Sierra 18-5436 Ignition Coil, Internal Resistor, Replaces Volvo Penta 35254, for Stern Drive

The Sierra 18-5436 is a marine ignition coil built with an internal resistor for stern drive engines that require internal-resistor operation, including Volvo Penta stern drive applications. It delivers a coil resistance of 3.0 ohms, with a primary resistance of 1.4 ohms (plus or minus 15 percent) and a secondary resistance of 8 ohms (plus or minus 20 percent), producing the spark energy needed for reliable ignition in a marine environment. The coil uses a male connector for straightforward wiring and is a bolt-on installation, letting it mount in place of the original coil without modification. Sierra manufactures this coil to meet or exceed the performance of the original equipment part it replaces, making it a direct functional replacement rather than a generic substitute. Housed in a compact 3.5 x 3.5 x 7 inch body, it is sized to fit into the same mounting locations as the original coil it replaces. This coil is intended for applications that specifically call for an internal-resistor ignition coil rather than an externally resisted setup, so confirming that requirement before ordering will ensure correct electrical compatibility.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5436
• Resistor Type: Internal
• Coil Resistance: 3.0 ohms
• Primary Resistance: 1.4 ohms, plus or minus 15 percent
• Secondary Resistance: 8 ohms, plus or minus 20 percent
• Connector Gender: Male
• Installation Type: Bolt-On
• Item Dimensions: 3.5 x 3.5 x 7 inches
• Weight: 3.16 pounds
• UPC: 030999319357

Fitment

Intended for engines and stern drive applications that require an ignition coil with an internal resistor, including Volvo Penta stern drive applications.

Replaces (OEM)

• Mallory 9-29707
• Volvo Penta 35254
• VOLVO 35254-2

Frequently Asked Questions

What engines is the Sierra 18-5436 ignition coil designed for? The Sierra 18-5436 is built for engines and stern drive applications that require an ignition coil with an internal resistor, including Volvo Penta stern drive applications.

Does the 18-5436 have an internal or external resistor? It has an internal resistor, which is why it is specified for applications requiring internal-resistor ignition coils rather than an externally resisted setup.

What OEM parts does the Sierra 18-5436 cross-reference to? It is designed to be interchangeable with Mallory 9-29707 and Volvo Penta 35254 (also listed as VOLVO 35254-2).

What are the electrical specs of this ignition coil? Coil resistance is 3.0 ohms, primary resistance is 1.4 ohms plus or minus 15 percent, and secondary resistance is 8 ohms plus or minus 20 percent on the Sierra 18-5436.

How much does the 18-5436 ignition coil weigh? The Sierra 18-5436 weighs 3.16 pounds.

What size is the Sierra 18-5436 coil? Its item dimensions are 3.5 x 3.5 x 7 inches.

Is this a genuine Sierra part or an aftermarket copy? The 18-5436 is manufactured by Sierra as a direct replacement coil, engineered to meet or exceed the performance of the original equipment part it replaces.

What type of electrical connector does the 18-5436 use? It uses a male connector gender for its wiring connection.

Is installation a simple swap for the original coil? Yes, the Sierra 18-5436 is a bolt-on installation, so it mounts in the same location as the original coil without modification.

What is included when you order the 18-5436? The order includes one Sierra 18-5436 marine ignition coil.

How is the 18-5436 different from a standard external-resistor coil? The 18-5436 carries its resistor internally, so it is meant for applications specifying an internal-resistor coil rather than one paired with a separate external resistor.