Mercedes-Benz Actros Anti-Roll Bar Bushing OEM 9413260050: Technical Guide & Sourcing Reference

What This Component Actually Does

The anti-roll bar bushing — sometimes called a stabilizer bar bush or sway bar mount — is one of those parts that tends to get overlooked during routine maintenance. It does not move in an obvious way, there is no fluid to check, and it rarely generates a dramatic failure. What it does do is quietly absorb continuous torsional and rotational loads across the full operating life of the vehicle.

On the Mercedes-Benz Actros, the anti-roll bar is a transversely mounted torsion bar that links the left and right sides of the axle suspension. When one wheel rises over an obstacle or the truck body begins to lean laterally in a corner, the bar twists and transfers a corrective force to the opposite side. This torsional action is what keeps the vehicle from rolling excessively under load — a critical handling characteristic on a fully laden combination vehicle pushing 40 tonnes through a roundabout or an off-camber road in wet conditions.

The bushing at OEM reference 9413260050 mounts this bar to the vehicle's chassis subframe. Its job is to allow the bar to rotate freely within a controlled elastic range while preventing metal-to-metal contact. It also acts as a noise and vibration isolator: without it, every input from the road surface would transmit directly into the frame as audible noise and structural fatigue.

On long-haul trucks covering 150,000–200,000 km per year under consistent heavy loading, these bushings are not a lifetime component. They are a maintenance item — and how they are specified and sourced matters to both ride quality and fleet operating costs.

Fitment & Application — Which Mercedes-Benz Models Use OEM 9413260050

OEM part number 9413260050 (also referenced as 941 326 00 50) is a rear-axle anti-roll bar bushing applied across multiple Mercedes-Benz commercial vehicle platforms:

Vehicle Model	Generation / Notes
Mercedes-Benz Actros	MP1, MP2, MP3
Mercedes-Benz Atego	All variants
Mercedes-Benz Axor	All variants
Mercedes-Benz Econic	All variants
Evobus (coach/bus)	OF, OH series

The wide fitment range is deliberate — Daimler standardized certain suspension components across its commercial vehicle lineup to reduce parts proliferation. For fleet operators running mixed Actros and Axor units, this is a logistical convenience: one part number covers a significant portion of the fleet's suspension bushing requirement.

Note: While this OEM number has remained consistent across these platforms, always verify against the vehicle's VIN or parts catalog when ordering for pre-MP2 units, as early production runs occasionally used a slightly different bracket geometry.

Technical Specifications & Dimensions

Parameter	Specification
Inner Diameter (ID)	81 mm
Outer Diameter (OD)	109 mm
Length	67 mm
Fitting Position	Rear axle, both sides
Weight (per piece)	approx. 0.894 kg
Construction	Bonded rubber-to-metal (vulcanized)
Emission Compatibility	Euro 3 through Euro 6
Part Number	9413260050 / 941 326 00 50

The bonded rubber-to-metal construction is worth noting. Unlike a simple pressed-in rubber sleeve, a bonded bushing uses a vulcanization process that chemically bonds the elastomer to both the inner metal sleeve and the outer housing during manufacture. This creates a single-piece assembly with no risk of the rubber core spinning or dislodging within the housing — a failure mode seen more frequently on lower-cost unbonded designs.

IMAGE: Dimensional drawing or annotated cutaway showing ID, OD, and length. Alt text: "Cross-section of OEM 9413260050 showing 81mm inner diameter, 109mm outer diameter and 67mm length"

Cross-Reference & Interchange Part Numbers

For sourcing comparison, the following aftermarket part numbers interchange directly with OEM 9413260050:

Brand	Part Number
Mercedes-Benz / OEM	941 326 00 50 / 9413260050
Febi Bilstein	23473
Diesel Technic	4.80443 / 480443
Meyle	036 010 0009
PE Automotive	013.326-00A

When sourcing from a factory-direct manufacturer rather than a branded aftermarket supplier, these cross-references are used to confirm dimensional and material compliance. Any credible manufacturer should be able to provide a dimensional check report against at least one of the branded references above.

Internal Link: Link to your product pages for other Actros suspension components: torque rod bushings, V-stay arms, leaf spring bushings, engine mounts.

Material Composition — Why Rubber Compound Specification Matters

The rubber compound used in anti-roll bar bushings for heavy commercial vehicles is not a generic formulation. The operational demands are specific:

• Sustained torsional deflection: The bushing rotates cyclically under every steering input and road surface variation. Unlike a static mount, it never fully rests.

• Temperature range: Operating environments range from −30°C in northern European winters to well above 80°C near hot brake components in summer.

• Chemical exposure: Road oils, cleaning solvents, and fuel spillage are a normal part of the under-chassis environment.

• Load magnitude: With a rear axle load of up to 13 tonnes on fully laden Actros configurations, the stabilizer bar transmits lateral forces that dwarf what is seen in passenger car applications.

The compound used in OEM-specification and quality aftermarket replacements is typically natural rubber (NR) or a blended NR/SBR formulation, selected for its combination of high elasticity, tear resistance, and fatigue life under cyclic loading. Some manufacturers use a CR (Chloroprene/Neoprene) blend for improved ozone and weathering resistance — a relevant consideration for trucks operating in coastal or high-UV environments.

What distinguishes a well-specified bushing from an underperforming copy is primarily the rubber hardness (Shore A) and the bond quality between the rubber and the steel sleeves. A bushing that is too hard will transmit excessive road noise and vibration; too soft, and it deforms permanently under sustained load, losing its ability to control bar position.

Common Failure Modes — Diagnosing a Worn Anti-Roll Bar Bushing on the Actros

Bushing failures on heavy trucks rarely happen suddenly. There is usually a progression, and catching it early prevents consequential damage to the stabilizer bar itself and the mounting brackets.

Stage 1 — Initial Degradation (0–30% wear)

The rubber begins to harden through oxidation or soften through heat cycling. No audible symptoms yet, but a bench check would show visible crazing or micro-cracking on the outer surface. Fuel or oil contamination can accelerate this stage significantly.

Stage 2 — Loss of Radial Stiffness (30–60% wear)

The stabilizer bar begins to move within the bushing housing. On the Actros, this first presents as a low-frequency knock or thud when transitioning from a loaded to an unloaded state — for example, when leaving a weighbridge or when one wheel drops into a pothole. The noise is typically localised to the rear axle area and is more pronounced on cold starts.

Stage 3 — Structural Separation (60–100% wear)

The bond between rubber and metal begins to break down, or the rubber tears. At this stage, the bushing may rotate rather than deflect, causing the anti-roll bar to shift laterally within its mounting bracket. Metal-to-metal contact generates a harder clunking or grinding noise. Vehicle handling becomes noticeably asymmetric under loaded cornering.

Field Diagnostic Procedure

1. With the truck on level ground (unladen), physically grip the stabilizer bar near each bushing location and attempt to move it laterally and rotationally by hand.

2. Any perceptible free movement indicates the bushing has lost its structural integrity.

3. Visual inspection under the vehicle: look for rubber extruded out from the bracket clamp face, surface cracking, or oil staining that has caused rubber swelling.

IMAGE: Side-by-side comparison: new bushing vs. worn bushing showing cracking and material loss. Alt text: "New vs worn Mercedes Actros anti-roll bar bushing 9413260050 showing rubber degradation"

Installation Notes — Getting It Right the First Time

Replacing anti-roll bar bushings on the Actros is a straightforward job, but there are a few details that separate a lasting repair from one that fails prematurely.

1. Clamp torque matters more than most technicians realise. The mounting bracket clamps should be tightened with the axle loaded to its normal ride height — i.e., the truck sitting on its wheels under its own weight, not suspended on a lift. Tightening on a lift pre-stresses the bushing in a deflected position; once the truck is lowered, the rubber is immediately under residual torque, which shortens fatigue life considerably.

2. Do not lubricate the rubber-to-metal interface. A bonded bushing should be installed dry. Petroleum-based greases attack rubber compounds and will cause premature degradation. The only acceptable lubricant, if needed to ease installation, is a small amount of water-based soap solution — which dissipates after installation without affecting the rubber.

3. Replace in pairs. Even if only one side shows visible wear, replace both sides simultaneously. The two bushings age at roughly the same rate. Fitting a new bushing against an aged one creates an asymmetric stiffness condition that can affect the vehicle's straight-line tracking under load.

4. Check the mounting brackets. A failed bushing often allows the stabilizer bar to contact the bracket directly. Inspect the bracket bore for wear, elongation, or deformation before fitting new bushings. A worn bracket will cause premature failure of the replacement part regardless of its specification.

Service Life — What Affects Bushing Longevity on Long-Haul Actros Units

Under normal long-haul highway conditions, a correctly specified anti-roll bar bushing on the Actros can be expected to cover 300,000–400,000 km before requiring replacement. In practice, several factors significantly shorten this interval:

• Mixed-duty cycles: Urban distribution routes with frequent tight corners and pothole exposure generate far more bushing cycles per kilometre than motorway running. A truck doing urban distribution may need replacement at half the mileage of a line-haul unit.

• Chronic overloading: Operating consistently above the rated rear axle load accelerates torsional stress on the bar and compressive stress on the bushing.

• Contamination: Oil leaks from differential seals, brake fluid, or power steering fluid will attack rubber compounds and cause premature hardening or swelling.

• Cold climate operation: Sustained operation at sub-zero temperatures without a warm-up period causes rubber to operate in its hardened, brittle state. Bushings in Nordic or Central Asian fleets typically show earlier cracking than those in temperate climates.

• Road quality: Irregular surfaces — cobblestones, unpaved construction access roads, potholed port approach roads — generate higher peak loads on the stabilizer system.

For fleet maintenance managers, the practical recommendation is to include anti-roll bar bushings in the scope of a 500,000 km or 3-year preventive maintenance inspection, adjusting the interval downward for vehicles in the duty cycles described above.

Sourcing Aftermarket vs. OEM — A Procurement Perspective

The OEM replacement price for 9413260050 through Mercedes-Benz dealer channels is substantially higher than equivalent aftermarket parts. The question for a fleet procurement manager or parts trader is: what level of aftermarket specification is appropriate? The aftermarket for this part is broadly tiered into three categories.

Tier 1 — Branded European Aftermarket

Products from suppliers such as Febi Bilstein, Meyle, and Diesel Technic are produced to specifications that match or closely follow OEM dimensional and material standards. Reliable choice for fleets requiring warranty compliance, though distribution margin is reflected in the price.

Tier 2 — Factory-Direct from IATF 16949-Certified Manufacturers

Components produced by manufacturers certified under the automotive quality management standard IATF 16949. These factories supply their own branded product and often act as sub-suppliers for European aftermarket brands. When working directly with the factory rather than through a distributor chain, the cost advantage is significant — typically 30–50% below branded aftermarket pricing — with no reduction in specification quality.

Tier 3 — Uncertified Low-Cost Imports

Parts of indeterminate specification, often with no dimensional traceability and rubber compounds selected on raw material cost rather than performance. These are identifiable by the absence of certification documentation, an unwillingness to provide material or dimensional compliance data, and pricing that is implausibly low even by factory-direct standards. The total cost of ownership for Tier 3 parts, accounting for premature replacement and vehicle downtime, typically exceeds Tier 1 pricing when calculated over a 24-month period.

Frequently Asked Questions

Q: Is OEM 9413260050 specific to the Actros, or does it fit other Mercedes-Benz trucks?

A: This bushing fits a broad range of Mercedes-Benz commercial vehicles, including the Actros (MP1/MP2/MP3), Atego, Axor, and Econic, as well as Evobus coach applications (OF and OH series). Always cross-check against your specific vehicle's VIN and model year before ordering.

Q: What are the exact dimensions of the 9413260050 bushing?

A: Inner diameter: 81 mm. Outer diameter: 109 mm. Length: 67 mm. Weight approximately 0.894 kg per piece. It is a bonded rubber-to-metal construction, fitted on the rear axle on both left and right sides.

Q: What aftermarket part numbers interchange with OEM 9413260050?

A: Confirmed cross-references include Febi Bilstein 23473, Diesel Technic 4.80443, Meyle 036 010 0009, and PE Automotive 013.326-00A. These share identical dimensions and are interchangeable.

Q: How do I know if the anti-roll bar bushings on my Actros need replacing?

A: Common indicators include a knocking or clunking sound from the rear axle when transitioning over surface irregularities, increased body roll during loaded cornering, or visible rubber cracking and extrusion when inspected under the vehicle. Free lateral movement of the stabilizer bar when gripped by hand is a definitive indicator of bushing failure.

Q: How long should these bushings last under normal operating conditions?

A: On long-haul highway duty, a correctly specified bushing typically covers 300,000–400,000 km. Mixed urban/highway or construction site duty will shorten this to 150,000–250,000 km. Include anti-roll bar bushings in a 500,000 km or 3-year preventive inspection schedule as a minimum.

Q: Can I order factory-direct from Hebei Huami in smaller quantities for trial purposes?

A: Yes. We work with parts traders, independent distributors, and fleet operators at various order volumes. Sample orders for fitment and quality verification are available. For volume pricing on pallet or container quantities, please use the inquiry form below.

Request a Factory-Direct Quote OEM 9413260050 and Full Range of Mercedes-Benz Actros Suspension Bushings Hebei Huami New Material Technology Co., Ltd. IATF 16949 | ISO 9001 | TUV | AEO Certified | 30+ Years Manufacturing Experience [ Contact Us / Submit Inquiry ]

Internal Links (add in WordPress): 1) Mercedes-Benz Actros Torque Rod Bushing Guide | 2) Volvo FH Leaf Spring Bushing OEM Reference | 3) IATF 16949 Certified Manufacturer — About Us | 4) Full Product Range — Heavy Truck Suspension Bushings

External Links (for E-E-A-T credibility): 1) Mercedes-Benz Trucks official parts portal (mercedes-benz-trucks.com) | 2) IATF 16949 standard overview (iatfglobaloversight.org) | 3) Febi Bilstein 23473 product page (as cross-reference source)

Article prepared by the technical team at Hebei Huami New Material Technology Co., Ltd. — manufacturer of OEM-specification rubber suspension components for European heavy commercial vehicles.