Mitsubishi Fuso OEM MC889050 Brake Expander Cylinder with Cast Iron Construction and Automatic Slack Adjuster for FV515 FV517
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
FV515 FV517 8DC9 6WF1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Weight: | 3.1–5.0 Kg | Seals Included: | O-ring And Dust Boot |
| Installation Position: | Front / Rear Brake (LH / RH) | OEM Part Number: | MC889050 |
| Engine Compatibility: | 8DC9 / 8DC93 / 6WF1 / 10PE1 / FP51J / RM11F | Material: | Cast Iron / Steel |
| Dimensions: | 205 × 190 × 70 Mm | Cross-Reference: | 1-47601-087-0 / 1476010870 / 47510-1830A / S4751-01830 / 47510-EV030 / 44100-90413 / 3501205CA1Q / 12739074 |
| High Light: | OEM MC889050 Brake Expander Cylinder,Cast Iron Construction Wedge Brake Wheel Cylinder,Automatic Slack Adjuster Brake Actuator |
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Product Description
Mitsubishi Fuso Brake Expander Cylinder MC889050 1-47601-087-0
Verified OEM direct-fit replacement for FV515 FV517 8DC9 6WF1 Diesel Truck air brake systems.
Product Overview
The Mitsubishi Fuso Brake Expander Cylinder with OEM number MC889050 (cross-reference 1-47601-087-0 / 1476010870) is a verified direct-fit replacement for Mitsubishi Fuso FV515 and FV517 heavy trucks, as well as select Isuzu and Hino models. This wedge-type brake expander cylinder is a critical actuator in the air brake system, converting pneumatic pressure into mechanical force that pushes the brake shoes against the brake drum for vehicle deceleration and stopping.
Working Principle
Inside the expander cylinder, a piston expands outward under air pressure, pushing the brake shoes apart through rollers. The integrated automatic slack adjuster compensates for lining wear, maintaining consistent braking response over the service life of the component.
Quality Verification
- Field-Verified Fitment: Compatible with Mitsubishi Fuso FV515 / FV517 chassis, engine codes 8DC9 / 8DC93 / 6WF1 / 10PE1 / FP51J / RM11F
- Installation Success Rate: [TBD]% direct bolt-on fitment — confirmed across [TBD] repair orders
- Proven Durability: Rated for [TBD] km under normal operation — based on [TBD] (bench test data / fleet tracking records)
- OEM Cross-Reference Verified: Directly replaces MC889050 / 1-47601-087-0 / 1476010870 / 47510-1830A / S4751-01830 / 47510-EV030 / 44100-90413 / 3501205CA1Q / 12739074
Failure Symptoms
Replace promptly if any of these symptoms are observed:
- Brake pull or uneven braking — Seized piston or insufficient expansion stroke on one side causes imbalanced braking force
- Increased stopping distance — Worn or dented roller contact surface reduces shoe expansion travel, lowering braking force
- Brake drag or overheating — Poor return of the expander cylinder prevents shoes from fully disengaging from the drum, causing brake overheating
- Rapid air pressure loss — Degraded seals cause air leakage, preventing proper parking brake release
- Brake noise — Worn slack adjuster mechanism or spring failure produces metallic knocking sounds
| Part Number: | 1-47601-087-0 | Product Name: | Brake Expander Cylinder |
|---|---|---|---|
| Car Model: | FUSO | Engine Model: | FV515 FV517 8DC9 6WF1 |
| 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 Make It 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 | ||
Vehicle & Engine Compatibility
Primary Applications:
| Brand | Model / Series | Chassis | Engine | Years |
|---|---|---|---|---|
| Mitsubishi Fuso | FV515 | FV515 | 8DC9 / 8DC93 / 6WF1 | 1996–2007 |
| Mitsubishi Fuso | FV517 | FV517 | 8DC9 / 6WF1 | 1996–2007 |
| Mitsubishi Fuso | Super Great | FP51J / RM11F | 6WF1 / 10PE1 | 1998–2000 |
| Mitsubishi Fuso | Fighter | FK/FM Series | 6D16 / 6M70 | 2005–2007 |
| Isuzu | FVR34 / CYZ51 / CYZ52 | FVR / CYZ | 6HK1 / 6WF1 (EURO3) | 2000–2020 |
| Hino | 500 / 700 Series | — | E13C etc. | [TBD] |
Important Notes:
- This part is a front/rear universal type, installable on both LH and RH sides. Verify that the original part number matches MC889050.
- Some FV515 configurations may use a different expander cylinder model. Provide VIN or chassis number for precise fitment confirmation before ordering.
- For Isuzu applications, confirm engine is 6WF1 or 6HK1 with EURO3 emission standard.
Features & Benefits
Feature
Benefit + Verification Signal
Cast Iron Body Construction
Withstands high-pressure air brake conditions with minimal deformation — verified under ISO9001 quality management system
Automatic Slack Adjuster
Compensates for shoe wear automatically, reducing manual adjustment intervals — conforms to OEM design specification
Precision Piston & Roller Assembly
Ensures accurate expansion stroke, maintaining balanced braking force — 100% dimensional inspection at factory
Multi-Brand Cross Compatibility
Fits Mitsubishi Fuso / Isuzu / Hino heavy trucks — verified through cross-reference part numbers
12-Month Warranty
Reduces after-sales risk and supports procurement confidence
Quality Control & Verification
QC Item
Verification Method
Cylinder body dimensional accuracy
CMM (Coordinate Measuring Machine)
Leak test
Air-tightness pressure hold test ([TBD] bar / [TBD] minutes)
Piston stroke verification
Stroke gauge inspection against OEM specification
Material hardness
Rockwell / Brinell hardness tester
Surface treatment
Visual inspection + coating thickness gauge
Pre-shipment inspection
100% visual and functional check
System certification
ISO9001 / IATF16949 (supplier applicable)
Installation & Maintenance
IMPORTANT:
Brake system repair must be performed by qualified professional technicians. Ensure the vehicle is fully secured and air pressure is released before installation.
Installation Guidelines (Reference workshop manual):
- Before removing the old expander cylinder, mark air line connection points to prevent incorrect reinstallation
- Clean the brake mounting surface, removing rust and contamination
- Install the new expander cylinder, ensuring correct alignment between piston rollers and brake shoe contact surfaces
- Tighten mounting bolts to specified torque — refer to Mitsubishi Fuso workshop manual for exact specification (typical value: [TBD] N·m)
- After installation, depress the brake pedal several times to confirm proper expander operation and check for air leaks
- Verify brake clearance is within standard specification
Maintenance Schedule:
- Inspect expander cylinder seal condition and brake clearance every [TBD] km
- Remove and inspect piston roller wear every [TBD] km, or upon detecting brake pull / abnormal noise
- Recommend inspecting expander cylinder whenever brake shoes are replaced
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