M11 ISM QSM11 KTA19 Valve Stem Seal 3328781 Diesel Engine Spare Parts

Keywords: 3328781, Valve Stem Seal, Engine Valve Oil Seal, M11 Valve Stem Seal, ISM QSM11 KTA19 Engine Parts, Excavator Diesel Spare Parts

🔹Product Overview

The valve stem seal 3328781 is a tiny yet critical sealing component for cumm-ins M11, ISM, QSM11, KTA19 diesel engines. Installed on intake and exhaust valve stems, it precisely controls lubricating‑oil flow onto the valve guide, prevents excessive engine oil from leaking into combustion chamber, and avoids blue smoke, oil burning and carbon buildup on valves. This aftermarket replacement valve stem seal effectively fixes common failures like burning oil, blue exhaust smoke, shortened spark‑plug service life and valve‑stem abrasion. It is an essential spare‑part for engine top‑end overhaul, cylinder‑head maintenance and valve system repair for heavy‑duty excavators, trucks and construction machinery.

🔹Detailed Specifications

🔹Key Features & Advantages

• Exact OEM‑Matching Installation Precision‑manufactured dimension, fits valve stem and valve guide perfectly, direct installation without modification.
• Premium High‑Temperature‑Resistant Rubber Material High‑quality fluororubber material, outstanding heat‑resistance, oil‑resistance and ageing‑resistance, long‑term stable performance under high‑temperature cylinder‑head environment.
• Excellent Sealing Performance Uniform elasticity, stable sealing effect, effectively prevent engine‑oil leakage and oil‑burning problems.
• Strict Multi‑Step Factory Quality Inspection Each batch of valve stem seals passes dimension inspection, hardness test and high‑temperature oil‑soaking ageing test before delivery.
• Cost‑Effective Engine Maintenance Solution Replace faulty valve stem seals in time to eliminate blue‑smoke exhaust, cut oil consumption, and prevent secondary carbon‑deposit damage to valves and pistons.

🔹Application Scope

Compatible Equipment List:

• cumm-ins M11 Diesel Engine
• cumm-ins ISM Diesel Engine
• cumm-ins QSM11 Diesel Engine
• cumm-ins KTA19 Diesel Engine
• Excavators, heavy trucks and construction machinery equipped with above‑mentioned cumm-ins engines requiring part number 3328781

🔹Our Company Advantage

We are a professional supplier of comprehensive excavator and heavy‑duty machinery spare‑parts. We provide valve stem seals, full gasket kits, cylinder head parts, piston kits, fuel injectors, oil pumps, water pumps, sensors, solenoid valves, hydraulic spare‑parts and engine overhaul kits for cumm-ins, Komatsu, Cater-pillar, Kobelco, Hyundai, Hitachi, Doosan, Sany, Isuzu and other well‑known machinery brands.

• Large ready‑to‑ship inventory for engine sealing spare‑parts
• Factory‑direct competitive wholesale price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

🔹Packaging & Shipping

• Inner foam shock‑absorbing protection, sealed plastic bag to avoid dust and moisture
• Outer reinforced export carton to prevent damage during long‑distance sea & land transport
• Multiple shipping options: sea freight, air freight, international express for small trial orders
• Export documents including Commercial Invoice, Packing List are available

🔹Contact Us

If you need more cumm-ins engine sealing parts, engine overhaul accessories or other heavy machinery replacement spare‑parts, please send your parts list over to us. We will offer you our best quotation promptly.