8PCS Valve Stem Oil Seals for CAT 3304 Diesel Engine

• Applicable Engine: CAT 3304 4-cylinder diesel engine
• Product Name: Valve Stem Oil Seal Set
• Quantity: 8 pieces per complete set
• Material: High temperature resistant wear-proof rubber composite
• Structure: Integrated single-lip sealing design
• Condition: 100% brand new, size fully matched for direct replacement

1. Heat-resistant rubber material adapts to long-time high-temperature operation of CAT 3304 engine, resistant to engine oil erosion and thermal aging
2. Compact stepped structure fits tightly on valve stem and valve guide, precisely control lubricating oil flow into combustion chamber
3. Effectively solve blue exhaust smoke, abnormal oil consumption and piston carbon deposition caused by aging valve oil seals
4. 8-piece full set perfectly matches 4-cylinder 8-valve structure of CAT 3304 engine, ideal for cylinder head overhaul one-time replacement

These valve stem oil seals are installed on the valve guides of CAT 3304 engine cylinder head, used to isolate valve train lubricating oil from combustion chamber. Worn or hardened valve oil seals will lead to engine oil burning inside cylinders, resulting in blue smoke emission, frequent oil level drop and accelerated wear of valves and pistons. They are indispensable small sealing consumables during cylinder head disassembly, valve grinding and full engine rebuild.

We supply parts for Kubota, Cumm ins, CAT, Perkins, Yanmar, Isuzu, Komatsu, Mitsubishi, Hino, Nissan, Vol vo, Deutz, Doosan, Daewoo, John De ere, Scania, Hyundai, JCB etc.

Shipping: Sea freight, air freight and international express are all available.

Tax Notice: All import duties and local destination taxes shall be borne by the buyer. Please confirm engine model CAT 3304 before placing order.

Blue smoke from exhaust when cold starting or accelerating, engine oil reduces rapidly without external leakage, heavy carbon buildup on piston top and valves.

Use dedicated valve seal pressing tool for vertical installation, protect the inner sealing lip from scratch by valve stem sharp edges to avoid early leakage.

Fit CAT loaders, excavators, bulldozers, stationary generator sets and industrial power units equipped with 3304 diesel engine.