AZ9231340329 STR Wheel End Reducer Assembly for Sinotruk HOWO Steyr Truck Drive Axle

AZ9231340329 STR Wheel End Reducer Assembly for Sinotruk HOWO Steyr Truck Drive Axle

(1)AZ9231340329 wheel end reducer assembly for Sinotruk STR axles.
(2)Suitable for matching HOWO and Steyr drive axle systems.
(3)Features a planetary gear mechanism with a 3.478 reduction ratio.
(4)Reference dimensions of 250 mm height and 264 mm inner diameter.
(5)Supports wholesale orders, mixed purchasing and custom packaging.
Product Description

首

STR轮边-总成AZ9231340329

1. Application & Related Axle Parts

The AZ9231340329 STR Wheel End Reducer Assembly is designed for compatible Sinotruk HOWO and Steyr heavy-duty truck drive axle systems.

The planetary wheel-end reduction mechanism reduces rotational speed and increases output torque at the wheel, supporting power transmission under heavy-load operating conditions.

The reference gear configuration includes a 23-tooth external sun gear, 57-tooth internal ring gear and 16-tooth planetary gears, providing a reduction ratio of approximately 3.478.

Related components include planetary carriers, sun gears, planetary gears, internal ring gears, planetary shafts, wheel hubs, bearings and oil seals.

2. Fitment Confirmation Before Order

Buyers should confirm the complete part number AZ9231340329, original STR axle configuration, gear tooth counts and assembly dimensions before purchasing.

The reference specifications include an overall height of 250 mm, inner diameter of 264 mm and sun gear height of 59 mm.

Different Sinotruk drive axle versions may use different wheel-end reduction assemblies. Please confirm the internal and external sun gear teeth, planetary gear specifications, ring gear teeth and mounting structure.

Please also confirm whether the order requires the complete reducer assembly or individual components such as the planetary carrier, sun gear or reducer housing.

3. Suitable Buyer & Supply Use

This product is suitable for heavy-duty truck parts importers, wholesalers, axle repair workshops, fleet maintenance companies and aftermarket distributors.

WOPU supports combined purchasing of wheel-end reducer assemblies, planetary gears, sun gears, internal ring gears, planetary carriers, wheel hubs, bearings and other compatible STR axle components.


Overview

Item

Information

Item

Information

Part Name

Wheel End Reducer Assembly

Part Number

AZ9231340329

Other Name

Wheel Hub Reduction Assembly

Reference Number

199112340029

Vehicle Brand

Sinotruk HOWO / Steyr

Axle Type

STR / Steyr Type

Vehicle Type

Heavy Duty Truck

Application

Wheel-End Reduction System

Installation Position

Drive Axle Wheel End

Gear Type

Planetary Reduction Gear

Reference Overall Height

250 mm

Reference Inner Diameter

264 mm

Reference Sun Gear Height

59 mm

Reference Reduction Ratio

3.478

Sun Gear Teeth

26 Internal / 23 External

Internal Ring Gear Teeth

57

Planetary Gear Teeth

16

Assembly Type

Planetary Wheel Reducer

Material

Steel

Condition

New

MOQ

Confirm for Wholesale Order

Sample

Available on Request

Package

Neutral / WOPU / Customized

Origin

China

OEM Service

Available on Request

Payment

T/T / L/C / Alibaba Trade Assurance

Shipping

Sea / Air / Express

Loading Port

Qingdao / Tianjin / Shanghai / Guangzhou


Our advantages include:

Full range heavy-duty truck spare parts supply

Support for bulk wholesale and mixed container orders

Part number, photo and sample confirmation service

Neutral package and customized package available

Export experience for Africa, Middle East, South America, Southeast Asia and Central Asia

Flexible shipping solutions by express, air and sea

Long-term cooperation support for importers, wholesalers, repair shops and fleet maintenance buyers

Factory Show

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Company advantages

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FAQ

------>Q1. How can I confirm the correct truck parts before ordering?
Please provide the part number, truck model, axle model, engine model or transmission model. If the part number is unavailable, you can send us product photos, dimensions, nameplate information or samples. Our team will check the details with you before confirming the order to reduce matching errors.

------>Q2. Can I purchase different truck parts in one order?
Yes. WOPU supplies a wide range of heavy-duty truck parts, including axle, chassis, transmission, engine and cab components. We support mixed-product orders and consolidated shipments, helping repair shops, wholesalers and importers reduce purchasing time, shipping costs and supplier management work.

------>Q3. What is your minimum order quantity?
The MOQ depends on the product type, weight, packaging method and stock availability. Small trial orders are available for many stocked items, while more competitive pricing can be offered for wholesale and container orders. Please send us your purchasing list for a detailed proposal.

------>Q4. How do you control product quality?
We check key specifications, dimensions, materials, appearance and packaging according to the requirements of each product. Photos or videos can be provided before shipment when required. For large or customized orders, samples can also be confirmed before batch production.

------>Q5. Can you provide samples before a bulk order?
Yes, samples are available for many products. If the item is in stock, we can arrange it after confirming the sample and courier costs. For customized products, sample preparation time and charges will be evaluated according to the drawing, sample or technical requirements.

------>Q6. Do you support OEM, ODM and customized packaging?
Yes. We support product development based on samples or drawings, as well as customized dimensions, materials, markings, labels and packaging. WOPU packaging, neutral packaging and authorized customer-brand packaging are available according to order quantity and product requirements.

------>Q7. How do you quote prices, and what payment terms do you accept?
Prices are calculated according to the part number, quantity, quality level, packaging and delivery terms. A detailed quotation will be provided after we review your purchasing list. Common payment methods include T/T and L/C, with payment terms confirmed according to the order value and cooperation conditions.

------>Q8. What are your delivery and after-sales arrangements?
Delivery time depends on stock availability, order quantity and customization requirements. We can arrange consolidated shipment through Qingdao, Tianjin, Shanghai or Guangzhou. If any product issue occurs, please provide photos, videos, quantities and package labels, and our team will review the case and offer an appropriate solution.

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Submit an Inquiry

Fill out the form below to share your requirements with us. Our team will review your message and respond promptly.

Phone

+86 15106936868

Email

CEO@wopuhv.com

WhatsApp

+86 15106936868

Address

Jin'an Tianqiao District Quanli Heavy-Duty Truck Parts City, Unit 7-119
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