Buck Stack Gasket – 14″ x 3-1/2″ | PO-260570 | Replaces Part 631214Ensure a tight, air-sealed fit between your wood stove and the flue with the Buck Stack Gasket (Part PO-260570 / 631214). Designed for a 3-1/2″ x 14″ transition stack, this fiberglass gasket fills gaps and seals uneven surfaces where the stove connects to the pipe—helping improve draft, safety, and overall stove efficiency.Key Features:OEM Replacement – Fits Buck part PO-260570 and replaces 631214High-Temp Fiberglass – Heat-resistant material built for long-lasting performanceVersatile Fit – Works with many stove brands using a 3-1/2″ x 14″ transitionImproves Sealing – Creates an air-tight barrier to prevent smoke or draft leaksProduct Specifications:Part Numbers: PO-260570 / 631214Inner Dimensions: 3-1/2″ x 14″Outer Dimensions: 4-5/8″ x 15″Material: High-temperature fiberglassApplication: Stack-to-pipe transition sealCompatible Stove Brands:BuckAppalachianCraftHawkeLillySilent FlameSquireApacheLong ManufacturingMay fit additional models—refer to your owner’s manual for confirmationInstallation Tip:This gasket is used with 3-1/2″ x 14″ x 8″ round transition stacks (Part 9S31214). You may also need T-bolts or tie-downs for a secure installation.When to Replace:During stack or pipe reinstallationIf the current gasket is cracked, missing, or leakingAs part of a new stove setup or regular maintenanceSeal your wood stove stack properly with the Buck 14″ x 3-1/2″ Stack Gasket. Order today for a reliable OEM fit and long-lasting performance!








