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调节器副图1
调节器副图
调节器
调节器副图1
调节器副图
调节器

708-1T-00470 708-1W-00690 Hydraulic Fan Pump Regulator for D155-5 D375-5

In heavy-duty crawler bulldozers like the D155-5 and D375-5, proper thermal management is the key to preventing costly downtime. The cooling fan pump regulator is the critical component that dictates how fast the hydraulic fan spins based on real-time engine temperatures. When this regulator becomes worn, stuck, or bypassed internally, operators experience erratic fan speeds, constant overheating warnings, or a complete loss of cooling capacity under massive dozing loads. Manufactured directly in our specialized hydraulic facilities, this premium replacement regulator guarantees factory-level thermal calibration, instantly restoring your bulldozer's cooling efficiency and extending the life of your diesel engine.
  • Extreme-Heat Forged Construction: Machined from specialized, high-density alloy steel designed to withstand continuous thermal and pressure cycles within the extreme environments of a heavy bulldozer's engine bay.
  • Micron-Level Precision Spools: CNC-machined internal spools provide zero-leakage control and accurate adjustment of the fan pump's swashplate angle, ensuring the radiator receives optimal airflow at all times.
  • Advanced Anti-Galling Treatment: Deeply heat-treated internal control components resist scoring, sticking, and thermal fatigue caused by continuous high-temperature hydraulic oil circulation during heavy rock-ripping operations.
  • Optimized Thermal Response: Accurately translates engine temperature and cooling demand signals to instantly adjust fan pump displacement, reducing parasitic engine load and optimizing overall fuel economy.
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Structured Cross-Border Communication
We eliminate the complexities of international B2B procurement. Our dedicated export team utilizes highly structured communication strategies to swiftly and clearly resolve any pricing configurations and customized cross-border shipping inquiries you may have.
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Strict QC & Flow Testing
Every single hydraulic unit undergoes rigorous dynamic high-pressure testing and thermal cycling on computerized test benches in our dust-free facility. We guarantee precise proportional response before any product is boxed.
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Heavy-Duty Export Logistics
High-value machined components require absolute protection against moisture and impact. We apply specialized anti-rust treatments, utilize vacuum sealing, and secure your bulk orders in reinforced, fumigation-free wooden crates for safe global transit via LCL sea freight or air express.
Brand
YIKAN
Origin
Guangdong, China
Product Name
Fan motor
Model
D155 Regulator
Part number
708-1T-00470
Application field
Bulldozer
Warranty/Spare Parts
Six months
Quality
High guarantee
Status
100% new
Minimum order quantity
1 piece
PRODUCTS

PRODUCTS

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High-Torque Hydraulic Main Pump Shaft (Part No. 708-2G-12111) for Komatsu PC300-7 & PC360-7 (HPV140 Pump)

Premium heavy-duty hydraulic main pump front drive shaft (splined input shaft) engineered for HPV140 and HPV132 series variable displacement axial piston pumps. Direct replacement for part number 708-2G-12111 (interchangeable with 708-2G-12110), built as the primary power input interface to transfer continuous heavy engine torque directly to the rotating cylinder block in 30–36 ton class excavators.
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Heavy-Duty Hydraulic Main Pump Swash Plate / Cradle (Part No. 708-2H-04690 / 708-2H-04680) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump swash plate (swash plate cradle / cam plate assembly) engineered for HPV145 series swash plate axial piston pumps (front and rear pump compatible). Direct replacement for part number 708-2H-04690, built to sustain continuous multi-ton axial thrust loads from all 9 piston shoes while delivering seamless angular deflection for variable displacement control in 40–45 ton class heavy excavators.
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Heavy-Duty Hydraulic Pump Cylinder Block (Part No. 708-2H-04620) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump cylinder block (pump barrel / rotary cylinder assembly) engineered for HPV145 series swash plate axial piston pumps. Direct replacement for part number 708-2H-04620, built with centrifugally cast bimetallic copper alloy bushings to guide 9 reciprocating high-pressure pistons and maintain a hydrodynamic seal against the valve plate in 40–45 ton class heavy excavators.
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High-Precision Hydraulic Main Pump Valve Plate (Part No. 708-2H-04750 / 708-2H-04760) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump servo slider block (variable displacement slide block) engineered for HPV145 series axial piston pumps. Direct replacement for part number 708-2H-34150 (7082H34150), built to transmit heavy cyclic servo piston forces to the swash plate tilt pin for precise, rapid displacement regulation in 40–45 ton class heavy excavators.
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News

News

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Main Control Valve Failure Symptoms in Excavators

7/ September

Main Control Valve Failure Symptoms in Excavators

Read excavator valve symptoms, pressure checks, spool wear signs, and pilot signals to decide whether repair, remanufacture, or replacement will cut downtime fast.
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Compare new vs remanufactured excavator pumps by downtime, fitment, test data, warranty, and restart risk so buyers choose the lower-risk option fast.
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What We Do

Services we Offer

No matter what your hydraulic maintenance needs may be, we’re here to help. Contact us today to learn more about our
services and how we can assist you with all of your needs.
Processing

Processing

With years of experience in the processing industry, we offer full-chain customized processing services with our mature production system and stringent quality control standards! Whether you are conducting small-batch trial production of new products, large-scale OEM manufacturing, or customized processing of personalized products, you can enjoy a one-stop service from demand matching to finished product delivery, helping your products to be launched efficiently and quickly to the market. We boast an experienced production team and a modern processing workshop, proficient in various OEM processes including machining, stamping, injection molding, and assembly. We can adapt to the needs of various materials such as metal, plastic, and rubber, perfectly matching diverse industry scenarios including electronics, automotive parts, household goods, hardware tools, and medical devices. From product drawing analysis and processing technology planning to process execution, precision control, and finished product inspection, every step strictly adheres to industry standards, ensuring that the processed products meet precision standards, have stable quality, and strong consistency, effectively reducing your production and operating costs.
Casting

Casting

With years of experience in the casting industry, we provide core casting solutions for your product manufacturing with our exquisite craftsmanship and rigorous quality control! Whether you are developing new products through casting, mass production with casting support, or developing customized castings, you can enjoy exclusive casting services throughout the entire process, helping your products seamlessly transition from design to mass production delivery. We boast a team of experienced casting engineers and a modern casting workshop, proficient in various casting processes such as sand casting, die casting, and precision casting. Our capabilities adapt to diverse material requirements, including cast iron, cast aluminum, cast copper, and stainless steel, perfectly matching the needs of multiple industries such as machinery manufacturing, automotive parts, construction machinery, hardware tools, and medical devices. From product drawing analysis and casting process optimization to mold making, casting, subsequent processing, and quality inspection, every step strictly adheres to international casting standards, ensuring high precision, sufficient strength, and stable performance of castings, effectively enhancing the core competitiveness of our products. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. Professional mold making services – choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market.
Abrasive tools

Abrasive tools

With years of experience specializing in abrasive molds, we leverage our expertise to ensure the smooth mass production of your products! Whether you’re developing new products, adapting them for mass production, or upgrading existing molds, you can enjoy a full-process customized abrasive mold development service. We have a team of experienced engineers who strictly adhere to industry standards at every stage, from product drawing analysis and mold structure optimization to mold processing and trial molding. We utilize advanced production equipment and high-quality raw materials to ensure high precision, long lifespan, and stable molding, effectively reducing your production losses. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. For professional mold making, choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market!
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We have our own R&D and production team that supports small batch customization and sample processing related to hydraulic maintenance.

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