New 1106991 Head Gasket Replacement suitable for Caterpillar Equipment

$20.84
In Stock • Ships Today • Order By 3pm ET
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Description for 1106991 Cyl Head Gasket

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This aftermarket Caterpillar 1106991 Cyl Head Gasket 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 Cyl Head Gasket.
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 1106991 Cyl Head Gasket

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Replacement Part Number(s): 110-6991
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: 0.68 LBS | 0.31 KG
Dimensions: 15.75 x 11.81 x 0.08 (inches)
Condition: New

Exact Fit Guarantee for 1106991 Cyl Head Gasket

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Looking for a reliable replacement Caterpillar 1106991 Cyl Head Gasket ? 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.
Reviews

Customer Reviews

★★★★★

Excellent service and very very good service

★★★★★

Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again

★★★★★

Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.

★★★★★

Quick and efficient.
Great products and a great team to deal with. We had a small issue with a missing part and the Customer Services Team dealt with it quickly and efficiently and in a way which left me, the customer, feeling entirely satisfied. Would highly recommend.

★★★★★

perfect service

★★★★★

Excellent Customer service

★★★★★

100% recommend it is a good parts by par for five years and everything is good

★★★★★

Amazing Help.
I don't know who I spoke with, but they were helpful. We will be buying those parts shortly.

★★★★★

Have been buying parts from them for years, and they have always delivered, both with parts and customer service.

★★★★★

Great service affordable parts

Product Questions

Frequently Asked Questions

What is the Caterpillar 1106991 head gasket used for?

The Caterpillar 1106991 head gasket is a high-quality aftermarket replacement designed to help seal the cylinder head and engine block in heavy equipment engines. It is manufactured to meet or exceed OEM specifications for dependable sealing performance and durability.

What are the benefits of the 1106991 head gasket?

  • Helps create a reliable seal between engine components
  • Supports proper compression and engine performance
  • Manufactured from durable gasket materials
  • Designed to meet or exceed OEM specifications
  • Helps reduce the risk of coolant and oil leaks

Is the 1106991 head gasket compatible with multiple Caterpillar machines?

Yes, this head gasket may fit various Caterpillar engines and machines including 3508, 3512, 3516, 777, 785, 793, and additional applications depending on engine configuration. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.

Why is replacing a damaged head gasket important?

Replacing a damaged head gasket helps maintain proper engine compression, prevent fluid leaks, and protect critical engine components from overheating or internal damage.

Does the 1106991 head gasket meet OEM standards?

Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, sealing performance, and long-lasting engine reliability.

Can a failing head gasket affect engine performance?

Yes. A failing head gasket may lead to coolant leaks, oil contamination, compression loss, overheating, and reduced engine efficiency.

Are related Caterpillar engine sealing components available from Propel Parts?

Yes. Propel Parts offers a variety of engine gaskets and sealing components for Caterpillar equipment. You can also check the Caterpillar Equipment Seal O-Ring 6D7146 for another related sealing option.

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

This 1106991 Cyl Head Gasket is compatible with the following models:
3508, 3512, 3516, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 793B, 793C, 793D, 797, 797B, 854 & more...

Shipping | Returns

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.

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