Transmission Oil Pump

Typical Faults: Crescent Wear Symptom: Low line pressure (P0756/P0776 codes, delayed shifts) Cause: Abrasives score pump face (especially after torque converter failure) Drive Gear Spline Stripping Symptom: No movement in any gear (metal debris in pan) Cause: Torque converter hub wear transfers to pump Pressure Regulator Sticking Symptom: Erratic shifts or harsh engagements Trigger: Varnish buildup from degraded Dexron III Critical Measurements: Rotor Clearance: >0.15mm

Function: Generates hydraulic pressure (90-150 psi) for clutch/band operation and lubrication in Jeep/Dodge RWD applications. Key Features: Gear Type: Crescent pump design with cast aluminum housing (OEM 05015851AB ). Critical Specs: 0.05-0.10mm gear-to-housing clearance; relief valve calibrated to 160 psi. Failure Modes: Crescent Wear: Abrasives score pump face (low pressure → P1762/P2769 codes). Seal Hardening: ATF+4 breakdown causes internal leaks (slow 3-4 shifts). Drive

The transmission mechanical oil pump is the hydraulic heart of automatic transmissions. Key points: Function – Generates ATF pressure (20-100+ psi) for lubrication, cooling, and clutch/valve body actuation. Types – Gear rotor (gerotor), crescent, or vane pumps; driven by torque converter or input shaft. Failure Modes Wear : Pump gears/vanes degrade from contamination (metal debris). Seal leaks : Causes low pressure (P0841/P0868 codes, delayed shifts). Cavitation : Aerated

"The 6T40 oil pump is a gear-driven, positive displacement pump critical for hydraulic pressure (maintaining 60-90 PSI in normal operation). Key features: Design: Twin crescent-type gears with aluminum housing, driven directly by the torque converter. Functions: Supplies pressurized fluid for clutch engagement, cooling, and valve body operation. Failure Signs: Whining noise (especially when cold), delayed shifts, or pressure-related DTCs (e.g., P0841). Weak Points: Common

The **automatic transmission oil pump** is the hydraulic heart of the system: 1. **Pressure Generation** – Creates flow for clutch engagement and shift control. 2. **Lubrication** – Delivers ATF to bearings/gears to prevent wear. 3. **Cooling** – Circulates fluid to manage transmission temperatures. 4. **Torque Converter Feed** – Supplies fluid for power transfer and lockup clutch operation. Failure = loss of pressure → no shifts → transmission death!

The **automatic transmission mechanical oil pump** is crucial for: 1. **Hydraulic Pressure** – Generates flow to engage clutches/bands. 2. **Lubrication** – Protects gears/bearings from wear. 3. **Cooling** – Circulates ATF to dissipate heat. 4. **Torque Converter Operation** – Supplies fluid for power transfer. Powered by the engine (via input shaft), it ensures smooth shifts & longevity. Failure = no pressure = transmission breakdown! ⚙️

这些部件均基于我们20多年的经验,从市场上精心挑选,涵盖欧洲,美国,韩国,日本和国产品牌,以及分动箱. 我们的产品质量主要分为三大类: 1. 全新原厂配件 2. **再制造零件** 3. **二手 OEM 零件**

*"With two decades of excellence in automatic transmission manufacturing and distribution,Guangzhou Meishun Automatic Transmission Co., LTD stands as your most reliable source for top-quality transmission assemblies andcomponents. Our commitment to quality, combined with one of the industry's largest ready-to-ship inventories, ensures you get the right parts - when you need them."*

### **Let’s Do Business!** *"Whether you need a **drop-in replacement transmission**, a **hard-to-find part**, or a **custom- built performance unit**, Guangzhou Meishun Automatic Transmission Co., LTD has you covered. With our **huge stock, fast shipping, and unbeatable expertise**, we make transmission repairs and upgrades easier than ever. **Contact us today** to discuss your needs!"*

### **Looking Ahead – Growth & Innovation** - **Expanding Inventory** – Adding **EV-compatible components** for hybrid and electric vehicles. - **Smart Logistics** – Investing in **AI-driven inventory management** to ensure **99% order fulfillment**. - **Enhanced Support** – Launching a **24/7 technical helpline** for troubleshooting. delivery.

Whether you're a repair shop, dealer, or DIY enthusiast, we provide **affordable, high-performance transmissions and parts** you can count on. **Drive with confidence—choose quality, choose us!**

Our inventory includes: ✔ **Remanufactured CVT Transmissions** – Fully tested, updated, and backed by a solid warranty. ✔ **CVT Replacement Parts** – From belts and chains to valve bodies and torque converters, we supply top-grade components. ✔ **Expert Support** – Get technical guidance and trusted service from our experienced team.

Our inventory includes: ✔ **Remanufactured CVT Transmissions** – Fully tested, updated, and backed by a solid warranty. ✔ **CVT Replacement Parts** – From belts and chains to valve bodies and torque converters, we supply top-grade components. ✔ **Expert Support** – Get technical guidance and trusted service from our experienced team.

Customer Reviews -** Excellent customer service and support: ** Provide comprehensive after-sales service, including maintenance, repair and technical support. ** Competitive prices and value for money: ** * Offer competitive prices without compromising quality or performance.

Upgrade your vehicle's performance with our top-tier automatic transmission parts! Designed for durability, precision, and seamless operation, our parts are the perfect choice for both everyday drivers and automotive enthusiasts. Whether you're repairing, maintaining, or enhancing your transmission system, we’ve got you covered. Why Choose Us? 1. Quality Assurance - Ensuring every transmission undergoes strict quality control. 2. Competitive Pricing - Factory-direct sales

Upgrade your vehicle's performance with our top-tier automatic transmission parts! Designed for durability, precision, and seamless operation, our parts are the perfect choice for both everyday drivers and automotive enthusiasts. Whether you're repairing, maintaining, or enhancing your transmission system, we’ve got you covered. Why Choose Us? 1. Quality Assurance - Ensuring every transmission undergoes strict quality control. 2. Competitive Pricing - Factory-direct sales

Upgrade your vehicle's performance with our top-tier automatic transmission parts! Designed for durability, precision, and seamless operation, our parts are the perfect choice for both everyday drivers and automotive enthusiasts. Whether you're repairing, maintaining, or enhancing your transmission system, we’ve got you covered. Why Choose Us? 1. Quality Assurance - Ensuring every transmission undergoes strict quality control. 2. Competitive Pricing - Factory-direct sales

Company Introduction Guangzhou Meishun Automatic Transmission Co., Ltd. is located in Guangzhou Jingu Science and Technology Industrial Park. We focus on automotive automatic transmission assembly and spare parts, ensuring quality and stability through advanced CNC robots and testing equipment. Our products are popular in China and exported globally. We offer a wide range of transmission accessories, fully meeting customer demands with strong inventory and competitive prices

Company Introduction Guangzhou Meishun Automatic Transmission Co., Ltd. located in Guangzhou Jingu Science and Technology Industrial Park with convenient transportation access and beautiful environment. We warmly welcome customers from all over the world to visit our factory and cooperate with us. Our Service We provide expert consultation to help clients choose the right transmission solutions tailored to their specific needs. Our team offers custom transmission solutions

Company Introduction Meishun company i n order to improve the quality and stability of our products, each product must go through the initial test of intelligent testing equipment to ensure that the standard working valve required by the products is met. Then, the second real vehicle test is carried out to ensure that the driving performance of the product is smooth. Our Service 1. We provide expert consultation to help clients choose the right transmission solutions tailored