X10019108 Valve Stem Seal Oil Control Rubber Seal For JAC YND25TCIF Diesel Engine Valve Guide Lubrication Parts
Product Details
| OEM: | X10019108 | Vehicle Model: | YND25TCIF |
|---|---|---|---|
| Size: | 5*14/23*15 | ||
| Highlight |
Valve Stem Seal for JAC Truck,X10019108,X10019108 Valve Stem Seal |
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Product Description
X10019108 Valve Stem Seal is a tiny but critical sealing sleeve installed on valve guide of JAC YND25TCIF diesel engine. It controls the amount of lubricating oil flowing onto moving valve stem, preventing excessive oil from slipping into intake and exhaust passages while retaining a thin protective oil film to reduce sliding friction. This aftermarket seal solves stubborn blue smoke emission, rising oil consumption and carbon accumulation on valve seats caused by seal aging, hardening and lip deformation after long working hours and temperature cycling. Accurate oil metering protects combustion cleanliness and cuts frequent top-up work for JAC light commercial vehicles running city delivery and regional short-haul logistics.
Product Advantages Made of high-performance fluorine rubber composite material, featuring excellent heat resistance, oil resistance and anti-aging property. Precision molded sealing lip maintains stable contact pressure on valve stem. Built-in spring ring keeps lip tight against stem surface under variable temperature. Every valve stem seal is sampled for elasticity and dimensional check before packing, OEM inner diameter and profile for easy installation during valve service.
| Item | Parameter |
|---|---|
| Part Number | X10019108 |
| Product Name | Valve Stem Seal |
| Matching Engine | JAC YND25TCIF |
| Material | Fluorine Rubber With Retaining Spring |
| Feature | Oil Flow Limiting, Anti-Oil Leakage, High Temperature Tolerance, Elastic Sealing Lip |
| MOQ | Negotiable |
| Application | Valve stem lubrication regulation and oil isolation from combustion chamber assembly |
Applicable Models Fit for JAC light-duty trucks and cargo vans equipped with YND25TCIF diesel engine, widely used for urban parcel delivery and suburban freight transport.
FAQ
Q1: What obvious symptom points to failed valve stem seals?
A1: Blue smoke puffs out especially at startup or deceleration, accompanied by frequent engine oil level drop.
Q2: What risk appears if too much oil passes worn stem seals?
A2: Oil burns inside cylinder, forms heavy carbon deposits and triggers valve sticking over time.
Q3: Is there any trick to avoid damaging the sealing lip during installation?
A3: Use a dedicated sleeve guide tool, never push the seal directly over sharp valve head edges.
Q4: Should we replace all stem seals together even if only one shows leakage?
A4: Yes, seals age uniformly; replacing the full set avoids repeated disassembly of cylinder head.
Product Highlights
X10019108 Valve Stem Seal is a tiny but critical sealing sleeve installed on valve guide of JAC YND25TCIF diesel engine. It controls the amount of lubricating oil flowing onto moving valve stem, preventing excessive oil from slipping into intake and exhaust passages while retaining a thin protective ...
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