Professional Parts SWEDEN 28433805 Manual Transmission Overdrive Relay - M46

The Professional Parts Sweden 28433805 is a direct-fit replacement overdrive relay designed for Volvo vehicles equipped with the M46 manual transmission. This electrical relay controls the engagement of the overdrive unit, allowing the transmission to shift into a higher effective gear ratio during highway cruising for improved fuel efficiency and reduced engine wear.

The overdrive relay is located in the vehicle's relay/fuse box area and connects the overdrive switch to the transmission's solenoid circuit. A failed relay will prevent the overdrive function from engaging or disengaging properly, resulting in reduced fuel economy or a stuck-in/out-of-overdrive condition. Replacing this relay restores full overdrive functionality and is a straightforward plug-and-play installation.

Key Features:

• Direct replacement for Volvo OE part number 3523805
• Designed for Volvo M46 manual transmission overdrive systems
• Plug-and-play installation — no wiring modification required
• Manufactured in Germany to OE specifications
• Sold as a single relay unit
• One-year parts warranty

Cross-Reference Part Numbers: 28433805, 3523805, 112827, 141022