Gianneschi Mechanical Seal — T-13 by Shaft Size

Gianneschi Mechanical Seal — T-13 by Shaft Size

Gianneschi mechanical seals are direct-fit T-13 shaft seals for Gianneschi pumps — choose your shaft size from the dropdown and you’ll get the right seal for your pump. Each is built to OEM-equivalent standards or higher for the same fit and reliability as the original.

Standard build: T-13 seal with Ceramic and Carbon faces and Buna (NBR) elastomers. Several sizes are supplied with an upgraded carbon face over the molded-carbon original — see your selected size.

At a Glance 

• Product: Gianneschi T-13 mechanical seal

• Selection: Choose by shaft size

• Sizes available: 12mm, 18mm, 20mm, 24mm, 32mm

• Seal Type: T-13

• Faces: Ceramic/Carbon

• Elastomers: Buna (NBR)

• Form: Seal assembly only (O-rings/gaskets sold separately)

Select your shaft size above — the price and cross-reference for that size will update. Not sure which size you need, or matching from a worn seal? Measure your shaft, or send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required — our seal specialists will match it.

Need a different face or elastomer combination? Call or text 561-414-1046 and we’ll build it.

Explore our full line up of OEM seals 

Looking for more? Shop Pump Repair Kits, Shaft Seals and Pre-Cut Gaskets

Have questions? Call us anytime- we’re here to help