MPA Electrical 201-39124 Starter

Starter for Mack Heavy-Duty Applications

The MPA Electrical 201-39124 starter is a new replacement starter for select Mack trucks with 12V electrical systems. It is built for heavy-duty starting performance and matches the application details listed for RB, RD, and LE models.

Key Features

• New starter assembly for electrical starting system service
• 12V design for the listed Mack applications
• 7.8 kW output specification
• 11-tooth clockwise pinion configuration
• OCP 39MT application detail for proper fitment matching

Fitment Details

Fits 2004-2005 Mack RB, N/A. Fits 2004 Mack RD, N/A. Fits 2000-2003 Mack LE, N/A.

What It Is Used For

• No-crank or slow-crank starting complaints
• Starter noise caused by worn internal components
• Intermittent starting performance in heavy-duty service
• Replacement of a failed original starter

Installation Notes and Tips

Verify the 12V system, 7.8 kW specification, 11-tooth clockwise pinion, and OCP 39MT application details before installation. Confirm the vehicle model and year against the fitment list for the correct Mack RB, Mack RD, or Mack LE application. Professional installation is recommended for heavy-duty starting system service.

Quality Assurance

MPA Electrical identifies this part as a new starter assembly for the listed applications. Part number 201-39124 should be matched to the vehicle’s original starter specifications before replacement.