Starter for Ford Explorer (1997-2010) 4.0L

High-Torque PMGR Starter Motor for 1997-2010 Ford Explorer (UN105 / U152 / U251)

What it Does: The replacement starter motor delivers high-torque cranking power to the 1997-2010 Ford Explorer 4.0L engine to eliminate slow cranks and intermittent no-start conditions.

The Stock Ford Explorer Starter Failure Points

Factory starters on the Ford Cologne 4.0L SOHC V6 frequently fail due to prolonged thermal cycling, internal brush degradation, and solenoid contact pitting. Mounted low on the engine block, original units endure severe exhaust heat radiation and road contamination, causing high internal resistance, sluggish cranking, and repeated contact chatter. Over time, worn solenoid contacts cause intermittent no-start conditions, single-click failures, or drive gear milling against the flexplate ring gear.

The Engineering Solution

This replacement unit incorporates a PMGR (Permanent Magnet Gear Reduction) architecture delivering 1.4 kW of starting power at 12 volts while drawing significantly lower amperage than legacy direct-drive units. Engineered with dense copper windings, high-durability internal brushes, and a heavy-duty contact solenoid, it provides stable cranking torque under high thermal load. A surface-hardened 10-tooth pinion drive gear ensures precise, positive meshing with the flexplate ring gear, resisting tooth wear and gear runout under severe duty cycles.

What's Included

• 1 PMGR Starter Motor

Technical Specifications

Compatibility

• 1997-2010 Ford Explorer 4.0L V6 (Automatic Transmission Only)

Frequently Asked Questions & Fitment Warnings

Does this fit the UN105, U152, and U251 Explorer?

Yes, this is a direct fit for the 1997-2010 Ford Explorer equipped with the 4.0L Cologne V6 engine. Fits automatic transmission models only; manual transmission applications are excluded.

Do I need to modify any wiring or connectors during installation?

No, this unit retains the factory bolt pattern and terminal configuration for plug-and-play installation to your original wiring harness.

The Ford Truck Durability Standard

Engineered to handle severe utility demands, this starter delivers dependable high-torque engagement in freezing conditions, extreme heat, and rugged trail use.