WESPC Fuel Injection Pump 2643B323 For Perkins For Diesel Engine T4.236

WESPC Fuel Injection Pump 2643B323 For Perkins For Diesel Engine T4.236

Application:

The 2643B323 fuel injection pump is engineered as a precision replacement for Perkins T4.236 and AT4.236 turbocharged 4.0 L diesel engines, ensuring accurate high-pressure fuel metering and timing across a diverse range of applications. In agricultural tractors such as Massey Ferguson 265, 275, 290, 390T and 398; Landini 10000 Series; and Fiat 640, this pump delivers consistent injection performance under heavy field loads and fluctuating engine speeds. Combine harvesters including Massey Ferguson 750, 760 and 850 models and the White 8600 Series depend on its stable fuel delivery and repeatable injection timing to maintain clean combustion and responsive throttle during extended harvesting cycles. Stationary generator sets built on the Perkins T4.236 platform by FG Wilson, KOHLER and Fairbanks Morse (60 kVA–100 kVA) rely on the 2643B323 pump to achieve smooth output, low smoke and dependable prime or standby power operation. In industrial machinery—such as irrigation pumps, air compressors and hydraulic power units driven by T4.236 engines—the pump’s robust design minimizes downtime and extends service intervals in continuous or cyclical heavy-duty service.

Technical specifications:

The 2643B323 is an inline-plunger injection pump featuring four plungers of 7.94 mm diameter operating against a 58 mm cam ring. It is calibrated to generate up to 2 050 bar of peak injection pressure with a maximum flow rate of 125 L/h at rated speed. The drive interface employs a 12-tooth spline flange for clockwise rotation, while standardized 8 mm BSPP fuel inlet and M10×1 high-pressure outlet ports ensure compatibility with factory fuel lines. Overall dimensions measure approximately 180 mm in length, 140 mm in width and 95 mm in height, with a nominal weight of 7.2 kg. Factory bench calibration aligns with Perkins engine serial ranges 510 001–590 000 and incorporates a fixed mechanical advance of 5° BTDC at low idle for optimized combustion timing.

Material & performance features:

Encased in a high-strength aluminum alloy housing for rapid heat dissipation, the 2643B323 pump’s internal cam ring and plungers are precision-machined from nitrided alloy steel to resist wear and high-cycle fatigue. Plungers are ceramic-coated and operate within ultra-smooth bores held to ±0.01 mm tolerances to minimize friction and withstand abrasive fuel contaminants. Fluorocarbon O-rings and seals offer exceptional resistance to diesel, biodiesel blends and common additives, while an integrated mechanical governor assembly housed in corrosion-resistant stainless steel delivers stable fuel delivery under transient load changes. All external surfaces feature a phosphate-based corrosion-inhibitive finish to protect during storage and installation.

Interchange part numbers:

Perkins 2643B323; Massey Ferguson 3836587M91; Landini 947601M91; Fiat 4220868; Weichai-Weifu WG2643B323.