CATERPILLAR
WQParts carries a dedicated range of Hercules sealing products for Caterpillar machinery. From rod and piston seals to complete hydraulic cylinder seal kits, these components are designed to match OEM performance while helping you control repair costs. If you maintain excavators, loaders, dozers, or other heavy equipment, Hercules seals from WQParts give you reliable sealing, strong uptime, and support from a team that understands the demands of real‑world jobsites.
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8U4125 Seal Kit | Caterpillar Replacement PartsSpecial Price $2.43 Regular Price $2.86Caterpillar 8U4125 Seal Kit
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8U1958 Seal Kit | Caterpillar Replacement PartsSpecial Price $10.06 Regular Price $11.84Caterpillar 8U1958 Seal Kit
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8T9529 Seal Kit | Caterpillar Replacement PartsSpecial Price $0.78 Regular Price $0.92Caterpillar 8T9529 Seal Kit
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8T9527 Seal Kit | Caterpillar Replacement PartsSpecial Price $6.56 Regular Price $7.72Caterpillar 8T9527 Seal Kit
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8T9522 Seal Kit | Caterpillar Replacement PartsSpecial Price $1.16 Regular Price $1.36Caterpillar 8T9522 Seal Kit
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8T9042 Seal Kit | Caterpillar Replacement PartsSpecial Price $371.37 Regular Price $436.90Caterpillar 8T9042 Seal Kit
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8T8434 Seal Kit | Caterpillar Replacement PartsSpecial Price $3.27 Regular Price $3.85Caterpillar 8T8434 Seal Kit
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8T8394 Seal Kit | Caterpillar Replacement PartsSpecial Price $37.94 Regular Price $44.64Caterpillar 8T8394 Seal Kit
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8T8389 Seal Kit | Caterpillar Replacement PartsSpecial Price $31.47 Regular Price $37.02Caterpillar 8T8389 Seal Kit
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8T8382 Seal Kit | Caterpillar Replacement PartsSpecial Price $12.45 Regular Price $14.65Caterpillar 8T8382 Seal Kit