1783336 Nut-Hex Flange Fits Caterpillar Models

One New Aftermarket Replacement Hex Flange Nut for Caterpillar (Cat) Equipment

This aftermarket replacement hex flange nut (Caterpillar part number 1783336 / 178-3336) is a metric hardware fastener used across a wide range of Caterpillar construction, earthmoving, and material handling equipment. The integrated flange distributes load and eliminates the need for a separate washer, making it a common fastener in powertrain, chassis, and structural assemblies throughout Cat machinery.

Specifications

• Thread Size: M8
• Thread Pitch: 1.25 mm
• Thickness: 8 mm
• Wrench Size (Connecting Square): 13 mm
• Material: Equivalent to ISO Class 12 or SAE Class 8
• Coating: Galvanized zinc (96-hour salt spray rated)
• Dimensions: approx. 0.59 x 0.59 x 0.28 in.
• Weight: 0.01 lbs.

Compatible Models

Caterpillar Motor Graders: 12M 2, 12M 3, 12M 3 AWD, 120M 2, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD

Caterpillar Skid Steer Loaders: 236B, 236B3, 236D, 242B3, 242D, 246C, 246D, 252B, 252B3, 256C, 257B3, 257D, 259B3, 262C, 262C2, 262D, 268B, 272C, 272D

Caterpillar Multi-Terrain / Compact Track Loaders: 2384C, 2470C, 2484C, 2570C

Caterpillar Excavators: 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324D, 324E, 324E L, 324E LN, 329E, 329E L, 336D L, 336D2, 336D2 L, 336E, 336E H, 336E L, 336E LH, 336E LN, 336F L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 568 FM LL

Caterpillar Track-Type Tractors (Bulldozers): D6K XL, D6K2 LGP, D6N LGP, D6N OEM, D6T LGP, D6T LGPPAT, D6T XL, D7E, D7E LGP, D8T, D9T, D10T2, D11T

Caterpillar Off-Highway Trucks: 770G, 770G OEM, 772G, 772G OEM, 773E, 773G, 773G LRC, 773G OEM, 775G, 775G LRC, 775G OEM, 777G, 789D

Replaces Part Number(s):

1783336, 178-3336

New aftermarket replacement part - not remanufactured, not used.