Dorman PTU Transfer Case Heat Shield Upgrade

Description

Product Overview

The Dorman 600-239XD PTU is a newly manufactured power transfer unit designed to replace the original equipment unit on select Ford and Lincoln vehicles. Constructed with an upgraded heat shield, the PTU reduces heat transfer to the gearbox oil by up to 30°F, while the improved seal material endures temperatures as low as -40°F, preventing oil leaks. At 55 pounds and measuring 15.37 x 12.25 x 10.5 inches, it fits the OEM specifications and includes a factory‑style drain plug for easier lubrication changes. Ready to paint if needed, this unit meets or exceeds OEM part number DT4Z7251G standards.

Usage

Ideal for off‑road enthusiasts, fleet operators, and daily drivers who demand reliable torque distribution, the Dorman PTU performs in harsh climates and heavy‑load scenarios. The heat shield protects the gearbox during prolonged towing or mountain driving, while the cold‑resistant seals ensure leak‑free operation in winter conditions. Technicians will appreciate the added drain plug, which simplifies routine oil changes and reduces service time.

Why Choose Us

Dorman’s patented design delivers proven durability beyond the factory part, backed by rigorous testing for heat and cold resistance. Each unit is manufactured in the United States, adhering to strict quality controls and offering a ready‑to‑paint finish for seamless integration. Our comprehensive fit‑verification tool ensures the correct match for your vehicle, minimizing the risk of incompatibility.

Key Features

• Patented heat shield reduces gearbox temperature by up to 30°F
• Cold‑resistant seals function down to -40°F, preventing leaks
• Integrated drain plug for easy lubrication service
• Exact OEM dimensions and weight for direct replacement
• Ready‑to‑paint surface for a factory‑like appearance

FAQ

Does this PTU fit all Ford and Lincoln models?

It fits the specific models listed in Dorman’s fit guide. Use the garage tool on our website to confirm compatibility before purchase.

Will the heat shield affect vehicle performance?

No. The heat shield is designed to protect the gearbox oil without altering torque delivery or shifting characteristics.

How often should I change the gearbox oil with this PTU?

We recommend changing the oil every 30,000 miles or according to your vehicle’s service schedule, using the built‑in drain plug for quick access.

Is the PTU ready for painting?

Yes, the unit comes with a ready‑to‑paint surface, allowing you to match the factory finish or apply a custom color.

What warranty does Dorman provide?

The PTU is covered by a limited lifetime warranty against defects in materials and workmanship.