Sierra 18-5297 Electronic Ignition Conversion Kit for 4-Cylinder GM, Interchanges with GLM 72510

The Sierra 18-5297 Electronic Ignition Conversion Kit replaces points and a condenser with a true solid-state ignition system for 4-Cylinder GM marine engines. Points-and-condenser systems wear over time and require periodic gapping and replacement; this kit eliminates that mechanical contact point entirely, delivering consistent spark and more reliable starting. The kit is built as a one-piece, two-wire hookup, so it installs into the existing distributor without requiring a new coil, cap, or rotor.

Timing accuracy is held within 1/4 degree across a 0 to 6000 RPM range, which keeps ignition timing consistent from idle through high RPM operation. The kit carries 3 ohms of resistance and is designed to work with Sierra's Flame Thrower coils 18-5466 and 18-5469 if a coil upgrade is desired. It is not compatible with shift assist modules.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5297
• Product Type: Electronic Ignition Conversion Kit
• Fitment: 4-Cylinder GM
• Timing Accuracy: Within 1/4 degree, 0 to 6000 RPM range
• Resistance: 3 ohms
• Wiring: One-piece, 2-wire hookup
• Compatible Coils: Sierra Flame Thrower 18-5466 and 18-5469
• Weight: 0.34 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• UPC: 030999754189

Fitment

• 4-Cylinder GM

Replaces (OEM)

• Interchanges with GLM 72510

Frequently Asked Questions

What does the Sierra 18-5297 conversion kit do? It replaces the points and condenser in a 4-Cylinder GM distributor with a true solid-state electronic ignition, removing the wear-prone mechanical contact point from the ignition system.

Will the 18-5297 kit work with my existing coil, cap, and rotor? Yes, the Sierra 18-5297 is designed to use your standard coil, cap, and rotor, so no additional ignition components are required beyond the kit itself.

How accurate is the timing on this ignition kit? The 18-5297 holds timing accuracy within 1/4 degree across a 0 to 6000 RPM range, keeping spark timing consistent from idle to high RPM.

What is the resistance rating of the 18-5297 kit? The Sierra 18-5297 Electronic Ignition Conversion Kit has a resistance rating of 3 ohms.

Is the 18-5297 kit difficult to install? No, it is built as a one-piece unit with a 2-wire hookup, which is designed for straightforward installation into the existing 4-Cylinder GM distributor.

Does the 18-5297 have a GLM equivalent number? Yes, the Sierra 18-5297 interchanges with GLM 72510.

Can the 18-5297 kit be paired with a performance coil? Yes, it can be used with Sierra's Flame Thrower coils 18-5466 and 18-5469 for a coil upgrade.

Is the Sierra 18-5297 kit compatible with shift assist modules? No, the 18-5297 is not compatible with shift assist modules.

What engines does the 18-5297 fit? The Sierra 18-5297 Electronic Ignition Conversion Kit is designed for 4-Cylinder GM engines.

How much does the 18-5297 conversion kit weigh? The Sierra 18-5297 weighs 0.34 pounds.

Why switch from points and condenser to the 18-5297 electronic kit? Points and condensers wear and require periodic gapping or replacement; the 18-5297 replaces them with solid-state electronics for more consistent ignition performance over time.