DB Electrical 12V PMDD Starter Replacement for Onan 191-1630/191-1667 — CCW Rotation, 16-Tooth

DB Electrical 410-21025 is a 12V CCW PMDD starter engineered as a direct aftermarket replacement for several Onan starter part numbers including 191-1630, 191-1667 and 191-2132.

This aftermarket starter is built to fit a range of small engine and RV generator applications where those Onan and equivalent OEM numbers are specified. It features a 12-volt system, counterclockwise rotation, and a 16-tooth pinion, making it compatible with many generator and small-engine installations. Before ordering, verify the OEM part number, mounting pattern, and electrical connections to ensure an accurate fit.

Which original equipment numbers does this starter replace?

This DB Electrical unit covers numerous OEM and cross-reference numbers commonly used in generators and small engines. The listing includes Onan numbers and many aftermarket and legacy references, so it’s suitable when those part numbers are specified as the required replacement.

• Onan: 191-1630, 191-1667, 191-2132
• Alternate OEMs: ANDRE NIERMANN 011630, LESTER 5706/5707, WAI 2-2244
• Cross references: ARROWHEAD 410-21025, BARSANCO 191-2158, PIC 106-201/106-203
• Other matches: MINNPAR 57-2195, WILSON 91-35-1007 / 71-35-5706

What are the key mechanical and electrical specifications?

This starter is specified as a 12-volt PMDD (permanent magnet direct drive) unit with counterclockwise rotation and a 16-tooth drive pinion. Those specs determine mesh, electrical compatibility, and rotation direction for correct engagement with the flywheel or ring gear.

• Voltage: 12 V — compatible with standard 12V systems
• Rotation: CCW (counterclockwise) — confirm engine rotation
• Teeth: 16 — ensure pinion tooth count matches flywheel gear
• Starter Type: PMDD — compact direct-drive design for small engines

How should I confirm fitment before purchasing?

Fitment confirmation requires matching the OEM part number, checking physical mounting points, and verifying electrical terminals and rotation. Compare the new starter’s dimensions and bolt pattern to the unit being replaced, and inspect plug/terminal types for an easy swap.

• Compare OEM numbers printed on the old starter with the replacement list
• Check bolt hole spacing, shaft length, and flange orientation
• Verify terminal type (stud or plug) and wiring required
• Confirm counterclockwise rotation matches your engine’s starter engagement

What applications and usage environments is this starter designed for?

This starter is intended for use on RV generators, small engines, and equipment that specify the compatible OEM numbers. It’s built for routine service and replacement tasks performed by technicians, repair shops, and informed DIYers in standard operating environments.

• Commonly used on RV generators and small stationary engines
• Suitable for maintenance, repair, and service-shop replacements
• Aftermarket construction for routine operational handling
• Not a custom high-performance unit — designed for standard duty cycles

Who is this for: This DB Electrical 410-21025 starter is aimed at service technicians, RV owners, fleet maintenance teams, and experienced DIYers who need a reliable aftermarket replacement that matches Onan and equivalent OEM part numbers. It’s best chosen when your engine or generator lists one of the cross-referenced numbers and when you can confirm rotation, tooth count, and mounting compatibility for a straightforward swap.