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SCM415/SAE 8620 Alloy Steel Synchronizer Hub with HRC 58-62 Hardness and 54T/46T Gear Configuration for Hino 300 Series

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SCM415/SAE 8620 Alloy Steel Synchronizer Hub with HRC 58-62 Hardness and 54T/46T Gear Configuration for Hino 300 Series

MOQ:	2 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	5000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

Certification

ISO/TS16949

Model Number

Toyota WU340 14B

Surface Hardness:

HRC 58–62 (core Retains Toughness)

Manufacturing Process:

CNC Turning/milling, Internal Spline Broaching, Precision Grinding

Heat Treatment:

Carburizing + Quenching + Tempering

Gear Configuration:

54T/46T

Matching Component:

33364-36080 (SLEEVE, TRANSMISSION HUB, NO.2)

Material:

SCM415 / SAE 8620 Alloy Steel (or Equivalent)

OEM Part Number:

33361-36030

Transmission Type:

5-speed Manual (MTM)

Highlight:

SCM415 alloy steel synchronizer hub

SAE 8620 synchronizer hub Hino 300

54T gear synchronizer hub HRC 58-62

Product Description

Synchronizer Hub 33361-36030 For Hino 300 Series 12LT HT125 WU340 14B Manual Transmission

Product Overview

The synchronizer hub (OEM: 33361-36030) is a critical internal component of the 5-speed manual transmission (MTM) used in Hino and Toyota commercial vehicles. This hub serves as the central locking and torque-transfer element within the synchronizer assembly, enabling smooth gear engagement by matching speeds between the hub and gear before locking them together.

Technical Specifications

Part Number	33361-36030
Product Name	Synchronizer Hub
Car Model	Toyota
Engine Model	Toyota WU340 14B
Condition	100% Brand New
Material	SCM415/SAE 8620 alloy steel
Surface Hardness	HRC 58-62
Gear Configuration	54T/46T
Origin	China Mainland

Vehicle Applications

This synchronizer hub is designed as a direct OEM replacement for:

Hino 300 Series (Old Model)

Model	Transmission	Engine / Notes
Hino 300 Series (OLD)	12LT HT125	WU340 14B
Hino Dutro	WU300, WU340, WU410 series	Various diesel engines

Toyota Dyna / ToyoAce (BU Chassis - 10.1992 to 05.1995)

Chassis	Engine	Transmission
BU66, BU60, BU61, BU67, BU68	5F (diesel)	5-speed manual (MTM)
BU7#, BU8#, BU9#	5F (diesel)	5-speed manual (MTM)

Additional compatible platforms: Toyota Coaster, Toyota Quick Delivery, Toyota Dyna 200 / ToyoAce G25

Important Note: This hub is specifically for the 5-speed manual transmission (MTM) and serves as the No. 1 clutch hub (first/second gear synchronizer hub). Always verify your transmission type and original part number before ordering.

Failure Symptoms & Diagnosis

The synchronizer hub withstands full engine torque and shock loads during gear changes. Common failure symptoms include:

Symptom	Diagnosis
Difficulty engaging first or second gear	Worn hub teeth - immediate inspection required
Grinding noise when shifting	Worn hub or synchronizer ring - replace hub and inspect sleeve
Transmission pops out of gear under load	Worn hub teeth or shift fork - replace hub
Excessive play in gear lever	Worn internal splines on the hub
Metallic particles in transmission oil	Worn hub teeth or bearings - requires disassembly and inspection

Features & Benefits

Precision Engineering

Specifically designed for 5-speed manual transmissions with 54T/46T gear configuration matching factory specifications.

High-Strength Construction

Manufactured from SCM415/SAE 8620 alloy steel for optimal surface hardenability and core toughness.

Advanced Heat Treatment

Carburizing and quenching process delivers HRC 58-62 surface hardness with impact-resistant core.

CNC Precision Manufacturing

Produced using CNC turning, milling, internal spline broaching, and precision grinding for accurate fitment.

Matched Component System

Designed to work with 33364-36080 shift sleeve as a matched pair for optimal performance.

Damage Prevention

Prevents secondary damage to shift sleeve and gear teeth, avoiding costly transmission rebuilds.

Quality Control

Each batch undergoes comprehensive verification including:

Material composition analysis (SCM415/SAE 8620 grade confirmation)
Surface hardness testing (HRC 58-62 verification)
Tooth profile accuracy measurement via CMM
Internal spline dimension verification
Concentricity and runout measurement
Surface finish analysis
Heat treatment microstructure examination

Certificate of conformance with batch test data available for wholesale orders.

Installation & Maintenance

⚠️ IMPORTANT: Transmission disassembly required. Professional installation by qualified transmission specialist strongly recommended.

Critical Installation Notes:

This is the No. 1 clutch hub (first/second gear synchronizer hub)
Designed to work with 33364-36080 shift sleeve - replacing both components together is recommended
Inspect synchronizer rings, shift fork, and gear engagement teeth for wear
Replace transmission oil with correct grade (GL-4 or GL-5) after reassembly
Check and adjust shift linkage after installation
Refer to Toyota or Hino workshop manual for complete procedures

Packaging & Supply

Packaging: Sealed in anti-rust packaging, foam-lined carton
Lead Time: 3-7 working days (stock orders); 15-25 days (production orders)
Minimum Order: 1 piece
Shipping: FedEx, UPS, DHL for samples; sea freight for bulk orders
H/S Code: 8708.40

Matching components (shift sleeve 33364-36080, synchronizer rings, bearings) also available for complete transmission rebuilds.

Quick Summary

The synchronizer hub 33361-36030 is an OEM-spec replacement for the No. 1 clutch hub in 5-speed manual transmissions of Hino 300 Series and Toyota Dyna vehicles. Features 54T/46T gear configuration, SCM415/SAE 8620 alloy steel construction with carburizing heat treatment (HRC 58-62), and designed to work with 33364-36080 shift sleeve.

Before ordering: Confirm your vehicle's chassis code and transmission type (5-speed manual).

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SCM415/SAE 8620 Alloy Steel Synchronizer Hub with HRC 58-62 Hardness and 54T/46T Gear Configuration for Hino 300 Series

MOQ:	2 pcs
Price:	Negotiable
Standard Packaging:	Neutral Package or as customers’ request
Delivery Period:	5-8 Work Days
Payment Method:	T/T,Western Union
Supply Capacity:	5000 pcs/month

Detail Information

Product Description

Detail Information

Place of Origin

China

Brand Name

YIMI

Certification

ISO/TS16949

Model Number

Toyota WU340 14B

Surface Hardness:

HRC 58–62 (core Retains Toughness)

Manufacturing Process:

CNC Turning/milling, Internal Spline Broaching, Precision Grinding

Heat Treatment:

Carburizing + Quenching + Tempering

Gear Configuration:

54T/46T

Matching Component:

33364-36080 (SLEEVE, TRANSMISSION HUB, NO.2)

Material:

SCM415 / SAE 8620 Alloy Steel (or Equivalent)

OEM Part Number:

33361-36030

Transmission Type:

5-speed Manual (MTM)

Minimum Order Quantity:

2 pcs

Price:

Negotiable

Packaging Details:

Neutral Package or as customers’ request

Delivery Time:

5-8 Work Days

Payment Terms:

T/T,Western Union

Supply Ability:

5000 pcs/month

Highlight

SCM415 alloy steel synchronizer hub

SAE 8620 synchronizer hub Hino 300

54T gear synchronizer hub HRC 58-62

Product Description

Synchronizer Hub 33361-36030 For Hino 300 Series 12LT HT125 WU340 14B Manual Transmission

Product Overview

Technical Specifications

Part Number	33361-36030
Product Name	Synchronizer Hub
Car Model	Toyota
Engine Model	Toyota WU340 14B
Condition	100% Brand New
Material	SCM415/SAE 8620 alloy steel
Surface Hardness	HRC 58-62
Gear Configuration	54T/46T
Origin	China Mainland

Vehicle Applications

This synchronizer hub is designed as a direct OEM replacement for:

Hino 300 Series (Old Model)

Model	Transmission	Engine / Notes
Hino 300 Series (OLD)	12LT HT125	WU340 14B
Hino Dutro	WU300, WU340, WU410 series	Various diesel engines

Toyota Dyna / ToyoAce (BU Chassis - 10.1992 to 05.1995)

Chassis	Engine	Transmission
BU66, BU60, BU61, BU67, BU68	5F (diesel)	5-speed manual (MTM)
BU7#, BU8#, BU9#	5F (diesel)	5-speed manual (MTM)

Additional compatible platforms: Toyota Coaster, Toyota Quick Delivery, Toyota Dyna 200 / ToyoAce G25

Failure Symptoms & Diagnosis

The synchronizer hub withstands full engine torque and shock loads during gear changes. Common failure symptoms include:

Symptom	Diagnosis
Difficulty engaging first or second gear	Worn hub teeth - immediate inspection required
Grinding noise when shifting	Worn hub or synchronizer ring - replace hub and inspect sleeve
Transmission pops out of gear under load	Worn hub teeth or shift fork - replace hub
Excessive play in gear lever	Worn internal splines on the hub
Metallic particles in transmission oil	Worn hub teeth or bearings - requires disassembly and inspection

Features & Benefits

Precision Engineering

Specifically designed for 5-speed manual transmissions with 54T/46T gear configuration matching factory specifications.

High-Strength Construction

Manufactured from SCM415/SAE 8620 alloy steel for optimal surface hardenability and core toughness.

Advanced Heat Treatment

Carburizing and quenching process delivers HRC 58-62 surface hardness with impact-resistant core.

CNC Precision Manufacturing

Produced using CNC turning, milling, internal spline broaching, and precision grinding for accurate fitment.

Matched Component System

Designed to work with 33364-36080 shift sleeve as a matched pair for optimal performance.

Damage Prevention

Prevents secondary damage to shift sleeve and gear teeth, avoiding costly transmission rebuilds.

Quality Control

Each batch undergoes comprehensive verification including:

Material composition analysis (SCM415/SAE 8620 grade confirmation)
Surface hardness testing (HRC 58-62 verification)
Tooth profile accuracy measurement via CMM
Internal spline dimension verification
Concentricity and runout measurement
Surface finish analysis
Heat treatment microstructure examination

Certificate of conformance with batch test data available for wholesale orders.

Installation & Maintenance

⚠️ IMPORTANT: Transmission disassembly required. Professional installation by qualified transmission specialist strongly recommended.

Critical Installation Notes:

This is the No. 1 clutch hub (first/second gear synchronizer hub)
Designed to work with 33364-36080 shift sleeve - replacing both components together is recommended
Inspect synchronizer rings, shift fork, and gear engagement teeth for wear
Replace transmission oil with correct grade (GL-4 or GL-5) after reassembly
Check and adjust shift linkage after installation
Refer to Toyota or Hino workshop manual for complete procedures

Packaging & Supply

Packaging: Sealed in anti-rust packaging, foam-lined carton
Lead Time: 3-7 working days (stock orders); 15-25 days (production orders)
Minimum Order: 1 piece
Shipping: FedEx, UPS, DHL for samples; sea freight for bulk orders
H/S Code: 8708.40

Matching components (shift sleeve 33364-36080, synchronizer rings, bearings) also available for complete transmission rebuilds.

Quick Summary

Before ordering: Confirm your vehicle's chassis code and transmission type (5-speed manual).

Tags: