353-0186 camshaft gear with dual cam sensor trigger for CAT engine spare part

353-0186 camshaft gear with dual cam sensor trigger for CAT engine spare part Featured Image
  • 353-0186 camshaft gear with dual cam sensor trigger for CAT engine spare part
  • 353-0186 camshaft gear with dual cam sensor trigger for CAT engine spare part
  • 353-0186 camshaft gear with dual cam sensor trigger for CAT engine spare part

Short Description:

Camshaft gear with dual signal trigger for Caterpillar electronic engine, transmits gear power and supplies two cam position signals to ECU to lock fuel injection and valve timing.

Product Detail

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description

This gear is mounted on the camshaft nose. It meshes with idler gears to transfer crankshaft power to the camshaft. It is equipped with two independent trigger rings for dual cam sensors. The ECU cross-checks two signal channels to confirm phase, which is critical for late electronic emission engines. Dual signal design reduces stall and derate risk caused by single sensor signal loss.

It is made of alloy cast steel. Power gear teeth are carburized and hardened for wear and impact resistance. The trigger teeth are precision machined to guarantee stable sensor waveform. Bore and dowel holes follow OEM specification for tight fit and anti-slip.

It fits Caterpillar C7.1 electronic engine, widely used on 320E, 323E, 330F excavators and 950K loaders with Tier4 emission system. This version is dedicated for dual cam sensor system and cannot be substituted by standard single-trigger cam gear.

Part Number: 353-0186
Name: Camshaft gear with dual cam sensor trigger
Applicable Models: Caterpillar C7.1 engine; 320E, 323E, 330F excavator, 950K loader
Height (in): 3.1
Length (in): 11.1
Material: Alloy cast steel, carburized hardened drive teeth
Function: Transmit gear power, provide dual cam position signal

Product Advantages

1. Cast steel base with carburized hardened teeth, withstands long cyclic load and resists pitting and breakage
2. Integrated dual trigger rings for cross-check, improves timing reliability and reduces false fault codes
3. Precise trigger tooth profile delivers stable signal edge for accurate ECU injection calculation, smooth power and controlled emission
4. Accurate bore and dowel hole for easy alignment, low timing drift after installation

FAQ 

Q: What faults are caused by damaged trigger teeth?
A: Distorted signal and unsynchronized dual channels, cam position fault code, hard start, intermittent derate or stall.

Q: Can 353-0186 be replaced with a standard single-trigger cam gear?
A: No. ECU requires two cam signals for validation. Single-trigger gear will trigger fault and prevent normal operation.

Q: What causes slip between gear and camshaft?
A: Sheared dowel pin, loose bolt or worn bore. Slip leads to sudden timing shift and risk of valve-piston contact.

Q: Can I replace only the gear and keep old sensors?
A: If sensor tips are worn or contaminated, signal reading will still fail. Inspect and clean sensor tips at the same time.

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