235-2716 plunger pump For Caterpillar 980G and 980H wheel loader

Short Description:

157-6081 variable axial plunger pump is heavy-duty hydraulic replacement for Caterpillar D5N, D5N XL, D5N LGP bulldozer with 3126B engine. It adopts swash plate load sensing control structure to deliver adjustable high-pressure hydraulic oil for blade and tilt hydraulic circuits.

Product Detail

Product Tags

description

235-2716 axial variable piston pump serves as the core hydraulic power source for Caterpillar 980G and 980H large wheel loaders. Driven by the engine, it converts mechanical energy into high-pressure hydraulic energy, supplying variable flow and pressure for boom lifting, bucket operation and steering hydraulic actuators. The built-in load-sensing swash plate control automatically adjusts pump displacement based on actual load demand. It only outputs required flow and pressure under different working conditions, reducing unnecessary power consumption and heat generation. The core components are forged from high-strength alloy steel. Plungers, cylinder block, valve plate and sliding shoes are precision machined and nitrided to achieve outstanding wear resistance and fatigue resistance, coping with frequent heavy loading and material stacking cycles. Thickened cast iron pump housing undergoes stress relief annealing to eliminate internal residual stress, withstand repeated pressure shocks and strong vibration, preventing pump body deformation and cracking under heavy load.

product parameters

Part No：235-2716
Product Type：Variable Displacement Axial Piston Pump
Applicable Equipment：CAT 980G, CAT980H Large Wheel Loader
Control Mode：Load Sensing Swash Plate Control
Nominal Working Pressure：30 MPa (300 bar)
Max Instantaneous Peak Pressure：35 MPa (350 bar)
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：High-density cast iron housing, high-strength alloy steel core components, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Interchangeability：1:1 OEM original interchangeable, direct installation without modification
Packaging：Independent anti-rust packaging + export standard wooden case
Storage Environment：Dry indoor storage, moisture-proof, impact-proof, anti-corrosive gas

advantage

- Nitrided alloy steel friction pairs, superior wear resistance & extended service life
Plunger, cylinder block, valve plate and sliding shoe adopt high-strength alloy steel with deep nitriding and precision grinding. High hardness and fatigue resistance retain stable volumetric efficiency under heavy cyclic loading and reduce internal oil leakage.
- Load sensing control design, intelligent power matching and heat reduction
High-precision swash plate automatically adjusts displacement according to load demand. It only consumes necessary power during heavy material loading, lowering fuel consumption and reducing hydraulic system heat buildup.
- Reinforced heavy cast iron pump housing for harsh quarry working sites
Thick reinforced cast iron housing with stress relief annealing. It withstands frequent heavy impact and pressure spikes at quarry and mine sites, preventing pump deformation and cracking.
- Complete factory bench testing, consistent performance and low failure rate
Each pump undergoes hydraulic bench tests including pressure retention, flow detection and variable response inspection before delivery. Strict QC ensures performance meets OEM specifications.

FAQ 

Q1: What machines does 235-2716 plunger pump fit?
A1: This main hydraulic pump is designed for CAT 980G and 980H large wheel loaders. It cannot be used for 980K/980M or other loader models. Confirm machine serial number and part number before purchase.

Q2: Can this pump replace auxiliary pump or steering pump of 980H?
A2: No. 235-2716 is the main hydraulic pump for boom and bucket circuit, not the auxiliary or steering pump. They have different flow and installation parameters.

Q3: What symptoms will appear when this pump is worn out?
A3: Common faults: slow boom lifting speed, weak bucket digging force under heavy load, unstable system pressure, abnormal noise and vibration, or hydraulic overheating during continuous loading work.

Q4: Is on-site direct replacement available?
A4: Yes. All installation dimensions, oil ports and spline shaft comply with OEM standard. Bolt-on installation without cutting or welding to simplify maintenance work.

Q5: What preparations should be done before installing the new pump?
A5: Replace hydraulic oil and filter elements, fully flush oil tank and pipelines to remove metal particles. Inspect relief valve and hydraulic cylinders. Complete air bleeding after installation to avoid cavitation damage.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

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our warehouse

Pack and ship

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