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561.414.1046

Smith & Loveless 2-1/8″ Mechanical Seal — Single or Double

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Smith & Loveless 2-1/8″ Mechanical Seal — Single or Double

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  • DESCRIPTION

    Smith & Loveless 2-1/8″ Mechanical Seal — N-11 (Single or Double)

    The Smith & Loveless 2-1/8″ mechanical seal is a direct-fit replacement seal for Smith & Loveless pumps running a 2-1/8″ shaft — choose single or double from the dropdown and you’ll get the right seal for your pump. Built to OEM-equivalent standards or higher for the same fit and reliability as the original.

    This size is offered in our N-11 component style — a crimped-head Type 21 / Type C design with a Carbon/SiC face and cup seat. It is the equivalent of U.S. Seal #3316 (VG-3316, also referenced as 4C2D and H87A97) for the single, and VG-1107 for the double. Note: this is not an OEM-style CRO seal; it’s our N-11 component replacement.

    At a glance:

    • Shaft size: 2-1/8″

    • Style: N-11 component (crimped-head Type 21 / C, cup seat)

    • Configuration: Single or Double

    • Faces: Carbon/Silicon

    • Elastomers: Viton (FKM)

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

    Single vs Double — Which Do I Need?

    The difference is how many sealing points the pump uses. A single seal has one set of sealing faces — the standard setup on many Smith & Loveless pumps. A double seal has two sets of faces for a second barrier in tougher or continuous-duty service. The safest way to choose is to match what your pump came with: count the seals on the old unit, or check your parts list. Not sure? Send a photo to 561-414-1046 and we’ll confirm.

    What’s Included

    N-11 Style (Component) A complete N-11 component mechanical seal — Carbon/SiC faces with cup seat.

    • Single: one seal set

    • Double: two seal sets

    Please note: this is the mechanical seal only. O-rings, shaft sleeves, and pump-side hardware are not included.

    How to Order

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

    Smith & Loveless 2-1/8″ Seals — Style Reference
    Find your configuration below, then select it from the dropdown above to order. Need help matching? Call or text 561-414-1046.
    Style & Configuration Cross-Reference Notes
    N-11 Style — Single VG-3316 · U.S. Seal 3316 · 4C2D · H87A97 Crimped-head T-21, cup seat; not an OEM CRO
    N-11 Style — Double VG-1107 Double T-N11; Nitrile/Carbon/SiC, 3.187? cup seats
    Not sure which seal you need? Call or text 561-414-1046 — our seal specialists will match it. No purchase required.
Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.

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