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Mitsubishi Fuso King Pin Kit KP-533 MC999193 MC999975
Verified OEM Steering Repair Kit — Φ50×243mm for FU FV315 Truck
Product Overview
The Mitsubishi Fuso King Pin Kit with OEM numbers MC999193 / MC999975 (industry part number KP-533, cross-reference MM60 / MM76 / MR533 / GN-507-9193) is a verified direct-fit steering repair kit for Mitsubishi Fuso FU, FV315, FV415, and FV358 heavy trucks. This king pin kit is a critical component of the steering knuckle assembly, connecting the steering knuckle to the front axle beam, bearing vertical loads while allowing the knuckle to pivot for vehicle steering.
Working Principle
The king pin is vertically installed at the end of the front axle beam. The steering knuckle rotates around the king pin via bushings and a thrust bearing. A layer of grease between the king pin and bushings reduces friction, enabling smooth steering operation. The thrust bearing carries the vehicle's vertical load, ensuring the knuckle can rotate freely under load. Proper lubrication is the key to extending king pin and bushing life — when grease intervals are missed or incorrect grease is used, the protective layer breaks down and bushing corrosion begins, leading to steering problems.
Quality Verification
Field-Verified Fitment: Compatible with Mitsubishi Fuso FU / FV315 / FV415 / FV358 chassis, engine codes 8DC8 / 8DC9 / 8DC9-1A series (16.0L V8 diesel)
Dimensional Verification: King pin size Φ50×243 mm — conforms to OEM specification for corresponding wheel hub and steering knuckle dimensions
Hardness Verified: HRC56-60 (high-frequency hardening + tempering treatment), conforms to ASTM 1045 / 5140 material standard
System Certification: ISO/TS16949 quality management system certified
Installation Success Rate: [TBD] % direct bolt-on fitment — confirmed across [TBD] repair orders
Steering noise — Worn king pin bushings create excessive clearance, causing metallic knocking or clunking sounds during steering
Heavy or binding steering — Insufficient lubrication or seized king pin significantly increases steering effort
Abnormal front tire wear — King pin clearance alters front wheel alignment, causing irregular or feathered tire wear
Brake pull — Loose king pin causes steering knuckle misalignment, pulling the vehicle to one side during braking
Excessive steering play — With the front axle raised, noticeable axial or radial play is felt when rocking the tire
Part Number:
MC999193 MC999975
Product Name:
King Pin Kit KP-533
Car Model:
FUSO
Engine Model:
Φ50×243mm for FU FV315
Condition:
100% Brand New
Size:
Standard
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
The Great
FU
8DC8 / 8DC9
1983–1995
Mitsubishi Fuso
The Great
FV315
8DC9 (16.0L V8)
1982–1995
Mitsubishi Fuso
The Great
FV415
8DC9 / 8DC9-1A
1982–1995
Mitsubishi Fuso
The Great
FV358
8DC9
1982–1986
Mitsubishi Fuso
The Great
FU54 / FU41 / FU419N
8DC8 / 8DC9
1983–1995
Important:
This kit is designed for Mitsubishi Fuso The Great series heavy trucks (manufactured 1983–2001)
King pin dimensions are Φ50×243 mm. Verify original dimensions before selection
Some FV315 configurations may require different king pin specifications. Provide VIN or chassis number for precise fitment confirmation before ordering
This kit is a front axle dual-side service type, covering both LH and RH steering knuckles
Features & Benefits
Feature
Benefit + Verification Signal
Forged ASTM 1045 / 5140 Alloy Steel
Withstands high-load conditions with superior shear strength — material standard conforms to ASTM 1045 and 5140 specifications
High-Frequency Hardening
Surface hardness HRC56-60 for superior wear resistance — confirmed by hardness tester batch inspection
Precision Bushing Fit
Ensures smooth knuckle rotation with reduced steering effort — 100% dimensional inspection at factory against OEM tolerance
Complete Kit Configuration
Includes king pin, bushings, thrust bearing, oil seals, and lock pin — full kit services both sides, reducing separate procurement time
Multi-Generation Cross Compatibility
Fits FU / FV315 / FV415 / FV358 series chassis — verified through cross-reference part numbers
ISO/TS16949 Certified
Production conforms to international automotive quality management standard
12-Month / 20,000 km Warranty
Reduces after-sales risk and supports procurement confidence
IMPORTANT: Steering system repair must be performed by qualified professional technicians. Always secure the front axle with jack stands before installation.
Tighten steering knuckle connections — reference torque: 93.2±24.5 N·m (tie rod arm and knuckle arm mounting bolt); 162±15 N·m (king pin lower mounting bolt)
Confirm smooth king pin operation without binding or excessive clearance
Apply grease to all lubrication points (NLGI No.2 lithium soap grease recommended)
Maintenance Schedule:
Inspect king pin bushing clearance and lubrication every 40,000 km or 90 days, whichever comes first
Perform detailed king pin bushing inspection every 100,000 km or 1 year
When the truck is on a lift, use a dial indicator to check end play and keep a log of findings — this will indicate when part replacement becomes necessary and help prevent premature tire wear
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 ...
