V2203 Valve Seat Set includes intake and exhaust seat rings for cylinder head rebuilding and B2B excavator engine parts sourcing.
The V2203 Valve Seat Set YNF18987 is supplied for compatible diesel engine cylinder-head repair and rebuilding. Intake and exhaust valve seat rings are installed in the cylinder head to provide the contact surfaces against which the valves close. When correct contact is achieved, combustion sealing is supported and heat from the valves can be transferred into the cylinder head.
Valve seats are commonly inspected during cylinder-head overhaul together with intake valves, exhaust valves, valve guides, and valve stem seals. Excessive wear, burning, cracking, or unsuitable seating surfaces may require replacement or machining.
For B2B buyers, the V2203 Valve Seat Set should be confirmed by engine model, intake and exhaust position, outside diameter, inside diameter, thickness, seat profile, and existing-part photos. Accurate matching helps rebuilders reduce machining problems, incorrect inventory, customer returns, and repeated international freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF18987 |
| Product Name | Intake & Exhaust Valve Seat Set |
| Alternative Name | Valve Seat Ring / Valve Seat Insert / Cylinder Head Seat |
| Product Type | Diesel Engine Cylinder Head Component |
| Parts Category | Engine / Cylinder Head & Valve Train Parts |
| Engine Model | V2203 |
| Included Components | Intake Valve Seat + Exhaust Valve Seat |
| Exact Quantity | To Be Confirmed by Supply Specification |
| Main Function | Valve Sealing Surface and Heat Transfer Support |
| Application | Compatible V2203 Diesel Engine |
| Installation | Cylinder Head / Intake & Exhaust Valve Area |
| Material | To Be Confirmed by Product Specification |
| Typical Service | Cylinder Head Reconditioning / Engine Overhaul |
| Fitment Check | Engine Model / OD / ID / Thickness / Seat Profile / 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 Seating | Provides the contact surface for the intake valve |
| Exhaust Valve Seating | Provides the contact surface for the exhaust valve |
| Cylinder Head Rebuild | Suitable for professional head reconditioning |
| Combustion Sealing | Supports sealing when matched correctly with compatible valves |
| Valve Replacement | Can be renewed together with intake and exhaust valves |
| Engine Rebuild Workshop | Suitable for professional diesel engine repair |
| B2B Parts Stocking | Practical for wholesalers, dealers, and importers |
Q: What is included in YNF18987?
A: It is identified as a set of V2203 intake and exhaust valve seat rings. Exact quantities should be confirmed before ordering.
Q: What does a valve seat do?
A: It provides the contact surface for the valve when closed and supports combustion sealing.
Q: Are intake and exhaust valve seats always identical?
A: Not necessarily. Their dimensions or profiles may differ, so the installation position should be confirmed.
YNF Machinery supplies V2203 valve seat sets and related cylinder-head components for diesel engine rebuilders, machinery repair workshops, wholesalers, dealers, and international importers.
The YNF18987 intake and exhaust valve seat set is intended for compatible V2203 cylinder-head rebuilding. Because valve seat rings can differ in outside diameter, inside diameter, thickness, profile, and intake/exhaust position, dimensional confirmation is recommended before quantity purchasing.
Professional buyers can provide the V2203 engine model, required quantity, seat dimensions, removed-part photos, and related valve information for matching.
Intake valves, exhaust valves, valve guides, valve stem seals, cylinder-head gaskets, rocker-arm parts, and other V2203 overhaul components can also be consolidated into the same inquiry, helping B2B buyers reduce incomplete rebuild orders and repeated freight.
