Ignition Coil 12597745/42597745 UF543

This Buick / Cadillac ignition coil is supplied for the listed OE numbers 12597745 and 42597745. It uses a 4 pins connector and with-module configuration, so connector layout, housing profile, mounting arrangement, and overall coil structure are useful points to review when confirming a replacement product.

Buyers can compare the listed OE number with the connector orientation, terminal position, plug direction, housing shape, mounting points, and dimensions of the original coil. Reviewing these details together provides a more complete basis for product matching than relying only on exterior appearance.

Product Matching Details to Verify

Listed OE Numbers

Confirm 12597745 or 42597745 against the original component during sample review, quotation, catalog preparation, or order confirmation. The listed OE reference can be checked together with the physical structure of the original ignition coil.

4 Pins Connector

The 4 pins connector is an important matching point for this ignition coil. Connector shape, terminal layout, locking position, plug direction, and installation orientation can be compared with the original component before final product confirmation.

With Module Structure

This ignition coil is listed as with module. Module configuration should be reviewed together with the connector, housing design, mounting structure, and other visible product details when confirming the required replacement configuration.

Winding, Insulation and Electrical Condition

Ignition coil operation is related to the primary and secondary windings, internal insulation, terminals, magnetic components, and electrical connections. During product evaluation, these areas can be considered together with connector fit, housing condition, mounting dimensions, and general assembly condition.

Engine heat, repeated temperature changes, vibration, and electrical loading are common working conditions around ignition components. Depending on the inspection requirements, checking may include terminal contact, connector condition, housing integrity, insulation-related characteristics, and relevant electrical measurements according to the applicable product or vehicle specifications.

Sample and Batch Consistency Review

During sample evaluation, the replacement coil can be compared with the original part for the listed OE number, 4 pins connector, with-module structure, connector orientation, housing profile, and mounting details. Original coil photos or connector close-ups can provide additional reference when further confirmation is required.

For repeat or batch purchasing, the approved sample can be used as a reference for connector configuration, product appearance, visible assembly details, labeling, and packaging requirements. Any additional specifications can be confirmed according to the actual purchasing project.