0445020611 New Bosch Diesel Fuel Pump – Compatible with Bosch for Massey Ferguson Activa 4.9 (2015 Onwards) | Rsolid Engine Parts
Massey Ferguson Activa combines are renowned for their harvesting performance, fuel efficiency, and reliability in the field. At the heart of the Activa 4.9‘s AGCO Power diesel engine lies the Bosch CP4 common rail fuel injection system — and the 0445020611 high-pressure fuel pump is the critical component that delivers the precise, high-pressure fuel needed for optimal combustion.
This pump is fully compatible with Bosch CP4.2 architecture and serves as a direct OE replacement for Massey Ferguson Activa combines manufactured from 2015 onwards, as well as a wide range of AGCO Power‑equipped tractors and combines. Rsolid Engine Parts supplies the 0445020611 as a brand‑new, genuine Bosch‑compatible unit, 100% calibration tested, and backed by a full 12‑month warranty at competitive pricing.
1. Structural Advantages of the Bosch CP4 0445020611 Pump
The 0445020611 belongs to the Bosch CP4.2 generation (type formula CR/CP4N2/R995/40‑S), representing the latest evolution of high-pressure common rail pump technology. This pump offers several engineering advantages specifically suited to demanding agricultural applications:
CP4.2 Two‑Plunger Radial Design – The CP4.2 pump features two opposing plungers arranged radially around a precision‑ground eccentric cam, delivering smooth, high‑volume fuel flow with consistent pressure delivery across the entire engine operating range. This design is more compact and lighter than earlier CP3 pumps while producing significantly higher injection pressures.
Integrated Vane‑Type Transfer Pump – A built‑in low‑pressure vane pump draws fuel directly from the tank and supplies the high‑pressure plungers, eliminating the need for a separate external lift pump and simplifying installation on the AGCO Power 4.9 engine.
High‑Pressure Capability (2,000 bar) – The CP4 pump is engineered to operate at pressures up to 2,000 bar (29,000 psi) , ensuring exceptional fuel atomization for complete combustion, reduced emissions, and improved fuel economy even under heavy harvesting loads.
High‑Pressure Fuel Lubrication – All internal moving parts (plungers, roller shoes, eccentric cam) are lubricated solely by diesel fuel, eliminating external oil lines and ensuring consistent lubrication regardless of engine oil condition. This is a critical advantage for combines that operate in dusty field conditions.
Integrated Digital Flow Control Valve (ZME) – An inlet metering solenoid valve precisely regulates the amount of fuel entering the high‑pressure section based on ECU demand, delivering accurate rail pressure control, improved throttle response, and lower fuel consumption during variable load harvesting operations.
Robust Cast Housing with Anti‑Corrosion Coating – The pump body is manufactured from high‑strength materials with a protective coating, engineered to withstand the vibration, thermal cycling, dust, and moisture exposure typical of combine harvester operation.
Direct Bosch CP4.2 Compatibility – Identical mounting flange (SAE standard), drive gear interface, high‑pressure outlet ports, and electrical connector as the original Bosch 0445020611. Plug‑and‑play replacement with no modifications required.
Wide Cross‑Reference Compatibility – This pump carries multiple cross‑reference numbers including V837074805, 837074805, and 0986437702, making it easy to verify fitment against your original part.
2. Compatible Massey Ferguson Activa 4.9 Models (≤5)
The 0445020611 pump is specifically calibrated for the AGCO Power 4.9 litre, four‑cylinder diesel engine (engine code 49AWF), which powers the following Massey Ferguson Activa combine harvester models from 2015 onwards:
Massey Ferguson Activa 7340 (2015 onwards) – 4.9 litre, 4‑cylinder, 125 kW / 167.6 bhp, engine code 49AWF. This model features Fourth Generation common rail fuel injection with advanced engine technology for improved efficiency and economy.
Massey Ferguson Activa 7342 (2015 onwards) – 4.9 litre, 4‑cylinder, 185 bhp variant of the AGCO Power engine.
Massey Ferguson Activa 7344 (2015 onwards) – 4.9 litre, 4‑cylinder (some variants), engine code 49AWF. The larger 7.4 litre six-cylinder version uses a different pump variant.
Massey Ferguson Activa 7345 – 4.9 litre AGCO Power engine, compatible with the 0445020611 pump.
AGCO Sisu Power & Wider AGCO Applications – This pump is also used across the broader AGCO Power engine family, including Valtra N Series tractors (N134, N154, N174) and Fendt combines (5185E, 5225E, 5255L, 5275C, 6275L, 6335C, 8380P, 9490X) equipped with engine codes 44AWF, 74AWF, 84AWF, and 98AWF. For Massey Ferguson MF 8700 Series tractors (8730, 8732, 8735, 8737), the 0445020611 is also the specified high-pressure pump.
✅ Important Fitment Note – Before ordering, always verify the Bosch number on your original pump (stamped on the pump body nameplate) and confirm your engine code (49AWF for the Activa 7340). Cross‑reference numbers include 0445020611, 837074805, V837074805, and 0986437702.
3. Common Failures & Professional Installation/Replacement Advice
3.1 Typical Symptoms of a Failing CP4 0445020611 Pump
Loss of engine power under harvesting load – The combine struggles to maintain rotor speed or ground speed when processing heavy crop material, often accompanied by black exhaust smoke.
Extended cranking time before start – The engine takes longer than normal to start, especially after the combine has been parked overnight.
Engine surging or rough idle – Inconsistent fuel delivery at low RPM, causing the engine to hunt or misfire during stationary operation.
DTC codes P0087, P0088, P0191 – Rail pressure too low, rail pressure too high, or fuel pressure sensor rationality fault. A diagnostic tool such as AGCO Electronic Diagnostic Tool (EDT) or Bosch KTS will confirm these codes.
Metal particles in the fuel filter – A clear sign of CP4 internal wear (plunger scuffing or roller bearing failure). Even small amounts of ferromagnetic debris indicate imminent pump failure.
External fuel leakage – Visible diesel wetness around the pump body, particularly at the drive shaft seal, the high‑pressure outlet, or around the ZME valve mounting area.
Unusual noise from the pump area – Whining, grinding, or metallic clicking sounds that change with engine RPM, indicating bearing or cam wear.
Diesel contamination in engine oil – Rising oil level with a strong diesel smell indicates a failed drive shaft seal, allowing fuel to enter the timing case and then the engine oil sump.
3.2 Professional Installation & Replacement Recommendations
Perform a complete fuel system diagnosis – Before pump replacement, use AGCO EDT or a compatible diagnostic tool to verify rail pressure values, injector return flow rates, and identify any related faults in the common rail system.
Replace all fuel filters – AGCO Power engines have a primary (water separator) and secondary fuel filter. Install new, genuine AGCO or OEM‑quality filters. The CP4 pump is highly sensitive to contamination.
Flush the entire fuel system – Drain and clean the fuel tank. Blow out all supply and return lines with compressed air. Replace any rubber hoses that show degradation. Debris from a failed pump will destroy a new CP4 unit within minutes. This step is non‑negotiable.
Inspect and flow‑test all injectors – Worn or stuck injectors with high return flow will prevent the pump from building correct rail pressure and will cause repeat pump failure. Have all four injectors professionally flow‑tested and cleaned or replaced as necessary.
Replace the engine oil and filter – If diesel has leaked past the drive shaft seal (evidenced by rising oil level or diesel smell), change the oil and filter BEFORE running the new pump.
Prime the low‑pressure circuit – Before starting the engine, use a hand vacuum pump on the fuel return line to pull bubble‑free fuel through the pump and filters. CP4 pumps are extremely sensitive to aeration — never dry‑crank the pump.
Fill the pump with clean diesel – Remove the high‑pressure outlet fitting and pour clean, lubricious diesel (or Bosch special assembly lubricant) into the pump housing to prevent dry start scoring of the plungers and eccentric cam.
Torque all connections to specification – High‑pressure outlet (M14×1.5 cone seal): 40–45 Nm. Low‑pressure inlet and return: 25 Nm. Drive shaft nut: consult the AGCO workshop manual (typically 100–120 Nm). Over‑torquing can crack the pump housing; under‑torquing causes leaks.
Reset fuel adaptations – After installation, use AGCO EDT to clear learned fuel trim values and perform a “high‑pressure pump adaptation” or “fuel system learn” routine.
Perform a leak test – Idle the engine for 10 minutes, then inspect all high‑pressure and low‑pressure unions, the pump mounting area, and the drive shaft seal for any signs of fuel wetness.
Monitor rail pressure – Using live data on AGCO EDT or a compatible diagnostic tool, verify that actual rail pressure tracks within ±20 bar of specified pressure across all RPM ranges.
💡 Pro Tip – CP4 pumps are notoriously sensitive to water contamination and poor‑quality diesel. Always drain the water separator daily during harvest season. Consider installing a secondary 5‑micron fuel filter and using a fuel additive with lubricity enhancer when using biodiesel blends.
4. Why Choose Rsolid Engine Parts as Your Supplier
✅ Exact Bosch CP4.2 Compatibility – Direct replacement for 0445020611 in all listed Massey Ferguson Activa 4.9 (2015 onwards) and AGCO Power engine applications. No modifications, no adapters.
✅ 100% Calibration Tested – Each pump is run on a Bosch EPS 200 or equivalent test bench to verify delivery volume, rail pressure stability (2,000 bar capability), ZME regulator response, and leak‑free operation. Test reports available upon request.
✅ 12‑Month Warranty – Full coverage against manufacturing defects for all pumps supplied, even for high‑hour agricultural applications.
✅ Competitive Pricing for Agricultural Workshops & Dealers – Volume discounts available for farm machinery repair shops, parts distributors, and agricultural cooperatives.
✅ Fast Worldwide Shipping – Stock held in multiple warehouses for rapid dispatch to Europe, Africa, Asia, the Americas, and the Middle East.
✅ Expert Technical Support – Our diesel injection specialists provide pre‑purchase fitment verification, diagnostic assistance, and detailed installation guidance via WhatsApp or email.
Contact Rsolid Engine Parts Today
📞 WhatsApp: +8615975376778
📧 Email: amy@rinjector.com
