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20Y-06-22550 Engine Wiring Harness for Komatsu PC200-6 PC210-6 PC220-6 PC230-6
Keep your Komatsu PC200-6 PC210-6 working with the TOPARTS 20Y-06-22550 Engine Wiring Harness. It replaces the original harness one-for-one and is built for the vibration, heat and dirt that come with daily work on site.
What This Harness Does
The Engine Wiring Harness is the nerve center of the engine bay. It links the engine control module to the sensors, injectors and actuators that keep combustion on target, carrying every signal the ECM needs to read speed, temperature and pressure and respond in milliseconds.
Every start, every throttle change and every load the excavator takes on is managed through this harness. It routes power and data between the ECM and the engine-mounted components, so a single damaged wire here can show up as a problem anywhere in the engine's behaviour.
Komatsu excavators are known for long service lives, and many keep working well past the point where their original wiring has aged. A new harness is often the key to keeping an older Komatsu reliable.
Fitting Advice
- Label each connector on the old harness with masking tape before you unplug anything.
- Photograph the routing, clip positions and ground points from several angles.
- Clean and inspect the ECM connector pins; bent pins cause more faults than people expect.
- Keep the new harness clear of the exhaust manifold and turbocharger, and refit all heat shields.
- Clear stored fault codes after installation and run the engine to working temperature to confirm everything reads correctly.
FAQ
How do I know it will fit my machine?
Match the part number on your old harness, or send us your machine model and serial number and we will confirm before you order.
Is this harness plug-and-play?
Yes. It is built to the original layout with matching connectors, so it installs in place of the original without cutting or splicing.
Do I need special tools to install it?
Standard hand tools are usually enough. Labelling connectors and taking photos before removal makes the job much easier.
Construction and Quality
We check connector fit, wire continuity and overall layout before shipping, so the harness you receive is ready to install. The materials are chosen for the temperature range, vibration and contamination found on construction equipment.
Warning Signs to Watch For
Typical signs include:
- Gauges for engine temperature or oil pressure reading erratically
- Engine cranks but will not start, or starts only after several attempts
- Sudden loss of power or the engine entering a derated mode
- Problems that come and go when the engine heats up or when the machine vibrates
- Visible heat damage, cracked insulation or chafed wires near the engine block
When diagnostics point to a circuit fault rather than a failed component, replacing the wiring is often the most cost-effective repair.
Repair vs. Replacement
Splicing a damaged section can get a machine moving again, but each joint is a new point of failure. Old wire around the repair is usually just as aged as the part that broke, so the next fault is often not far away. A complete new harness resets the clock on the entire circuit.
Specs at a Glance
- Part Name: Engine Wiring Harness
- Part Number: 20Y-06-22550, 20Y0622550
- Condition: Aftermarket new
- Product Weight: 2 kg / 4.41 lbs
- Brand: TOPARTS
- Feature: Strict quality control standards; stable performance and high reliability
Applicable Models
Komatsu PC200-6 PC210-6 PC220-6 PC230-6
Order & Delivery
- Payment Method: PayPal, Stripe, Credit card, Visa, etc.
- Shipping Method: DHL, FedEx, UPS, TNT, USPS EMS, etc.
- Track Your Order: An email containing the tracking number with a link will be sent to you as soon as it ships.
Note: Please verify your part number and match our product pictures to your original item before ordering. If you have any questions, please feel free to contact us. Thanks.
