Volvo S40 Alternators and Starters

Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Bosch Premium Starters are engineered to deliver exceptional performance and reliability, even under the most demanding conditions. Built for extremes, these starters are 100% factory tested to ensure they perform flawlessly in heat, cold, and high-demand situations. Designed to match or exceed the quality of original equipment, they offer a perfect fit and seamless integration with your vehicle. Featuring a clockwise (right) rotation, a 9-tooth configuration, and operating at 12 VDC, this starter is crafted with precision to meet the highest standards. Utilizing advanced manufacturing technologies and premium-quality components, Bosch ensures long-lasting durability and optimal functionality. Whether you’re replacing a worn-out starter or upgrading for better performance, this remanufactured starter provides outstanding value and peace of mind.

Product Features:

Product Features:
• Built for extremes – Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
• Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
• Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
• Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
• Engineered with precision, this remanufactured starter features a 9-tooth configuration and 12 VDC operation, ensuring seamless compatibility and optimal performance for your vehicle.

Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:

• Built for extremes! Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
• Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
• Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
• Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life

The Bosch Premium Starter is engineered for top-tier performance and reliability, making it a dependable choice for your vehicle’s ignition system. Designed with a clockwise (right) rotation and featuring a 10-tooth configuration, this starter ensures precise engagement and smooth operation. Operating at 12 VDC, it delivers consistent power to meet the demands of modern vehicles. Built to Bosch’s high standards, this remanufactured starter undergoes rigorous testing to ensure durability and long-lasting performance. Whether you’re replacing a worn-out starter or upgrading for enhanced reliability, this product offers exceptional value and compatibility with a wide range of vehicles.

Product Features:

Product Features:
• Engineered for top-tier performance and reliability, ensuring dependable ignition system operation.
• Designed with a 10-tooth configuration for precise engagement and smooth functionality.
• Operates at 12 VDC to deliver consistent power, meeting the demands of modern vehicles.
• Remanufactured to Bosch’s high standards, undergoing rigorous testing for durability and long-lasting performance.
• Compatible with a wide range of vehicles, offering exceptional value for replacement or upgrade needs.

This alternator pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:

• Direct replacement – this alternator pulley is designed to match the fit and function of the original pulley on specified applications
• Restores functionality – reliable replacement for an original pulley that has failed due to contamination by road debris, or damaged during service
• 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

The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:

• Application matched components ensure the charging system can be returned to like new condition.

The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:

• Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

ALT DECOUPLER PULLEY

The Bosch Premium Alternator, delivering 120 amps and 14 VDC, is engineered for peak performance and unmatched reliability. Built with 100% new components, it is designed to endure the harshest environments, ensuring long-lasting functionality even under excessive heat and high electrical demands. Its counterclockwise rotation and precisely gauged mounting points guarantee a perfect fit and seamless installation. With a focus on durability and efficiency, this alternator is ideal for vehicles requiring robust electrical output. Plus, every purchase includes free 24-hour Roadside Assistance Protection, adding extra value and peace of mind. Choose Bosch for a dependable power solution that keeps your vehicle running smoothly.

Product Features:

Product Features:
• 100% new components withstand the harshest environments for the best performance and longest life
• Built specifically to withstand excessive heat and high electrical demands.
• All mounting points 100% gauged and resized or rethreaded for proper fit
• Free 24-hour Roadside Assistance Protection with purchase of any Bosch Alternator
• Engineered for seamless installation, the counterclockwise rotation ensures compatibility and optimal performance in vehicles requiring precise electrical output.

The Bosch Premium Alternator, delivering 150 amps at 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for better performance, this Bosch alternator offers unmatched value and peace of mind.

Product Features:

Product Features:
• Full-load tested to guarantee compliance with Bosch’s strict performance specifications
• 100% factory tested, units are remanufactured (not rebuilt)
• Built to last – uses high quality materials and the most technologically advanced developments.
• Seamlessly integrates with your vehicle’s electrical system for optimal compatibility and performance.
• Engineered for dependable operation under demanding conditions, ensuring reliability and peace of mind.

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:

• Designed to meet or exceed OE specifications for fit, form and function
• Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
• Regulators and rectifiers are 100% electronically load tested for reliable charging performance
• 100% new OE-quality brushes and bearings are used to ensure long service life
• Rotors and stators are load tested and double insulated for maximum charging performance
• Slip rings are precision polished for maximum brush contact and service life
• Application-specific technical bulletins included where applicable
• All units are 100% triple tested to ensure quality and performance
• Technical support team staffed with ASE Certified Technicians: 1-800-228-9672

The WAI 120 Amp Alternator is a premium choice for reliable performance and durability. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage while maintaining low heat dissipation. The high-power rectifier assembly, featuring open junction press-fit diodes, is designed to keep the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator delivers seamless integration with your vehicle’s systems. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for longevity and efficiency, this alternator is a dependable solution for your vehicle’s electrical needs.

Product Features:

• Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
• Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
• High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
• Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
• Built for longevity and efficiency, this alternator ensures dependable performance to meet your vehicle’s electrical demands under challenging conditions.

The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 150-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for demanding applications. It features a clockwise rotation direction and is meticulously remanufactured – not rebuilt – to meet Bosch’s stringent performance standards. Each unit undergoes full-load and 100% factory testing, guaranteeing compliance with the highest quality benchmarks. Built with premium materials and cutting-edge technology, this alternator is engineered for long-lasting durability and dependable operation. Whether you’re replacing a worn-out unit or upgrading, this alternator offers outstanding value and peace of mind.

Product Features:

Product Features:
• Full-load tested to guarantee compliance with Bosch’s strict performance specifications
• 100% factory tested, units are remanufactured (not rebuilt)
• Built to last – uses high quality materials and the most technologically advanced developments.
• Delivers consistent 150-amp power output, ideal for supporting demanding electrical applications.
• Engineered with a clockwise rotation direction for seamless compatibility with specific vehicle systems.

The Bosch Premium Alternator, remanufactured to deliver 120 amps, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory tested and remanufactured using high-quality materials and cutting-edge technology, offering superior durability and longevity. With a 12-volt output and counterclockwise rotation, it is designed to meet the needs of modern vehicles while maintaining compatibility with a wide range of applications. Built to last, this alternator provides outstanding value by combining advanced engineering with Bosch’s trusted reputation for quality.

Product Features:

Product Features:
• Full-load tested to guarantee compliance with Bosch’s strict performance specifications
• 100% factory tested, units are remanufactured (not rebuilt)
• Built to last – uses high quality materials and the most technologically advanced developments.
• Designed to deliver dependable operation under demanding conditions, ensuring reliability for modern vehicles.
• Offers compatibility with a wide range of applications, making it versatile for various vehicle requirements.

The New 140 Amps Alternator from WAI delivers exceptional performance and reliability, engineered to meet or exceed OEM specifications for a seamless fit and hassle-free installation. Designed with advanced voltage regulator protection, it safeguards against transient voltage spikes, preventing potential battery damage while ensuring efficient communication with the ECU. Its high-power rectifier assembly features open junction press-fit diodes, promoting cooler operation and enhanced durability. With low saturation voltage, heat dissipation is minimized, ensuring long-lasting functionality. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for superior quality, this alternator is a dependable choice for maintaining your vehicle’s electrical system.

Product Features:

• Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
• Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
• High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
• Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
• Designed for enhanced durability, the alternator’s advanced construction minimizes heat dissipation, ensuring long-lasting performance and reliable operation in demanding conditions.

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:

Product Features:
• Designed to meet or exceed OE specifications for fit, form and function
• Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
• Regulators and rectifiers are 100% electronically load tested for reliable charging performance
• 100% new OE-quality brushes and bearings are used to ensure long service life
• Rotors and stators are load tested and double insulated for maximum charging performance
• Slip rings are precision polished for maximum brush contact and service life
• Application-specific technical bulletins included where applicable
• All units are 100% triple tested to ensure quality and performance
• Technical support team staffed with ASE Certified Technicians: 1-800-228-9672

This 150-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the moment it powers on. With WAI’s commitment to quality, this alternator is a dependable solution for maintaining your vehicle’s electrical system.

Product Features:

• Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
• Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
• High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
• Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
• Rigorously tested for enhanced reliability, ensuring consistent performance and durability in demanding conditions.

The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With an impressive 150-amp amperage rating and a 14 VDC voltage output, this alternator ensures consistent power delivery to support your vehicle’s demanding electrical needs. Designed for clockwise rotation, it integrates seamlessly into compatible systems, providing smooth and efficient operation. Built with premium materials and tested rigorously, this alternator offers durability and long-lasting performance, reducing the need for frequent replacements. Whether you’re upgrading or replacing, the Bosch Premium Alternator is engineered to meet high standards, offering excellent value and dependable functionality for your vehicle.

Product Features:

Product Features:
• Provides a robust 150-amp amperage rating to support high-demand electrical systems effectively.
• Delivers consistent 14 VDC voltage output for reliable power distribution across vehicle components.
• Engineered for clockwise rotation, ensuring smooth integration and efficient operation within compatible systems.
• Constructed with premium materials and rigorously tested for enhanced durability and long-lasting performance.
• Designed to reduce the need for frequent replacements, offering excellent value and dependable functionality.

The Bosch Premium Alternator, delivering 150 amps at 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this premium unit offers outstanding value and peace of mind.

Product Features:

Product Features:
• Full-load tested to guarantee compliance with Bosch’s strict performance specifications
• 100% factory tested, units are remanufactured (not rebuilt)
• Built to last – uses high quality materials and the most technologically advanced developments.
• Seamlessly integrates with your vehicle’s electrical system for reliable and efficient operation.
• Engineered for demanding conditions, ensuring consistent performance and peace of mind.