6Y1421 Pin for Caterpillar Equipment

6Y1421 is a straight pin used on Caterpillar track-type tractors, excavators, and track-type loaders. The part is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The pin is listed for Caterpillar equipment models including the 3S, 3, 3P, 53, 5A, D1, D2, D3, D3B, D3C, D3C II, D3C III, D3G, D3K, D3K LGP, D3K XL, D3K2 LGP, D3K2 XL, D4C, D4C II, D4C III, D4G, D4K LGP, D4K XL, D4K2 LGP, D4K2 XL, D5C, D5C III, D5C PAT, D5C PATLGP, D5G, D5K XL, D5K LGP, D5K2 LGP, and D5K2 XL series, as well as the 315C, 315D L, and 931 models.

Fitment

• Track-type tractors: 3S, 3, 3P, 53, 5A
• Track-type tractors: D1, D2, D3, D3B, D3C, D3C II, D3C III, D3G
• Track-type tractors: D3K, D3K LGP, D3K XL, D3K2 LGP, D3K2 XL
• Track-type tractors: D4C, D4C II, D4C III, D4G
• Track-type tractors: D4K LGP, D4K XL, D4K2 LGP, D4K2 XL
• Track-type tractors: D5C, D5C III, D5C PAT, D5C PATLGP, D5G
• Track-type tractors: D5K XL, D5K LGP, D5K2 LGP, D5K2 XL
• Excavators: 315C, 315D L
• Track-type loaders: 931

Cross-reference numbers

• 6Y-1421
• 6Y1421

Specifications