219-7461 2197461 Engine Wiring Harness for Caterpillar Engine C13 C11 Excavator 345C 345D
Part number 219-7461 2197461 is the Engine Wiring Harness used on Caterpillar 345C, 345D excavators. This aftermarket replacement from TOPARTS is designed to fit in place of the original without cutting, splicing or rerouting.
Engine reference: C13, C11. Please confirm your engine model along with the machine model when checking fitment.
Specs at a Glance
- Part Name: Engine Wiring Harness
- Part Number: 219-7461, 2197461
- Engine: C13, C11
- Condition: Aftermarket new
- Product Weight: 1.5 kg / 3.31 lbs
- Brand: TOPARTS
- Feature: Strict quality control standards; stable performance and high reliability
Compatible Models
Caterpillar Engine C13 C11 Excavator 345C 345D
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.
Mounted directly on the engine, this harness bundles the circuits that connect the electronic control unit with the parts doing the real work: sensors that measure, and actuators that respond. Clean, uninterrupted signals here are what allow the engine to run smoothly and efficiently.
On Cat equipment, a damaged harness often shows up as active diagnostic codes before any visible failure, so replacing the wiring can clear problems that look like sensor or ECM faults.
Warning Signs to Watch For
Typical signs include:
- 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
- Gauges for engine temperature or oil pressure reading erratically
- Visible heat damage, cracked insulation or chafed wires near the engine block
Intermittent faults like these are classic signs of ageing wiring, and they rarely improve on their own.
Installation Guide
- 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.
- 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.
Construction and Quality
Each harness is produced under strict quality control, with wire gauges, colours and connector types matched to the original specification. Terminals are crimped for secure contact, and the bundle is protected with sleeving where the original used it.
Keeping the New Harness in Good Shape
Once the new harness is fitted, a quick look during routine services goes a long way. Check for rubbing points, loose clamps and oil contamination, and keep the engine bay and battery area clean so that debris does not build up around the wiring.
Reducing Downtime
Dealer lead times for wiring harnesses can stretch to weeks. Ordering a replacement in advance, or as soon as faults begin to appear, keeps your project on schedule and avoids rental costs for a substitute machine.
Shipping and Payment
- 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.

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