Sierra 18-8844-1 Wire Set for 454/502 8-Cylinder Engines, White

The Sierra 18-8844-1 Wire Set is a white, 8-cylinder spark plug wire set built for 454/502 marine engines. It uses corrosion-resistant stainless steel spark plug and distributor terminals for maximum conductivity, paired with a durable stainless steel wound conductor engineered to support maximum horsepower and engine performance while delivering superior RFI suppression for sensitive electronic systems onboard. At the core of each wire is a Kevlar reinforcement for long-term durability, wrapped in premium silicone jacketing and silicone boots that provide high-temperature protection in the demanding marine engine environment.

This is Sierra's XL Series ignition wire set, designed to replace a worn or failing factory wire set and restore reliable spark delivery across all 8 cylinders. The stainless steel terminal construction and silicone-jacketed Kevlar-core wires make this set well suited to engine bays that see sustained heat and vibration. It ships as a complete, ready-to-install set for 454/502 engine applications.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8844-1
• Product Name: Wire Set
• Cylinders: 8
• Ignition Type: XL Series
• Engine Model: 454/502
• Color: White
• Material: Stainless Steel
• Core Material: Kevlar
• Jacket Material: Silicone
• Connector Type: Spark Plug Connector
• Item Dimensions: 12 x 5 x 2 inches
• Weight: 0.98 pounds
• Unit Count: 1 Count
• UPC: 808282294625

Fitment

• 454/502 8-cylinder marine engines

Frequently Asked Questions

What engines is the Sierra 18-8844-1 wire set designed for? The Sierra 18-8844-1 Wire Set is designed for 454/502 8-cylinder marine engines.

How many cylinders does the 18-8844-1 wire set cover? This set covers 8 cylinders, matching the 454/502 engine configuration it is built for.

What color is the Sierra 18-8844-1 spark plug wire set? It is white, distinguishing it from other Sierra wire sets in the same series.

What are the spark plug and distributor terminals made of? The 18-8844-1 uses corrosion-resistant stainless steel spark plug and distributor terminals for maximum conductivity.

What is the wire conductor made of? Sierra builds the 18-8844-1 with a durable stainless steel wound conductor for maximum horsepower and engine performance, along with superior RFI suppression for sensitive electronic systems.

What is inside the wire jacket for heat protection? Each wire in the 18-8844-1 set has a Kevlar core for durability, wrapped in premium silicone jacketing and silicone boots for high-temperature protection.

What ignition type is the 18-8844-1? The 18-8844-1 is part of Sierra's XL Series ignition wire sets.

How much does the 18-8844-1 wire set weigh? The Sierra 18-8844-1 Wire Set weighs 0.98 pounds.

What are the dimensions of the 18-8844-1 wire set packaging? It measures 12 x 5 x 2 inches.

How many wires come in the 18-8844-1 set? The 18-8844-1 is a complete set covering all 8 cylinders on a 454/502 engine, sold as one unit count.

Is the Sierra 18-8844-1 a genuine Sierra part? Yes, 18-8844-1 is Sierra's own part number for this XL Series wire set, not a generic aftermarket substitute.

Why choose stainless steel terminals over standard terminals? Stainless steel terminals on the 18-8844-1 resist corrosion better than standard terminals, which matters in the marine engine environment where moisture and salt exposure are common.