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207-06-61151 External harness for PC300-6 Komatsu PC350-6 PC400-6 PC450-6
Part number 207-06-61151 is the External Harness used on Komatsu PC300-6, PC350-6, PC400-6, PC450-6 excavators. This aftermarket replacement from TOPARTS is designed to fit in place of the original without cutting, splicing or rerouting.
Specifications
- Part Name: External Harness
- Part Number: 207-06-61151, 2070661151
- Condition: Aftermarket new
- Product Weight: 15 kg / 33.07 lbs
- Brand: TOPARTS
- Feature: Original connector layout; plug-and-play installation
Application
Komatsu PC300-6 PC350-6 PC400-6 PC450-6
How It Works on Your Machine
This is the backbone of the machine's electrical system. The External Harness runs along the frame and upper structure, distributing power from the batteries and fuse box and carrying signals between the cab, the engine compartment, the hydraulic system and the work lights.
Because it runs through the most exposed areas of the machine, the main harness takes more abuse than almost any other electrical part. Swinging, vibration, dust, washdowns and rodents all take their toll, which is why it is one of the most commonly replaced harnesses on older machines.
Komatsu machines use monitor-based diagnostics, and a harness fault frequently appears as an error code that clears and returns. Replacing worn wiring is a common fix for these recurring codes.
How to Tell It Is Time for a New One
Watch for these symptoms:
- Hydraulic functions slowing down or stopping because solenoids lose signal
- Starting problems traced to wiring rather than the battery or starter
- Monitor warnings that disappear when the machine is stopped
- Several unrelated circuits failing at once
- Blown fuses that keep recurring with no obvious cause
Intermittent faults like these are classic signs of ageing wiring, and they rarely improve on their own.
Tips for a Smooth Installation
- Work section by section, transferring clips and ties as you go, rather than removing the whole harness at once.
- Check every ground strap and clean its contact surface to bare metal.
- Add protective sleeving wherever the old harness showed signs of rubbing.
- Test lights, horn, solenoids and the monitor before refitting covers.
FAQ
Is this a genuine or aftermarket part?
Please see the Condition line in the specifications above. Every part is checked for fit and continuity before shipping.
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.
Can I replace only part of the harness?
For a reliable result we recommend replacing the complete harness, since the rest of the old wiring has aged under the same conditions.
Keeping the New Harness in Good Shape
Rodents are a common cause of harness damage on machines that sit for long periods. Keeping the cab and engine compartment clean of food waste, and using deterrents where machines are parked for a while, helps protect the new wiring.
Made to Last on the Job Site
TOPARTS harnesses are made to the original layout so that every connector reaches its component without strain. Protective conduit and tape guard the wires against abrasion, heat and oil in the engine bay and around the frame.
Payment & Shipping
- 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.
