1653931 Bolt-Hex Fits Caterpillar Models
1653931 Bolt-Hex Fits Caterpillar Models
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One New Aftermarket Replacement Hex Head Cap Screw (Bolt) Fits Caterpillar (Fits CAT) Equipment
This aftermarket replacement hex head cap screw Fits Caterpillar (Fits CAT) OEM part number 1653931 and cross-reference 0S1571. It is a 3/8"-16 UNC coarse-thread hex head bolt finished with a phosphate and oil coating for corrosion resistance, used across a wide range of Fits Caterpillar construction equipment, engines, and machinery.
Specifications
- Thread Size: 3/8"-16 UNC (Coarse Thread)
- Total Length: 1-3/4 in (44.45 mm)
- Grip Length: 0.75 in (19.05 mm)
- Head Height: 0.29 in (7.37 mm)
- Hex Size: 0.56 in (14.29 mm)
- Grade: 8 / Steel, 1035 MPa Min Tensile Strength (Rc 33-39)
- Finish: Phosphate and Oil Coated
- Weight: 0.05 lbs
Compatible Models
Fits Caterpillar Engines: 3208, 3304, 3304B, 3306, 3306B, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3412, 3412C, 3412D, 3412E, 3456, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C-15, C-16, C-18, D379B, D398B, D399, G3508, G3512, G3516, G3516B, G3520B
Fits Caterpillar Wheel Tractors / Scrapers: 621B, 621E, 621F, 621G, 623E, 623F, 623G, 627B, 627E, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 657B
Fits Caterpillar Motor Graders: 120G, 16G, 16H NA
Fits Caterpillar Excavators / Other Equipment: 225, 227, 235, 245, 330 FM L
Replaces Part Number(s):
1653931, 0S1571, 0S-1571
Aftermarket Interchange Numbers
PAI 340031, 1A4783, 1D4546, 5D0542, CA0S1571, 5S7383
New aftermarket replacement part - not remanufactured, not used.



