ISUZU 4BD1 Rocker Shaft Assembly Zevs Brand OEM 8941295510 Rocker Arm Shaft Assembly for 4BG1 Engine
Key Attributes
Product Summary
Product Overview Rocker Arm Shaft Assembly WDL11-028 for ISUZU 4BG1 / 4BD1 — OEM 8941295510 / 8-94129-551-0, Zevs brand, ISO/TS16949. The rocker arm shaft assembly with part number WDL11-028 is a Zevs-brand replacement for ISUZU 4BG1 and 4BD1 diesel engines, cross-referenced to OEM 8941295510 / 8...
Product Details
ISUZU 4BD1 Rocker Shaft Assembly
,Zevs Brand Rocker Arm Shaft
,OEM 8941295510 Rocker Shaft Assembly
Rocker Arm Shaft Assembly WDL11-028 for ISUZU 4BG1 / 4BD1 — OEM 8941295510 / 8-94129-551-0, Zevs brand, ISO/TS16949.
The rocker arm shaft assembly with part number WDL11-028 is a Zevs-brand replacement for ISUZU 4BG1 and 4BD1 diesel engines, cross-referenced to OEM 8941295510 / 8-94129-551-0. This assembly carries the rocker arms and transfers camshaft motion to the valve train, directly affecting valve timing and engine breathing.
- ✅ OEM Cross-Reference Confirmed: WDL11-028 maps to 8941295510, 8-94129-551-0, 8972222450, 8-97222-245-0 across Zevs and supplier catalogs.
- ✅ Application Confirmed: ISUZU 4BG1 / 4BD1 engines.
- ✅ Brand: Zevs (Russian aftermarket brand).
- ✅ Certification: ISO/TS16949 listed by one supplier for the IZUMI equivalent.
- ⚠️ Vladivostok Stock: No search result confirms stock in Vladivostok for this exact part. One listing shows a related Zevs rocker shaft (WDL11-019) available in Vladivostok, but not WDL11-028.
- ⚠️ Installation Success Rate / Durability: No public test data.
- Ticking or tapping noise from valve cover area, increasing with engine speed
- Rough idle or misfire due to incorrect valve lift
- Excessive valve clearance that cannot be adjusted out
- Visible wear or scoring on shaft journals or rocker arm bores
- Oil starvation to valve train components (blocked oil passages in shaft)
| Part Number | WDL11-028 |
| Product Name | Rocker Shaft Assembly |
| Car Model | ISUZU |
| Engine Model | 4BD1 |
| 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 |
|---|---|
| Zevs brand aftermarket | Established Russian aftermarket brand for ISUZU/Hino/Mitsubishi engine parts — confirmed by multiple Russian parts platforms |
| OEM cross-reference 8941295510 | Interchangeable with original ISUZU number — confirmed across Zevs catalog and supplier listings |
| Complete assembly with rocker arms | Direct replacement, no need to transfer individual rockers — listed as "assembled with rocker arms" |
| 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 |
- 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 | Method | Status |
|---|---|---|
| Shaft journal diameter / roundness | Micrometer / CMM | To be confirmed by supplier |
| Rocker arm bore clearance | Bore gauge | To be confirmed |
| Material hardness | Rockwell / Brinell | To be confirmed |
| Oil passage flow | Flow test | To be confirmed |
| Surface finish | Profilometer | To be confirmed |
- Remove valve cover; inspect old shaft for wear and oil passage blockage.
- Mark rocker arm positions before disassembly — do not mix intake/exhaust.
- Remove rocker shaft mounting bolts in reverse of tightening sequence.
- Clean head mating surface; check pushrod and valve tip wear.
- Install new assembly; torque bolts in factory sequence — refer to ISUZU 4BD1/4BG1 service manual (torque value not found in search results).
- Adjust valve clearance per engine spec.
- Run engine; check for ticking and oil flow to rocker area.
Maintenance: Inspect valve clearance every 20,000 km. Check rocker shaft oil passages at every valve adjustment.
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