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Metal‑reinforced fluorine rubber structure, excellent oil‑resistant and high‑temperature resistant property
Precise inner‑hole dimension, closely fit valve stem to control engine oil consumption
Resist aging under long‑time high‑temperature exhaust environment
Reduce oil entering combustion chamber, prevent blue smoke exhaust
Important sealing spare parts for valve and cylinder head overhaul
Product Description
This valve stem seal set is manufactured for Komatsu DA640 diesel engine. Installed on intake and exhaust valve guides, it limits oil flowing into combustion chamber, avoids oil burning and blue smoke. Widely used for heavy‑duty excavators, bulldozers, mining machinery and generator‑set engine rebuild.
We supply parts for Kubota, Cumm ins, CAT, Perkins, Yanmar, Isuzu, Komatsu, Mitsubishi, Hino, Nissan, Vol vo, Deutz, Doosan, Daewoo, John Dee re, 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 verify local customs regulations in advance.
FAQ
Q1: Which engine fits this valve stem seal set? A: It fits Komatsu DA640 diesel engine.
Q2: What symptoms of worn valve stem seals? A: Blue smoke from exhaust pipe, excessive engine oil consumption, carbon deposit on piston and valve.
Q3: Installation tips? A: Do not scratch seal lip during installation, use special valve‑seal installing tool, check valve guide wear condition first.
Manufacturer Supported Models
Isuzu:4BG1,4HK1,6BD1,6BG1,6HK1,6WG1
Cum mins:K19,K38,K50,M11,NT855,QSX15
Doosan:DE12T,DB58,D24,D34,DL06,DL08
Yanmar:6CH,6CX,6EY18,4TNV106,6TNV106,6TNE106
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Ecer Certification：
Verified Supplier
Guangzhou Tianhe District Qianjin Yiling Machinery Parts Business Department, established in 2013, is a professional supplier focusing on high-performance engine repair kits and cylinder gaskets for construction machinery excavators, boasting solid capabilities in both standard product supply and cu... Guangzhou Tianhe District Qianjin Yiling Machinery Parts Business Department, established in 2013, is a professional supplier focusing on high-performance engine repair kits and cylinder gaskets for construction machinery excavators, boasting solid capabilities in both standard product supply and cu...
