This crankshaft is designed for Toyota models equipped with the 1SZ engine—commonly sold for Toyota Yaris, Echo, and Vitz. Always verify fitment by confirming your engine code (1SZ/1SZ-FE) and VIN with the seller or your service manual.
The listing describes an aftermarket 1SZ crankshaft built to meet application requirements. If you require an OEM-branded part, confirm with the supplier or request the OEM part number before purchase.
The crankshaft is manufactured from high‑grade, heat‑treated steel designed for durability and wear resistance. For exact metallurgy and heat treatment details, check the supplier's technical spec sheet.
The product description does not explicitly state new or remanufactured. Please verify condition (new, reman, or reconditioned) with the seller prior to purchase.
Yes. It is strongly recommended to install new main and rod bearings as well as new crankshaft seals whenever replacing a crankshaft to ensure proper clearances and prevent leaks.
If you’re installing a new crankshaft, minimal machining should be required. If reusing or installing a remanufactured unit, have a machine shop check journal tolerances, straightness (runout), and balance; grinding or dynamic balancing may be necessary.
Installation is complex and requires engine disassembly, precise measurements, and correct torque procedures. Experienced DIYers with the right tools and a factory service manual can do it, but professional installation is recommended for most users.
Typical needs include an engine hoist or support, torque wrench, micrometers/plastigage for bearing clearance, dial indicator for runout, appropriate sockets and specialty pullers, and access to the Toyota service manual for torque/spec values.
Most 1SZ crankshafts are compatible with corresponding flywheels and harmonic balancers for the same engine family, but you must verify bolt patterns, pilot bearing fit, and keyway/spline compatibility prior to installation.
Inspect journals for scoring, pitting, excessive wear or discoloration, check for cracks (magnaflux if available), measure journal diameters and taper, and check runout. Replace if out of spec or damaged.
Follow standard engine break-in procedures: use fresh recommended oil and filter, run the engine at varied RPMs for the initial period, avoid prolonged high RPM or heavy loads, and perform an early oil and filter change after the break-in miles specified by your mechanic or service manual.
A properly fitted and balanced crankshaft restores smooth rotation and combustion efficiency, which can improve drivability and reduce vibration. It is not a performance upgrade by itself unless it is a specifically balanced or performance unit.
Provide your vehicle VIN, model year, engine code (1SZ/1SZ-FE), and any existing OEM part numbers to the seller. Cross-reference against OEM catalogs or supplier fitment lists to ensure correct match.
Warranty and return policies vary by supplier. Check the seller’s listing for details on limited warranties, return windows, and any core charges for reman parts before purchasing.
It’s recommended to purchase a full gasket/seal kit, new main and rod bearings, new thrust washers if applicable, and any fasteners specified as torque-to-yield. Consider replacing the oil pump and timing components if they show wear.
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