WESPC Diesel Engine 9323A260G 9323A262G Fuel Injection Pump For Perkins

WESPC Diesel Engine 9323A260G 9323A262G Fuel Injection Pump For Perkins

Application:

The 9323A260G and 9323A262G rotary distributor pumps are purpose-built for the naturally aspirated and turbocharged Perkins 1103A-33T, 1103B-33T, 1103C-33T and 1104A-44T mechanical-injection engines (3.3 L and 4.4 L, 3- and 4-cylinder) that power Massey Ferguson 2400-series and 3400-series agricultural tractors, Landini Powerfarm 85/95/105 models, JCB 3CX backhoe loaders and 526-56 Loadall telehandlers, plus Pramac GSW38P and GSW45P tow-behind generator sets. They deliver precisely-metered fuel for engines rated 55 kW to 74 kW at 2 200 r/min and are fully compliant with EU Stage II and EPA Tier 2 emission bands.

Technical specifications:

The pump housing is a single-piece, close-grain cast-iron shell with integral cam ring and distributor head, centre-line mounting flange to SAE J744 size 2, pilot Ø101.6 mm, four M10 holes on 146 mm PCD. Plunger diameter is 9 mm with 8.8 mm stroke, generating peak injection pressures up to 1 350 bar. The internal positive-displacement vane feed pump delivers 110 L/h at 350 kPa; the hydraulic automatic advance mechanism provides 5° crankshaft advance from 1 000 r/min to 2 400 r/min. Drive hub accepts 12 mm Woodruff key and is dynamically balanced to ISO 1940 Grade G2.5. Static timing is 12° BTDC ± 1°. All external seals and O-rings are FKM (Viton) compound for reliable sealing with biodiesel blends up to B20 and arctic-grade winter diesel.

Material & performance features:

The plunger and distributor rotor are machined from vacuum-degassed 20MnCr5 alloy steel, case-hardened to 0.8 mm effective depth and super-finished to 0.2 µm Ra for minimal leakage and long-term metering accuracy. Cam-ring lobes are induction-hardened to 58–62 HRC, while roller tappets receive a tungsten-carbide PVD coating to resist scuffing under high transient loads. A lightweight aluminium governor sleeve with PTFE-impregnated bore eliminates stick-slip and ensures rapid idle recovery. The pump head is sealed by a laser-welded steel cap to prevent internal pressure loss, and the electromagnetic shut-off valve is encapsulated in glass-fiber-reinforced nylon rated IP67 for dust and moisture protection. A torsional vibration damper integral to the drive hub limits peak twist to <0.15°, reducing gear-train noise and extending engine life.

Interchange part numbers:

PERKINS 9323A260G, 9323A262G, 9323A261G, 9323A263G; MASSEY FERGUSON 4222001M91, 4222002M91; LANDINI 747725M91, 747726M91; JCB 331/20012, 331/20013; PRAMAC 6000-45010, 10000-45010; reference equivalent to 1-12320-610-0 and 04279-0L010 assemblies.

WESPC(Dongguan)Tech Co., Ltd. is a wholly-owned subsidiary of WESPC Hong Kong.

The company has long been deeply engaged in the Perkins aftermarket spare parts sector, while also covering a wide range of multi-brand engines and related components. With years of professional expertise and a solid reputation, WESPC provides customers with diverse, one-stop solutions tailored to their needs.

Leveraging the global vision of its Hong Kong headquarters and the strategic location advantages of Dongguan, WESPC Dongguan is committed to building a highly efficient and reliable supply chain system, supported by professional technical expertise and comprehensive after-sales services, to continuously create greater value for its customers.

Looking ahead, the company will continue to expand its business landscape, keep pace with industry trends, and consistently enhance product and service quality—working hand in hand with global partners to achieve mutual growth and success.