Brand New U440 Automatic Transmission Assembly OE S04035 For Changan 1.5L 1.6L FWD Passenger Car Replacement Gearbox Wholesale For Repair Workshops Aftermarket Unit

1.Product Overview

This is a brand‑new complete U440 automatic transmission assembly, original OE number S04035, manufactured for Changan front‑wheel‑drive passenger vehicles. The whole unit comes fully assembled with torque converter, solenoid pack, valve body, internal planetary gear set and TCU related connectors pre‑installed. No internal disassembly required before installation. Every unit leaves factory with full functional test, designed as direct replacement for failed original gearbox, widely supplied for overseas auto repair workshops, aftermarket dealers and auto parts importers. No rebuild or recondition work done, all internal components are brand‑new original factory parts.

2.Fitment & Parameter Table

Fitment Year Range: 2012‑2022 Changan 1.5L /1.6L FWD models. Please cross‑check VIN code and original gearbox part number S04035 before placing orders to avoid mismatching issue.

3.Inspection & Testing Standard

Every brand‑new U440 transmission goes through multi‑item factory inspection before shipment. First visual inspection for housing casting, thread hole, sealing surface and connector ports to eliminate casting defect, crack or scratch. Then bench dyno testing simulates real‑vehicle working condition: test shifting logic for all forward gears and reverse gear, check solenoid response, oil pressure stability, torque converter locking function, no oil leakage at each sealing position. Electrical connector circuit test is completed to guarantee signal communication. All test data will be recorded, defective units will be rejected and will not be arranged for export shipment.

4.Core Competitive Advantages

1. 100% brand‑new whole assembly, not used or remanufactured product, all internal gears, clutches, solenoid valves are original new components, greatly extend service life after installation.
2. Complete unit pre‑assembled with torque converter, clients do not need to source extra internal spare parts for direct replacement.
3. Strict factory bench test finished, every gear shifting function and oil pressure performance verified, lower on‑site installation failure risk for repair shops.
4. Strictly match OE number S04035 for Changan 1.5L/1.6L FWD models, high interchangeability for original factory gearbox.
5. Stable wholesale supply capacity, support bulk order for overseas auto parts importers.

5.Professional Installation Guidance

1. Confirm original OE number S04035, vehicle VIN, displacement and drive type before installation, verify the U440 unit is compatible with target vehicle.
2. Thoroughly clean vehicle oil cooler and pipeline, remove old metal debris inside oil circuit, prevent foreign substance entering new transmission.
3. Install new transmission oil filter and fill up specified volume of ATF automatic transmission fluid according to factory specification.
4. Double‑check all wiring connectors, oil pipe joints, mounting bolts, guarantee all connections are fastened properly.
5. After physical installation complete, perform vehicle adaptive learning procedure, test each gear shift under static condition firstly, then carry out road test.
6. Professional certified transmission technician is required for installation; improper installation will void product relevant support.

6.Packaging & Transportation

Each U440 automatic transmission will be wrapped with anti‑rust plastic film, equipped with shock‑absorbing foam protection for housing and protruding connectors. Then fixed inside fumigated solid wooden crate with IPPC mark for oversea sea freight. Fastening steel belts are used inside wooden case to avoid shifting and collision during long‑distance ocean transportation. We support FOB, CIF, DDP trade terms. Bulk orders can be loaded in full container or LCL consolidation shipment. Marking including model number, OE number, weight and dimension will be printed outside wooden package for easy customs clearance.

7.Factory Strength Introduction

We are professional factory supplying brand‑new, remanufactured and used automatic transmission assemblies for global aftermarket. Our workshop owns complete transmission assembling line and professional bench test equipment. We have rich export experience for global auto parts market, serve large numbers of overseas distributors, repair chain stores and auto parts importers. Strict incoming‑material inspection, production‑process monitoring and finished‑product testing system are implemented. We can provide commercial invoice, packing list and other documents for customers’ customs declaration requirement. Stable monthly output supports large‑volume wholesale orders.

8.FAQ

Q1: Does this brand new U440 transmission include torque converter?

A: Yes, our brand‑new U440 complete assembly is supplied together with matched original torque converter. You can get the full set for direct vehicle installation. We have finished matching test between torque converter and gearbox inside factory, so you do not need to purchase extra torque converter separately. Please make sure your target vehicle matches OE S04035 before purchase.

Q2: Can you ship bulk U440 transmission for our auto parts importing business?

A: Absolutely yes. Our factory has stable monthly production capacity for U440 gearbox. We support both LCL partial container and FCL full container shipment. We can offer competitive wholesale price according to your order quantity, and supply all required shipping documents for customs clearance. Please send us your target order quantity and destination port to get formal quotation.

Q3: What should I do if gear shifting abnormal happens after installation?

A: Firstly confirm installation work is finished by professional technician, oil cooler and pipeline are fully cleaned, correct ATF fluid is filled. Then complete transmission adaptive learning on vehicle diagnostic tool. If problem still exists, please provide vehicle VIN, fault code and detailed symptom for our technical team analysis. Improper installation or dirty oil circuit will cause abnormal shift, which is not covered by factory‑related support.