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195-7336 1957336 Engine Wiring Harness for CAT Caterpillar 3126B Engine 332C 325C 953C 963C
Electrical faults can stop an excavator as surely as a mechanical failure. The 195-7336 1957336 Engine Wiring Harness replaces damaged or aged wiring on Caterpillar 325C, E325C, 322C, 332C, 953C, 963C excavators and returns the affected circuits to dependable operation.
It is used with the 3126B engine and is matched to that engine's sensor and connector layout.
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.
Caterpillar machines rely heavily on electronic engine and machine control, which makes healthy wiring essential for performance and fault-free operation.
Made to Last on the Job Site
The goal is simple: a harness that fits like the original and keeps working like it. Matching connectors, correct branch lengths and durable insulation mean stable performance and high reliability in daily heavy-duty use.
Common Symptoms of a Failing Harness
Watch for these symptoms:
- Engine stalling, misfiring or running roughly at idle
- 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
When diagnostics point to a circuit fault rather than a failed component, replacing the wiring is often the most cost-effective repair.
Installation Tips
- 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.
Maintenance Advice
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.
The Cost of Waiting
An excavator sitting idle waiting for parts costs money every hour. Having the correct harness on hand means the repair becomes a scheduled job instead of an emergency, and the machine is back at work as soon as installation is finished.
Part Information
- Part Name: Engine Wiring Harness
- Part Number: 195-7336, 1957336
- Engine: 3126B
- Condition: Aftermarket new
- Product Weight: 3.5 kg / 7.72 lbs
- Brand: TOPARTS
- Warranty: 3 months
- Feature: Strict quality control standards; stable performance and high reliability
Application
Caterpillar 325C, E325C, 322C
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.
