Improve clearance and simplify transmission plumbing with the Earl’s Straight Transmission Adapter, designed specifically for GM 4L80E applications using the long/rear 1/4-18 NPSM port. This high-quality steel adapter converts the factory thread to a -6AN male connection, allowing reliable integration with AN lines during engine swaps or custom builds. Its nickel-plated finish provides excellent corrosion resistance, while the direct-fit design ensures a secure, leak-free seal. By replacing restrictive factory hard lines, this adapter offers greater routing flexibility, improved clearance in tight transmission tunnels, and dependable performance in high-demand setups.
Features:
- Long/rear adapter for GM 4L80E transmissions
- Converts 1/4-18 NPSM male to -6AN male
- Steel construction with nickel finish for durability
- Allows flexible AN line routing during engine swaps
- Provides improved clearance over factory hard lines
- Designed for reliable, leak-free performance