V2203 Intake and Exhaust Valve Guide Set supports accurate valve-stem movement for diesel rebuilding and B2B excavator engine parts sourcing.
The V2203 Intake and Exhaust Valve Guide Set YNF18986 is used in compatible diesel engine cylinder heads to guide the movement of intake and exhaust valve stems. The guides help the valves remain correctly aligned as they repeatedly open and close during engine operation.
Because the valve stem moves inside the guide, correct clearance is important. Excessive guide wear may allow unwanted valve movement and can affect valve seating, stem-seal performance, and cylinder-head rebuilding quality. Valve guides are therefore commonly inspected together with valves, valve seats, and valve stem seals during cylinder-head overhaul.
For B2B buyers, YNF18986 should be confirmed by V2203 engine model, intake and exhaust guide dimensions, inside diameter, outside diameter, overall length, and existing-part photos. Accurate matching helps rebuilders and distributors reduce machining problems, incorrect stock, and delays caused by incompatible cylinder-head components.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF18986 |
| Product Name | Intake & Exhaust Valve Guide Set |
| Alternative Name | Valve Guide / Valve Stem Guide / Valve Guide Bush |
| Product Type | Diesel Engine Cylinder Head Component |
| Parts Category | Engine / Valve Train & Cylinder Head Parts |
| Engine Model | V2203 |
| Included Components | Intake Valve Guide + Exhaust Valve Guide |
| Exact Quantity | To Be Confirmed by Supply Specification |
| Main Function | Guides Valve Stem Movement and Maintains Alignment |
| Application | Compatible V2203 Diesel Engine |
| Installation | Cylinder Head / Intake & Exhaust Valve Area |
| Material | To Be Confirmed by Product Specification |
| Typical Service | Cylinder Head Repair / Valve Train Overhaul |
| Fitment Check | Engine Model / ID / OD / Length / Valve Stem Size / Existing Part Photo |
| Quality Type | Aftermarket Replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Set |
| Shipping Method | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application | Description |
|---|---|
| V2203 Diesel Engine | Used in compatible cylinder-head assemblies |
| Intake Valve Guidance | Supports controlled movement of the intake valve stem |
| Exhaust Valve Guidance | Supports alignment of the exhaust valve stem |
| Cylinder Head Rebuild | Commonly checked during cylinder-head repair |
| Valve Replacement | Can be renewed together with intake and exhaust valves |
| Valve Clearance Repair | Suitable when excessive guide-to-stem clearance is identified |
| Engine Rebuild Workshop | Practical for professional diesel engine servicing |
| B2B Parts Stocking | Suitable for wholesalers, dealers, and importers |
Q: What is YNF18986?
A: It is identified as a V2203 intake and exhaust valve guide set.
Q: What does a valve guide do?
A: It guides the valve stem during opening and closing and helps maintain correct valve alignment.
Q: Are intake and exhaust guides included?
A: The product is identified as an intake-and-exhaust guide combination. Exact quantities should be confirmed before ordering.
YNF Machinery supplies V2203 intake and exhaust valve guides and related cylinder-head parts for diesel engine rebuilders, machinery repair workshops, dealers, wholesalers, and international importers.
The YNF18986 valve guide set is intended for compatible V2203 cylinder-head repair. Because intake and exhaust guides may differ by position or dimensions, professional buyers should confirm the required configuration before purchasing in quantity.
Buyers can provide the V2203 engine model, required quantity, guide inside and outside diameters, overall length, valve-stem measurements, and clear photos of the removed components for matching.
Intake valves, exhaust valves, valve seats, valve stem seals, rocker-arm parts, cylinder-head gaskets, and other V2203 overhaul components can also be consolidated into the same inquiry to simplify B2B purchasing.
