Gedetailleerde informatie

Productnaam:	134-6553 Controller-ECU voor 120H 140H motorgrader	Materiaal:	staal
Plaats van herkomst:	Guangdong, China	MOQ:	1
OEM:	Steun
Markeren:	134-6553 ECU Controller for 120H Motor Grader , 140H Motor Grader ECU Controller , Heavy Equipment ECU Controller with Warranty

Productomschrijving

Controller ECU for 120H/140H Motor Grader

High-quality replacement Controller ECU (Part Number: 134-6553) designed for Caterpillar 120H and 140H Motor Graders. This used component offers reliable performance and is available from rich stock for quick delivery.

Product Specifications

Product Name	Controller ECU
Part Number	134-6553
Brand Name	JIAJUE
Compatible Models	120H/140H
Condition	Used
Availability	Rich Stock
Approximate Weight	2.5KG
Size (per unit)	20cm x 18cm x 15cm
Delivery Time	Usually delivered within 1-3 days after payment

Product Images

Frequently Asked Questions

Installation Time for ECM on Machine

Physical Installation: 15-30 minutes. The unit is typically secured by 4 bolts on the cool side of the engine.
Programming & Testing: 30-60 minutes.

Pro Tip: If the ECM is pre-programmed by us based on your machine's serial number, it is essentially "Plug & Play." If not, you will need a Cat ET (Electronic Technician) tool to flash the software, which takes additional time. We recommend professional installation to ensure correct parameter synchronization.

Determining ECM Fault and Replacement Need

The ET diagnostic tool cannot communicate with the ECM, or it displays a "Module Not Responding" error. This is a critical sign of internal hardware failure.
Active fault codes related to internal memory (EEPROM) or voltage reference issues that persist after checking the wiring harness often indicate ECM failure.
Sudden engine stalling, severe power loss (Limp Mode), or persistent misfiring (missing injector driver signals) after sensors and harnesses have been ruled out.
Visible signs of overheating (burning smell), water ingress, corrosion, or broken pins on the connector headers.

Step-by-Step Testing Guide

Pro-Tip: HEUI (Hydraulic Electronic Unit Injection) systems are extremely sensitive to contamination. A single speck of dust can cause premature failure.

Prepare: Ensure the excavator is turned off and safely secured. Disconnect the battery to avoid electrical accidents.
Inspect: Check the ECU for physical damage or loose connections.
Connect Diagnostic Tool: Use a diagnostic tool recommended by the excavator's manufacturer. Connect it to the ECU according to the tool's instructions.
Read Codes: Use the diagnostic tool to read any error codes (DTCs) stored in the ECU. These codes indicate potential problems with the ECU or connected systems.
Check Live Data: View live data parameters such as sensor readings and system voltages. Ensure they are within normal ranges.
Functional Tests: If possible, perform tests to activate components or simulate sensor inputs. Verify that the ECU responds correctly without delays or errors.
Reset (if needed): Reset the ECU if recommended by the manufacturer, especially after repairs or replacements.
Document: Keep a record of all tests, codes, and results for future reference.

Quick Checklist for Buyers: Before replacing the ECM, always check the fuses, main relays, and ground connections. In many cases, a faulty ground wire or low battery voltage mimics an ECM failure.

Business Information

Payment Methods: T/T, L/C, PayPal, etc.
Stock Availability: Rich stock available.
Order Shipping: When the goods ship, we will share the tracking number. For sea or air freight, we can provide the bill of lading.

Company & Facilities

Packaging & Shipping

label:

Plaats van herkomst:	China
Merknaam:	Jiajue
Modelnummer:	120H 140H

Min. bestelaantal:	1 st
Prijs:	$800/pc
Verpakking Details:	134-6553 Controller ECU voor 120H 140H Motor Grader is verpakt in standaard exportverpakking volgens
Levertijd:	1-5 werkdagen
Betalingscondities:	L/C, D/A, D/P, T/T, Western Union
Levering vermogen:	Guangdong, China

134-6553 Controller ECU for 120H 140H Motor Grader

134-6553 ECU Controller for 120H Motor Grader

140H Motor Grader ECU Controller

Heavy Equipment ECU Controller with Warranty

v geribbelde riem,

motorventilatorriem,

rubberaandrijvingsriemen

362-3189 3623189 Controller for CS-54B Compactor

10R-4090 Controller ECU 10R4090 for C-12 Engine

126-6648 Controller ECU 1266648 voor 950F-lader

VOE14390248 Controller ECU 14390248 voor EW160B EW180B graafmachine

1138-0500 11380500 ECU Controller voor graafmachine EC55D

YN22E00492F7 CPU-controller voor SK200-8 graafmachine

126-6648 1266648 Controller ECU voor 950F

160-2595 1602595 Controller voor D250E Truck