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{"title":"ISUZU DMAX 4JA1 T H1 GEAR TIMING 52 8979427551","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/8f\/faca408a6e5c150d63ac2adb933f-200x200-1\/isuzu_dmax_4ja1_t_h1_gear_timing_52_8979427551.jpg","attrs":{"Model Number":"DMAX 4JA1 T H1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU NHR 4JA1 DMAX CRANKSHAFT 8944552401","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/3f\/ae38ad12211136e0e8ec331c8536-200x200-1\/isuzu_nhr_4ja1_dmax_crankshaft_8944552401.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
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The Mitsubishi Fuso King Pin Kit with OEM numbers MC996349 / MC994306 (cross-reference KP-554 / KP-554X / MM-74) is a verified direct-fit steering repair kit for Mitsubishi Fuso FN622, FV519JX, FK617, FM618, and FM617 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. Lubrication 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.
Multi-Brand Aftermarket Validation: IZUMI-branded equivalent installed globally — confirmed via multilingual product listings and dealer inventory records
Failure Symptoms
Replace promptly if observed:
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 at 12/6 o'clock positions
Product Specifications
Part Number:
MC996349 MC994306
Product Name:
King Pin Kit
Car Model:
FUSO
Engine Model:
FN622 FV519JX FK617 FM61
Condition:
100% Brand New
Material:
High-strength aluminum alloy & precision bearings
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
Vehicle & Engine Compatibility
Primary Applications:
Brand
Model / Series
Chassis
Engine
Years
Mitsubishi Fuso
Fighter
FK617
6D16-2A / 6D16-1AT2
1995–1997
Mitsubishi Fuso
Fighter
FK618
6D17-1A2
1997–
Mitsubishi Fuso
Fighter
FK61F / FK62F
6M60-3AT1
2008–
Mitsubishi Fuso
Fighter
FK65F
6M60-3AT1/2
2008–2015
Mitsubishi Fuso
Fighter
FM517
6D16-1A/T-1A
1991–
Mitsubishi Fuso
Fighter
FM618
6D17-1A2
1995–
Mitsubishi Fuso
FN622
FN Series
[TBD]
[TBD]
Mitsubishi Fuso
FV519JX
FV Series
[TBD]
[TBD]
Important Compatibility Notes:
This kit is designed for vehicles equipped with 20" or 22.5" wheels. Confirm wheel size before installation.
FM517 compatibility applies to Crew Cab models only.
Some FN622 / FV519JX configurations may require different king pin specifications. Provide VIN or chassis number for precise fitment confirmation before ordering.
King pin dimensions are available in 45*220 mm and Φ50*243 mm variants. Verify original dimensions before selection.
Features & Benefits
Feature
Benefit + Verification Signal
Forged Alloy Steel King Pin
Withstands high-load conditions with superior shear strength — verified against OEM material specification and ISO9001 system
Precision Bushing Fit
Ensures smooth knuckle rotation with reduced steering effort — 100% dimensional inspection at factory
Complete Kit Configuration
Includes king pin, bushings, thrust bearing, oil seals, and lock pin — reduces separate procurement time
Multi-Generation Cross Compatibility
Fits FK / FM / FN / FV series chassis — verified through cross-reference part numbers
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.
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 ...
