1-48250837-0 Front Brake Chamber ISUZU FV517 6D24T Fitment Front Axle Left Right Brake Power Chamber Assembly
| Material: | High-Strength Steel | Net Weight: | 3.66 Kg |
| Position: | Front Axle — Left / Right | Engine Compatibility: | 6D24T / 6WF1 |
| OEM Part Number: | 1-48250837-0 / 1482508370 | Cross-Reference Part: | MK448553 / MK448554 / 8981456801 / 8-98145680-1 / D-125191 / D-128762 |
| Figure/Key Number: | 340-001 | H/S Code: | 870830000 |
| High Light: | 1-48250837-0 Front Brake Chamber,ISUZU FV517 6D24T Brake Chamber,Front Axle Left Right Brake Chamber |
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The Front Brake Power Chamber Assembly with OEM numbers 1-48250837-0 and 1482508370 is a verified direct-fit replacement for ISUZU FV517 / CYZ51 / CXZ51K / EXZ52 / FVR34 heavy-duty trucks equipped with 6D24T / 6WF1 diesel engines. This front brake chamber is a critical component of the vehicle's pneumatic braking system, converting compressed air pressure into mechanical force that actuates the front brake shoes — ensuring reliable, powerful braking under all load conditions.
The front brake power chamber (also called a brake chamber or brake pod) is a pneumatic actuator that converts compressed air pressure into mechanical force. When the brake pedal is depressed, compressed air from the vehicle's air system enters the chamber, pushing the internal diaphragm or piston. This force is transmitted through the push rod to the slack adjuster, which rotates the S-cam shaft, expanding the brake shoes against the brake drum and slowing the vehicle.
The 1-48250837-0 brake chamber is manufactured from high-strength steel with a corrosion-resistant coating, designed to withstand the harsh operating conditions and high vibration of heavy commercial truck applications.
The 6D24T is an 11.9L inline-six turbo-diesel engine producing approximately 300–350 HP, widely used in ISUZU FV517 series heavy trucks from the 1990s to 2000s. The 6WF1 is a 14.3L inline-six turbo-diesel used in ISUZU CYZ51 and CXZ51K models.
Replace the front brake chamber assembly when any of these symptoms appear:
- Brake lag or slow brake response — a worn or damaged diaphragm or piston seal causes slow air pressure buildup, delaying brake application.
- Brake dragging or not releasing — a broken return spring or corroded internal components prevent the push rod from retracting, causing the brakes to drag.
- Air leakage from the chamber — audible air leaks at the chamber body or connections indicate diaphragm or seal failure.
- Uneven braking or pulling to one side — a weak chamber on one side causes uneven braking force distribution.
- Visible cracks or corrosion on the chamber housing — structural damage compromises the chamber's pressure integrity.
- Excessive push rod travel — indicates internal wear or a stretched diaphragm requiring adjustment or replacement.
ISUZU service manuals require that brake chambers be inspected for air leaks, diaphragm condition, and push rod travel at every brake system service interval. Always replace brake chambers in pairs (left and right) to maintain balanced braking performance. After installation, adjust the slack adjuster to achieve correct push rod travel. Never disassemble a brake chamber without proper training — the internal spring is under high tension and can cause serious injury if released improperly.
| Verification Item | Data / Standard | Source / Method |
|---|---|---|
| Part Number (Short) | 1-48250837-0 | OKISUZU; Autopart Masters |
| Part Number (Long) | 1482508370 | Autopiter.ru; Autopart Masters |
| Official Part Name | CHAMBER ASM; POWER, FRT BRK | OKISUZU specification |
| Cross-Reference Part | MK448553 / MK448554 | ecer.com; OKISUZU; Disenparts |
| Cross-Reference Part | 8981456801 / 8-98145680-1 | ecer.com; Dutch Autopart Masters |
| Cross-Reference Part | D-125191 / D-128762 | Diesel-dv.ru; Autopiter.ru |
| Vehicle Models | ISUZU FV517 / CYZ51 / CXZ51K / EXZ52 / FVR34 | Autopiter.ru; OKISUZU |
| Engine Compatibility | 6D24T / 6WF1 | Autopiter.ru; OKISUZU |
| Position | Front Axle — Left / Right | OKISUZU specification |
| Net Weight | 3.66 kg | OKISUZU specification |
| H/S Code | 870830000 | OKISUZU specification |
| Figure / Key Number | 340-001 | OKISUZU specification |
| Certification | ISO9001 / TS16949 | Trucksparesparts.com specification |
| Warranty | 12 Months | Manufacturer standard |
| Part Number | 1-48250837-0 | Product Name | Front Brake Chamber |
| Car Model | FV517 | Engine Model | 6D24T |
| Condition | 100% Brand New | Size | Standard |
| Weight | Standard | Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe | Package | Neutral packing or as requested |
| Material | High-strength aluminum alloy & precision bearings | Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement | Quality Standard | OEM equivalent / ISO quality control |
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| ISUZU | FV517 | FV517 | 6D24T | 1990s–2000s |
| ISUZU | CYZ51 | CYZ51 | 6WF1 | 2000–2008 |
| ISUZU | CXZ51K | CXZ51K | 6WF1 | 2000–2008 |
| ISUZU | EXZ52 | EXZ52 | 6WF1 | 2000–2008 |
| ISUZU | FVR34 | FVR34 | 6HK1 | 1990s–2000s |
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| Mitsubishi | Fuso Fighter | FM215 | 6D14 / 6D15 | 1976–1985 |
| Mitsubishi | Fuso Fighter | FM515 | 6D14 / 6D15 | 1984–1989 |
| Mitsubishi | Fuso Fighter | FK455 | 6D14 / 6D15 | 1986–1991 |
| Mitsubishi | Fuso Fighter | FK457 | 6D14 / 6D15 | 1989–1991 |
| Mitsubishi | Fuso Great | FU410NS | 6D40 | — |
| Engine Model | Displacement | Power Output | Common Applications |
|---|---|---|---|
| 6D24T | 11.9L Turbo | ≈ 300–350 HP | FV517 |
| 6WF1 | 14.3L | ≈ 304 HP | CYZ51, CXZ51K, EXZ52 |
| 6HK1 | 7.8L | ≈ 240 HP | FVR34 |
- This brake chamber is designed for the front axle application. Confirm the chamber type and push rod length against your original component before ordering.
- The 1-48250837-0 is the primary OEM number. The 1482508370, MK448553, MK448554, 8981456801, D-125191, and D-128762 are cross-reference numbers for the same application. Verify your exact OEM number against your original component.
- Always replace brake chambers in pairs (left and right) to maintain balanced braking performance.
- Never disassemble a brake chamber without proper training — the internal spring is under high tension.
- After installation, adjust the slack adjuster to achieve correct push rod travel.
- For right-hand drive (RHD) vehicles, verify clearance and air line routing. Refer to the ISUZU workshop manual for the correct procedure.
To ensure 100% accurate matching, please provide the VIN or chassis number before ordering. We will verify it through the ISUZU global EPC system.
| Feature | Benefit + Verification Signal |
|---|---|
| High-Strength Steel Housing | Withstands high air pressure and heavy-duty vibration in commercial truck applications — verified by product specification. |
| Corrosion-Resistant Coating | Extended service life in harsh road and weather conditions — verified by product specification. |
| Precision Diaphragm / Piston | Ensures consistent and reliable brake force output — verified by product specification. |
| OEM-Exact Fitment | Direct replacement for 1-48250837-0 / 1482508370 without modification — confirmed by OKISUZU and Autopart Masters cross-reference. |
| Wide Vehicle Compatibility | Covers ISUZU FV517, CYZ51, CXZ51K, EXZ52, and FVR34 models — verified by Autopiter.ru application catalog. |
| ISO9001 / TS16949 Certified | Full traceability with material certificates and batch inspection reports — third-party certified. |
| Installation Success Rate ≥ 99% | Based on repair order tracking — confirms reliable fitment across the FV517 / CYZ51 platform. |
| QC Item | Verification Method / Standard |
|---|---|
| Chamber Housing Dimensions | CMM, 100% inspection |
| Push Rod Length & Thread | CMM, 100% inspection |
| Diaphragm / Piston Seal Integrity | Pressure decay test, 100% inspection |
| Air Port Thread | Thread gauge, 100% inspection |
| Spring Load | Spring tester, batch sampling |
| Surface Coating Thickness | Coating thickness gauge, batch sampling |
| Air Leak Test | Pressure test, 100% inspection |
| Material Hardness | Rockwell hardness tester, batch sampling |
| Surface Finish | Visual inspection — no cracks, no corrosion, no deformation |
| Batch Traceability | Material lot number + production date |
| Packaging Protection | Anti-rust oil + VCI film + carton |
Brake system service must be performed by a qualified technician. Always support the vehicle on a hoist and ensure the air system is fully depressurized before servicing the brake chamber. Never disassemble a brake chamber without proper training — the internal spring is under high tension.
- Preparation: Raise the vehicle on a hoist. Depressurize the air system completely. Clean the brake chamber and surrounding area thoroughly.
- Removal: Disconnect the air line from the chamber. Remove the mounting nuts securing the chamber to the axle bracket. Disconnect the push rod from the slack adjuster. Remove the old brake chamber.
- Inspection: Inspect the mounting bracket for cracks or deformation. Inspect the air line for cracks or deterioration. Inspect the slack adjuster for wear.
- Installation: Position the new brake chamber onto the mounting bracket. Install and torque the mounting nuts to specification. Connect the push rod to the slack adjuster. Connect the air line.
- Adjustment: Adjust the slack adjuster to achieve correct push rod travel per specification. Verify the push rod stroke is within the recommended range.
- Air System Check: Pressurize the air system and check for air leaks at all connections. Apply the brakes several times to verify proper operation.
- Road Test: Perform a road test at low speed to verify proper braking performance and absence of dragging or uneven braking.
| Fastener | Torque |
|---|---|
| Chamber Mounting Nuts | Per ISUZU workshop manual specification |
| Push Rod Clevis Pin | Per ISUZU workshop manual specification |
| Air Line Fittings | Per ISUZU workshop manual specification |
- Every 10,000 km: Inspect brake chamber for air leaks and push rod travel. Check mounting bolt torque.
- Every 40,000–50,000 km: Inspect diaphragm / piston condition. Check slack adjuster operation.
- Every 2 years: Inspect brake chamber internal components for wear. Replace if any abnormality is found.
- When brake lag or dragging is detected: Inspect brake chamber immediately. Replace if diaphragm or return spring is worn.
- Whenever the brake system is serviced: Always inspect brake chambers and replace if any abnormality is found.
- Standard Packaging: Anti-rust oil + VCI film + neutral carton.
- Custom Packaging: Neutral box, color box, or customer-branded packaging.
- Suitable For: Heavy-truck brake system repair shops, ISUZU parts distributors, fleet maintenance centers.
- Supply Capacity: Stable batch supply with batch-level quality reports available.
- MOQ: Small quantities accepted (quantity discounts available).
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