Catalog

MERCEDES-BENZ A2042402017 ENGINE MOUNT

MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT
MERCEDES-BENZ A2042402017 ENGINE MOUNT

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
20 sold
Wholesale price USD $14.13
Wholesale price CNY ¥96
bolt MOQ (Minimal order)
20 pcs
local_shipping Production time
25 days
package_2 Shipping Weight: 1.05 kg
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MERCEDES-BENZ A2042402017
MERCEDES-BENZ 2042402017
MERCEDES-BENZ A204240201764
MERCEDES-BENZ ENGINEMOUNTLHRHCW204
MERCEDES-BENZ BZS3500760
Overview & Operating Principle
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The ENGINE MOUNT is a vibration-isolating structural component that secures the engine and transmission assembly to the vehicle subframe or body while absorbing powertrain torque reaction and preventing engine vibration from transmitting into the cabin. A typical mount consists of a steel inner sleeve bonded to an outer steel bracket via a vulcanised rubber element — the rubber provides compliance in multiple axes. Hydraulic mounts found on higher-specification vehicles add a fluid-filled damping chamber that provides additional attenuation at specific resonant frequencies, particularly at idle.

This unit — MERCEDES-BENZ A2042402017 — is manufactured to OEM-equivalent specifications: rubber durometer, bonding strength, bracket geometry, bolt pattern, and load rating are matched to the original part. Supplied as a direct bolt-in replacement requiring no modification to the subframe or engine bracket for standard fitment. Available wholesale from 14.13 USD, MOQ 20 pcs, production lead time 25 days.

Engine mounts degrade through rubber oxidation, oil contamination, and accumulated fatigue from torque loading. A collapsed or cracked mount allows excessive powertrain movement that loads adjacent mounts disproportionately, accelerating their failure. When one mount is found to be failed on a high-mileage vehicle, inspect all remaining mounts before returning the vehicle to service.

Symptoms & Diagnostics
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Heavy clunk or thud from the engine bay during gear engagement, hard acceleration, or sudden deceleration — the powertrain is moving excessively against the failed mount.
Excessive vibration transmitted through the steering wheel, floor, or gear lever at idle — a collapsed rubber element no longer isolates engine vibration from the body structure.
Visible engine movement during acceleration when inspected from above with the bonnet open — a helper rocking the engine in gear while stationary will reveal abnormal travel in the failed mount.
Knocking or rattling from the engine bay on uneven road surfaces — the powertrain is contacting adjacent components due to insufficient mount compliance.
Vibration or noise that worsens on cold start and improves as the engine warms — typical of a hydraulic mount with a ruptured damping chamber that loses fluid over time.
Visible cracking, splitting, or oil saturation of the rubber element on inspection — oil leaks from cam cover or rocker cover gaskets accelerate rubber degradation significantly.
Logistics & Customs
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International HS Code
4016.99
EAEU Customs Code (TN VED)
4016 99 970 9
Typical Net Weight
1.05 kg
Country of Manufacture
China
Standard MOQ
20 pcs
Production Lead Time
25 days
Always verify the exact 8-digit or 10-digit subheading with your customs broker for the destination country, as tariff schedules and duty rates vary by jurisdiction.
Installation Tips
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  1. Support the engine before removing any mount. Use a hydraulic floor jack with a wooden block under the oil sump, or an engine support bar across the engine bay — never allow the engine to hang unsupported on the remaining mounts while one is removed.
  2. Identify the specific mount to be replaced by inspecting all mounts for cracking, collapse, or oil saturation. Photograph the original mount orientation and cable routing in the area before disassembly — reinstallation is easier with reference images.
  3. Remove the mount-to-subframe bolts first, then the mount-to-engine bracket bolts. Raise the engine slightly with the jack to relieve load on the mount before attempting to extract it from the bay — some mounts require significant lift to clear the subframe.
  4. Compare the new mount to the old unit before installation — verify bracket geometry, bolt hole pattern, and overall dimensions. On hydraulic mounts, confirm the fluid chamber is intact and the unit is orientated correctly as marked.
  5. Start all bolts by hand before torquing any of them to ensure correct thread engagement. Torque mount bolts with the engine at its natural resting position, not while the jack is loaded — torquing under artificial load pre-stresses the rubber element and reduces service life.
  6. Install the new ENGINE MOUNT (MERCEDES-BENZ A2042402017), torque all fasteners to OEM specification (typically 60–100 Nm depending on position), remove the engine support, and road-test the vehicle — confirm the clunk and vibration are eliminated before closing the job.
Tools: hydraulic floor jack, wooden support block or engine support bar, torque wrench, socket set, breaker bar for seized subframe bolts, penetrating oil.
Frequently Asked Questions
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Should all engine mounts be replaced at the same time?
On vehicles above 120,000 km, replacing all mounts simultaneously is strongly recommended. A failed mount transfers its load to the remaining units, which are typically the same age and condition — sequential failures within a short period are common. ok.parts supplies individual mounts and full powertrain mount sets at wholesale MOQ from 14.13 USD per unit, making full-set replacement cost-effective at fleet scale.
Is any alignment or calibration required after replacing engine mounts?
No electronic calibration is required. However, on vehicles where the engine position affects driveshaft or gearbox linkage geometry, verify that gear selection is smooth and driveshaft angles are within specification after installation. On vehicles with electronic throttle, the idle may require a short relearn cycle — disconnect and reconnect the battery if rough idle persists after the first start.
How does the OEM-equivalent aftermarket unit compare to the genuine OEM part?
OEM-equivalent units in this catalogue replicate the current OEM design geometry and material specification. Quality is verified against OEM cross-reference data. When ordering in bulk, confirm with our team that the specification matches the latest OEM revision for your application.
Is white-label or custom packaging available for wholesale orders?
Yes. ok.parts works directly with the manufacturing facility and can accommodate neutral white-label packaging or fully branded packaging with your company logo, part numbers, and barcode. Minimum order quantities and lead times for custom packaging may differ from standard stock. Contact the team via the inquiry form to discuss your specific requirements.
Frequently Replaced Together
PartReason for Combined Replacement
Transmission Mount
OEM ref. varies by drivetrain		Engine and transmission mounts age at the same rate and share the powertrain load. A failed engine mount increases stress on the transmission mount — inspect and replace simultaneously to avoid a repeat visit.
Torque Rod / Pendulum Mount
Application-specific		Many transverse-engine vehicles use a torque rod or dog-bone mount to control longitudinal engine movement under acceleration. This component works in conjunction with the main mounts and should be inspected and replaced if worn at the same service interval.
Cam Cover / Rocker Cover Gasket
OEM ref. varies by engine		Oil leaks from the valve cover are the primary cause of rubber mount degradation. Replacing the mount without addressing an active oil leak will shorten the life of the new unit significantly — fix the source of contamination at the same time.