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Precision and durability in a commercial truck’s engine are achieved through the exact alignment and robust mounting of its internal components. As an authoritative source for heavy-duty Foton truck parts, we present the crucial Left Lifter Bracket Assembly, identified by the official OEM part number 1B24961400002. This assembly serves as the foundational mounting point for the hydraulic lifter mechanism or related accessories on the left side of specific FOTON diesel engines. The precise engineering of bracket 1B24961400002 ensures critical components remain in perfect alignment, managing valve train stresses and vibrations to safeguard engine longevity, performance, and operational smoothness under demanding loads.
Left Lifter Bracket Assy (English)
Кронштейн толкателя левый (Russian)
Conjunto del Soporte del Levantador Izquierdo (Spanish)
The Left Lifter Bracket Assembly, part number 1B24961400002, is a precision-machined structural component that mounts directly to the engine block or cylinder head. Its primary function is to provide a rigid and accurately aligned housing for the engine’s hydraulic lifters (also called tappets) on the left bank of the engine.
This bracket ensures that each lifter maintains the exact perpendicular alignment required with the camshaft lobe and pushrod (or direct valve stem). This alignment is non-negotiable for proper valve timing, lift, and duration. Any deviation caused by a faulty or worn bracket, such as part 1B24961400002, can lead to incorrect valve clearance, reduced engine power, increased fuel consumption, and accelerated wear on the camshaft, lifters, and valves.
Furthermore, the assembly often incorporates oil passages that feed pressurized engine oil to the lifters, enabling their hydraulic function to automatically maintain zero valve lash. The integrity of these passages within the bracket is vital for consistent lubrication.
The 1B24961400002 assembly is a product of advanced foundry and machining processes. It begins as a precise casting in a durable iron alloy, chosen for its excellent vibration-damping properties and thermal stability.
CNC machines then finish critical surfaces, drilling and honing the lifter bores to exact diameters and surface finishes. The mating surface that contacts the engine block is machined to a specific flatness to ensure a perfect seal, often with an integrated gasket or sealant channel.
Internal oil passages are carefully drilled and deburred to prevent contamination. The entire component may be treated with a anti-corrosion coating or painted to withstand the harsh environment of the engine bay. This meticulous process guarantees that every bracket bearing the part number 1B24961400002 performs identically.
A compromised Left Lifter Bracket Assembly, part number 1B24961400002, presents clear warning signs. The most common symptom is a persistent tapping or clicking noise from the left side of the engine that changes with RPM but is not cured by valve adjustment.
Visible oil leaks originating from the bracket-to-block interface indicate a failed gasket or a warped bracket sealing surface. Performance issues like power loss, rough idle, or excessive oil consumption can also stem from lifter misalignment caused by a faulty bracket.
Catastrophic failure, though rare, can occur if a crack propagates, potentially causing a lifter to seize or break, leading to severe internal engine damage. Regular inspection, especially during top-end engine service, is crucial to identify issues with the 1B24961400002 bracket early.
The following table details the essential technical parameters for the genuine FOTON Left Lifter Bracket Assembly. This data is critical for parts identification and engineering validation.
| Parameter | Specification | Details / Notes |
|---|---|---|
| OEM Part Number | 1B24961400002 | Genuine FOTON Identification |
| Product Name | Left Lifter Bracket Assy | Mounting Bracket Assembly |
| Brand | FOTON | Original Equipment Manufacturer |
| Primary Material | High-Strength Cast Iron | Alloyed for durability & stability |
| Mounting Location | Left Side of Engine Block/Head | Complements right-side bracket |
| Function | Lifter Housing & Alignment | May include oil passages |
| Surface Treatment | Machined, Painted/Coated | Corrosion and wear resistance |
| Compatibility | Specific FOTON Engine Families | Verify with engine serial number |
Installing the Left Lifter Bracket Assembly, part number 1B24961400002, is a precision task integral to engine rebuilding or major valve train service. It requires careful cleaning of all mating surfaces on the engine block to ensure a perfect seal.
The new bracket, 1B24961400002, must be positioned using alignment dowels (if present). A new gasket or the manufacturer-specified sealant must be applied. The mounting bolts must be installed and tightened in the exact criss-cross sequence outlined in the service manual, progressing to the final torque specification in multiple stages.
This sequential torquing prevents warping the bracket and ensures even clamping force across the entire sealing surface, which is critical for preventing oil leaks and maintaining lifter bore alignment. Under-torquing can cause leaks; over-torquing can crack the bracket or distort the lifter bores.
Proactive checks of the 1B24961400002 assembly can prevent extensive engine damage and costly downtime.
Visual & Tactile Inspection: During cylinder head removal or valve cover service, inspect the bracket for hairline cracks, particularly around bolt holes and lifter bores. Feel for irregularities on the mating surface. Check for signs of oil “weeping” around the edges.
Bore Gauge Measurement: In cases of suspected lifter wear, a machinist may measure the lifter bores in the bracket for out-of-roundness or excessive diameter wear, which can cause lifter “rock” and noise.
Listening for Diagnostics: A mechanic’s stethoscope can help isolate a persistent lifter tap to a specific area. If the noise persists after lifter replacement, the bracket (part 1B24961400002) itself should be suspected.
Preventive Replacement Strategy: During any major engine overhaul involving the cylinder head or camshaft, it is prudent to replace both left and right lifter bracket assemblies. Their cost is minimal compared to the labor of a future teardown caused by a bracket failure.
The dimensional accuracy and material integrity of the 1B24961400002 bracket are paramount. Non-genuine aftermarket copies may use inferior casting techniques or alloys that can warp under heat, leading to misalignment.
Subtle differences in the machining of oil passages can restrict flow, causing lifter starvation and failure. The genuine FOTON part is validated through rigorous testing to ensure it meets all specifications for thermal expansion, stress fatigue, and dimensional stability.
Using the authentic 1B24961400002 assembly guarantees that the engine’s valve train operates as designed, maintaining power output, fuel efficiency, and emission compliance. It is a cornerstone component for a reliable rebuild.
The 1B24961400002 assembly is not universal; it is engineered for specific FOTON engine models and displacements. Using the correct left-side bracket is essential, as it is a mirror-image counterpart to the right-side bracket and not interchangeable.
Compatibility should always be confirmed using the engine’s serial number or the vehicle’s VIN. Even within the same model year, mid-production engineering changes can result in bracket modifications. Installing the incorrect bracket will lead to misaligned components, oil leaks, and immediate operational failure.
Consult official FOTON documentation or a trusted parts specialist to ensure part 1B24961400002 is the exact match for your engine’s configuration and production date.
The Left Lifter Bracket Assembly, OEM part 1B24961400002, is far more than a simple mounting piece; it is a precision-engineered foundation for your FOTON truck’s valve train. Its role in ensuring accurate component alignment and reliable lubrication is fundamental to engine performance and durability.
Choosing the genuine FOTON part is an investment in guaranteed quality, fit, and function. It protects the significant investment of an engine repair, ensuring thousands of hours of reliable service under the most demanding conditions.
For engine rebuilds and critical repairs, never compromise on foundational components. Insist on the authentic 1B24961400002 Left Lifter Bracket Assembly. Explore our complete catalog of genuine FOTON engine parts to build a repair that lasts, ensuring your fleet operates with maximum efficiency and minimum downtime.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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