2003 GMC Sierra 3500 Engine Parts

CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:

• CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
• CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
• CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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

The turbocharger compressor wheel plays an important role in delivering high-pressure air to the intake manifold, resulting in more power. Traditional compressor wheels are made from cast aluminum, which results in higher mass and lower fatigue life when compared to the lighter-weight, stronger Rotomaster Billet Compressor Wheel. These billet wheels are well suited for high-demand applications, including performance racing applications or high duty cycle applications, such as buses or delivery vehicles. Rotomaster Billet Compressor Wheels are designed to meet or exceed O.E. performance and fit seamlessly into O.E. covers. Built for strength and tested for endurance, Rotomaster Billet Compressor Wheels provide peace of mind for severe-duty demands.

Product Features:

• Product designed and manufactured to accommodate O.E. applications
• Fits into O.E. cover, no modifications needed
• Meets or exceeds O.E. performance
• All products are tested and inspected in an ISO-9001 compliant environment
• Machined from forged billet for strength
• Milled for consistent mass and consistent center of gravity
• Machined with a high degree of precision
• Stronger than OE cast aluminum wheels resulting in higher fatigue life

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

• Steel-backed bronze or aluminum alloy
• Babbitt is used in automotive and high-performance
• Designed to perform under extreme loads w/o damaging other engine parts
• Babbitt is more environmentally friendly than other material
• Aluminum offers greater seizure resistance than other materials
• Highly reduces/eliminates bearing wear

For use on the most popular passenger car, light commercial and four-wheel drive applications, Dayco harmonic balancers use special rubber compounds to dampen and remove engine harmonics and add to engine performance. Manufactured using a premium ductile iron casting and injection bonded dampening rubber, Dayco harmonic balancers offer engine builders and technicians the highest quality replacement to standard OEM balancers, which are typically made with press inserted dampening rubber. Dayco balancers utilize both inserted and pressure-bonded rubber to provide superior bonding strength between the inner and outer balancer rings, helping minimize spin and dislocation.

Product Features:

• Designed as premium OEM replacement balancers for serpentine and V-belt drives
• Manufactured with ductile iron casting and injection bonded dampening rubber
• Engineered to offer superior bonding strength between the balancer rings

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

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
• Design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

aFe Power’s new engine oil pan brings performance engineering to the protection of your GM Silverado/Sierra HD with Duramax turbo diesel engines. This oil pan is constructed out of durable A356 cast aluminum with machined fins for maximum strength and styling. This cover incorporates a magnetic drain plug to capture loose particles for maximum engine protection. All necessary hardware is included for a hassle-free installation. Built-in External and Internal Fins: Built-in External and Internal fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain Plug: This system incorporates a magnetic drain plug that captures loose particles for maximum engine protection. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

• Constructed of Durable A356 Cast Aluminum
• Raw Finish w/Machined Fins
• Reinforcing Ribs
• Magnetic Drain Plug Captures Loose Particles

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 to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

This engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications. Level marks are clearly distinguished and properly gauged for accuracy.

Product Features:

• Ideal replacement – this engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications
• Ideal solution – level marks are clearly distinguished and properly gauged for accuracy
• Durable construction – designed and manufactured to strict specifications for reliable performance
• Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in place, ARP has developed these ultra-strong 200,000 psi bolts that let you exert maximum clamping force. Special features include 1/4′ thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:

• 1-1/16″ 12-Point Socket Size(s)
• 8740 Chromoly
• Black Oxide
• Chevy LS1/LS6
• Sold Individually
• M16 x 2.0 Thread Size
• 4.325″ Underhead Length
• 200,000 PSI

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 to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

• Unsurpassed quality that you can trust
• Uses leading edge materials
• State-of-the-art manufacturing
• Exacting tolerances
• Meets or exceeds OEM specifications
• New OEM riveted pin retaining design

Product Features:

• All wheels, shafts and corresponding bores are measured and controlled with specific go/no-go tolerances and renewed or replaced as needed to ensure trouble-free operation.
• Each unit is 100% disassembled and thoroughly cleaned using proprietary processes and dedicated specialized equipment.
• All components are inspected to exact standards, and renewed as appropriate to ensure that problematic areas that typically cause failure are renewed to the highest quality standards.
• 100% of rotating, journal, and thrust bearings and seals are replaced, and all mating surfaces/passages are renewed as required for a longer-lasting unit.
• Each unit comes with a pre-lube syringe to ensure product protection during installation.
• As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
• Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.
• Meets or exceeds O.E. performance.
• Comes with a pre-lube syringe to ensure product protection during installation.

Designed digital output for maximum signal to noise ratio. Not impacted by temperature changes and provide robust, long-lasting sensor protection. Manufactured to meet or exceed OE requirements.

Product Features:

• The sensors provide accurate readings from the gap between sensor contact and element due to its design
• Manufactured to meet or exceed OE requirements
• Enhanced sensing functionality helps reduce emissions, improve reliability and drivability
• Not impacted by temperature changes and provide robust, long-lasting sensor protection
• Designed digital output for maximum signal to noise ratio

Optimize your 01-04 LB7 GM diesel’s airflow to improve throttle response with aFe’s ATLAS 3″ turbo down-pipe. Constructed from 3″ mandrel bent steel tubing for maximum flow, the larger tube diameter and smooth transition bends allow increased airflow between your OE turbo and exhaust to reduce EGT’s for quicker turbo spool times. The CNC machined heavy duty inlet flange with turbine gasket and V-band outlet flange ensure an OE-style, 360 degree sealing surface. Coated with a black finish, the ATLAS turbo down-pipe is wrapped with thermal header tape to reduce EGT’s for improved performance and durability. Flow and Performance: The ATLAS turbo down-pipe is made from 3″ mandrel bent steel tubing offering smoother transition bends for low turbulence to deliver quicker throttle response. Perfect Fit: The ATLAS turbo down-pipe is an upgrade to the OE down-pipe and utilizes the factory mounting locations for true bolt-on performance. Finish: This down pipe is coated with a black finish and wrapped in thermal header tape for better insulation. This reduces EGT’s and under hood temperatures. Note: This system is not currently CARB exempt or available for sale in California, and cannot be used on any vehicle registered with the California Department of Motor Vehicle. This item in not legal in NY for use on vehicles with CA emissions.

Product Features:

• Mandrel Bent Black Finished Steel For Long Lasting Good Looks
• Replaces OE Down-Pipe For True Bolt-On Performance
• Wrapped in High Temp Thermal Tape For Insulation
• CNC Machined V-Band Inlet/Outlet Flange

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

The ACDelco GM Original Equipment Fuel Pump Tank Seal is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:

• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

Valley Pan Gasket

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 to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor

Product Features:

• Manufactured from high quality materials for consistent durable wear
• Precision engineered for optimum fit and function
• Designed for long-life and worry-free performance
• Melling oil pumps are tested for pressure and flow under operating conditions to ensure quality

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Protective outer coverings help provide long-lasting durability
• Color-coded wires allow for easy installation
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

The ACDelco GM Original Equipment Engine Coolant Temperature Sensor monitors the engine temperature, and is a GM-recommended replacement for your vehicle’s original component. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. This original equipment engine coolant temperature sensor has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Undergo the same stringent testing process as the original part
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

The Bladerunner charge pipes produce 20 hp and 63 lbs./ft/ torque and outflow the factory tubes by 45 percent. With the increased flow of this Charge Pipe it will reduce you exhaust gas temperatures by 100 deg..

Product Features:

• Stainless Steel
• 100% MIG-Welded
• All Hardware Included
• Hassle Free Installation

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

Replacement Oil Pump Drive Nose / Gear for Cloyes High Performance LS Timing Chain Sets.

Product Features:

• Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, Cloyes Timing Chain Sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
• Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Cloyes recommends 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
• Refer to our online catalog for detailed application-specific information
• Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems

Water Pump Gasket

Water Pump Gasket