Description
229‑2712 Shaft Seal
229‑2712 (2292712) shaft seal is a critical engine sealing component for Caterpillar heavy‑duty engines. This shaft seal prevents engine oil leakage, blocks dust and contaminants, safeguards crankshaft and rotating internal assemblies, and minimizes unexpected downtime for excavators, wheel loaders and other construction equipment.
Compatible Engines
Direct fit for the following CAT engine models:
CAT 3054
CAT 3056E
CAT 3114
CAT C4.4
CAT C6.6
Key Features & Benefits
High‑grade composite material: Constructed from premium elastomer rubber and sturdy metal shell. Delivers outstanding resistance against high temperature, engine oil, abrasion and continuous vibration under harsh job‑site environments. Maintains stable sealing performance during long‑duration heavy‑load operations.
Precision dimensional manufacturing: Produced with strict dimensional standards for part number 229‑2712. Perfectly matches shaft and housing bore, no modification required during installation. Optimized sealing lip reduces rotational friction to avoid premature lip wear.
Dual‑direction protection performance: Creates reliable sealing barrier to stop oil seepage, while keeping sand, dirt and moisture out of engine interior. Prevents crankcase oil loss and component abrasion that may trigger expensive engine overhaul.
Reinforced structural stability: Robust metal shell resists deformation caused by engine pressure fluctuation. Good anti‑aging and anti‑cracking property to secure long service intervals for construction and industrial equipment.
Practical spare‑part solution: Reliable sealing performance with competitive cost. Well‑suited for machinery repair shops, fleet maintenance and equipment owners to lower overall maintenance expenditure.
Product Specifications
Part Number: 229‑2712 / 2292712
Product Type: Shaft Oil Seal
Condition: Brand new
Application: CAT 3054, 3056E, 3114, C4.4, C6.6 engine
Function: Shaft sealing, prevent oil leakage and foreign substance ingress
Notes
Please verify part number and engine model before order to confirm compatibility. Improper installation may result in oil leakage and short service life, professional installation is recommended.
Every unit is inspected prior to shipment, supporting both retail and wholesale for machinery spare‑parts business.





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