For Chevrolet B12 Forged/casting B12 B12d1 Engine Parts Crankshaft 9002796 For Gm Chevrolet M300 1.3l – OEM 9002796

Product Overview: This crankshaft is a precision-manufactured replacement part for Chevrolet B12 engines, supplied ready for installation. Every unit is machined to factory dimensions so it can replace a fatigued, scored or bent original crankshaft as a straightforward bolt-in component.

Key Features: The crankshaft is CNC-machined on precision centres to hold main and rod journal diameters, fillet radii, stroke and end-float within original equipment limits. The journals are ground, hardened and micro-polished so the bearing shells receive a consistent oil film and run quietly from the first start. Nitriding and high-frequency quenching harden the bearing surfaces, extending service life in demanding duty cycles. Consistent production tolerances mean the part can be fitted without the trial-and-error often associated with low-grade replacements.

Vehicle Compatibility: It fits Chevrolet models including Automotive Engine Internal Rebuild Parts. The same engine family was produced in more than one revision, so verify the engine code and original part number against the removed component before ordering. Early and late builds of the same engine can use different revisions, so identification from the original component is essential.

Specifications: Key specifications: engine code B12; material High Strength Nodular Cast Iron; size STD; condition New; warranty 12 Months, 12 Months. Further specification details: main journal diameter Standard Size Matches OEM. It is supplied for replacement and repair applications in standard specification.

OEM / Reference Numbers: No alternative reference numbers are published for this listing; identification should be made from the engine code and vehicle application details.

Applications: Applications include complete engine rebuilds, preventative bottom-end renewal and repair of units damaged by lubrication failure. Holding a standard-size unit in stock helps workshops complete rebuilds without waiting for machining or exchange parts.

Benefits / Replacement Information: Fitting this part corrects bottom-end noise and vibration, restores oil pressure and returns the engine to reliable service. Because the shaft is supplied in standard size and ready to fit, it avoids the lead time and expense of re-grinding an original unit. It offers a practical alternative to a main-dealer part at a lower cost without departing from original dimensions.

Installation or Fitment Notes: Before fitting, confirm the part number, measure the main and rod journals, and check the block line bore and bearing tunnel condition. Fit new bearing shells, verify clearances against factory limits, and torque the caps in the specified order. Verify end-float, prime the oil system before the first start, and follow a sensible running-in schedule with an early oil and filter change. Cleanliness during assembly is critical; keep machined surfaces free of swarf, grit and moisture at all times.