KANGDA 2QT28 / BH2QT90R9 – Fuel Injection Pump For 2110 Diesel Engine

Engineered for the 2110 series industrial diesel platform, the KANGDA BH2QT90R9 (Order No. 2QT28) is a BQ series two-cylinder in-line distribution pump that delivers precise high-pressure fuel metering under sustained load conditions. Rated at 33 kW with a governed speed of 2600 rpm, this assembly is specified as original equipment by host manufacturer Yongkang for compact construction machinery, agricultural tractors, and stationary gensets. Manufactured under ISO/TS16949 protocols, the BH2QT90R9 provides the injection consistency and mechanical ruggedness demanded by off-highway applications where fuel system dependability directly impacts productivity and repair schedules.

This pump finds regular application across off-road diesel equipment powered by the 2110 engine, including loader backhoes, small excavators, and generator sets deployed in remote sites. Yongkang integrates the BH2QT90R9 as an OEM-specified component, confirming its suitability for rigorous duty cycles . For North American and European aftermarket channels, the 2QT28 assembly offers a drop-in replacement solution for fuel systems degraded by contamination, varnish deposits, or plunger wear. Workshops servicing Chinese-manufactured compact plant equipment, as well as fleet operators managing mixed-brand machinery, will find this pump ensures consistent fuel delivery without the need for recalibration or pump bench modification.

Achieving full operational reliability with the BH2QT90R9 begins with careful preparation of the 2110 engine's drive housing. Inspect the drive gear and pilot bore thoroughly for signs of wear or previous damage before offering up the pump. The coupling must engage the drive key smoothly; forcing the assembly into position will introduce misalignment that compromises plunger lift and injection phasing. After mounting, purge the low-pressure fuel gallery completely-air trapped in the circuit will produce erratic governor response or prevent starting altogether. Always fit fresh copper washers to all delivery line connections and apply the specified tightening torque to the holder nuts. With the pump secured, verify the static timing using the reference marks on the 2110 gear cover. A prudent additional step: install a new fuel filter and flush the supply lines to ensure no residual debris from the old pump enters the new unit, as abrasive particles are a leading cause of premature plunger wear.

In mechanically governed fuel systems, the injection pump serves as the primary pressure source and timing control element. Degraded fuel quality-particularly water contamination and particulate ingress-directly attacks the plunger and barrel interfaces, resulting in pressure loss, uneven cylinder contribution, and visible smoke during acceleration . When symptoms such as reduced power at rated speed or unstable idle appear, replacing the complete BH2QT90R9 assembly often proves more cost-effective than bench rebuilding, especially given the specialized tooling and calibration required for internal components. For service facilities, maintaining inventory of this pump reduces equipment downtime and eliminates the logistics delay of sending units to external test shops. Routine attention to fuel filtration and adherence to fuel supplier's lubricity specifications will substantially extend the working life of the new pump, protecting the metallurgy of its precision-ground internals .

Q1: Will this pump match my 2110 engine if it was built by a different OEM?
A: Yes, the BH2QT90R9 is dimensionally and functionally compatible with all 2110-series engines that use the standard Yongkang-specified mounting interface, regardless of the final equipment brand.

Q2: What performance complaints typically point to pump failure rather than injector issues?
A: An inability to reach 2600 rpm under normal loading, combined with stable injector operation, strongly indicates pump output degradation, while uneven cylinder firing usually traces to injector nozzle problems.

Q3: Is the BH2QT90R9 suitable for use with low-sulfur diesel fuels?
A: Absolutely. The pump's internal materials are compatible with current low-sulfur grades, though using a fuel additive that restores lubricity is advisable for extended service intervals.

Q4: How urgent is timing verification after pump installation?
A: Timing must be checked and confirmed on every installation-overlooking this step invites cylinder pressure imbalance, elevated exhaust temperatures, and potential engine damage.

Q5: Does KANGDA provide installation documentation with the pump?
A: Each unit ships with a basic mounting guide, and comprehensive technical data is accessible through authorized distribution channels for professional workshop reference.