Rear Air Spring Module - DM for Tesla Model X (2015-2021) | 1027461-00-G

The Backbone of Dual Motor Utility and Comfort

Why Model X DM Needs This Heavy-Duty Module

• Load-Max Adaptability: Whether you’re folding down the third row for a weekend’s worth of camping gear or loading 7 passengers, the module’s air bladder inflates in 0.7 seconds to maintain rear ride height. It supports up to 800 lbs of extra weight without sagging, preserving ground clearance and preventing uneven tire wear.
• Torque-Taming Damping: Dual Motor Model Xs deliver up to 713 lb-ft of torque, which can cause the rear to "squat" during acceleration. The module’s hydraulic core uses a high-flow valve that stiffens instantly, keeping the rear level and the tires planted—critical for avoiding loss of traction, especially with all those seats occupied.
• Off-Road Ready: Unlike sedan-focused modules, this one includes a reinforced lower mount to handle light off-roading (think: gravel roads to the trailhead). It absorbs impacts from ruts and rocks without damaging internal components, a must for Model X owners who venture beyond pavement.

Built to Withstand SUV-Size Abuse

• Reinforced 7-Ply Bladder: The air spring uses a hybrid rubber-and-fabric construction (7 layers, vs. 5 in sedan modules) to resist punctures from road debris—common with the Model X’s wider rear track. It’s tested to 35,000 inflation cycles (that’s 15+ years of daily use) and resists UV damage from sun exposure through the rear hatch.
• Titanium-Alloy Casing: The outer shell swaps steel for lightweight titanium alloy, cutting 2.3 lbs of unsprung weight while boosting strength. It’s impervious to road salt and rust, even in regions with harsh winters—essential for a vehicle designed to carry families year-round.
• Weather-Sealed Electronics: The solenoid valve (which controls air flow) is encased in a waterproof housing, rated IP6K9K to withstand high-pressure car washes and heavy rain. No more valve failures from water intrusion, a common issue in SUVs with lower ride heights.

Signs Your Model X DM Needs This Module

• Rear Hatch Alignment Issues: A sagging rear causes the hatch to rub against the frame when closing—listen for a "scraping" sound, or check for paint wear on the hatch edge.
• Bouncy Third Row Rides: Passengers in the back complain of jolts over bumps. This means the module’s damping is failing, unable to absorb impacts for the heavier rear section.
• "Suspension Fault" in Cold Weather: Freezing temps expose weak bladders—if the warning light only appears in winter, the bladder is likely cracking and losing pressure when cold.
• Uneven Brake Wear: A sagging rear shifts weight forward, causing front brakes to overwork. Check for faster wear on front rotors vs. rear—this is a red flag.

Installation: Tailored for Model X’s Unique Layout

• SUV-Specific Mounting: The module bolts to the Model X’s reinforced rear subframe via 6 high-tensile bolts (instead of 4 in sedans), ensuring a secure fit even with heavy loads. All holes and connectors align perfectly with 2015-2021 DM models—no modifications needed.
• Calibration for Third Row Use: After installation, a Tesla scanner must run a "Model X DM rear calibration" that accounts for third-row weight sensors. This ensures the module adjusts properly when seats are folded or occupied.
• Pro Tip: Replace both rear modules. The Model X’s wide rear track means uneven suspension wear can pull the vehicle to one side during braking—matching modules keep it straight and stable.