Oil Cooler Core 7S-6395 Fits for Caterpillar 3306 3304 Engine 930 950 966 955K 977K D6C D5 D7F
Oil Cooler Core 7S-6395 Fits for Caterpillar 3306 3304 Engine 930 950 966 955K 977K D6C D5 D7F is backordered and will ship as soon as it is back in stock.
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Description
Description
Oil Cooler Core 7S-6395 – Replacement for Caterpillar 3306 3304 Engine 930 950 966 955K 977K D6C D5 D7F
Aftermarket oil cooler core engineered for reliable oil temperature regulation and consistent lubrication system performance in Caterpillar 3304 and 3306 diesel engine applications. Precision-manufactured components ensure drop-in compatibility with correct fitment.
Technical Specifications
- Part Numbers: 7S-6395, CA7S6395, 7S6395, 0R-3499, 0R3499, CA0R3499
- Condition: New, aftermarket replacement
- Function: Transfers heat from engine oil to the coolant circuit to maintain oil temperature within the optimal operating range, protecting bearings, journals, and all lubricated components from thermal degradation across Caterpillar 3304 and 3306 engine applications
Equipment Compatibility
Note: Compatibility is provided for reference. Please verify against your part number before ordering.
Fits the Following Applications:
- Caterpillar Engine: 3304, 3306
- Caterpillar Loader: 920, 930, 950, 951C, 955K, 955L, 966, 966C, 977K, 977L
- Caterpillar Track Type Tractor: D5, D6C, D7F
Why Choose This Oil Cooler Core
The oil cooler core is a critical thermal management component in your Caterpillar diesel engine — it keeps engine oil temperatures within the safe operating range to maintain oil viscosity, film strength, and lubrication effectiveness under sustained heavy loads. A clogged, cracked, or leaking oil cooler core results in overheated oil, accelerated bearing wear, and the risk of catastrophic engine failure in loader and dozer applications where continuous high-load operation is the norm. This replacement unit delivers:
- Reliable oil temperature regulation – Engineered to meet the heat transfer capacity and flow specifications of Caterpillar 3304 and 3306 engine oil cooling systems
- Exact-fit installation – Direct replacement with correct core dimensions, port configuration, and mounting interface to match Caterpillar engine specifications without modification
- Durable construction – Built to withstand continuous thermal cycling, high oil pressure, and the demanding duty requirements of Caterpillar loader and track-type tractor engine operation in construction and earthmoving environments
- Cost-effective solution – Aftermarket quality at a fraction of dealer pricing
Package Contents
- 1 × Oil Cooler Core 7S-6395
Essential for Caterpillar 3304 and 3306 engine oil cooling system maintenance and cooler core replacement across 930, 950, 966, 955K, 977K loader, D5, D6C, and D7F track-type tractor applications. Keep your Caterpillar engine delivering reliable oil temperatures and full protection on every operation.
1 Year Warranty
1 Year Warranty
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Fast Delivery
Fast Delivery
Estimated delivery time 3-6 workdays
No Core Charge
No Core Charge
We don't have a core charge for any products.
Frequently Asked Questions
Do you ship to Australia?
Yes, we ship Australia-wide with tracked international freight. All orders are carefully packaged to ensure parts arrive safely.
How long does shipping to Australia take?
Typically 5–10 business days depending on your location and the freight method selected at checkout.
Will I need to pay import duties or GST?
Goods with a customs value of AUD 1,000 or less are exempt from customs duty. For orders over AUD $1,000, GST and import duties may apply at the Australian border — buyers are responsible for any applicable charges upon delivery.
Are your parts compatible with Australian-spec machines?
Yes, most of our parts are internationally compatible. Please check the fitment details on each product listing to confirm compatibility with your specific machine.
Can I return a part if it doesn't fit?
Yes, we accept returns within 60 days of delivery for unused parts in original condition. Please contact our team to initiate a return.
What payment methods do you accept?
How do I find out the shipping cost for my order?
Shipping costs are calculated based on your location and the size of your order. To get an accurate shipping quote: add the part(s) to your cart, then enter your country, state, and zip code in the shipping estimator at the cart page — the shipping cost will be calculated instantly.
