Brake Vacuum Booster CA100021030 for ISUZU D-MAX MUX RMLT — OEM Replacement, Verified Application
Key Attributes
Product Summary
OEM direct-fit brake vacuum booster CA100021030 for ISUZU D-MAX, MUX, RMLT. Steel housing resists heat and vibration. ISO9001-certified supplier, verified application. Safety-critical part—confirm fitment by VIN and request test data.
Product Details
Brake Vacuum Booster CA100021030
,ISUZU D-MAX MUX OEM Replacement
,Verified Application Brake Booster
The Brake Vacuum Booster with part number CA100021030 is a direct-fit replacement for ISUZU D-MAX, MUX, and RMLT models. Mounted between the brake pedal and master cylinder on the engine firewall, this booster uses engine vacuum to multiply pedal force, reducing driver effort and improving braking response.
The booster contains a diaphragm separating a vacuum chamber from a pressure chamber. When the brake pedal is pressed, a valve admits atmospheric pressure into the pressure chamber, and the pressure differential pushes the diaphragm, assisting the pushrod into the master cylinder. A failed booster results in a hard, unassisted pedal and increased stopping distance.
- VerifiedApplication Verified: Supplier listings (HOSEM, via multilingual industrial portals) consistently list CA100021030 for ISUZU D-MAX, MUX, and RMLT.
- ClaimedSupplier Certification: HOSEM lists ISO9001 certification. Request a certificate copy before relying on this claim.
- ListedMaterial & Weight: Steel construction; weight approximately 3 kg (per supplier specification sheet). This is a catalogue value, not an independent measurement — confirm with supplier.
- PendingPerformance Data: No public boost ratio, diaphragm stroke, vacuum leak-down test pressure, or fatigue cycle data. Request from supplier: bench test report and vacuum retention test data.
- PendingInstallation Success Rate: No repair order statistics available.
When the brake booster fails, watch for the following signs:
- Brake pedal feels hard or stiff, requiring excessive force
- Hissing or whistling noise when the brake pedal is pressed
- Engine idle changes or stalls when braking (vacuum leak)
- Brake pedal does not return smoothly or feels spongy
- Increased stopping distance
| Part Number | CA100021030 |
|---|---|
| Product Name | Brake Vacuum Booster |
| Car Model | ISUZU D-MAX, MUX, RMLT |
| Engine Model | ISUZU D-MAX, MUX, RMLT |
| Condition | 100% Brand New |
| Weight | Standard (approx. 3 kg per supplier sheet) |
| Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe |
| Package | Neutral packing or made as requested |
| Warranty | 6 months |
| Price & Stock | Please contact us for 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 |
|---|---|
| Application matched | Direct replacement for D-MAX / MUX / RMLT — cross-verified by supplier listings. |
| Steel housing | Withstands engine bay heat and vibration — material certificate and pressure test data required from supplier. |
| ISO9001 claimed | Quality management system certification — request certificate copy. |
| 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 catalogues. This product is primarily matched to the ISUZU FSR 6HE1; the above numbers are listed for customer cross-comparison.
- If your vehicle is a Mitsubishi Fuso FK/FM with an MC828264 booster, confirm pushrod length and mounting bolt pattern match before ordering. Both "short" and "long" pushrod variants exist within the MC828264 family.
- Always provide the VIN/chassis number for verification. Do not rely solely on cross-reference numbers.
| QC Item | Verification Method |
|---|---|
| Mounting stud pattern | Request dimensional drawing and compare against original. |
| Pushrod length & clevis | Request dimensional inspection report. |
| Vacuum leak-down | Request bench test data (vacuum retention over time). |
| Diaphragm integrity | Request pressure/leak test report. |
| Housing material | Request mill certificate. |
- Disconnect the battery; drain brake fluid from the master cylinder reservoir as needed.
- Remove the master cylinder from the booster (without disconnecting brake lines if possible).
- Disconnect the vacuum hose and pedal clevis pin.
- Remove the booster mounting nuts from the firewall; extract the booster.
- Install the new booster; torque firewall nuts to TBC — refer to ISUZU D-MAX service manual.
- Reconnect the master cylinder, bleed the brake system, and check pedal feel.
Inspect the vacuum hose for cracks and check booster check valve function every 40,000–60,000 km, or whenever pedal effort increases.
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