If you own or maintain a Kobelco excavator, you know that hydraulic performance depends on precise electronic control. At the heart of that control system are solenoid valves – small but critical components that regulate pilot pressure, hydraulic flow, and actuator response.
Today we are focusing on four key Kobelco solenoid valve part numbers: YN35V00004F1, YN35V00004F2, YN35V00005F1, and YN35V00005F2. These valves are commonly used in Kobelco excavator hydraulic systems, and finding a reliable, cost-effective replacement is essential for minimizing downtime.
In this comprehensive guide, we’ll cover:
What these solenoid valves do
Product features and specifications
Buying points and unique characteristics
Whether they can replace original Kobelco parts
Safety considerations
Logistics and shipping options
Installation tips and FAQs
Solenoid valves are electromechanical devices that convert electrical signals from the machine's ECU/controller into hydraulic pilot pressure. They control:
Swing brake release – allowing the upper structure to rotate
Travel motor shifting – high/low speed selection
Attachment flow control – for breakers, shears, or grapples
Main pump regulation – matching flow to demand
Safety lock functions – preventing unintended movements
When a solenoid valve fails, you may experience:
Slow or no swing even with full engine RPM
Inability to change travel speed (stuck in one gear)
Attachment not working or responding erratically
Reduced hydraulic power or jerky motions
Error codes related to solenoid circuits
Given the critical role these valves play, replacing a faulty unit with a high-quality aftermarket equivalent is a practical and cost-effective solution.
This guide covers the following Kobelco original part numbers:
| Part Number | Description |
|---|---|
| YN35V00004F1 | Solenoid valve (often used for swing/travel control) |
| YN35V00004F2 | Solenoid valve (similar to F1 with slight coil variation) |
| YN35V00005F1 | Solenoid valve (used for pump regulation / attachment flow) |
| YN35V00005F2 | Solenoid valve (variant with different connector orientation) |
These four part numbers cover the most common solenoid valve applications in Kobelco excavators.
These solenoid valves are widely used across many Kobelco excavator models, including but not limited to:
Kobelco SK200 series (SK200-8, SK200-10)
Kobelco SK210 series
Kobelco SK230 series
Kobelco SK250 series
Kobelco SK260 series
Kobelco SK330 series
Kobelco SK350 series
Always check your machine’s parts manual or the original valve marking to confirm which part number you need. While F1 and F2 variants are physically similar, they may have different coil resistance, connector types, or pressure ratings.
Material: Iron (housing and armature) + Rubber (seals and O-rings) + Copper (coil windings)
Iron housing: Provides magnetic flux concentration, structural strength, and corrosion resistance.
Copper coil: Precision wound for consistent electromagnetic force and heat dissipation.
Rubber seals: Prevent hydraulic oil leakage and keep contaminants out.
Key advantages of this material combination:
| Feature | Benefit |
|---|---|
| High magnetic efficiency | Reliable spool actuation even with voltage fluctuations |
| Heat-resistant coil | Withstands continuous duty in hot engine/hydraulic bays |
| Corrosion-resistant housing | Long life in wet or salty environments |
| Precision-machined spool | Smooth, chatter-free valve operation |
| High-quality O-rings | Leak-proof sealing at operating pressures (up to 350 bar) |
These solenoid valves are designed to match the original Kobelco specifications. They feature:
Same mounting bolt pattern
Same hydraulic port sizes and thread types
Same electrical connector (Deutsch or AMP style, depending on variant)
Same coil resistance and operating voltage (typically 12V or 24V DC)
You can install them exactly where the old valve was – no adapters, no rewiring.
All COGENG solenoid valves are produced in an ISO9001-certified facility. This ensures:
Consistent coil winding tension
Accurate spool clearance tolerances
100% pressure and leak testing before shipment
Full traceability of materials
Genuine Kobelco solenoid valves can be expensive and may have extended lead times. Our aftermarket equivalents offer significant cost savings – typically 40–60% less – while delivering the same performance and durability.
Because these four part numbers cover a broad range of applications, you can stock just a few variants to service multiple Kobelco models – simplifying your spare parts inventory.
We understand that you may want to test quality and fitment before committing to bulk purchases. Trial orders as small as 1 piece are welcome.
Yes – absolutely and safely.
Here’s why:
Dimensional identity: The valve body, spool, and mounting flange are machined to the same dimensions as the original.
Electrical identity: Coil resistance, inductance, and pull-in voltage are matched to OEM specifications.
Hydraulic identity: Flow capacity, pressure rating, and response time are validated against OEM data.
Important distinction: These are aftermarket replacement parts, not genuine Kobelco parts. They are manufactured by COGENG to meet or exceed OEM performance standards. They are not "universal" or "one-size-fits-all" – they are dedicated replacements for the specific part numbers listed.
Safety is non-negotiable when dealing with hydraulic systems. Here’s how we ensure safety:
The iron housing is non-sparking and suitable for use around combustible materials.
O-rings and seals are made of high-grade NBR or FKM – resistant to hydraulic fluid, diesel, and high temperatures.
Coils are insulated to withstand voltage spikes common in excavator electrical systems.
Connectors are polarized to prevent reverse polarity installation.
Each coil undergoes hi-pot testing to ensure no shorts to ground.
A faulty solenoid can cause sudden hydraulic release or unintended movement. Our valves are 100% tested for spool response and leak-tightness to prevent such failures.
Consistent electrical-to-hydraulic conversion ensures predictable machine behavior – reducing operator error risk.
Every valve is tested at rated pressure and voltage before packing.
We provide a 12-month warranty against manufacturing defects.
In short: Yes, these solenoid valves are safe to use. They are built to the same standards as the original Kobelco parts.
Packing: PP bag inside, carton box outside
Inner PP bag: Protects the valve from dust, moisture, and static discharge.
Outer carton box: Prevents damage from impact or crushing during transport.
Each valve is individually packed to ensure it arrives in perfect working condition.
Supply capacity: 500 PCS (combined stock for all four part numbers)
MOQ: Acceptable trial order
Whether you need a single valve for an emergency repair or 50 pieces for your parts distribution business, we can accommodate your order.
We accept a variety of payment methods to suit international customers:
Western Union – fast for small-value orders
L/C (Letter of Credit) – secure for large commercial shipments
T/T (Telegraphic Transfer) – the most common and cost-effective
MoneyGram – convenient for urgent payments
D/A (Documents against Acceptance)
D/P (Documents against Payment)
Please coordinate with our sales team for the best option based on your order size and location.
We offer multiple shipping solutions:
| Shipping Method | Best For | Transit Time |
|---|---|---|
| Express (DHL, FedEx, UPS, TNT) | Trial orders, urgent repairs | 3–7 business days |
| Air Freight | Medium-sized orders | 7–10 business days |
| Sea Freight | Bulk orders (LCL/FCL) | 20–40 days (most economical) |
All shipments are fully trackable. For express courier, you’ll receive tracking information within 24 hours of dispatch.
Place of Origin: Guangdong, China
Guangdong is a global hub for precision hydraulic component manufacturing. With advanced CNC machining, coil winding technology, and stringent quality control, COGENG produces solenoid valves that meet international standards at competitive prices.
Brand name: COGENG
COGENG is a recognized brand in the construction equipment aftermarket. Our customers include workshops, rental fleets, mining operations, and parts distributors in over 40 countries. Why choose COGENG?
Factory-direct pricing – no middleman markups
Fast response – quotes and technical support within hours
Large inventory – most items ship within 48 hours
12-month warranty – against manufacturing defects
Expert support – help with part identification and technical questions
Follow these steps:
Locate the faulty valve – usually on the main control valve body or pilot filter block.
Read the part number – stamped on the valve body or coil (e.g., YN35V00004F1).
Check the connector type – 2-pin Deutsch or AMP? The F1 and F2 variants may differ.
Measure coil resistance – if in doubt, compare with the new valve.
Confirm voltage – 12V or 24V (most Kobelco excavators use 24V).
If your original part number matches any of the four listed, this is the correct replacement.
Caution: Installation should be performed by a qualified hydraulic technician. The following is general guidance:
Relieve hydraulic pressure – turn off engine, operate controls to release stored pressure.
Clean the area – prevent dirt from entering open ports.
Disconnect electrical connector – carefully release the locking tab.
Remove the valve – use the correct wrench size to avoid damaging hex flats.
Inspect O-rings – replace with new ones supplied if included.
Install new valve – torque to specification (do not over-tighten).
Reconnect electrical – ensure connector clicks into place.
Start engine and test – check for leaks and verify correct function (swing, travel, attachment).
No – they are high-quality aftermarket replacements manufactured by COGENG to OEM specifications.
F1 and F2 may differ in coil resistance, connector style, or pressure setting. Always match your original part number exactly.
Yes, if your original part number is one of the four listed. SK200-8 commonly uses these valves.
Yes – trial orders are accepted.
Absolutely. They are pressure-tested, leak-tested, and electrically tested before shipment.
Typically 3–7 business days to most major destinations.
12 months against manufacturing defects.
The Kobelco solenoid valve replacements – covering YN35V00004F1, YN35V00004F2, YN35V00005F1, and YN35V00005F2 – offer everything you need:
✅ Direct fit – no modifications
✅ Safe – tested to ISO9001 standards
✅ Durable – iron, copper, and rubber construction
✅ Affordable – substantial savings over OEM
✅ Available – in stock and ready to ship
✅ Flexible – trial orders and global shipping
Don’t let a faulty solenoid valve idle your Kobelco excavator. Replace it with COGENG and get back to work with confidence.
Call to Action:
🔧 Ready to order your Kobelco solenoid valve? Contact our sales team today for a quick quote.
✅ Mention part number YN35V00004F1 or YN35V00005F1 for priority service.
✈️ Worldwide shipping via DHL, FedEx, UPS, or sea freight – we deliver to your door.
