Vortex Breather Plugs

Vortex breather plugs for X-Series, VXT-Series, and VMRV-Series speed reducers. The breather plug vents internal pressure that builds during operation as the gear oil heats up, while preventing moisture and contaminants from entering the housing. Without a working breather, pressure buildup can blow out shaft seals and cause oil leaks. Texas Belting and Supply stocks 6 metric and inch thread breather plugs (M10x1, M12x1.5, M22x1.5, ZG1/2, ZG3/4 BSPP threads) plus 3 VXT-specific XD-rated breathers for sizes VXT2-3, VXT4, and VXT5-7.

Applications

Typical applications for Vortex breather plugs:

• Replacement of a clogged or damaged breather plug (the most common reducer maintenance task)
• Conversion of a sealed reducer to a breathable configuration for warmer service
• Installation on a new reducer where the OEM ships without breather installed
• Service kit inventory for maintenance shops
• Outdoor or washdown installations using the XD-rated VXT breather plugs

Frequently Asked Questions

What thread size do you need?

Common thread sizes on Vortex reducers: M10x1 (metric, smaller VXTs and VR), M12x1.5 (mid-size metric), M22x1.5 (larger metric), ZG1/2 BSPP (1/2-inch British Standard Pipe, common on X-Series), ZG3/4 BSPP (3/4-inch BSPP, larger X-Series). Check the threads on your existing breather to confirm.

XD vs standard breather?

XD-rated VXT breathers (VXT2-3 XD BREATHER, VXT4 XD BREATHER, VXT5-7 XD BREATHER) are weatherproofed for outdoor and washdown service. Standard metric and BSPP breathers are appropriate for indoor industrial environments.

When to replace:

Replace breathers proactively every 2-3 years on continuous duty applications, or any time you see oil residue around the breather port (indicating the breather has failed and pressure is venting through the seals instead).

What reducer family is each breather plug for?

Each accessory in this collection is labeled with the reducer family it fits (X-Series, VXT-Series, VR-Series, or VMRV-Series). Filter by reducer family or browse by accessory type. Each product page also indicates the specific reducer size and configuration the accessory matches.

Does Texas Belting and Supply ship from Houston?

Yes. All Vortex breather plugs in our active inventory ship from Texas Belting and Supply's Houston, TX warehouse the same business day for orders placed before 3 PM Central time, subject to current inventory. Non-stocked configurations may have a 1-3 business day lead time. Call (888) 203-2358 to confirm current stock for any specific part.

How do I know which size accessory I need?

Match the accessory to your existing reducer. The accessory part number prefix tells you the family (VXT vs X-Series vs VMRV vs VR). The number in the SKU tells you the unit size (2-12 for VXT, 30-110 for VMRV, 133-325 for X-Series). If you cannot identify your reducer's exact specification, call (888) 203-2358 with the existing reducer's nameplate information and we will help you spec the right accessory.