New 1187590 Actuator Replacement suitable for Caterpillar G3508, G3512, G3516

  • New Actuator Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$7,892.21

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
1187590CTP
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Description for 1187590 Actuator

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This aftermarket Caterpillar 1187590 Actuator is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Actuator.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 1187590 Actuator

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Replacement Part Number(s): 118-7590
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 12.20 LBS | 5.53 KG
Dimensions: 9.06 x 9.06 x 9.06 (inches)
Condition: New

Exact Fit Guarantee for 1187590 Actuator

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Looking for a reliable replacement Caterpillar 1187590 Actuator ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Models G3508, G3512, G3516
Dimensions 9.06x9.06x9.06
Customer Reviews
  1. 100%
    Very thorough ! Confirmed order and great communications.
  2. 80%
    Above and Beyond
    Staff took care of issue that was nit created by them. Package was lost by UPS. Propel sent me another part Next Day Air to correct it.
  3. 100%
    A Delay Handled the Right Way
    Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.

    Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.

    Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.

    ? Jimmy Spong
    Hartco Mobile Welding

    P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
  4. 100%
    Excellent and prompt response.
    Propel parts team helped me greatly regarding a special request and I always get prompt response.
    They’re fantastic!
  5. 100%
    Awesome service prices and quality parts
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Frequently Asked Questions

Product

What is the function of the 1187590 actuator in Caterpillar G3500 series engines?

The 1187590 actuator plays a critical role in controlling fuel delivery and engine speed in Caterpillar G3508, G3512, and G3516 engines. It ensures precise throttle response and stable engine operation, helping maintain optimal performance and efficiency across demanding applications.

Is the 1187590 actuator compatible with Caterpillar G3508, G3512, and G3516 engines?

Yes, this actuator replacement is specifically designed for use with Caterpillar G3508, G3512, and G3516 engines. However, compatibility may vary depending on your equipment configuration. Always check your manual or reach out to Propel Parts for help verifying fitment to ensure proper application.

Does this 1187590 actuator replacement meet OEM standards?

Yes, this actuator is engineered to meet OEM specifications, ensuring reliable performance and durability. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to maintain proper engine control and longevity.

How do I install the 1187590 actuator on my engine?

Follow these general steps for installation:

  • Turn off the engine and disconnect the power supply
  • Allow the engine to cool completely
  • Remove the faulty actuator carefully
  • Inspect and clean the mounting area
  • Install the new actuator and secure it according to specifications
  • Reconnect electrical connections and test for proper operation

For best results, refer to your equipment service manual for detailed instructions.

What are the common signs of a failing actuator in Caterpillar engines?

Typical symptoms of a faulty actuator include:

  • Irregular engine speed or poor throttle response
  • Engine stalling or difficulty maintaining load
  • Warning alarms or fault codes
  • Reduced overall engine performance

Early detection and replacement can help prevent costly downtime.

How often should the actuator be replaced?

There is no fixed replacement interval for actuators. Their lifespan depends on operating conditions, maintenance practices, and workload. Regular inspections and monitoring engine performance can help determine when replacement is necessary.

Why is it important to use a high-quality actuator replacement?

Using a reliable actuator ensures accurate fuel control and stable engine performance. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to ensure long-term reliability and avoid operational issues.

Can I use a premium aftermarket 1187590 actuator instead of a genuine part?

Yes, premium aftermarket options are a great alternative when they meet or exceed OEM expectations. We offer high-quality aftermarket actuator replacements that deliver dependable performance, making them a cost-effective and reliable choice for maintaining your equipment.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 1187590 Actuator is compatible with the following models:
G3508, G3512, G3516 & more...

Shipping

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.

We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.

Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Easy Returns

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Warranty

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.