gear box oil pump

Company strength​ Meishun company focuses on automotive automatic transmission assembly, spare parts, maintenance parts including valve body, chain belt, pulley set, solenoid valve kit, clutch kit, seal kit, TCU, control models, differential, oil pump, piston, etc. A full range of transmission accessories cover all models. Our Services We supply high-quality replacement parts for various transmission models to ensure optimal functioning. We provide detailed technical

Company strength​ Meishun company focuses on automotive automatic transmission assembly, spare parts, maintenance parts including valve body, chain belt, pulley set, solenoid valve kit, clutch kit, seal kit, TCU, control models, differential, oil pump, piston, etc. A full range of transmission accessories cover all models. Our Services We supply high-quality replacement parts for various transmission models to ensure optimal functioning. We provide detailed technical

QR025CHA CVT Oil Pump Assembly (P/N: 3028501101) – Chery Tiggo 4/7/8 Application Technical Verification: With 20 years of CVT expertise , our engineering team confirms this oil pump meets exact OEM specifications for Chery QR025CHA transmissions. Product Specifications: Direct replacement for P/N 3028501101 Complete pump assembly with housing and gears Compatible with Tiggo 4/7/8 models Pre-set pressure relief valve calibration Critical Features: • 12-tooth rotor design with

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

Product Highlights: ✔ Direct Fit for GM 4L60E & 4L65E Transmissions – Precision-engineered to restore proper hydraulic pressure & fluid flow for smooth shifting.✔ OEM-Quality Construction – Heavy-duty gears, housing, and seals prevent pump failure, pressure loss, and premature wear .✔ Fixes Common Transmission Issues – Solves low pressure, delayed shifts, slipping gears, and whining noises caused by worn pumps.✔ Easy Bolt-On Installation – Matches factory specs; no modificati

✅ OEM Direct Fit : Specifically designed for Kia Seltos models with the A6GF1-2 automatic transmission. ✅ Solves Critical Issues : Addresses low pressure, transmission slipping, delayed shifting, gear engagement failures, and warning lights (e.g., transmission overheating). ✅ Prevents Total Transmission Failure : Rebuilds proper fluid pressure to protect clutches, solenoids, and valve body. ✅ Genuine Reliability : Manufactured to Kia’s strict OEM standards (Part #461002F000)

Typical Faults: Rotor/Gear Wear Symptom: Low line pressure (P0841/P0868 codes, delayed shifts) Cause: Contaminated ATF or metal debris scoring surfaces Seal Failure Symptom: Pressure loss at idle (pump whine) Trigger: Hardened/rolled seals from heat/age Cavitation Damage Symptom: Foamy ATF, erratic shifts Root Cause: Clogged filter or aerated fluid Critical Checks: Clearance: Rotor-to-housing >0.15mm = replace Prime Test: Should generate 20+ psi instantly at crank Debris

Function: Generates hydraulic pressure (80-150 psi) to actuate clutches, lubricate components, and cool the transmission. Driven by the torque converter or input shaft. Key Components: Gear Types: Gerotor (most common), crescent, or vane pump designs. Critical Parts: Pump housing, inner/outer rotors, pressure relief valve, and seals. Failure Modes: Wear: Contaminated ATF causes rotor scoring (low pressure → P0841/P0868 codes). Cavitation: Air ingestion from clogged filter

Function: High-pressure hydraulic supply (25–120 psi) for clutch actuation and lubrication in Ford RWD applications. Design: Variable-displacement vane pump (12-vane rotor, hardened steel housing) Electronic pressure control valve (PWM-regulated flow) Key Specs: Flow rate: 18–22 L/min @ 2500 RPM Clearance: 0.02–0.05mm vane-to-cam (replace if >0.12mm) Relief valve setting: 135±5 psi Failure Modes: Vane sticking (debris or fluid oxidation) Pressure sensor drift (causing shift