Product Description
Yale OEM hex jam nut, 7/8-14 UNF thread, manufactured in hardened carbon steel, Grade 8, for electric lift truck axle and linkage assemblies. Direct replacement for multiple Yale and cross-reference part numbers in major OEM lift truck fleets.
Specifications
Part Information
| Part Number | YL 580015511 |
| Alternate Part Number | YT580015511 |
Thread Specifications
| Thread Size | 7/8-14 UNF |
| Fastener Type | Hex Jam Nut |
Material & Construction
| Material Specification | Case-hardened carbon steel |
| Steel Grade | Grade 8 per SAE J995 |
| Hardness | Rockwell C33–C39 |
| Finish | Plain (uncoated) |
Cross-Reference Part Numbers
| Cross Reference Part Numbers | 00591-04481-81 (Toyota), 0076863 (Hyster), 0088540 (Hyster), 0099310 (Hyster), 014968800 (Yale), 0218990 (Hyster), 0219754 (Caterpillar), 0329884 (Caterpillar), 0576158 (Perkins), 060021-019 (Crown), 060021-19 (Crown), 08D000014 (Bobcat), 0920439 (Komatsu), 1026-0014 (LPM), 11486-14 (BT), 1201904 (Caterpillar), 13D14 (Clark), 14164660 (Jungheinrich), 1458439 (Hyster), 15034 (Hyster), 15D000005 (Clark), 15D00005 (Clark), 16587 (Hyster), 17410 (Hyster), 17460 (Hyster), 218990 (Hyster), 219754 (Caterpillar), 220050376 (Yale), 256853 (Clark), 2711 (Linde), 300546-000 (BT), 305134 (Cushman), 3054200 (Hyster), 3094830 (Hyster), 313666-116 (BT), 329884 (Caterpillar), 4209430584 (Multiton), 45300-18 (Barrett), 4530-018 (Nissan), 50030900 (Yale), 5436124 (Still), 5722 (Cascade), 576/158 (Perkins), 576158 (Perkins), 58892 (Caterpillar), 58893 (Caterpillar), 60021-019 (Crown), 60021-19 (Crown), 6357 (Caterpillar), 648304 (Clark), 750-461 (Raymond), 750-461P (Raymond), 76863 (Hyster), 800075837 (TVH), 800124454 (TVH), 853386 (Clark), 85S801 (Clark), 865801 (Clark), 86F000007 (Bobcat), 86F000007B (Bobcat), 86F7 (Bobcat), 88450 (Hyster), 88540 (Hyster), 898447 (Clark), 8D000014 (Clark), 8D000014B (Bobcat), 8D00014 (Clark), 8D14 (Bobcat), 8D1400H (Clark), 8D14E (Clark), 8D14J (Clark), 920439 (Komatsu), 941085 (Clark), 942147 (Clark), 950936 (Clark), 99310 (Hyster), A2711014 (Linde), C5722 (Cascade), C-5722 (Cascade), DS223024 (Raymond), E-2262 (Intrupa), LA2711014 (Linde), LA2711-014 (Linde), LM4ABD5121 (Caterpillar), LM4AB-D5121 (Caterpillar), SY43288 (TVH), SY45273 (TVH) |
| Superseded Replaces | 014968800 (Yale), 220050376 (Yale), 50030900 (Yale) |
Application
| Equipment Type | Electric lift truck and pallet jack axle and linkage assemblies |
| Compatible Manufacturers | Yale, Hyster, Toyota, Crown, Clark, Caterpillar, Bobcat, Komatsu, BT, Linde, Raymond, Perkins, Nissan, Jungheinrich, and others |
Frequently Asked Questions
Q: What are the specifications for the YL 580015511 hex jam nut?
A: The YL 580015511 is a 7/8-14 UNF hex jam nut manufactured from Grade 8 hardened carbon steel. OEM Yale part with alternate number YT580015511.
Q: What lift truck applications use the YL 580015511?
A: The YL 580015511 is designed for Yale electric lift truck axle and linkage assemblies. Cross-references include Toyota (00591-04481-81), Hyster (0076863, 0088540, 0099310, 0218990), Caterpillar (0219754, 0329884), Crown (060021-019), and Perkins (0576158), making it compatible across major OEM fleets.
Q: Why is Grade 8 hardened carbon steel important for this hex jam nut?
A: Grade 8 hardened carbon steel provides superior tensile strength and resistance to loosening under vibration and load cycling. This is critical for axle and linkage fastening where joint integrity directly affects safety and handling performance.
Q: Is the YL 580015511 a direct replacement for older Yale part numbers?
A: Yes. The YL 580015511 is a direct OEM replacement. Verify thread size (7/8-14 UNF) and diameter match your equipment before ordering to confirm fitment.
Q: How often should hex jam nuts like the YL 580015511 be replaced?
A: Hex jam nuts are typically replaced when visual inspection reveals stripping, corrosion, or deformation, or if threaded fasteners repeatedly loosen during service. Grade 8 material resists degradation but should be checked during routine linkage maintenance.