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Guaranteed Fitment
Always the correct part
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In-House Experts
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Added Value
Mounting, Balancing
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Fast Delivery
Estimated delivery: 7–15 business days
Overview
Replacement Power Stroke V8 (6.7L) crankshaft for Ford applications, referenced against OE BC3Z6303B. Built as a service part for engine overhaul, it replaces a worn or damaged original crankshaft rather than modifying the existing one.
Engine application
- Engine code: Power Stroke V8 (6.7L)
- Listed for: Ford
- OE references: BC3Z6303B
How this part fails
Because the crankshaft sits at the centre of the rotating assembly, wear shows up as noise and pressure loss rather than a sudden failure. A knocking bottom end, oil pressure that falls away when hot, glitter in the drain oil or a crank that no longer turns freely all point to journal damage. Once a journal is scored or oval, grinding undersize is the only repair and a replacement crank is often the simpler route.
Specifications
| Engine code | Power Stroke V8 (6.7L) |
| Listed applications | Ford |
| OE / cross-reference numbers | BC3Z6303B |
| Supplier part number | WS-258A |
| Crankshaft length | 708 |
| Warranty (as stated) | 1 year or 10,000 KM, whichever comes first |
| Condition | New |
| Minimum order | 1 piece |
Fitment checks before ordering
Verify fitment by engine code and OE number, not by model year or capacity. If your engine is a Power Stroke V8 (6.7L) variant but your OE number is absent from this list, treat the part as unconfirmed and ask before ordering.
Rebuild notes
Plan the rebuild around measurement, not assumption. Verify journal diameters and taper, confirm thrust clearance, and fit bearings sized to the crank actually supplied. Replace the rear main seal, clean the oil galleries and check the oil pump pickup while the sump is off. Torque figures and sequence should come from the engine manufacturer's manual for your engine code.
What is included
The listing covers the crankshaft only. Main and big-end bearings, rear seal, flywheel bolts and gasket sets are separate items and should be ordered to suit the rebuild.
Availability and warranty
The listing does not publish a stock quantity, so availability is confirmed by the supplier at order rather than shown here. The current Alibaba listing quotes delivery by Dec 28. The manufacturer states a 1 year or 10,000 KM, whichever comes first warranty on this listing.