Sierra 18-8835-1 MAGFORCE Ignition Wire Set for 3.0L 4-Cyl and 4.3L 6-Cyl Marine Engines

The Sierra 18-8835-1 is a MAGFORCE ignition wire set built for marine engines that use a Delco EST or YEMS distributor. Sierra designed the MAGFORCE line to be "Electronics Friendly," meaning the wires are constructed to protect onboard electronic devices and electronic engine controls from radio frequency interference (RFI) and electromagnetic interference (EMI) while still delivering maximum voltage to the spark plugs. Each wire uses a Mag/Wire wound core to achieve this shielding without sacrificing voltage output.

Construction features moisture-proof, molded distributor insulators that seal out the damp conditions typical of a marine engine compartment, along with a high-quality conductive center carrier reinforcement that maintains conductor integrity over the life of the wire. The set is built to an exact-fit design so installation follows the factory routing without modification.

The kit includes spark plug wires in 29 inch, 33 inch, and 39 inch lead lengths along with a 15.5 inch coil wire, covering the different plug positions on the engine. Part number 18-8835-1 fits 3.0L 4-cylinder engines with a Delco EST distributor, 4.3L 6-cylinder engines with a YEMS distributor, and 4.3L 6-cylinder engines with a Delco EST distributor.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8835-1
• Product Type: Ignition/Spark Plug Wire Set
• Distributor Type: Delco EST / YEMS
• Engine Fitment: 3.0L 4-Cylinder; 4.3L 6-Cylinder
• Spark Plug Wire Lead Lengths: (2) 29 inches, (2) 33 inches, (2) 39 inches
• Coil Wire Length: 15.5 inches
• Interference Protection: RFI and EMI shielded (Mag/Wire wound core)
• Distributor Insulators: Moisture-proof, molded
• Weight: 1.5 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• UPC: 808282194611

Fitment

• 3.0L 4-Cylinder engine with Delco EST distributor, 1990 to 1993
• 4.3L 6-Cylinder engine with YEMS distributor, 1989
• 4.3L 6-Cylinder engine with Delco EST distributor, 1990

Frequently Asked Questions

What engines does the Sierra 18-8835-1 ignition wire set fit? The Sierra 18-8835-1 fits 3.0L 4-cylinder engines with a Delco EST distributor built from 1990 to 1993, 4.3L 6-cylinder engines with a YEMS distributor built in 1989, and 4.3L 6-cylinder engines with a Delco EST distributor built in 1990.

How many spark plug wires come in the 18-8835-1 set? The set includes plug wires in three lead lengths, 29 inches, 33 inches, and 39 inches, plus a separate 15.5 inch coil wire, matching the plug positions on the covered 4-cylinder and 6-cylinder engines.

Does this wire set protect against radio and electronic interference? Yes, the Sierra 18-8835-1 uses a Mag/Wire wound core designed to block RFI and EMI so it delivers maximum voltage without interfering with onboard electronic engine controls or other electronic devices.

Is the Sierra 18-8835-1 moisture resistant? The distributor insulators on the 18-8835-1 are moisture-proof and molded, which helps the wire set hold up in the damp conditions of a marine engine compartment.

What is the difference between the Sierra 18-8835-1 and 18-8836-1? The 18-8835-1 is built for 3.0L 4-cylinder and 4.3L 6-cylinder engines, while the 18-8836-1 is a separate part number for 5.0L and 5.7L 8-cylinder engines and 7.4L 8-cylinder engines; they are not interchangeable.

What is the weight of the Sierra 18-8835-1 ignition wire set? The Sierra 18-8835-1 MAGFORCE ignition wire set weighs 1.5 pounds.

Will the 18-8835-1 fit my engine if it has a Delco EST distributor? It depends on the engine size and year. The 18-8835-1 fits a 3.0L 4-cylinder engine with Delco EST from 1990 to 1993, and a 4.3L 6-cylinder engine with Delco EST in 1990.

Does the Sierra 18-8835-1 include a coil wire? Yes, the set includes one coil wire measuring 15.5 inches in addition to the spark plug wires.

What kind of distributor works with the 18-8835-1 wire set? The 18-8835-1 is designed for engines using a Delco EST distributor or a YEMS distributor, depending on the engine model and year.

Is installation of the Sierra 18-8835-1 straightforward? Sierra designed the 18-8835-1 with an exact-fit layout so the wires route the same way as the original set, making installation straightforward.

What reinforces the conductor in the Sierra 18-8835-1 wires? Each wire in the 18-8835-1 set uses a high-quality conductive center carrier reinforcement to help maintain conductor integrity over time.