OTTO 118-9949 Oil Cooler Radiator for Caterpillar 312B Excavator Hydraulic Oil Cooler Heavy Equipment Cooling System Component

OTTO 118-9949 Oil Cooler Radiator for Caterpillar 312B Excavator Hydraulic Oil Cooler Heavy Equipment Cooling System Component

The Oil Cooler Radiator 118-9949 is a critical aftermarket part for Caterpillar 312B excavators. This essential component plays a key role in the hydraulic cooling system, effectively dissipating heat from hydraulic oil to prevent overheating and protect core hydraulic parts. Engineered to meet industry standards, this oil cooler ensures stable cooling performance, reliability, and long service life, making it vital for maintaining the excavator’s productivity.

Technical Specifications

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Key Product Advantages

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Hassle-Free OEM Fitment: Precision-engineered to match Caterpillar 312B’s original mounting positions and oil port sizes, enabling "drop-in" installation without any modifications, saving time and labor costs.

Superior Cooling Efficiency: Adopts a high-density copper core and optimized fin design, accelerating heat dissipation to keep hydraulic oil at the optimal operating temperature, avoiding equipment downtime caused by overheating.

Rust-Resistant Durability: Coated with a high-temperature resistant, anti-rust layer, the aluminum alloy housing and copper core effectively resist corrosion, dust, and vibration, ensuring a longer service life than ordinary aftermarket coolers.

Applications

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This oil cooler radiator is specifically designed for the Caterpillar 312B Excavator, which is widely used for medium-scale excavation, earthmoving, and construction projects.

About Otto

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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

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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

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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.