GM 4L80E, 4L85E Early, Deep Cast Transmission Pan

GM 4L80E 4L85E Deep Cast Transmission Pan Overview

The GM 4L80E, 4L85E Early, Deep Cast Transmission Pan is a premium upgrade designed for durability, improved cooling, and long-term performance. Manufactured from heavy-duty cast aluminium, this deep pan offers increased fluid capacity and better heat dissipation compared to factory stamped steel pans. Built for GM 4L80E and 4L85E early model transmissions, it’s the ideal choice for towing, off-road use, and high-performance applications.

By replacing your OEM pan with this cast design, you reduce operating temperatures, improve transmission life, and gain extra protection for the gearbox housing.

Learn more about our range of transmission upgrades at Sunshine Coast Diesel Tuning.

Key Features of the 4L80E / 4L85E Cast Aluminium Deep Pan

• Heavy-duty cast aluminium construction for strength and durability
• Deep pan design for increased fluid capacity
• Enhanced heat dissipation to lower transmission temperatures
• Precision machined sealing surface to prevent leaks
• Compatible with GM 4L80E and 4L85E early transmissions
• Long-lasting corrosion resistance

For manufacturer details, visit the Wholesale Automatic Transmissions product page.

Specifications – GM 4L80E 4L85E Early Deep Transmission Pan

• Fitment: GM 4L80E, 4L85E Early
• Material: Cast Aluminium
• Finish: Raw machined cast
• Design: Deep transmission pan
• Increased fluid capacity: Approx. 3–4 extra litres (varies by setup)
• Includes: Drain plug for easy servicing

What’s in the Box – 4L80E / 4L85E Deep Cast Pan Kit

• 1 × GM 4L80E / 4L85E Early Cast Deep Transmission Pan
• Drain plug (pre-installed)
• Pan bolts (where applicable)
• Manufacturer instructions

Vehicle Compatibility for GM 4L80E 4L85E Deep Cast Transmission Pan

• GM 4L80E Early Models
• GM 4L85E Early Models
• Note: Not suitable for late-model 4L80E/4L85E pans with updated bolt patterns.

PDF Fitting Instructions – 4L80E / 4L85E Deep Pan

Installation guide available from the manufacturer:
Download Fitting Instructions (PDF)

Delivery & Lead Times – 4L80E 4L85E Deep Cast Transmission Pan

• In stock and ready to ship
• Standard shipping Australia-wide
• International delivery available on request
• Please allow 3–7 business days depending on location

Professional Fitting Service – GM 4L80E & 4L85E Upgrades

At Sunshine Coast Diesel Tuning, we provide professional installation of transmission pans and complete drivetrain upgrades. Our team specializes in performance diesel tuning, ensuring your GM transmission upgrade is fitted correctly and works seamlessly with your vehicle. Contact us today to book an installation service.