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1973 Honda SL350K3 Ignition Coils

For a 1973 Honda SL350K3 coil purchase, electrical suitability and physical fit are separate checks. The wired 5-ohm replacement gives useful mounting and connector details, while the 3.3-ohm single-tower option needs its own installation requirements confirmed before it is chosen.

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Currently viewing Ignition Systems, Ignition Switch, Coils, Plugs, Contact Points

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Honda CB500 CB450 CB350 CL350K0 CL350K1 ignition coil 30500-292-672

Honda CB Ignition Coil ~ Replaces 30500-292-672

$37.95 USD
17-6923
Replace your CB450/CL450, CB500T, or CB350/CL350/SL350 ignition coil with this Ignition Coil, replacing OEM #30500-292-672 / #30500-312-000 / #30500-286-004 / #30500-286-007 / #30500-310-670. 12V...
Honda CB360 CB350 CL350K0 performance high output single tower coil

Honda CB Performance High Output Single Tower Coil

$89.95 USD
17-6807
Upgrade your CB350 or CB360 ignition with this Performance Single Tower Ignition Coil. Single-tower high-output coil with 3.3 Ohm primary resistance and 70 kV...
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1973 Honda SL350K3 · Ignition Coils Buying guide

Compare the wiring as closely as the coil body

The detailed 5-ohm option has attached primary and spark-plug wires. Use their lengths, connector types and exit direction to plan the installation, after confirming that the coil specification suits the fitted ignition.

Parts to consider

Honda CB Ignition Coil ~ Replaces 30500-292-672 5-ohm coil with leads12V single-output coil, sold each, with a 19-inch plug wire and mounting holes approximately 80mm apart.View part Honda CB Performance High Output Single Tower Coil 3.3-ohm single-tower coil3.3-ohm single-tower coil for contact points or an electronic ignition requiring a 3-ohm coil; confirm the installed system’s instructions.View part

Map the attached wires before ordering

The 5-ohm coil has a 19-inch spark-plug wire, a 6.5-inch blue wire with a dual-female bullet connector and a 5.25-inch black/white wire with a male bullet connector. Compare those connections and available reach with the actual loom; changed connectors or brackets deserve attention before the order.

Check orientation without assuming interchange

A replacement for a beige Honda coil may need the opposite mounting orientation because the wires leave the body differently. Confirm lead routing and clearance against the installation instructions. That orientation note does not establish compatibility with the separate 3.3-ohm coil or confirm a changed ignition’s resistance requirement.

Buying questions

Why might the replacement face a different direction from my beige coil?

The wired 5-ohm replacement’s leads exit differently, and the product instructions call for reversed mounting when replacing a beige Honda coil. Check bracket clearance and safe wire routing before deciding that the installation is suitable.

Will the primary leads connect straight to a modified loom?

Compare the actual connectors first. This 5-ohm coil uses a dual-female bullet on the blue lead and a male bullet on the black/white lead; a modified loom may no longer have matching connections.

What should I check before switching to the 3.3-ohm option?

Confirm the ignition’s specified primary resistance first, then obtain the 3.3-ohm coil’s own mounting and lead details. The 5-ohm product’s approximately 80mm mounting centres and attached-wire measurements do not describe this alternative.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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