FallTech 8366 18-Inch Harness Lanyard Extension

A plain 18 inch harness lanyard extension — FallTech 8366

Not every job needs a snap hook or a choking loop built in — sometimes the plain webbing is exactly what a harness lanyard extension should be. The FallTech 8366 is an 18 inch web D-ring extender for full body harnesses, without the extra end-hardware of its sibling SKUs, giving you the base component to rig however your setup calls for.

Shoppers searching a safety harness lanyard extension or a d ring extension strap without a specific connector already attached, or a general safety harness extender, land on the 8366.

Key features

• 18 inch web D-ring extender
• Built for full body harnesses
• Plain webbing design — no snap hook or choking loop attached
• FallTech — SKU 8366, live Amazon pricing on the linked listing

Pros & cons

Specifications

What this extension is for

Extending the reach between a full body harness and a lanyard, SRL, or rope grab connector when you want to choose your own end hardware rather than take a pre-attached snap hook or choking loop. It sits in our D-ring extenders guide, forms the connector link described in the fall protection equipment guide, and pairs with a lanyard from our fall protection lanyards guide and a harness from the full body harness collection, including FallTech's own 7015 contractor harness and 7007 FT Basic.

Compatibility

This extender is built for standard full body harness D-rings — confirm your harness's D-ring style and rated capacity before ordering. Pair the free end with a rated carabiner such as the Petzl Bm’D or the 3M DBI-SALA Saflok to complete your own connector setup.

How this extension compares

For a version with a snap hook already attached, see the sibling FallTech 836616; for one with a choking loop for wrapping a beam or post, see the FallTech 8366L. For a 3M dorsal D-ring extension instead, compare the 3M Protecta 1385000, the 3M DBI-SALA 1231117, or the KwikSafety Dolphin extender. Every connector and extension in stock is in the carabiners & connectors collection, harness selection is covered in our best safety harness guide, and the full field lives in the fall protection collection.

Safety note: a harness lanyard extension is one component of a personal fall arrest system — it must be paired with a properly fitted full body harness, a rated connector, a compliant lanyard or lifeline, and a rated anchor meeting OSHA 1926.502. Recalculate fall clearance with the extension's length included, inspect the webbing before every use, and retire it after any fall arrest.

Ordering FAQ

Is the FallTech 8366 in stock and ready to ship?
Yes — this listing is active and ships through Amazon. Open the linked listing for live price, availability, and delivery speed.

How long is this extension?
18 inches — the fixed length of this listing.

Does this have a snap hook or choking loop?
This listing is the plain web D-ring extender — FallTech's sibling SKUs (836616 and 8366L) are the versions with a snap hook or a choking loop respectively. Compare all three against how you plan to attach it.

What does this attach to?
It’s designed for full body harnesses, extending the D-ring attachment point for easier reach when connecting a lanyard, SRL, or rope grab.

Is this compatible with any harness brand?
It’s built for standard full body harness D-rings — confirm your specific harness’s D-ring style and rated capacity are compatible before ordering.

Why choose the plain 8366 over the snap-hook or choking-loop versions?
If your intended attachment method doesn’t need a built-in snap hook or choking loop — for example, if you plan to sew, splice, or otherwise integrate it into a specific rig — the plain extender is the base component.

What connects to this extension?
A lanyard, SRL, or rope grab connector with hardware compatible with this extender’s rated attachment points — check your connecting device’s listing for compatibility.

Is this OSHA compliant?
As a connector component it forms part of a compliant rig when paired with a rated harness, lanyard or lifeline, and anchor under OSHA 1926.502 — the extension itself is one link in that chain.

How do I inspect it before use?
Check the webbing for cuts, fraying, UV damage, or chemical staining, and confirm both ends and any stitching show no deformation or wear. Retire after any fall arrest.

Does this affect my fall clearance calculation?
Yes — any added length between the anchor and the worker reduces available clearance. Recalculate your fall clearance with this extension’s length included before relying on it.

How many do I need per harness?
One per harness that needs the added reach — if a worker rotates between multiple harnesses, each would need its own extension.

How do I reorder for a crew?
Reorder from this page — the listing and its linked Amazon ASIN stay constant, so equipping every harness that needs it takes seconds.

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