High Quality Used E40D/4R100 Transmission Oil Pump RF-F81P-7B324-AA for Ford F-350
- Full Disassembly & Inspection: The pump is completely disassembled, and all components are inspected for wear, damage, and defects.
- Deep Cleaning: All components are cleaned to remove debris, sludge, and contaminants.
- Component Replacement: Worn gears, bearings, and seals are replaced with high-quality replacement parts.
- Assembly & Pressure Testing: The pump is reassembled and tested for pressure output, flow rate, and performance under simulated operating conditions.
- Final Quality Control: Visual and functional inspection before packaging to ensure defect-free delivery.
- Professional Installation Required: Requires certified technicians for removal and installation.
- Transmission Overhaul Recommended: Replace the oil pump during full transmission overhaul or when experiencing low pressure issues.
- Fluid Recommendation: Always use the specified Ford transmission fluid to ensure proper lubrication and pump performance.
- Packaging: The pump is carefully secured in shockproof foam and a sturdy export carton to prevent damage during transit. Custom packaging is available on request.
- Shipping: We support worldwide shipping via multiple logistics providers, offering door-to-door delivery services.
- Lead Time: In-stock units are shipped within 1-5 working days after payment confirmation. Bulk orders will be processed according to production schedules.
We are a professional manufacturer & trade integrated company specializing in automatic transmission parts for Ford, GM, and other American brands. Our main products include oil pumps, clutches, valve bodies, solenoids, and overhaul kits for AT/CVT/DCT transmissions.
We provide:
- Professional technical support and fitment consultation
- OEM/ODM customization services
- Flexible payment terms and competitive pricing
- Long-term cooperation support for auto parts wholesalers, repair shops, and distributors worldwide
Q1: Will this pump fit my Ford F-350?
A1: This pump is designed for Ford F-350 models with the E40D/4R100 automatic transmission (1999-2003 / 2017-2019). Please confirm your vehicle model, year, and transmission type before ordering.
Q2: Is this a new or used part?
A2: This is a professionally tested and serviced used oil pump, rebuilt with necessary new components and fully tested to OEM specifications.
Q3: What issues can this pump resolve?
A3: It fixes common transmission problems like low line pressure, slipping, delayed shifts, lubrication issues, overheating, and related error codes caused by a faulty or worn pump.
Q4: Do you offer bulk pricing for repair shops?
A4: Yes, we offer discounted pricing for bulk orders and long-term cooperative partners such as transmission repair shops and auto parts wholesalers. Please contact us for a custom quote.



Used E40D transmission oil pump
,4R100 oil pump for Ford F-350
,RF-F81P-7B324-AA oil pump
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1. Testing & Quality Control Process Full Disassembly & Inspection : The transmission is completely disassembled, and all components are inspected for wear, damage, and defects. Deep Cleaning : All components are ultrasonically cleaned to remove debris, sludge, and contaminants. Component Replacemen... -
High Quality Used E40D/4R100 Transmission Oil Pump RF-F81P-7B324-AA for Ford F-350
1. Testing & Quality Control Process Full Disassembly & Inspection : The pump is completely disassembled, and all components are inspected for wear, damage, and defects. Deep Cleaning : All components are cleaned to remove debris, sludge, and contaminants. Component Replacement : Worn gears, ... -
Used E40D/4R100 Transmission Oil Pump RF-F81P-7B324-AA for Ford F-350 1999-2003/2017-2019
1. Product Overview This is a professionally tested used transmission oil pump , OE part number RF-F81P-7B324-AA , designed for the Ford E40D/4R100 automatic transmission . It is compatible with Ford F-350 models from 1999-2003 and 2017-2019. The oil pump is the heart of the transmission, providing ...