Sierra Spark Plug Wire Set 18-8834-1 for Mercruiser MX 6.2L MPI 377 V-8 (2000-2001)

This Sierra spark plug wire set, part number 18-8834-1, is a complete tune-up wiring kit built for Mercruiser MX 6.2L MPI 377 cid V-8 sterndrive engines from the 2000-2001 model years (serial number range L680003 through M299999). The set uses Mercury HEI ignition type wiring and is finished in white for easy visual routing and identification in the engine bay. It includes a full complement of leads sized for each cylinder position: one 29 inch spark wire, two 33 inch spark wires, three 39 inch spark wires, two 45 inch spark wires, and one 12 inch coil wire, giving the correct reach for every plug and coil connection on this engine without excess slack or strain.

As a Sierra replacement part, it is engineered to meet or exceed the performance of the original equipment wiring it replaces, using materials suited to withstand heat, vibration, and the marine engine environment. It is intended for use as part of a full tune-up alongside the correct contact set, rotor, distributor cap, coil, and distributor for this engine, restoring reliable spark delivery on aging or deteriorated factory wiring.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8834-1
• Ignition Type: Mercury HEI
• Color: White
• Spark Wire Lengths: (1) 29 inches, (2) 33 inches, (3) 39 inches, (2) 45 inches
• Coil Wire Length: (1) 12 inches
• Weight: 1.9 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• UPC: 808282194604

Fitment

• Mercruiser MX 6.2L MPI, 377 cid V-8, model years 2000-2001, serial number range L680003 - M299999

Frequently Asked Questions

What engine does Sierra 18-8834-1 fit? Sierra 18-8834-1 fits Mercruiser MX 6.2L MPI 377 cid V-8 engines built in the 2000-2001 model years, covering serial numbers L680003 through M299999.

How many spark plug wires are in this set? The 18-8834-1 set includes eight spark plug wires (one 29 inch, two 33 inch, three 39 inch, and two 45 inch leads) plus one 12 inch coil wire, covering a full V-8 firing setup.

What ignition type is this wire set designed for? This set is built for Mercury HEI ignition systems, matching the ignition type used on the covered Mercruiser MX 6.2L MPI engines.

What color are the wires in kit 18-8834-1? The Sierra 18-8834-1 wire set is white, making it easy to distinguish from the factory wiring during installation.

How much does the 18-8834-1 wire set weigh? This Sierra spark plug wire set weighs 1.9 pounds.

Is this an OEM or aftermarket part? Sierra 18-8834-1 is a Sierra-brand aftermarket wire set engineered to meet or exceed the performance of the original equipment wiring it replaces.

Does this kit include the coil wire? Yes, the 18-8834-1 set includes one 12 inch coil wire in addition to the eight spark plug wires.

What other tune-up parts pair with this wire set? For a full tune-up on the covered Mercruiser MX 6.2L MPI 377 V-8, this wire set is used alongside the matching contact set, rotor, distributor cap, coil, and distributor for the same serial number range.

Will 18-8834-1 fit a Mercruiser from a different serial number range? This set is specified for the MX 6.2L MPI 377 V-8 engines in the L680003 to M299999 serial range; engines outside that range use a different wire set.

What length are the individual spark plug wires? The kit includes wires in four lengths: one 29 inch, two 33 inch, three 39 inch, and two 45 inch spark wires, sized for the different cylinder positions on the V-8.