Minelab 18" Round Coil Cover for GPX, SD, and GP Series Detectors

The Minelab 18" round coil cover is compatible with GPX 5000, GPX 4800, GPX 4500, GPX 4000, GP 3500, GP 3000, GP Extreme, SD 2200v2, SD 2100v2, SD 2200d, SD 2100e, SD 2100d, and SD 2000 detectors when equipped with the 18-inch round Commander coil. This cover fits only the 18" round coil geometry, it will not fit elliptical or smaller round coils in the Minelab gold prospecting lineup. Confirm your coil measures 18 inches in diameter before ordering.

The coil cover is made from molded polyethylene, a durable material designed to protect the coil housing from abrasion. Polyethylene absorbs contact from quartz and decomposed granite without transferring stress to the coil housing underneath. The cover is designed to withstand field use in rocky terrain and protect the coil from surface wear during prospecting.

The coil cover is designed to fit the 18" Commander coil and protect its bottom surface during use. The cover stays in place during normal sweeping and protects the coil housing from abrasion and impact. Remove the cover periodically to inspect the coil housing for any debris that may have worked underneath. Proper installation ensures the cover protects the coil housing throughout your detecting sessions.

The coil cover is designed to protect without interfering with detection performance. The cover's primary benefit is protecting the coil housing from abrasion, which indirectly preserves performance by preventing housing damage that could compromise the coil's waterproof seal or internal wiring. Prospectors running without a cover in rocky terrain often see coil failure from housing wear, making protective covers an important accessory for maintaining long-term detector performance in challenging ground conditions.

Inspect the coil cover regularly for wear, cracks, or edge separation that could compromise its protective function. A cover that shows significant wear or no longer fits securely should be replaced before the next outing to ensure continued protection of the coil housing underneath. Regular inspection after each hunt helps you catch wear before it progresses to the point where the coil housing itself becomes exposed to abrasion. For more guidance on coil maintenance and field care, see our metal detecting tips and FAQs.

No, this cover is designed specifically for the 18-inch round Commander coil and will not fit elliptical coil geometries like the Minelab 15x12 or 11-inch DD coils. The molded shape matches the circular perimeter of the 18" round coil, attempting to fit it on an elliptical coil will leave gaps at the long axis and create pressure points at the short axis. Minelab manufactures coil covers matched to each coil geometry in their lineup. Confirm your coil's shape and size before ordering a replacement cover.

The coil cover is covered by Minelab's manufacturer warranty. If the cover arrives with molding defects, cracks, or fit issues, contact us within 30 days for a replacement. Serious Detecting also offers a 30-day return window and free shipping on all orders.

The coil cover is designed to protect the coil housing from abrasion and impact damage during field use. Sharp quartz edges and repeated strikes against bedrock will wear the cover material over time, which is the intended function as the cover absorbs contact forces that would otherwise damage the coil housing. The cover's role is to extend coil housing life by taking the wear that would otherwise affect the coil itself. Inspect both the cover and the coil housing periodically to catch wear before it compromises the coil's waterproof seal.

This cover is designed for the Minelab 18" round Commander coil and may not fit coils from other manufacturers even if they measure 18 inches in diameter. Coil housing shapes, thicknesses, and edge profiles vary across brands, and a cover molded for the Commander coil may not grip securely on a non-Minelab coil. If you are running a third-party 18" coil on a Minelab detector, confirm the coil's housing geometry matches the Commander coil before ordering this cover. Aftermarket coil manufacturers sometimes offer their own protective covers matched to their coil designs.

The coil cover is made from molded polyethylene, but its primary function is abrasion protection. The coil's waterproof integrity depends on the coil housing's factory seal, not the cover. Prospectors working wet environments should inspect the coil housing and cable junction for any wear that could compromise the seal, then install the cover to prevent further abrasion. The cover does not add waterproofing to a coil that has already been compromised by housing damage. Replace any coil with a damaged housing seal rather than relying on the cover to block water intrusion.