Caterpillar 3406 C15 Front Crankshaft Seal & Sleeve | 1425867 | FP Diesel

New aftermarket front crankshaft seal and wear sleeve (part number 1425867) for Caterpillar 3406 family and C-series diesel engines. Manufactured by FP Diesel, this set includes the front crankshaft oil seal and its wear sleeve, restoring a proper front crankshaft seal. It replaces Caterpillar 142-5867.

Key Features:

• New aftermarket front crankshaft seal and wear sleeve; Caterpillar reference 1425867
• Includes the front crankshaft oil seal and wear sleeve
• Fits Caterpillar 3406A/B/C/E and C15/C16/C18 engines
• Supersedes earlier Caterpillar numbers 4P2733 and 2W1733
• Restores a proper front crankshaft oil seal

Specifications:

• Base part number: 1425867 (FP Diesel FP-1425867)
• Caterpillar reference: 142-5867
• Component type: Front crankshaft seal and wear sleeve
• Condition: New — Aftermarket (FP Diesel)
• Engine make: Caterpillar
• Engine models: 3406A, 3406B, 3406C, 3406E, C15, C16, C18
• Supersedes: 4P2733, 2W1733

Compatibility / Fitment:

• Fits Caterpillar 3406A, 3406B, 3406C, 3406E, and C15/C16/C18 diesel engines
• Includes the front crankshaft oil seal and wear sleeve
• Installs to the front of the crankshaft — a seal/sleeve installer tool is recommended for correct fitment
• Verify by engine serial before ordering
• One per engine

Conclusion:

The FP Diesel 1425867 is a new aftermarket front crankshaft seal and wear sleeve for Caterpillar 3406-family and C15/C16/C18 engines, replacing Caterpillar 142-5867 (and superseding 4P2733 and 2W1733). It includes the seal and sleeve to restore a proper front crankshaft seal. Verify by engine serial before ordering.