Spark Plug Wire Boots Protector Sleeve, 2500 Degree Spark Plug Wire Heat Shield Sleeve Cover for SBC BBC 350 454, 6 Inch Spark Plug Wire Heat Insulation Cover Wrap for Car Truck (Red, 8PCS)

A cooked plug boot is a fault you tend to hear before you feel it — a stumble at idle, a miss under load — and on an SBC or BBC with headers crowding the plugs, radiant heat is usually what hardened and cracked the boot. These sleeves are the layer in between: eight covers of double-wall braided glass fibre, each about 5.96 by 1.06 inches, that slide over spark plug boots and wires on SBC and BBC 350 and 454 engines.

The temperature claim, with its qualifier attached

The supplier rates the material for continuous temperatures of 1200°F to 1800°F — roughly 650 to 980 degrees Celsius — and up to 2500°F in intermittent bursts only. The title and search text quote 2500 flat, stripped of both unit and qualifier; the qualified figures are the ones we publish and the ones to plan around, because a sleeve that meets 2500°F only briefly is a 1200–1800°F part for the hours you actually drive. No flame-retardance standard is cited beside any of the numbers.

Style A, Style B, and what the listing never explains

Two options are buyable here — Style A, and a Style B that carries a different supplier part number. Everything on this page describes a single product, and the listing says nothing about what Style B is or how the two differ. If you are considering Style B, ask before ordering; we will not guess on the listing's behalf. Red, likewise, is a title-only word; the description itself names no colour.

Key features

• Double-wall glass fibre: two braided layers between the boot and engine or exhaust heat.
• Keeps boots from cooking: claimed to prevent burnout, hardening and cracking, with fewer misfires as the promised payoff.
• Three boot angles: fits 90-degree, 45-degree and straight spark plug boots.
• Slides on without tools: the supplier's single fitting direction is "seam end towards the spark plug".
• A V8's worth: eight sleeves, one for every cylinder of the engines named.

Specifications

• Sleeve material: double-wall braided glass fibre
• Continuous rating: 1200°F–1800°F, as claimed
• Intermittent rating: up to 2500°F, as claimed
• Sleeve size: about 5.96 × 1.06 in (roughly 15.1 × 2.7 cm, our conversion)
• Engines named: SBC and BBC 350 and 454
• Sleeves per pack: 8

Where the headline runs hotter than the text

• The supplier's note, quoted unchanged: "Only for gasoline-burning vehicles." Petrol engines only — keep it off diesels.
• 2500 degrees goes unqualified in title and search text; the description limits that figure to intermittent exposure, and the continuous band is 1200–1800°F.
• The title says 6 inch; the description measures 5.96 inches, and the smaller figure is what we print.
• A four-word phrase is duplicated back-to-back in the stored supplier text; we have not carried the duplication over.
• The search text credits the sleeves with cutting heat soak; the description makes no such claim.

For an engine bay where boots keep dying young, this is the sacrificial layer between rubber and radiant heat — bought on the continuous figure, never the headline one.

Returns, Refunds, and Replacements Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.