Identify CURT SecureLatch 48625, 48626 & 48641 Lunette Rings

When an older SecureLatch ring has lost its packaging, the eye itself may not tell you whether you need a 25,000 lb or 40,000 lb model. Both ring-only versions have a 3-inch inside opening and a movable anti-theft pin. Instead, inspect the rear mounting face and the channel fitted to the trailer. The 48641 identifies the complete ring-and-channel kit, not a third interchangeable ring.

Identify the original SecureLatch MPN

48625: a two-hole, 25,000 lb ring for an 11¾-inch-high, 3-inch-inside-width channel. 48626: a three-hole, 40,000 lb ring requiring CURT 48651, a narrower 2¾-inch-inside-width channel. 48641: the complete 40,000 lb assembly containing the 48626 ring, 48651 channel and mounting fasteners.

Recognize the correct mounting channel

Measure the clear inside width of the channel and count the holes used to secure the ring. A 3-inch inside opening for the 48625 and a 2¾-inch inside opening for the 48626 are not interchangeable. A bare 48626 ring can look the same as the ring included in the 48641 kit; the kit's identity depends on the included channel and fastening components.

Replacement identification checklist

1. Find the stamped part number and rating. Check the ring, installation records or original packaging rather than relying on its grey finish or 3-inch eye alone.
2. Count mounting holes. Two-hole 48625 and three-hole 48626 use different channel arrangements; do not drill or adapt a channel to force a fit.
3. Check the channel model and dimensions. CURT 48651 is 2¾ inches inside width. Standard CURT channels 48610 and 48650 are wider and should not be substituted for it.
4. Check included parts. Ring-only 48626 does not include the three Grade 8 mounting bolts specified in CURT's instruction sheet. Kit 48641 includes the matching 48651 channel and fasteners. Confirm all hardware before installation.
5. Check rise-only use. CURT prohibits drop-position installation of 48626 and 48641. Confirm the actual orientation against the manufacturer diagrams.
6. Inspect the mechanism and structure. Look for damaged or missing locking pins, distortion, wear, loose hardware and deteriorated welds before returning the trailer to service.

Manufacturer installation instructions: CURT 48626 ring installation sheet (PDF) and CURT 48641 complete kit installation sheet (PDF).

Compare product photographs and exact listings

The three UsedRVParts catalog entries below are marked Brand New. Each product page provides current availability and fulfillment information. Eligible local viewing or pickup in Kelowna is by appointment.

CURT 48625

SecureLatch ring only · 25,000 lb GTW

Two-hole · 11¾-in-tall, 3-in inside-width channel

Review matching listing

CURT 48626

SecureLatch ring only · 40,000 lb GTW

Three-hole · CURT 48651; 2¾-in inside width

Review matching listing

CURT 48641

Ring, channel and mounting kit · 40,000 lb GTW

Three-hole · Included 48651; 2¾-in inside width

Review matching listing

Compare other CURT towing connections

If the original connection uses a plain lunette eye or a hitch-ball coupler rather than SecureLatch, refer to our standard CURT lunette-ring identification and CURT adjustable ball-coupler identification. These are different mounting systems.