Inlet Valve 5-12551028 5125510280 for ISUZU C240 Engine — OEM Cross-Reference Verified Fit
Key Attributes
Product Summary
OEM-verified ISUZU C240 inlet valve (5-12551028) in heat-resistant alloy steel. Direct-fit 40×8×115.8mm dimensions, 45° seat angle, 100% inspected. Cross-references 5125510282, 5125510300, 1876183460 for Komatsu, TCM, Hyster fleets. 6-month warranty.
Product Details
Inlet Valve ISUZU C240
,OEM 5125510280 Inlet Valve
,ISUZU C240 Engine Inlet Valve
The Inlet Valve with OEM number 5-12551028 / 5125510280 is a direct-fit replacement for ISUZU C240 diesel engines. This intake valve is a critical component of the cylinder head assembly, responsible for regulating fresh air flow into the combustion chamber during the intake stroke, supporting proper air-fuel mixing and stable engine performance.
Dimensional Verification: Head diameter 40 mm, stem diameter 8 mm, overall length 115.8 mm, seat angle 45° — confirmed against OEM reference specifications published in aftermarket catalog cross-reference data.
OEM Cross-Reference Verified: Interchanges with 5125510280, 5-12551-028-0, 5125510282, 5125510300, 1876183460. Cross-referenced against ISUZU OEM parts numbering and aftermarket interchange databases.
Application Coverage: Verified fitment for ISUZU C240 engine used across Komatsu, Sumitomo, TCM, Hyster, Yale, Denyo industrial equipment platforms including forklifts, generators, and excavators.
Material Compliance: Manufactured from heat-resistant alloy steel suitable for diesel engine intake valve operating conditions; hardness and metallurgical properties aligned with standard aftermarket replacement specifications.
- Engine idle instability or rough running, especially under load.
- Noticeable loss of engine power or reduced acceleration response.
- Abnormal intake noise or "chuffing" sound from the cylinder head area.
- Increased fuel consumption and black exhaust smoke due to poor cylinder sealing.
- Hard starting or difficulty maintaining combustion, particularly in cold conditions.
| Part Number | 5-12551028 |
|---|---|
| Product Name | Inlet Valve |
| Car Model | ISUZU C240 Engine |
| Engine Model | ISUZU C240 Engine |
| Condition | 100% Brand New |
| Weight | Standard |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
| Package | Neutral Packing Or Make It As Requested |
| Warranty | 6 Months |
| Price & Stock | Please Contact Us To Get More Information |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement |
| Quality Standard | OEM equivalent / ISO quality control |
| Feature | Benefit + Verification Signal |
|---|---|
| OEM-matched dimensions (40×8×115.8 mm) | Direct-fit replacement without modification — verified against published cross-reference dimensional data. |
| 45° seat angle | Consistent sealing surface geometry — matches OEM specification for C240 cylinder head. |
| Heat-resistant alloy steel construction | Withstands diesel intake operating temperatures — material grade selected for continuous industrial engine duty. |
| Broad cross-reference coverage | Simplifies sourcing for mixed fleets — verified interchange with 5125510282, 5125510300, 1876183460. |
| Brand | Model | Engine Code | Notes |
|---|---|---|---|
| ISUZU | FSR / FSR 500 | 6HE1 | Primary fitment per OEM number |
| ISUZU | FVR / FTR | 6HE1 (verify) | Some cross-applications reported; confirm by VIN |
⚠️ Important Fitment Notes:
HDA-008 / MC828264 are aftermarket cross-reference numbers, primarily appearing in Mitsubishi Fuso brake booster catalogs. This product is primarily oriented toward ISUZU FSR 6HE1 fitment; the above numbers are listed for customer cross-comparison.
If your vehicle is a Mitsubishi Fuso FK/FM with MC828264 booster, confirm pushrod length and mounting bolt pattern match before ordering. The "short" vs "long" pushrod variants exist within the MC828264 family.
Always provide VIN/chassis number for verification. Do not rely solely on cross-reference numbers.
| QC Item | Verification Method |
|---|---|
| Critical dimensions (head dia., stem dia., length) | 100% inspection against OEM specification tolerances |
| Seat angle | Optical comparator or angle gauge verification (45°) |
| Material hardness | Hardness testing per alloy steel batch certification |
| Surface finish (stem) | Visual and profilometer inspection for scoring or roughness |
| Packaging integrity | Corrosion-preventive wrapping and box integrity check |
Note: Specific test reports available upon request for bulk orders.
⚠️ IMPORTANT: Valve replacement requires cylinder head removal and specialized tools. Professional installation is strongly recommended. Incorrect valve clearance can cause severe engine damage.
Reference the ISUZU C240 workshop manual for exact torque values.
- Clean cylinder head and valve guide thoroughly before installation.
- Lubricate valve stem with clean engine oil before insertion.
- Verify valve stem-to-guide clearance per OEM specification.
- Adjust valve clearance to OEM specification after assembly (cold engine).
- Check compression across all cylinders after reassembly.
- Inspect valve clearance every 500–1000 hours of industrial operation or per equipment manufacturer schedule.
- Re-check clearance after the first 50 hours following any cylinder head service.
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