OTTO-Engine Parts
312-5620-OTTO
312-5620-OTTO
312-5620-OTTO

OTTO 312-5620 Fuel Pump Solenoid Valve for Caterpillar CAT E320D 320D L Excavator C6.4 Engine Control Switch

Maximize your Caterpillar excavator’s engine performance with the OTTO 312-5620 Fuel Pump Solenoid Valve, a top-tier aftermarket replacement built for stable operation and perfect direct fitment. This high-precision control switch delivers consistent fuel system regulation for your heavy equipment, serving as a reliable and budget-friendly alternative to genuine OEM parts.

  • Order(MOQ)::

    1pc
  • Goods Stock::

    100
  • Payment::

    T/T, Western Union, L/C, Paypal, etc
  • Product Origin::

    China
  • Shipping Port::

    Huangpu, Guangzhou
  • Lead Time::

    In Stock
  • Part No: :

    312-5620
  • Model::

    E320D
  • Application::

    EXCAVATOR

OTTO 312-5620 Fuel Pump Solenoid Valve for Caterpillar CAT E320D 320D L Excavator C6.4 Engine Control Switch


The OTTO 312-5620 Fuel Pump Solenoid Valve is a specialized aftermarket control component tailored for Caterpillar excavator applications. As a critical engine control switch for theC6.4 Engine, it manages fuel delivery efficiently to ensure smooth engine startup, stable idle speed and normal power output, directly supporting the daily operational stability of the excavator. Manufactured to strict industry standards, it offers consistent performance, long-lasting durability and hassle-free replacement, making it a must-have part for maintaining excavator engine reliability.


Technical Specifications


Item
Specification
Product Name
Fuel Pump Solenoid Valve (Engine Control Switch)
Part Number
312-5620 (OTTO)
Cross Reference
CAT OEM 3125620
Compatible Brand
Caterpillar (CAT)
Machine Type
Excavator
Applicable Engine
C6.4 Engine
Product Type
Fuel Pump Solenoid Control Valve
Condition
Aftermarket Premium Replacement

Key Product Advantages




  • Perfect OEM Compatibility: Designed to match exact CAT OEM specifications for the C6.4 Engine and E320D series excavators, enabling direct drop-in installation without any modifications or adjustments. The mounting holes and electrical connectors align perfectly with original equipment, saving installation time and labor costs.
    Stable Fuel Control Performance: Built with high-quality internal coils and wear-resistant seals, this solenoid valve ensures precise and responsive fuel flow control, eliminating engine stalling, unstable idle and fuel supply failures. It restores the engine’s original power output and fuel efficiency effectively.
    Heavy-Duty Durability for Harsh Work Conditions: Constructed with rugged industrial-grade materials and heat-resistant components, it withstands high engine temperatures, vibration and harsh construction site environments. This durable design reduces frequent replacement needs and lowers long-term maintenance costs for excavators.

312-5620-OT


Applications


This OTTO 312-5620 Fuel Pump Solenoid Valve is specifically engineered for Caterpillar (CAT) excavators equipped with the C6.4 Engine, focusing on reliable fuel system control for medium-sized construction excavators used in excavation, earthmoving and site construction projects.
Compatible Models:
  • CAT E320D Excavator
  • CAT 320D L Excavator
  • Other CAT Excavators Equipped with C6.4 Engine

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.

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