Denso 210-0843 Alternator

Denso Reman Alternator for Volvo S40

The Denso 210-0843 reman alternator is a 12-volt charging system component built for the 2004 Volvo S40 with a 150 amp output. It is a direct-fit remanufactured alternator for drivers and technicians looking for OE-style fitment, internal fan cooling, and clockwise rotation in a Volvo S40 charging system repair.

Key Features

• 12.0-volt alternator with 150 amp amperage rating
• Internal fan design for charging system cooling
• Clockwise rotation
• Remanufactured to Denso OE standards
• First Time Fit design for proper mounting and alignment
• Built for sensitive electronic systems found in modern vehicles

Product Line Details

Denso Reman Alternator units are remanufactured using tested cores and OE assembly benchmarks. Critical components such as stators, rectifiers, rotors, slip rings, and bearings are evaluated and finished to support reliable electrical output and reduced brush wear. The result is an OE-style replacement that matches the fit and function expected in demanding charging system applications.

This part cross-references Bosch AL9356X for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage in a 2004 Volvo S40
• Electrical system instability from weak alternator performance
• Hard starting after the vehicle sits
• Accessory and electronics issues related to insufficient charging

Installation Notes

Fits 2004 Volvo S40, N/A. Verify pulley alignment, belt condition, and electrical connector condition before installation. Confirm the replacement matches the vehicle’s 12-volt, 150 amp, internal fan, clockwise-rotation configuration. Use the part number 210-0843 to confirm application before ordering or installation.

Quality Assurance

Denso reman alternators are tested to OE-focused standards, including high-voltage validation of internal components and bearing preparation with premium lubricants. The 210-0843 is part of Denso’s OE family and is built to meet the electrical demands of vehicles with multiple onboard systems. For 2004 Volvo S40 charging system service, 210-0843 provides an OE-style replacement backed by Denso remanufacturing processes.