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Air Brake Booster MC828265 For Mitsubishi Fuso FV515 8DC9 – Heavy Duty Truck Brake Servo
Product Overview
The air brake booster (brake air servo / air master brake booster) with OEM number MC828265 is a direct replacement for the factory-installed pneumatic brake assist unit on Mitsubishi Fuso heavy-duty trucks, specifically the FV515 chassis equipped with the legendary 8DC9 V8 diesel engine.
The 8DC9 is a 16.0-liter naturally aspirated V8 diesel engine producing approximately 380 horsepower. It is one of Mitsubishi Fuso's most powerful and durable engine platforms, found in the Super Great series of heavy-duty trucks, including dump trucks and concrete mixers.
The MC828265 booster is a pneumatic (air-over-hydraulic) unit. When the driver presses the brake pedal, the booster uses compressed air from the vehicle's air system to amplify the force applied to the master cylinder, significantly reducing pedal effort.
Part Number:
MC828265
Product Name:
Air Brake Booster
Car Model:
Mitsubishi Fuso
Engine Model:
Mitsubishi 8DC9
Condition:
100% Brand New
Material:
High-strength aluminum alloy & precision bearings
Quality Standard:
OEM equivalent / ISO quality control
Installation:
Direct OEM replacement
Vehicle Appliions
This Mitsubishi Fuso air brake booster MC828265 directly replaces the factory unit in the following configurations:
Primary Fitment:
Chassis
Engine
Notes
Mitsubishi Fuso FV515
8DC9 (16.0L V8 diesel)
6x4 heavy-duty chassis
Mitsubishi Fuso Super Great
8DC9
Dump trucks, concrete mixers
Interchangeable Part Numbers for FV515:
MC828265 (Primary - long booster)
MK321264
MK321265
MK321046
MC808269
203-07040
203-07150
203-07135
Features & Benefits
Direct OE Replacement: Exact Mitsubishi part number MC828265 - direct bolt-on replacement with no modifiions required
Robust Construction: High-grade aluminium and steel construction for heavy-duty use in demanding appliions
Brake Force Amplifiion: Reduces pedal effort dramatically for improved driver comfort and reduced fatigue
Extensive Cross-Reference Coverage: Interchangeable with multiple OEM part numbers
Quality Certified: Manufactured under IATF 16949 and ISO 9001 certified quality management systems
12-Month Warranty: Protection against manufacturing defects
Quality Control & Verifiion
QC Item
Verifiion Method
Air system leak test
Pneumatic pressure test - zero leakage at operating pressure
Functional test
Bench test simulating actual brake appliion cycles
Housing casting integrity
Visual and pressure decay test - no porosity or cracks
Seal integrity
High-quality rubber seals tested for durability
Mounting flange alignment
Fixture check - correct bolt hole pattern for FV515 chassis
Installation & Maintenance
⚠️ IMPORTANT: The air brake system operates under high pressure (typically 120-145 psi / 8-10 bar). Professional installation by a qualified mechanic is strongly recommended. Incorrect installation can lead to brake failure.
When to replace this brake booster (symptoms):
Symptom
Diagnosis
Hard or heavy brake pedal
Loss of air assist - booster diaphragm or valve failure
Increased stopping distance
Reduced braking force - replace booster immediately
Hissing noise from booster area
Air leak - diaphragm or seal failure
Brake pedal does not return to normal position
Internal mechanical fault - replace booster
Critical installation notes:
Depressurise the air system completely before removing the old booster
Disconnect the battery before starting any work on the brake system
Use new O-rings and sealing washers - do not reuse old seals
Torque the mounting nuts to factory specifiion
Refer to the Mitsubishi Fuso workshop manual for complete procedure
Packaging & Supply
Individual packaging: Sealed in anti-rust packaging, foam-lined carton
Carton dimensions: 26 × 11 × 12 cm
Gross weight per unit: 2.5 kg
Lead time: 7-14 working days for stock orders
Minimum order quantity: Sample orders supported; MOQ: 50 pieces
Shipping methods: FedEx, UPS, DHL for samples; sea freight for bulk
Quick Summary
The Mitsubishi Fuso air brake booster MC828265 is an OE-specifiion pneumatic brake assist unit for the FV515 heavy-duty chassis with the 8DC9 16.0L V8 diesel engine. This long-type booster features an aluminium/steel construction and is manufactured under IATF 16949 / ISO 9001 certified quality management systems.
Before ordering: This booster is for the FV515 chassis with the 8DC9 engine. Verify your vehicle's chassis code and original part number before ordering.
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
