing Chain (Part No.9-4207)

Engine Timing Chain

from

$71.99
A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product, our chains are pre-stressed and heat-treated for increased durability. Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • CAD designed and manufactured using premium materials
  • Refer to our online catalog for detailed application-specific information
  • Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.
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Carquest Premium – Engine Camshaft Position Sensor (Part No.CSA1477)

Engine Camshaft Position Sensor

from

$49.99
A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments, including thermal shock and vibration, with unparalleled reliability, durability, and accuracy.

Product Features:
  • Products are produced in ISO 14001 and IATF 16949 certified facilities to ensure the highest quality and consistency throughout the production process.
  • Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
  • Manufactured in an anti-static environment to ensure reliability and stability.
  • Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
  • Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.
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Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S886)

Engine Timing Camshaft Sprocket

from

$45.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
See More

Ajusa – Cyl. Head Bolt Set (Part No.A3031860451AJU)

Cyl. Head Bolt Set

from

$104.24
Cyl. Head Bolt Set

Felpro – Engine Coolant Outlet Gasket (Part No.35622)

Engine Coolant Outlet Gasket

from

$3.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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2003 Infiniti QX4 Engine Parts

You count on your 2003 Infiniti QX4 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Engine Parts. With 82 Engine Parts ranging in price from $1.99 to $363.99, you’re sure to find everything you need for your 2003 Infiniti QX4.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 23 different brands like Felpro, National, and Factory Air. 2003 Infiniti QX4 Engine Parts start as low as $1.99!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 104 extensive product reviews on 2003 Infiniti QX4 Engine Parts. Some of the top-rated Engine Parts products we carry are TIMING COVER GASKET SET with 3.3 stars and Multi Purpose Seal with 3.0 stars.

Did we mention you can order your Engine Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Engine Parts inventory for your 2003 Infiniti QX4 below to get started!

Top-Rated Engine Parts Brands For Your 2003 Infiniti QX4

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Infiniti QX4 running right for years to come. In our inventory you’ll find brands like Felpro, National, Factory Air, and even more.

Popular Dorman Engine Parts

You’ll find popular Dorman brand products across Engine Timing Parts and Engine Gaskets and Seals. All are waiting to get your 2003 Infiniti QX4 back on the road. Some of the top-rated Dorman products in these categories are:
Variable Valve Timing Solenoid
from $243.99
(1)
Variable Valve Timing Solenoid
Engine Variable Timing Solenoids
Fuel Pump Lock Ring
from $38.49
(1)
Fuel Pump Lock Ring
Fuel Tank Sending Unit Gaskets

FAQs for 2003 Infiniti QX4 Engine Parts

What are the most purchased Engine Parts for the 2003 Infiniti QX4?

Out of 82 Engine Parts for the 2003 Infiniti QX4, the most popular in our inventory are:
O-Ring & Gasket A/C System Seal Kit
from $14.49
(6)
O-Ring & Gasket A/C System Seal Kit
O-Rings
Multi Purpose Seal
from $9.99
(4)
Multi Purpose Seal
Oil Pump Seals

What are the top-rated 2003 Infiniti QX4 Engine Parts?

Top-rated Engine Parts for your 2003 Infiniti QX4 based on customer reviews/ratings are:
TIMING COVER GASKET SET
from $29.99
(3)
TIMING COVER GASKET SET
“A deal considering you get the front crank seal, the water pump o rings, not enough rtv but you should know that if you work on the vq35de. Only beef”
Multi Purpose Seal
from $35.49
(2)
Multi Purpose Seal
“I boutgh this item and work great.”
Shaft Repair Sleeve
from $39.49
(1)
Shaft Repair Sleeve
“Easy to use, too early to tell how long it will last. It did stop the oil leak with a new oil seal on the front crankshaft pulley. 87 mercedes 300td.”