New 1330125 (0R9056) Core As Replacement suitable for Caterpillar Equipment
- New Core As Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 1330125 Oil Cooler
▶Specification for 1330125 Oil Cooler
▶Exact Fit Guarantee for 1330125 Oil Cooler
▶| Dimensions | 15.94x10.24x7.68 |
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At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.
However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.
I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.
In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.
Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides. -
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
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I own old cat bulldozers D8k,D8H,D8N that required frequent repairs and servicing. it was erratic and practically cumbersome to keep them running without constant supply of reliable
and affordable spares in Uganda a third world country however,since I started dealing with propel parts US,my bulldozers have earned reliability and efficiency in providing high quality services to clients and making me a great dependable construction company in earth moving.
My shipments are always handled expeditiously and delivered in record time to Uganda this is awesome from Propelparts.
My business is booming by the clock for finding the best partner in Propelparts. -
Excellent service and quick response!
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Online order.
I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.
Frequently Asked Questions
What is the function of the 0R9056 core assembly?
The 0R9056 core assembly functions as an oil cooler core, helping transfer heat from engine oil to coolant to maintain proper oil temperature and prevent overheating. A well-functioning oil cooler core helps protect internal engine components and supports consistent performance during demanding operation.
How do I install the 0R9056 core assembly?
Please follow these general steps for proper installation:
- Turn off the engine and allow it to cool completely before working.
- Drain any system fluids as needed to access the cooler assembly.
- Remove the mounting bolts and carefully disconnect lines attached to the old core.
- Position the new core assembly in place and secure bolts to the correct torque specification.
- Reconnect lines and refill fluids according to your machine’s service manual instructions.
- Start the engine and check for leaks or irregular temperature readings.
Always consult your equipment’s service documentation for exact procedures and safety precautions.
Which engines or machines are compatible with the 0R9056 core assembly?
This core assembly fits in heavy machinery and industrial engines where part number 0R9056 or equivalent is specified. It is typically used in large diesel engines such as C15, C18, 3406 series, and similar applications. Compatibility depends on your specific machine model and configuration, so always verify with your service manual or parts reference before ordering.
Does the 0R9056 core assembly meet performance expectations?
Yes, this 0R9056 core assembly is engineered to meet or exceed OEM specifications for durability and heat-transfer performance. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM expectations to support effective cooling and reliable engine protection under varying operating conditions.
How often should the oil cooler core be inspected or replaced?
Oil cooler cores should be inspected as part of regular maintenance, especially during coolant system servicing or if engine oil temperatures run high. Look for signs of contamination, clogging, or physical damage. Replace the core assembly when performance degrades, overheating occurs, or when recommended by your equipment service schedule.
What are common signs that the 0R9056 core assembly needs attention?
Typical indicators include:
- Engine oil running hotter than normal
- Coolant contamination with oil
- Reduced oil cooling efficiency
- Visible damage or leaks from the cooler core
Addressing these signs promptly helps maintain oil viscosity and engine lubrication performance, preventing further issues.
Why is using a quality oil cooler core important for engine performance?
A quality oil cooler core helps maintain proper oil temperature, which preserves oil viscosity and protects engine moving parts from excessive heat and wear. Using genuine or high-quality aftermarket parts that meet or exceed OEM expectations promotes system reliability, reduces the likelihood of overheating, and supports long-term performance of your equipment.

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.

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.

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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