Choosing hydraulic hose end fittings comes down to two details: the thread style of the connection and the inner diameter of the hose. If either is wrong, a perfectly good fitting pack becomes a shelf full of metal parts that won't seal. All four sets here are crimp-on hydraulic hose end fittings, but they split into NPTF male pipe thread and JIC 37° flare ends. So the first question to answer is which thread family your ports use, then match the hose size. These packs are close enough in price that thread compatibility should lead the decision.
Quick take
If your system has NPTF pipe ports, the 12-pack NPTF male set is the lowest-priced option here. If you're on JIC 37° flare, match hose size: the 3/8" female swivel pack for smaller lines, the 1/2" female swivel pack for half-inch lines, and the 3/4" male JIC pack for 3/4" lines. There's no single winner across all four because size and thread style decide it before price does.
Listed price comparison
| Fitting pack | Listed price | Relative price | Quantity | End connection |
|---|---|---|---|---|
| 12-Pack 1/2" Hose x 1/2" NPTF Male Pipe Thread Hydraulic Hose End Crimp Fittings | $41.99 | 12 | 1/2" NPTF male pipe thread | |
| 12pcs 3/8" Hose x 3/8" JIC 37° Female Hydraulic Hose End Swivel Crimp Fittings | $43.69 | 12 | 3/8" female JIC 37° swivel | |
| 1/2" Hose x 1/2" JIC 37° Female Hydraulic Hose End Swivel Crimp Fitting 12 Pack | $45.99 | 12 | 1/2" female JIC 37° swivel | |
| 10-Pack 3/4" Hose x 3/4" Male JIC Hydraulic Fittings, Carbon Steel | $47.14 | 10 | 3/4" male JIC |
Decision matrix
- You need a 1/2" NPTF male thread end for 1/2" I.D. hose: choose the 12-pack NPTF male set.
- You need a 3/8" female JIC 37° swivel end for 3/8" I.D. hose: choose the 12-piece 3/8" JIC female swivel pack.
- You need a 1/2" female JIC 37° swivel end for 1/2" I.D. hose: choose the 12-pack 1/2" JIC female swivel set.
- You need a 3/4" male JIC end for 3/4" I.D. hose: choose the Haichy 10-pack.
Product notes
12-Pack 1/2" Hose x 1/2" NPTF Male Pipe Thread Hydraulic Hose End Crimp Fittings

Choose this set when you need a 1/2" NPTF male thread end for 1/2" I.D. hydraulic hose. It's a 12-pack with a protection cover and silver finish, and it carries the lowest listed price in this group. The NPTF external thread is a pipe thread rather than a flare seat, so it won't mate with the JIC 37° female swivel ends in the other packs. That's the limitation: if your system uses flare connections, the NPTF thread family won't seal against them. It's the right pack when your ports are NPTF.
12pcs 3/8" Hose x 3/8" JIC 37° Female Hydraulic Hose End Swivel Crimp Fittings

For 3/8" I.D. hydraulic hose, this 12-piece set supplies a 3/8" female JIC 37° swivel end on each fitting. The swivel half rotates, which helps when the hose can't be turned during installation, and the 37° flare seat is the standard JIC sealing surface. The limitation is the size and gender: the 3/8" female swivel end only matches 3/8" JIC male ports, so it won't cover 1/2" or 3/4" lines. It's also one of two 12-count JIC packs in the lineup, so the choice between them comes down to hose diameter. If your lines are 3/8", this is the fit.
1/2" Hose x 1/2" JIC 37° Female Hydraulic Hose End Swivel Crimp Fitting 12 Pack

This 12-pack is the JIC match for 1/2" I.D. hose, with a 1/2" female JIC 37° swivel end and a flare seat that seals through line contact between the male flare and female cone. The swivel end keeps the hose from twisting while you tighten. The trade-off is that it's designed around a male JIC port on the other side; it won't attach directly to NPTF pipe threads. It's also the larger of the two 12-count JIC sets here, so you'd pair it with 1/2" lines rather than 3/8" lines. If your system is JIC and your hose is half-inch, this pack is the right size.
10-Pack 3/4" Hose x 3/4" Male JIC Hydraulic Fittings, Carbon Steel

The only 3/4" option in the comparison, this Haichy 10-pack uses a 3/4" male JIC end and carbon steel construction. A fixed solid male end helps avoid hose torsion during installation, and the zinc-plated finish is intended to resist rust. The limitation is the pack count: 10 fittings means fewer spares than the 12-count sets if you're outfitting a multi-connection system. It's also a male end, so you'll need a female JIC port or adapter. For 3/4" JIC lines, this is the only set here that fits.
Final recommendation by use case
Start with the thread family. For NPTF pipe-thread systems with 1/2" hose, buy the 12-pack NPTF male set. For JIC 37° flare systems, choose by hose size: the 3/8" female swivel pack for 3/8" lines, the 1/2" female swivel pack for 1/2" lines, and the Haichy 3/4" male JIC 10-pack for 3/4" lines. The $5.15 spread from the least to most expensive pack is small compared with buying a set that won't connect, so thread and size should drive the final call.