Product Introduction: A forged steel crankshaft with precision-ground journals and counterweights, surface-hardened for maximum durability. It features a gear-driven front end and drilled oil passages for lubrication.

Function: Converts the linear motion of the pistons into rotational torque, which drives the vehicle’s transmission and accessories. The counterweights balance the reciprocating forces of the pistons, reducing vibration and engine wear.

Engine Crankshaft 5446857 Cummins – Premium OEM-Grade Replacement for Heavy-Duty Diesel Engines

When your fleet depends on uninterrupted power delivery, the crankshaft sitting at the heart of your Cummins engine cannot afford to be anything less than perfect. The Engine Crankshaft 5446857 Cummins from METTLEAD Truck Parts is precision-forged to meet exact OEM dimensional and metallurgical standards, delivering the durability and rotational balance that keeps your heavy-duty diesel engines running at peak torque — mile after mile, load after load.

Sourced directly from our quality-certified production facility in China and backed by rigorous multi-stage inspection, this crankshaft eliminates the uncertainty of aftermarket sourcing while keeping your procurement costs firmly under control.

Key Features and Benefits of Crankshaft 5446857

Engineered for Endurance

• OEM-Equivalent Forged Steel Construction: Manufactured from high-carbon alloy steel (42CrMo / 4340 equivalent) through a closed-die forging process, this crankshaft delivers superior fatigue resistance and tensile strength compared to cast alternatives.
• Precision-Ground Journals: Main and rod journals are ground to micro-finish tolerances (Ra ≤ 0.4μm), ensuring optimal oil film formation and minimized bearing wear throughout the engine’s service life.
• Dynamically Balanced: Every unit undergoes computerized dynamic balancing to within 15 g·cm, reducing harmful vibration that accelerates bearing degradation and crankcase stress.
• Induction-Hardened Fillets: Critical fillet radii receive localized induction hardening to 52-58 HRC, dramatically improving resistance to bending fatigue at the highest-stress transition zones.
• Anti-Corrosion Surface Treatment: A protective phosphate coating shields the crankshaft during storage and shipping, ensuring it arrives ready for installation without surface oxidation.

Procurement Advantages

• Factory-Direct Pricing: By sourcing straight from our manufacturing base, you bypass distributor markups and gain access to competitive volume pricing structures.
• Strict Quality Control: Each crankshaft passes through dimensional CMM inspection, hardness testing, magnetic particle inspection (MPI), and dynamic balancing verification before release.
• Reliable Lead Times: Stocked inventory and streamlined production scheduling mean your orders ship faster — typically within 3–7 business days for standard quantities.
• Custom Packaging & White-Label Options: Whether you need neutral packaging for your own brand or custom labeling for retail distribution, we accommodate your specifications without minimum order complications.

Technical Specifications – Engine Crankshaft 5446857 Cummins

Application Scenarios – Where Crankshaft 5446857 Performs

The Engine Crankshaft 5446857 Cummins serves as a direct-fit replacement across a range of commercial and industrial applications powered by Cummins ISF-series diesel engines:

• Light & Medium Commercial Vehicles: Foton Aumark, Foton Ollin, and GAZ Next trucks equipped with Cummins ISF 2.8 / 3.8 powertrains rely on this crankshaft for daily urban delivery and regional hauling duties.
• Agricultural Machinery: Tractors and harvesting equipment running Cummins ISF engines in high-load, variable-RPM field operations benefit from the crankshaft’s fatigue-resistant forged construction.
• Construction Equipment: Skid-steer loaders, mini excavators, and generator sets using ISF-series engines demand the vibration-free rotation that a precision-balanced crankshaft provides.
• Bus & Passenger Transport Fleets: City buses and minibuses powered by Cummins ISF platforms count on the longevity and dimensional accuracy of this crankshaft to maintain service schedules without unplanned downtime.

Whether your engines face the sustained highway loads of long-distance freight or the punishing stop-start cycles of urban delivery, this crankshaft is built to absorb every combustion pulse and convert it into smooth, reliable rotational energy.

OEM/ODM Capability

METTLEAD Truck Parts understands that procurement managers need more than just a part — you need a supply chain partner who adapts to your business requirements:

• White-Label Supply: Receive crankshafts in neutral packaging ready for integration into your own parts brand, complete with your labeling and documentation.
• Custom Packaging: Branded boxes, protective crating for sea freight, or retail-ready cartons — we configure packaging to match your distribution channel.
• Volume Production Scheduling: Planning a large fleet overhaul or building regional inventory? Our production line accommodates batch scheduling with guaranteed delivery windows.
• Technical Collaboration: Our engineering team supports dimensional verification requests, material certifications, and cross-reference confirmation to ensure every crankshaft integrates seamlessly into your supply program.

We welcome procurement teams and distributors to visit our facility in China for on-site quality audits and production inspections. Seeing our process firsthand builds the confidence that no catalog alone can deliver.

Customer Case Study: Fleet Overhaul Success with Crankshaft 5446857

A regional logistics operator in Southeast Asia managing a fleet of 45 Foton Aumark trucks (Cummins ISF 3.8L) faced escalating engine rebuilding costs. Their previous aftermarket crankshaft supplier delivered inconsistent journal tolerances, resulting in premature bearing failures averaging every 60,000 km — well below the expected service interval.

After switching to the Engine Crankshaft 5446857 Cummins supplied by METTLEAD Truck Parts, the fleet recorded the following results over a 14-month evaluation period:

• Zero premature bearing failures across all 18 engines rebuilt with METTLEAD crankshafts
• Bearing service life extended beyond 180,000 km — a 3x improvement over the previous supplier
• Per-unit procurement cost reduced by 22% compared to their former regional distributor pricing
• Average lead time of 5 days from order confirmation to warehouse delivery (CIF basis)

The fleet’s maintenance director noted that the consistent journal finish quality and accurate dynamic balancing eliminated the vibration complaints that previously plagued their rebuilt engines. Today, this operator sources all Cummins crankshaft replacements exclusively through METTLEAD.

Frequently Asked Questions – Engine Crankshaft 5446857 Cummins

What engines does crankshaft 5446857 fit?

The Engine Crankshaft 5446857 is designed as a direct replacement for Cummins ISF 2.8L and ISF 3.8L diesel engines. These powertrains are widely used in Foton commercial trucks, GAZ vehicles, and various industrial and agricultural machinery. Always cross-reference the part number with your engine serial number to confirm exact fitment.

Is this crankshaft forged or cast?

This is a fully forged crankshaft manufactured from 42CrMo4 alloy steel. Forging produces a continuous grain flow that follows the contour of the crankshaft, delivering significantly higher fatigue strength and impact resistance than cast iron or cast steel alternatives — essential for engines operating under sustained heavy loads.

What quality inspections does each crankshaft undergo?

Every Engine Crankshaft 5446857 passes through a multi-stage quality gate: dimensional verification via coordinate measuring machine (CMM), magnetic particle inspection (MPI) for surface and sub-surface crack detection, Rockwell hardness testing on journals and fillets, and computerized dynamic balancing. Only units meeting all parameters receive clearance for shipping.

Can I order crankshaft 5446857 in undersize or oversize journal dimensions?

Yes. Standard journal dimensions ship from stock inventory. Undersize options (typically -0.25mm, -0.50mm, -0.75mm, -1.00mm) for re-machined engine blocks are available on request. Please specify your required journal dimensions when submitting your inquiry so we can confirm availability and lead time.

How is the crankshaft packaged for international shipping?

Each crankshaft is coated with anti-corrosion preservative, individually wrapped in VCI (Vapor Corrosion Inhibitor) film, and secured in a reinforced wooden crate or heavy-duty carton designed to withstand ocean freight handling. Custom branded packaging is available for distributors and resellers.

What warranty coverage applies to this crankshaft?

The Engine Crankshaft 5446857 Cummins carries a 12-month or 100,000 km warranty (whichever comes first) covering manufacturing defects in material and workmanship. Warranty claims are supported with full traceability documentation back to the production batch.

Secure Your Supply of Engine Crankshaft 5446857 Cummins – Request a Quote Today

Your engines deserve a crankshaft that matches OEM precision without the OEM price tag. Whether you need a single unit for an urgent rebuild or ongoing volume supply for fleet maintenance programs, METTLEAD Truck Parts delivers the quality, pricing, and reliability your procurement operation demands.

Take the next step:

• Tell us your required quantity, preferred journal size (standard/undersize), and delivery destination
• Receive a detailed quotation with FOB/CIF pricing within 24 hours
• Benefit from factory-direct sourcing with full quality documentation

👉 Contact Us Now to Request Your Crankshaft 5446857 Quotation

Browse our complete range of Cummins engine components — from pistons and cylinder liners to camshafts and bearing sets — all engineered to the same exacting standards:

👉 View All Cummins Engine Parts from METTLEAD

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