Buck Stack Gasket – 14" x 3-1/2" | PO-260570 | Replaces Part #631214

Buck Stack Gasket – 14" x 3-1/2" | PO-260570 | Replaces Part #631214

Ensure 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 #631214
• High-Temp Fiberglass – Heat-resistant material built for long-lasting performance
• Versatile Fit – Works with many stove brands using a 3-1/2" x 14" transition
• Improves Sealing – Creates an air-tight barrier to prevent smoke or draft leaks

Product Specifications:

• Part Numbers: PO-260570 / 631214
• Inner Dimensions: 3-1/2" x 14"
• Outer Dimensions: 4-5/8" x 15"
• Material: High-temperature fiberglass
• Application: Stack-to-pipe transition seal

Compatible Stove Brands:

• Buck
• Appalachian
• Craft
• Hawke
• Lilly
• Silent Flame
• Squire
• Apache
• Long Manufacturing
• May fit additional models—refer to your owner’s manual for confirmation

Installation 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 reinstallation
• If the current gasket is cracked, missing, or leaking
• As part of a new stove setup or regular maintenance

Seal 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!