Transmission Housings
- MaterialsHigh-Strength Cast Iron
- SizesStandard OEM Specifications & Custom Sizes
- Applicable ModelsHeavy-Duty Trucks & Commercial Machinery
- surface treatmentPhosphating & Anti-Rust Oil Coating
- OEM/CustomizedOEM / ODM Manufacturing & Custom Sample Development Available
Product Overview
Changwei manufactures high-quality Transmission Housings (Gearbox Housings) for commercial vehicles, construction machinery, agricultural equipment, and industrial power systems.
As the main structural component of a transmission system, the transmission housing supports gears, shafts, bearings, and other internal components while ensuring proper alignment, lubrication, and protection. Manufactured with premium casting materials and precision CNC machining, our products provide excellent dimensional accuracy, structural strength, sealing performance, and long service life.
We supply both OEM and aftermarket replacement parts worldwide and support customized manufacturing based on drawings, samples, and OEM part numbers.
Product Features
- OEM Replacement Quality
Manufactured according to OEM specifications, ensuring proper fitment and reliable performance for Sinotruk diesel engines.
- Precision Machining
Critical mounting surfaces and internal machining areas are processed by CNC equipment to maintain accurate dimensions and assembly compatibility.
- Strong Casting Structure
High-strength cast iron provides excellent rigidity, vibration resistance, and durability under heavy-duty working conditions.
- Rust Protection & Surface Finishing
Internal machined surfaces receive rust prevention treatment. External surfaces can be supplied with painted finish or original casting finish according to customer requirements.
- Custom Manufacturing Capability
We support custom orders based on:
Product drawings
Samples
OEM part numbers
Technical specifications
for tooling development, casting production, and precision machining.
Applications
This Sinotruk timing gear housing is suitable for:
- Heavy-duty trucks
- Commercial vehicles
- Construction machinery
- Generator Sets
- Agricultural Equipment
- Industrial Diesel Engines
Contact Us
If you are looking for a reliable Sinotruk HOWO timing gear housing supplier, please provide:
- Product Model
- OEM Part Number
- Drawings
- Samples
- Purchase Quantity
Our engineering team will provide you with professional production solutions and quotation support
Product Model
TP4P371010001K
TP4M371010001
TM3C371010005
TD2S371060002a
TX2S371020002MP
We maintain a rigorous, full-process quality assurance system certified under IATF 16949:2016. From metallurgical inspection of raw materials to precision CNC machining, heat treatment, dynamic balancing, and final dimensional verification, every manufacturing phase is closely monitored. Strict first-piece inspection (FAI), in-process checks, and final audits ensure full lot traceability, high dimensional consistency, and exceptional durability for every batch.
End-to-End Quality Inspection
Comprehensive raw material testing, in-process dimensional control, and 100% final inspection to guarantee product consistency.
Dynamic Balance Testing
All flywheels undergo precision dynamic balance inspection to eliminate vibration, ensuring high operational stability and long service life.
Full Batch Traceability
Every product batch features a unique production code and complete quality records, supporting full supply chain traceability and customer audits.
We offer integrated manufacturing capabilities spanning in-house casting, high-precision CNC machining, heat treatment, and component assembly. Backed by rapid OEM/ODM engineering support, we seamlessly guide projects from initial sample prototyping to high-volume production. Dedicated account engineers oversee every stage, ensuring efficient delivery for both large-scale OEM contracts and flexible, multi-category custom orders.
Integrated Casting & Machining
n-house foundry and advanced multi-axis CNC machine center ensure precision dimensions and steady capacity.
Rapid OEM/ODM Response
Dedicated engineering team providing fast sample development, custom drawing reviews, and technical project support.
Flexible & Scalable Production
Adaptable manufacturing lines designed for high-volume orders as well as flexible, multi-model small-batch deliveries.
We offer tailored rust-proof, anti-collision, and moisture-resistant packaging solutions engineered for global sea and land transit. From heavy-duty wooden crates and fumigated pallets to customized SKU labeling, our packaging meets international export standards. We accommodate flexible shipping options—including LCL batch shipments, FCL full container loads, and tailored retail/aftermarket packaging—to align with your supply chain needs.
Custom Export Packaging
Heavy-duty rust-proof oil coating, anti-collision wrapping, and sturdy ISPM-15 wooden crates or fumigated pallets for safe ocean freight.
Flexible Shipping Options
Flexible delivery models supporting LCL batch shipments and FCL full container transport to match your inventory schedules.
Custom Labeling & Marking
Tailored shipping marks, QR codes, and custom barcoding to streamline warehouse intake and aftermarket channel distribution.
Get a quote
For product quotes, sample lead times or customization suggestions, please click the button below to go to the RFQ page and we will respond as soon as possible based on product type, quantity and delivery requirements.