GMC Sierra 3500 Transfer Cases

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

Carquest Premium vehicle speed sensors are designed to perform in harsh environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium vehicle speed sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each vehicle speed sensor undergoes extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium speed sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

• Designed to meet or exceed OE specifications for fit, form and function
• O-rings or seals are included (where applicable)
• Magnet size and strength optimized for precise signal output.
• Weather-tight connectors prevent leaks and corrosion for longer life
• Extensive design validation testing and 100% end-of-line tested
• Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Swap out a seized transfer case motor with this direct replacement. Designed to install and perform like the original motor, it uses a factory-style connector and is sealed for protection.

Product Features:

• Direct replacement – this transfer case motor fits and performs like the original motor on certain vehicle applications
• Durable construction – made with factory-style electrical connector and weathertight seal to prevent corrosion
• 100% new – this transfer case motor is entirely new, not remanufactured like competitors
• Quality assured – vehicle-specific application has been validation tested to ensure quality

This transfer case housing matches the fit and function of a cracked or leaking original equipment housing. Durably constructed, this housing includes new seals to ensure a leak-free installation.

Product Features:

• Ideal replacement – this transfer case housing is a direct replacement for a cracked or leaking original equipment housing
• Durable construction – this 100% new housing is precision-manufactured for reliable longevity
• Cost-effective solution – offers original equipment quality at a competitive price compared to original equipment
• Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life

Transfer case control module no longer in control? Restore it cost-effectively with this replacement module that provides the same function and performance of the original on specific vehicles.

Product Features:

• Direct replacement – this transfer case control module directly replaces the original equipment modules on certain vehicle years, makes and models
• Effective fix – replacement restores transfer case motor control and addresses trouble codes
• Thoroughly tested – each module undergoes rigorous testing to ensure reliable performance
• Trustworthy quality – backed by team of engineers and inspectors in the United States

This transfer case adapter replaces a damaged or cracked original equipment adapter, restoring a solid connection between the transmission and transfer case. Made of durable aluminum, this adapter includes a new gasket for a complete repair.

Product Features:

• Ideal replacement – this transfer case adapter is a direct replacement for a damaged or cracked original equipment adapter
• Durable construction – manufactured from aluminum, this transfer case adapter is made to provide years of reliable service
• Complete solution – this adapter includes a new transfer case adapter gasket for a complete repair
• Quality tested – this part has undergone try-on, corrosion and material testing to ensure a quality fit and long service life

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:

• Design type: spring loaded; multi-lip
• Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
• Excellent high temperature capabilities
• Compatible with wide range of fluids
• Delivers quality and reliable performance for every type of repair

Product Features:

• Brand may vary by location

This transfer case adapter seal matches the fit and function of worn or damaged original equipment part. This seal should be replaced as part any service that requires the transfer case and transmission to be separated.

Product Features:

• Ideal replacement – this transfer case adapter O-ring is a direct replacement for a worn or damaged original equipment seal between the transfer case and transmission
• Convenient on-hand part – this seal should be replaced whenever the transfer case is removed for service
• Application-specific design – this O-ring has been designed of durable materials specifically for this vehicle application
• Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life

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:

• Design type: spring loaded; multi-lip
• Temperature range: -100 Deg. F to 450 Deg. F; -73 Deg. C to 232 Deg.C
• Excellent dry running capabilities
• Low coefficient of friction
• Delivers quality and reliable performance for every type of repair

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:

• Design type: spring loaded; multi-lip
• Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
• Excellent high temperature capabilities
• Compatible with wide range of fluids
• Delivers quality and reliable performance for every type of repair