OTTO 4HK1 Fuel Injection Pump High Pressure Pump for Excavator Diesel Engine Fuel System Heavy Machinery Fuel Pump Component

OTTO 4HK1 Fuel Injection Pump High Pressure Pump for Excavator Diesel Engine Fuel System Heavy Machinery Fuel Pump Component

The OTTO 4HK1 High Pressure Fuel Injection Pump is a dedicated aftermarket component tailored for excavator diesel engines, serving as a core part of the fuel system. As an essential heavy machinery fuel pump component, it delivers stable high-pressure fuel to the engine cylinders, ensuring efficient combustion, optimal power output, and smooth engine operation. Engineered to meet industry standards, this fuel injection pump guarantees reliable performance, durability, and seamless compatibility, making it vital for maintaining excavator productivity.

Technical Specifications

---

Key Product Advantages

---

OEM-Grade Compatibility: Precisely engineered to match the exact specifications of 4HK1 diesel engine excavators, ensuring a seamless "drop-in" installation. The mounting interface and fuel delivery ports align perfectly with the engine fuel system, eliminating the need for modifications or adjustments.

Stable High-Pressure Fuel Delivery: Features precision-machined internal components that maintain consistent high fuel pressure, ensuring uniform fuel injection into each cylinder. This optimizes engine combustion efficiency, boosts power output, and reduces fuel consumption.

Heavy-Duty Durability: Constructed with high-strength cast iron and wear-resistant alloy steel, capable of withstanding high fuel pressure and harsh construction site conditions (vibration, dust, temperature changes). Minimizes internal wear and extends service life.

Cost-Effective Aftermarket Solution: Delivers OEM-level fuel system performance at a more affordable price, restoring the excavator’s fuel supply stability without the high cost of original parts. Reduces long-term maintenance and replacement costs for heavy machinery.

Applications

---

About Otto

---

Guangzhou Otto Engineering Machinery Equipment Co.,Ltd, is a leading manufacturer and distributor of earthmoving parts and equipment in Guangzhou, China. It consists of 3 sister companies, serving many well-known distributors at home and abroad. With more than 20 years of production and distribution experience, OTTO has cultivated an experienced engineer team and a professional sales team, which can ensure the highest service with the highest quality, competitive price and prompt delivery. At the same time, it also supplies parts to the Chinese market, and many Chinese trading companies order from our company. 

Come with us, the best service, the best price, the best supplier you can enjoy !

Our Advantages

---

1.TECHNICAL SERVICE
We provide modification technology service, the product has been tested modifed, the engine can be directly installed and used.
2.CERTIFICATE
With Export certificate License.Double confirmation before shipping, if we sent the wroncparts we will send corect one.
3.SERVICE TEAM
With professional after-sale team, will help you to trace the goods. And our engineers will assist with any installation issues.
4.TECHNICAL SERVICE
Free Sample is acceptable.We serves manywell-known Hitachi Komatsu Caterpillar Kobelco in your country.

Access our comprehensive Excavator Parts Book covering 50,000+ validated OEM references for Komatsu, CAT, Hitachi, Volvo, and Doosan machinery – cross-search by part number (e.g., Komatsu 111-10-11310), machine model (CAT 320D/EX200-5), or component type (hydraulic pumps, track links, engine rebuild kits) with real-time 3D diagram support. Engineered for zero-mismatch fitment across critical assemblies including Isuzu 6BG1T/Cummins QSB6.7 power systems, ISO-certified undercarriages, and Komatsu HMB-series hydraulic valves, all backed by 24/7 technical interpretation and downloadable PDF catalogs with MOQ/pricing.

At OTTO, we specialize in excavator machinery parts with a global clientele. Our superior products have garnered acclaim worldwide for their quality, durability, and precision engineering. Customers praise our extensive range of parts, from travel reduction gearboxes to hydraulic components, ensuring optimal performance. With a commitment to excellence, we offer top-notch warranties, secure shipping options, and efficient delivery times. Join our satisfied customers worldwide who rely on OTTO for top-tier excavator parts and exceptional service.

FAQ

---

Q1:What can you buy from us?
A:We are professional dealer in excavator parts, such as desel engine assy,hydraulic pump, hydraulic control valvetravel
motor,diesel fuel system,gearbox parts, swing gearbox motor parts, electrical parts, engine parts, used
excavator,etc.

Q2:How long is the warranted time?
A:For natural broken,Warranty 3-12 months any quality problem will offer support freely.

Q3:What's the shipping way you can offer?
A:(1) Big order: By sea or by air.(It can reduce the costs).

(2) Small order:DHL,TNT,UPS,FEDEX,EMS,ARAMEX.

Q4:What's the terms of the transaction?
A:EXW,FCA,FAS,FOB, C&F,CIF,CPT,CIP,DAF,DES,DDP.
 
Q5:How about the lead time?
A:(1) ln stock: 1-3 days.Always in 24 hours.
(2) Out of stock: lt's according to your quantity, and we have cooperated with factory,We will let you know when we quote.