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Tesla MX/MS SDU-F Torque Reaction Arm 1052783-00-C 1800 N*m Capacity

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Tesla MX/MS SDU-F Torque Reaction Arm 1052783-00-C 1800 N*m Capacity

Brand Name : CFN

Model Number : 1052783-00-C

Place of Origin : China

MOQ : 1

Price : Negotible

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Delivery Time : 5-10 work days

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TRQ RCTN ARM ASSY, FRGD, SDU-F For Tesla Model X/Model S (-2021) | 1052783-00-C

1. Core Function Description

As a critical torque transmission component for the front drive system of Tesla Model X/Model S (up to 2021) equipped with SDU-F (Front Drive Unit), this premium brand-grade torque reaction arm assembly (TRQ RCTN ARM ASSY) is engineered to match original factory specifications. Its core functions focus on "torque redirection + drive unit stability + vibration buffering":

Torque Reaction Redirection: It acts as a key "torque buffer" between the SDU-F and the chassis, efficiently redirecting the rotational torque generated by the front drive unit during acceleration, deceleration, and regenerative braking. This prevents excessive stress on the SDU-F mounting bolts, drive shafts, and high-voltage wiring harnesses—reducing the risk of premature wear or failure.
SDU-F Structural Stabilization: Adopting a "FRGD (Front Right/Left Guidance Design)" optimized for Tesla’s front drive layout, the assembly uses a 3-point reinforced anchoring structure to lock the SDU-F in its factory position. This avoids lateral or angular displacement of the drive unit during sharp turns or uneven road conditions, ensuring precise alignment of the drive shaft and minimizing power loss.
Vibration Damping & Noise Reduction: Integrated with a high-performance polyurethane damping bushing (tuned to SDU-F’s vibration frequency range of 15-400Hz), it absorbs over 82% of high-frequency torque vibrations. This significantly reduces "hum" or "rattle" sounds transmitted from the front drive system to the cabin, restoring a quiet driving experience.

2. Specification Parameter Table

Parameter Category	Detailed Description
Compatible Vehicles	Tesla Model X (up to 2021, all configurations with SDU-F); Tesla Model S (up to 2021, all configurations with SDU-F)
Installation Position	Front drive system (between SDU-F and front chassis frame, FRGD-aligned)
Part Number	1052783-00-C
Product Type	Integrated torque reaction arm assembly (includes main arm, damping bushing, and mounting hardware)
Material Composition	Main arm: High-strength forged steel (tensile strength ≥850MPa); Damping bushing: High-density polyurethane (Shore hardness: 70±5A)
Surface Treatment	Main arm: Electroplated zinc-nickel coating (salt spray test ≥1000 hours); Bushing: UV-resistant and anti-aging coating
Torque Handling Capacity	Maximum torque resistance: 1800 N·m (handles peak SDU-F torque output); Static load: ≥1500N
Operating Temperature	-40℃ to 120℃ (withstands SDU-F heat output and extreme ambient temperatures)
Waterproof Grade	IP67 (resists deep splashing, road salt, and under-chassis moisture)

3. Fault Judgment (Signs for Replacement)

Replace this torque reaction arm assembly immediately if you observe the following symptoms, indicating wear or failure:

Front Chassis Noise: A persistent "metallic rattle" or "low-frequency hum" from the front end during acceleration (especially at 40-80km/h) or when releasing the accelerator—caused by worn damping bushings or loose arm connections.
Visible Damage: The main arm is bent, cracked, or has deformed mounting lugs; the damping bushing is split, hardened, or detached from the arm—resulting in loss of torque redirection and stabilization functions.
SDU-F Misalignment: Uneven front tire wear (e.g., faster wear on one side), or a "vibration" in the steering wheel during acceleration—triggered by arm deformation that shifts the SDU-F out of alignment.
Loose Fasteners: Bolts securing the assembly to the SDU-F or chassis repeatedly loosen (even after re-tightening), signaling worn mounting holes or degraded structural integrity of the arm.

4. Advantages of Premium Brand-Grade (vs. Generic Products)

Advantage Dimension	This Premium Brand-Grade Assembly	Generic Products
Material & Durability	Forged steel arm (≥850MPa tensile strength) + polyurethane bushing; service life ≥10 years.	Low-grade carbon steel arm (≤400MPa) + rubber bushing; service life 1-3 years, prone to bending, rust, or bushing degradation.
Torque Handling	Designed to withstand 1800 N·m (matches SDU-F peak torque); no deformation under extreme loads.	Fails at 800-1000 N·m; bends easily during high-torque scenarios (e.g., steep hills, rapid acceleration).
Fit Precision	FRGD-aligned with factory hole positions (tolerance ≤0.1mm); direct bolt-on installation, no modifications.	Poor alignment (tolerance ≥0.8mm); requires drilling/grinding, risking SDU-F or chassis damage.
Vibration Damping	Polyurethane bushing absorbs 82% of SDU-F vibrations; cabin front noise ≤54dB at 100km/h.	Rubber bushing absorbs ≤40% of vibrations; cabin noise increases to 70+dB, affecting comfort.

5. Installation Details

5.1 Package Contents

1× TRQ RCTN ARM ASSY (1052783-00-C)
3× High-tensile mounting bolts (Tesla OE-spec M10×1.5, pre-coated with anti-seize compound)
1× Torque specification card (recommended torque: 42±2Nm for SDU-F bolts, 38±2Nm for chassis bolts)
1× Installation guide (with step-by-step diagrams for FRGD-aligned positioning)

5.2 Installation Tools Required

Torque wrench (0-200Nm range)
Socket set (13mm, 16mm)
Hydraulic jack + jack stands (to support SDU-F during installation)
Wire brush + degreaser (to clean mounting surfaces)

5.3 Installation Precautions

Safety First: Secure the front SDU-F with a hydraulic jack before removing the old assembly to prevent drive unit sagging and damage to connected components.
Disassembly Order: Remove chassis bolts first, then SDU-F bolts—avoid forcing the arm to prevent bending adjacent parts.
Alignment Check: Ensure the new assembly’s FRGD marks align with chassis reference points to maintain SDU-F positioning.
Torque Control: Use a calibrated torque wrench to avoid over-tightening (risk of bushing damage) or under-tightening (risk of loosening).

6. After-Sales Support

Warranty: 3-year/60,000-kilometer coverage (whichever comes first) for defects like arm cracking or bushing failure (non-human damage).
Technical Assistance: Dedicated EV technicians available via chat/email to assist with installation alignment or post-installation troubleshooting.
Compatibility Guarantee: 7-day no-reason return if incompatible with your Model X/S (up to 2021 with SDU-F), provided unused and in original packaging.

7. Conversion Guidance

For confirmation of compatibility with your specific Tesla model (e.g., 2020 Model S Performance with SDU-F) or to inquire about details, click "Contact Us" or message via the chat box—our team will respond promptly. Bulk purchase options (for repair shops/garages) include negotiable terms to suit your needs.

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