New 1243686 Oil Cooler & Lines Gasket Kit Replacement suitable for Caterpillar 3116 Engine Serial Nos. 98Z

  • New Oil Cooler & Lines Gasket Kit Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$10.85

4.7

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In Stock | Ships Out Today | Order By 3pm ET
SKU
1243686CTP
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Description for 1243686 Engine Gasket Kit

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This aftermarket Caterpillar 1243686 Engine Gasket Kit 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 Engine Gasket Kit.
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 1243686 Engine Gasket Kit

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Replacement Part Number(s): 124-3686
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: 0.78 LBS | 0.35 KG
Dimensions: 14.96 x 12.20 x 2.76 (inches)
Condition: New

Exact Fit Guarantee for 1243686 Engine Gasket Kit

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Looking for a reliable replacement Caterpillar 1243686 Engine Gasket Kit ? 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 3116, 98Z & more
Dimensions 14.96x12.20x2.76
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Frequently Asked Questions

Product

What does the Caterpillar 3116 Oil Cooler Lines Gasket Kit 1243686 include?

The 1243686 is a gasket kit for the oil cooler lines on the Caterpillar 3116 engine with serial number prefix 98Z. It provides the sealing components required to properly reseal the oil cooler line connections during service ??? allowing a complete reseal without having to source individual gaskets from multiple sources.

Which 3116 engine serial number prefix does the 1243686 fit?

This gasket kit is specifically designed for Caterpillar 3116 engines with the serial number prefix 98Z. Caterpillar used different prefix groups across production runs, so it is important to match the kit to your specific prefix. The 1002942 kit covers 2BK, 4TF, and 98Z prefixes, while the 1243686 may cover a more specific 98Z application. If you are unsure, reach out to Propel Parts for help verifying fitment.

Is this a high-quality aftermarket gasket kit?

Yes. The 1243686 gasket kit from Propel Parts is a premium aftermarket replacement that meets or exceeds OEM specifications for gasket material, compression properties, and dimensional accuracy. It is engineered to deliver reliable sealing performance in the 3116 engine's oil cooling circuit.

How do I know if the oil cooler line gaskets on my 3116 need replacing?

Common indicators include visible oil leaks at cooler line connection points, oil/coolant mixing (milky oil), unexplained drops in oil level, or coolant level dropping without a visible external leak. Any time the oil cooler is removed for cleaning or repair, replace all disturbed gaskets regardless of their apparent condition.

How difficult is it to replace the oil cooler line gaskets on the 3116?

This repair requires draining engine fluids, removing the oil cooler assembly, thoroughly cleaning all mating surfaces, and carefully installing the new gaskets before reassembly. An experienced diesel mechanic with the correct service manual and tools can complete this work in a well-equipped shop environment.

What other 3116 engine service should I consider at the same time?

When the oil cooler is removed for gasket replacement, it is an ideal time to inspect the oil cooler core for sludge or blockage, check oil and coolant for contamination, replace the engine oil and filter, inspect all accessible hoses and connections, and address any other known engine issues to maximize the value of the labor investment.

Where can I find more engine parts and overhaul kits for the Caterpillar 3116?

For a complete range of 3116 engine service components, browse the Caterpillar engine parts catalog at Propel Parts ??? featuring gaskets, overhaul kits, bearings, liners, and more for the 3116 and other major CAT engine platforms.

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

This 1243686 Engine Gasket Kit is compatible with the following models:
3116, 98Z & 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.