SHINEHOME spark plug wire separator and boot protector kit — 12 aluminum separators + 8 braided fiberglass sleeves for heat protec

SHINEHOME’s kit combines 12 aluminum spark plug wire separators with 8 double-braided fiberglass boot sleeves to protect wires from heat and to neatly route spark plug leads under the hood.

Keep ignition wires organized and insulated from engine heat with this two-part set designed for a wide range of spark plug boots and wire diameters. The aluminum separators fix wire spacing and prevent crossing or rubbing, while the braided heat sleeves slip over boots to reduce thermal exposure from exhaust manifolds and hot engine components. Together they simplify routing, reduce wear, and create a cleaner engine bay appearance without modifying factory wiring.

Will this fit my vehicle’s spark plug boots and wires?

The kit is built for broad compatibility: the boot protectors accept 90°, 45° and straight boots, and the separators accommodate common 8mm, 9mm, and 10mm wire sizes. Because the separators are assembled with removable fasteners, they can be adjusted to suit different wire layouts and spacing needs.

• Boot protector fits most angled and straight spark plug boots
• Separators support 8mm–10mm ignition wires
• Adjustable aluminum sections allow custom spacing
• Included Allen key for on-vehicle assembly

How do these components protect wires from engine heat?

The boot protectors are made from double-braided fiberglass sleeves that offer flame resistance and thermal insulation to reduce direct heat transfer to the boot and wire. The separators keep wires away from hot surfaces and from each other, minimizing abrasion and the risk of chafing against manifolds or brackets.

• Fiberglass sleeve resists high temperatures and flames
• Separators keep wires lifted and spaced from hot parts
• Combination reduces risk of heat-related wire degradation
• Durable materials withstand under-hood conditions

How easy is installation under the hood?

Installation is straightforward: slide the stitched end of the heat sleeve over the spark plug boot, then clamp the aluminum separators around grouped wires and fasten with the included Allen key. No special tools or wire cutting are required, and installation can be completed in most vehicles within 20–40 minutes depending on engine access.

• Slip-on heat sleeves — no adhesives or heat required
• Tool included: Allen key for separator assembly
• No modifications to factory wires needed
• Reversible and removable for service access

How durable are the materials for daily driving and performance use?

The separators are made from corrosion-resistant aluminum alloy that is both lightweight and impact-resistant, while the braided fiberglass sleeves deliver long-term thermal protection and wear resistance. Both parts are designed to hold up to routine engine vibration, temperature cycles, and exposure to grime and road chemicals.

• Aluminum alloy resists wear and keeps wires secure
• Fiberglass braid tolerates high temperatures and abrasion
• Components stay functional through regular engine stress
• Finish reduces chance of wire movement or loosening

Who is this for? This SHINEHOME kit is intended for DIY mechanics, restorers, performance enthusiasts, and everyday drivers who want to protect ignition wiring, tidy engine compartments, and prevent heat-related wear without altering factory wiring. It’s especially useful for vehicles with tight engine bays, headers or exhaust manifolds close to spark plugs, and for anyone preparing a car for reliable daily use or track days. The kit is also practical for shops that need a versatile, fast-install solution for multiple vehicle types.