CURT Channel Lunette Rings: 48600, 48601, 48660 & 48610
A lunette ring is a heavy-duty trailer connection designed to engage a properly rated pintle hook or matching pintle combination. CURT's channel-style forged rings use the same 3-inch inside eye and 2-inch mounting-bolt spread, but vary in finish and ring rating. The adjustable mounting channel is a separate product that sets the permitted height and can limit the overall towing capacity.
Choose the ring by finish and rating
48600 — raw, 12,000 lbForged-steel 3-inch ring with bare finish and 2-inch mounting-bolt spacing. Ring only; channel and hardware sold separately.
48601 — black, 12,000 lbSame 3-inch inside eye and 12,000 lb ring rating, with a gloss-black protective powder-coat finish. This is not a complete channel assembly.
48660 — raw, 24,000 lbA 3-inch forged ring with a higher individual rating. Its extra capacity does not raise the capacity of a lower-rated channel.
CURT lunette rings and channel 48610 compared
| CURT MPN | Component | Eye diameter | Manufacturer GTW rating | Finish |
|---|---|---|---|---|
| 48600 | Ring only | 3 in | 12,000 lb | Raw steel |
| 48601 | Ring only | 3 in | 12,000 lb | Gloss-black powder coat |
| 48660 | Ring only | 3 in | 24,000 lb | Raw steel |
| 48610 | Channel only | Not an eye | 12,000 lb | Gloss-black powder coat |
How the 48610 adjustable channel works
CURT 48610 is a one-piece formed-steel mounting channel with a 3-inch inside width, three height-adjustment positions, 7½-inch overall height and 2-inch mounting-bolt spread. CURT specifies compatibility with the 48600, 48601 and 48660 rings. It includes the channel only, not a ring or bolts.
Do not combine ratings by addition or substitution. CURT 48660 has a 24,000 lb ring rating, but channel 48610 is rated to 12,000 lb GTW. An assembly using both is limited to no more than 12,000 lb GTW, and may be limited further by its fasteners, trailer, pintle hook or tow vehicle. Always check the separately applicable mounting and towing ratings.
Before choosing and installing the parts
- Identify the pintle connection. Verify that the tow vehicle's pintle hook or combination hitch is designed for the ring's 3-inch inside eye and is rated for the loaded trailer.
- Check the actual mounting channel. Confirm the channel's 3-inch inside width, two-inch bolt spread, height positions, alignment and condition. Do not confuse inside channel width with the outside dimension.
- Check all towing ratings. The 48610 channel has a 12,000 lb GTW rating, even when used with the 24,000 lb-rated 48660 ring. Use the lowest rated component of the completed setup.
- Plan the hardware separately. Each ring is sold without the channel and mounting hardware. CURT lists lunette-ring fastener kit 48620 separately for adjustable channel applications; follow the applicable installation sheet. The 25389 kit sold for CURT channel-mount ball couplers should not be assumed to replace a lunette-ring kit.
- Check trailer tongue structure. Have any required structural welding completed by a qualified installer, ensure the selected adjustment position is properly fastened and inspect all connections before towing.
Shop exact CURT lunette eyes and channel
The three rings and the 48610 mounting channel below are separate catalog products. NewRVParts fulfills orders from supplier warehouses; warehouse viewing or pickup is not available.
CURT 48610
Three-position adjustable channel
3-position adjustable channel; 12,000 lb rated
View exact productRelated trailer mounting reference
If your trailer uses a hitch ball instead of a pintle connection, compare our CURT adjustable ball couplers and channel-mount hardware. A ball coupler and a lunette eye are different connection systems.
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