CURT Trailer Safety Chains & Cables: Hooks, Ratings & MPNs
Trailer safety chains and cables provide a secondary connection if the coupler separates from the hitch. CURT offers individually supplied steel chains and two-piece coiled cable sets, with different hook ends and minimum break-force ratings. Use the exact part number—not appearance or a broad towing-class label—to choose the correct replacement.
Steel chains versus coiled safety cables
Individual Grade 30 chainsCURT 80010 has 3/16-inch links and two 3/8-inch S-hooks. The heavier-link 80030 and packaged 80031 use 1/4-inch links and two 7/16-inch S-hooks. Each part number identifies one complete chain assembly, not a pair.
Vinyl-coated cable pairsCURT 80151 and 80176 each include two coiled cables with snap-hook ends. Both have manufacturer-listed 42-inch cable assemblies; their minimum break-force ratings differ.
CURT safety chain and cable specifications
| MPN | Supply / type | Size in CURT specs | Hook ends | Minimum break force |
|---|---|---|---|---|
| 80010 | Single Grade 30 chain | 48 in overall; 3/16 in links | Two 3/8 in S-hooks | 2,000 lb |
| 80030 | Single Grade 30 chain | 48 in overall; 1/4 in links | Two 7/16 in S-hooks | 5,000 lb |
| 80031 | Single Grade 30 chain, packaged | 48 in overall; 1/4 in links | Two 7/16 in S-hooks | 5,000 lb |
| 80151 | Pair of vinyl-coated coiled cables | Two 42 in cable assemblies | Snap-hook ends | 5,000 lb |
| 80176 | Pair of vinyl-coated coiled cables | Two 42 in cable assemblies | Snap-hook ends | 7,500 lb |
The force values above are manufacturer-specified minimum break forces, not the hitch's towing rating or an independently stated working-load limit. CURT specifies that each safety chain or cable assembly must meet or exceed the trailer's gross weight. Check the trailer rating, tow vehicle attachment points, chain/cable hardware and applicable towing rules.
80030 or 80031? Both have the same stated 48-inch Grade 30 chain specification and 5,000 lb minimum break force. The manufacturer's distinguishing label for 80031 is packaged; it is not a higher-rated chain.
Five checks before selecting and towing
- Start with trailer weight. Compare the required rating with the minimum break force of each individual assembly. Do not add two ratings together to justify an under-rated part.
- Match the hook and connection point. Check hook opening, latching arrangement where provided, and the designated attachment points on the tow vehicle and trailer.
- Check length and turning slack. Chains must reach comfortably through turns without dragging. Coiled cables should extend through the full articulation range without being pulled tight.
- Inspect both ends. Replace bent hooks, damaged links, worn cables and other compromised hardware; never improvise substitute attachment hardware.
- Follow the hitch and trailer instructions. Cross the safety connections below the trailer tongue as instructed, keep adequate slack and confirm the coupler, safety connections and lights before travel.
Shop CURT safety chains and cables by part number
These cards link to the matching NewRVParts listings. Products ship from supplier warehouses; warehouse viewing and customer pickup are not available.
More towing hardware references
Comparing hitch attachment hardware as well? Browse our CURT receiver pintle hook guide or CURT adjustable pintle mount comparison. These are separate components and do not replace correctly rated trailer safety connections.
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