Right Mounting (Cummins/Straight Frame)
Правое крепление (Cummins/Прямая рама)
Soporte Derecho (Cummins/Chasis Recto)
The Shacman Right Mounting DZ95259591312 is a critical structural engine mount designed to securely anchor Cummins engines within Shacman trucks featuring a straight frame configuration. This genuine OEM component, precisely identified by part number DZ95259591312, plays a fundamental role in managing engine vibration, torque reaction, and weight distribution. A robust and correctly specified mounting is essential for vehicle safety, driveline longevity, and driver comfort. For operators of Shacman trucks powered by Cummins engines, ensuring the integrity of every mounting point is non-negotiable for reliable performance.
Engineered from high-grade steel and specialized rubber compounds, this mounting absorbs and isolates vibrations, preventing their transfer to the chassis and cab. Its precise geometry ensures perfect alignment, maintaining correct driveline angles and preventing undue stress on engine and transmission components. Using the authentic Shacman part guarantees the durability and performance engineered for heavy-duty applications.
| Parameter | Specification / Value |
|---|---|
| OEM Part Number | DZ95259591312 |
| Product Name | Right Mounting (Cummins/Straight Frame) |
| Brand | Shacman |
| Compatible Engine | Cummins ISLe, ISM Series (Specific Models) |
| Frame Type | Straight Frame Chassis |
| Primary Material | High-Tensile Steel with Bonded Rubber Insulator |
| Mounting Type | Viscous or Rubber Shear Mount |
| Function | Engine Support, Vibration Damping, Torque Reaction Control |
| Weight Capacity | Engine-Specific, Designed for Heavy-Duty Loads |
The primary role of the Right Mounting DZ95259591312 is to securely hold the engine in its correct position. It must withstand the engine’s substantial weight and dynamic forces.
Equally important is its function as a vibration damper. Diesel engines generate significant oscillations and shocks from combustion and rotating assemblies.
The bonded rubber insulator within the mounting acts as a flexible buffer. It absorbs and dissipates these high-frequency vibrations before they reach the truck frame.
This isolation is crucial for cab comfort, component longevity, and reducing noise. It prevents metal fatigue in the chassis and protects sensitive electronic components.
During acceleration, the engine twists in the opposite direction of the crankshaft rotation. This is known as torque reaction.
The engine mounts, including the right mounting, are designed to control this movement. They allow a limited, controlled flex to prevent damage.
A failed mount allows excessive engine movement. This misaligns the transmission output shaft, causing wear on U-joints and the driveshaft.
The mounting’s steel bracket is fabricated from stamped or forged high-tensile steel. This provides the necessary strength to handle static and dynamic loads.
The rubber insulator is not ordinary rubber. It is a specialized compound engineered for high load-bearing capacity and excellent damping characteristics.
The bond between the metal and rubber is critical. It is created through a vulcanization process that ensures a permanent, high-strength connection.
This construction must resist degradation from engine oil, fuel, coolant, and extreme temperatures ranging from Arctic cold to under-hood heat.
The mounting is subjected to constant stress cycles. Its design incorporates radii and reinforcements to avoid stress concentration points that could lead to cracks.
The rubber compound is formulated to resist hardening (crystallization) over time. A hardened mount loses its damping ability and transmits more vibration.
Corrosion protection, such as painting or galvanizing, is applied to the metal parts. This is vital for longevity in harsh, salt-spray operating environments.
Part number DZ95259591312 is specifically designed for the interface between a Cummins engine block and a Shacman straight frame rail.
The bolt hole pattern, bracket shape, and overall height are unique to this application. Using an incorrect mount mispositions the engine.
Straight frame trucks have different chassis dynamics compared to dropped-frame models. The mount is engineered for the geometry and stress profiles of a straight frame.
Always verify the OEM number against your truck’s VIN or model code. Engine mounts are not universal, and incorrect fitment can cause severe damage.
An incorrect or failed right mount can cause the engine to sag or shift. This places strain on exhaust manifolds, coolant hoses, and wiring harnesses.
Misalignment can cause the fan to contact the shroud or the transmission linkage to bind. These issues lead to immediate operational problems.
Excessive movement can fracture other engine components or the mount bracket itself. This results in a cascading and costly repair scenario.
Replacing an engine mount requires proper support of the engine. Use a transmission jack or an engine support bar to safely hold the engine’s weight.
Never attempt to replace only one mount on an aged set. Mounts wear evenly, and a new mount beside a worn one will be overstressed and fail quickly.
Clean the mating surfaces on the engine block and frame bracket. Remove any rust or debris to ensure solid metal-to-metal contact.
Install the new DZ95259591312 mounting and hand-tighten all fasteners. Follow the manufacturer’s specified torque sequence and values precisely.
After installation, start the engine and allow it to idle. Observe the engine for excessive movement when shifting between Drive and Reverse (with brakes applied).
Check for any new contact noises or vibrations. Re-torque the fasteners after the first 500 km of operation, as settling may occur.
Ensure the engine sits level and that all ancillary components (hoses, wires) have proper slack and are not under tension.
Increased Vibration: A pronounced increase in cab vibration, especially at idle, is a classic sign. The steering wheel, floor, and seat may shake noticeably.
Clunking Noises: A heavy clunk or thud during acceleration, deceleration, or when engaging gear indicates excessive engine movement.
Visual Damage: Inspect the mount. Look for cracked or separated rubber, oil saturation (which degrades rubber), or a sagging appearance.
Misaligned Components: Visible misalignment of the engine, such as the fan being off-center in the shroud, points to a failed mount.
With the engine off and the vehicle securely braked, open the hood. Have an assistant gently rev the engine while you watch for excessive lift or shift.
Use a pry bar (carefully) to check for excessive movement between the mount’s bracket and insulator. There should be very little to no free play.
Check for contact marks where the engine or components may be hitting the frame or other parts due to movement.
Aftermarket mounts often compromise on material quality. The rubber may be softer or harder than specification, leading to poor damping or short life.
The steel used may be thinner or of a lower grade, risking bracket fatigue or bending under heavy load. The corrosion protection is often inferior.
Dimensional tolerances are critical. A non-genuine mount may have slightly misaligned bolt holes, causing installation difficulties and improper engine alignment.
The genuine DZ95259591312 is manufactured to Shacman’s exacting standards. It ensures the engine is held in the precisely designed position for optimal performance.
A failed aftermarket mount can cause collateral damage. The resulting engine movement can break exhaust manifolds, turbocharger piping, and sensors.
Increased vibration accelerates wear on every component in the vehicle, from dashboard electronics to suspension bushings.
The labor to replace a mount is significant. Doing the job twice due to part failure is far more expensive than using a genuine part from the start.
A secure engine mount is a safety-critical component. Catastrophic mount failure could allow the engine to shift violently, potentially affecting vehicle control.
Proper vibration control reduces driver fatigue, which is a key factor in long-haul safety. A smooth cab allows for better concentration and comfort.
Maintaining correct driveline angles ensures efficient power transfer and prevents premature failure of the driveshaft, differential, and axle components.
Using genuine mounts like DZ95259591312 is part of a holistic approach to vehicle maintenance that prioritizes safety, reliability, and total cost of ownership.
By effectively isolating vibrations, the mount protects the entire chassis from stress fractures and loose fasteners. This extends the truck’s operational life.
A stable engine reduces wear on its own internal components, such as crankshaft bearings and accessory drives, by minimizing off-axis loads.
For fleet managers, predictable maintenance intervals with OEM parts lead to better scheduling, lower unexpected downtime, and higher asset utilization.
Inspect all engine mounts during every major service (e.g., oil change intervals). Look for the visual and physical signs of degradation mentioned earlier.
Pay attention to any sudden change in vibration levels or new noises. These are early warnings that should prompt an immediate mount inspection.
When replacing mounts, always replace them in complete sets (left, right, and rear if applicable). This ensures balanced support and damping.
Keep a record of mount replacement. While they are long-lasting components, knowing their service age helps in predictive maintenance planning.
Trucks operating in extreme temperatures or off-road conditions may experience accelerated mount wear. Increase inspection frequency in these cases.
Avoid operating with persistent engine misfires. The uneven firing causes abnormal vibration patterns that can overstress and damage engine mounts.
Ensure the engine is properly tuned. An engine running rough due to fuel or ignition issues will generate more harmful vibrations.
The Shacman Right Mounting DZ95259591312 is a fundamental component that ensures the stable, quiet, and reliable operation of your Cummins-powered truck.
Investing in the genuine OEM part is an investment in vehicle integrity, driver comfort, and long-term operational costs. It guarantees exact fit and proven performance.
Do not overlook the importance of this critical support component. For all engine mount replacements, insist on the genuine Shacman part number DZ95259591312.
Pair this high-quality mounting with professional installation and regular chassis inspections. This comprehensive approach will ensure your Shacman truck delivers the dependable, vibration-free performance essential for success in demanding transport operations.
