0S1577 Bolt Fits Caterpillar Models

One New Aftermarket Replacement Hex Head Bolt for Caterpillar (Cat) Construction and Agricultural Equipment

This aftermarket replacement 0S-1577 bolt is a 5/8"-18 x 2-1/4" hex head fastener used across a wide range of Caterpillar (Cat) equipment including track-type tractors, wheel loaders, motor graders, and wheel tractor-scrapers. It is a high-strength carbon steel fastener with a zinc phosphate and oil coating for corrosion resistance, meeting SAE J429 Grade 8 specifications.

Specifications

• Bolt Type: Hex Head
• Thread Size: 5/8"-18 (UNF)
• Hand of Thread: Right-Hand (RH)
• Bolt Length: 2.25 in (57.15 mm)
• Grip Length: 0.75 in (19.05 mm)
• Material: Carbon Steel
• Coating: Zinc Phosphate + Oil
• Grade: SAE J429 Grade 8 (150 ksi)

Compatible Models

Caterpillar Track-Type Tractors: D4E, D5, D5B, D5E, D5H, D6C, D6D, D6D SR, D6E, D6E SR, D6F SR, D6G SR, D6H, D6R, D7F, D7G, D7G2, D8H, D8K, D8L, D9E, D9G, D9H, D9L

Caterpillar Wheel Tractor-Scrapers: 621, 621B, 621E, 621R, 621S, 623B, 623E, 627, 627B, 627E, 631D, 631E, 633D, 637D, 637E, 639D, 641B, 651B, 651E, 657B, 657E, 660B, 666B

Caterpillar Wheel Loaders: 916, 920, 926, 926E, 930, 930R, 930T, 950B, 950B/950E, 950E, 966C, 966D, 966E, 980B, 980C, 980F, 980F II, 980G, 980G II, 980H, 986, 986H, 986K, 988, 988G, 988GC, 988H, 988K

Replaces Part Number(s):

0S1577, 0S-1577

New aftermarket replacement part - not remanufactured, not used.