Mercedes-Benz 722.6 5-Speed Automatic Transmissions (Used OEM Tested Units

Mercedes-Benz 722.6 5-Speed Automatic Transmissions (Used OEM Tested Units)

Unlock the full torque potential of your classic diesel build or performance restomod with our selection of hand-tested, genuine OEM Mercedes-Benz 722.6 5-speed automatic transmissions. Engineered specifically for seamless adaptability with the legendary OM60X engine family—including the OM601, OM602, OM603, OM605, and high-performance OM606 platforms—these gearboxes are the undisputed gold standard for high-horsepower diesel swaps, overland 4×4 conversions, and turbo build upgrades.

The 722.6 electronic automatic gearbox (also known as the NAG1) is world-renowned for its massive internal torque thresholds, bulletproof longevity, and extensive aftermarket support. Every single unit in our inventory is harvested from an original equipment donor vehicle and subjected to a strict mechanical inspection to guarantee fluid integrity and crisp gear engagement before it ever leaves our floor.

Technical Specifications

Available Gearbox Configurations

Choose the ideal structural rating and layout tailored directly to your vehicle’s horsepower goals:

1. 722.608 (OM606 E300 Turbo Spec)

• Best For: Stock restorations or light-duty turbo builds.

• Torque/Power Rating: Comfortably handles up to 300 HP in factory trim.

• Fitment: Direct bolt-on installation for standard passenger car OM606 turbo applications without modifying bellhousing geometry.

2. 2.7L CDI Variant (European Import Spec)

• Best For: Moderate performance upgrades and daily-driven restomods.

• Torque/Power Rating: Upgraded internal clutch packs engineered to sustain the high low-end torque curves of modern common-rail diesel platforms.

• Fitment: Perfect mid-tier cross-compatibility with OM60X blocks.

3. 3.2L CDI Variant (High-Torque Performance Spec)

• Best For: High-boost, heavily modified OM606 compound turbo monster builds.

• Torque/Power Rating: The strongest passenger car OEM variant available, built to handle immense torque loads.

• Fitment: Requires swapping to an OM60X bellhousing (direct-fit solution ready for workshop pairing).

4. NAG1 4×4 Variant (Jeep JK Platform Configuration)

• Best For: Hardcore off-road 4×4 conversions, overland rigs, and truck swaps.

• Layout: Native 4×4 tail-housing built for transfer case pairing.

• Fitment: Allows an OM606 or OM605 engine to drop directly into rugged 4×4 truck frames using the correct adapter bellhousing.

Meticulous Quality Assurance

Avoid the gamble of standard junkyard pulls. Our technicians stringently bench-test each unit, executing gear engagement sweeps, inspecting electrical conductor plates, and verifying that the internal fluid is completely free from clutch debris or friction material scoring.

Secure Heavy-Duty Freight Shipping

Transmissions are high-mass components that demand heavy-duty protection. Each 722.6 gearbox is secured tightly onto a reinforced wooden shipping pallet, wrapped entirely in heavy-gauge weatherproofing film, and safely dispatched via fully tracked domestic or international freight.

Risk-Free Purchasing & Flexible Financing

Finalize your powertrain swap with total peace of mind. Your gear assembly order is completely backed by our comprehensive free 90-day return policy. To keep your project build moving forward without straining your immediate garage budget, convenient installment payment options are available directly at checkout.