Fits for Caterpillar Excavator CAT 320D 323D 325D 329D Hydraulic Radiator Core 326-3870 3263870 312-8340 3128340
Fits for Caterpillar Excavator CAT 320D 323D 325D 329D Hydraulic Radiator Core 326-3870 3263870 312-8340 3128340 is backordered and will ship as soon as it is back in stock.
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Powering 10,000+ Commercial Fleets
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One Year Warranty
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Easy 60-day Return
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Expert support & Fitment Guarantee
Description
Description
Fits for Caterpillar Excavator CAT 320D 323D 325D 329D Hydraulic Radiator Core 326-3870 312-8340
Condition: new, aftermarket
Part number: 326-3870, 312-8340, 3263870, 3128340
Application: Model: Fits for Caterpillar Excavator CAT 320D E320D 323D E 323D 329D 325D
Fitment details:
320D & 320D L Excavators A6F00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators CXY00001-UP (MACHINE) POWERED BY 3066 Engine
320D & 320D L Excavators FAL00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators JFZ00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators KLM00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators MCH00001-UP (MACHINE) POWERED BY C6.4 Engine
320D Excavator BZP00001-UP (MACHINE) POWERED BY C6.4 Engine
320D Excavator KHN00001-UP (MACHINE) POWERED BY C6.4 Engine
320D FM Forest Swing Machine BWW00001-UP (MACHINE) POWERED BY C6.4 Engine
320D FM Forest Swing Machine CYZ00001-UP (MACHINE) POWERED BY C6.4 Engine
320D Forest Machines BZF00001-UP (MACHINE) POWERED BY C6.4 Engine
320D GC Excavator KTF00001-UP (MACHINE) POWERED BY C6.4 Engine
320D GC Excavator PCM00001-UP (MACHINE) POWERED BY C6.4 Engine
320D L & 320D LN Excavators GDP00001-UP (MACHINE) POWERED BY C6.4 Engine
320D L Excavator A9F00001-UP (MACHINE) POWERED BY C6.4 Engine
320D L Excavator SPN00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
320D Log Loader GKS00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LRR Excavator DHE00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LRR Excavator EJT00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LRR Excavator TAE00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LRR Excavator XCK00001-UP (MACHINE) POWERED BY C6.4 Engine
320D LRR Excavator ZGB00001-UP (MACHINE) POWERED BY C6.4 Engine
320D RR & 320D LRR Excavators GMX00001-UP (MACHINE) POWERED BY C6.4 Engine
320D RR Excavator YDS00001-UP (MACHINE) POWERED BY C6.4 Engine
320D RR FM Forest Swing Machine SRT00001-UP (MACHINE) POWERED BY 3066 Engine
323D & 323D L Excavators WGC00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator BYM00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator GTF00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator LFL00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator PBE00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator YSD00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Mobile Hydraulic Power Unit L5Z00001-UP (MACHINE) POWERED BY C6.4 Engine
323D LN & 323D S Excavators RAC00001-UP (MACHINE) POWERED BY C6.4 Engine
323D LN Mobile Hydraulic Power Unit DCJ00001-UP (MACHINE) POWERED BY C6.4 Engine
323D SA Excavator NES00001-UP (MACHINE) POWERED BY C6.4 Engine
323D, 323D L & 323D LN Excavators CWG00001-UP (MACHINE) POWERED BY C6.4 Engine
324D & 324D L Excavators CJX00001-UP (MACHINE) POWERED BY C7 Engine
324D & 324D L Excavators JAT00001-UP (MACHINE) POWERED BY C7 Engine
324D & 324D L Excavators JZR00001-UP (MACHINE) POWERED BY C7 Engine
324D FM Forest Swing Machine JLS00001-UP (MACHINE) POWERED BY C7 Engine
324D FM JKR00001-UP (MACHINE) POWERED BY C7 Engine
324D L & 324D LN Excavators BTK00001-UP (MACHINE) POWERED BY C7 Engine
324D L & LN Excavator EJC00001-UP (MACHINE) POWERED BY C-7 Engine
324D L Excavator GPK00001-UP (MACHINE) POWERED BY C7 Engine
324D L Excavator LAB00001-UP (MACHINE) POWERED BY C7 Engine
324D L Excavator PYT00001-UP (MACHINE) POWERED BY C7 Engine
324D L Excavator T2D00001-UP (MACHINE) POWERED BY C-7 Engine
324D L Hydraulic Excavator JJG00001-UP (MACHINE) POWERED BY C-7 Engine
324D LN Mobile Hydraulic Power Unit KJR00001-UP (MACHINE) POWERED BY C7 Engine
325D & 325D L Excavators AZP00001-UP (MACHINE) POWERED BY C7 Engine
325D & 325D L Excavators DBH00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine Butt-N-Top Log Loader C9M00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine Butt-N-Top Log Loader High Wide Undercarriage C8L00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine General Forestry Application High Wide Undercarriage C7K00001-UP (MACHINE) POWERED BY C7 Engine
325D L Excavator GBR00001-UP (MACHINE) POWERED BY C7 Engine
325D L Excavator LAL00001-UP (MACHINE) POWERED BY C7 Engine
325D L Excavator NAC00001-UP (MACHINE) POWERED BY C7 Engine
325D L Excavator PAL00001-UP (MACHINE) POWERED BY C7 Engine
325D L Mobile Hydraulic Power Unit H3N00001-UP (MACHINE) POWERED BY C7 Engine
325D L Mobile Hydraulic Power Units C3N00001-UP (MACHINE) POWERED BY C7 Engine
325D Material Handler C4H00001-UP (MACHINE) POWERED BY C-7 Engine
329D & 329D L Excavators BYS00001-UP (MACHINE) POWERED BY C7 Engine
329D & 329D L Excavators DTZ00001-UP (MACHINE) POWERED BY C7 Engine
329D & 329D L Excavators MNB00001-UP (MACHINE) POWERED BY C7 Engine
329D L & 329D LN Excavator BFC00001-UP (MACHINE) POWERED BY C7 Engine
329D L & 329D LN Excavators EBM00001-UP (MACHINE) POWERED BY C7 Engine
329D L Excavator CZF00001-UP (MACHINE) POWERED BY C7 Engine
329D L Excavator JHJ00001-UP (MACHINE) POWERED BY C7 Engine
329D L Excavator TPM00001-UP (MACHINE) POWERED BY C7 Engine
329D L Excavator TZL00001-UP (MACHINE) POWERED BY C7 Engine
329D L Excavator WLT00001-UP (MACHINE) POWERED BY C7 Engine
329D L Mobile Hydraulic Power Unit J8D00001-UP (MACHINE) POWERED BY C7 Engine
329D L Mobile Hydraulic Power Unit J9D00001-UP (MACHINE) POWERED BY C7 Engine
329D L Mobile Hydraulic Power Units L5G00001-UP (MACHINE) POWERED BY C7 Engine
CUSTOM SUPPORT LITERATURE FOR THE 324D FM LGP JGK00001-UP (MACHINE)
M325D L Material Handler EDF02000-UP (MACHINE) POWERED BY C7 Engine
M325D L Material Handler KAY00001-01999 (MACHINE) POWERED BY C-7 Engine
M325D L Material Handler KAY02000-UP (MACHINE) POWERED BY C7 Engine
M325D L Material Handler KGG00001-01999 (MACHINE) POWERED BY C7 Engine
M325D L Material Handler KGG02000-UP (MACHINE) POWERED BY C7 Engine
M325D Material Handler EDF00001-01999 (MACHINE) POWERED BY C-7 Engine
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.
Technical Specifications
Built for Heavy-Duty Conditions
Engineered with industrial-grade aluminum alloy cores and precision-brazed fins, our hydraulic radiators deliver maximum heat dissipation under sustained heavy-load operation — keeping your equipment running at optimal temperature in the most demanding environments.
- Industrial-grade aluminum alloy core
- Precision-brazed fin construction
- Pressure-tested before shipping
- Rated for extreme temperature cycles
Direct OEM Cross-Reference Fitment
Every Fab Heavy Parts radiator is cross-referenced against OEM part numbers to ensure drop-in compatibility. No modifications, no adapters — a direct replacement that installs in the same time as the original, verified against factory service manuals.
- OEM part number cross-referenced
- Direct bolt-on — no modifications
- Verified against factory service manuals
- Fits Komatsu, CAT, Hitachi, Volvo & more
Superior Cooling Efficiency
High-density fin spacing and optimized core geometry maximize heat transfer surface area, delivering cooling performance that meets or exceeds OEM thermal specifications — even under continuous peak-load operation on excavators, loaders, and heavy construction equipment.
- Meets or exceeds OEM thermal specs
- Optimized fin density for max airflow
- Validated under peak-load conditions
- Reduces hydraulic fluid operating temp
How We Compare
OEM-grade quality at a competitive price — with the support and warranty to back it up
| Feature | Fab Heavy Parts | OEM Dealer | Generic Brand |
|---|---|---|---|
| OEM Cross-Reference Verified | ✓ | ✓ | ✗ |
| Industrial-Grade Alloy Core | ✓ | ✓ | Varies |
| 1-Year Warranty | ✓ | Limited | ✗ |
| Expert Technical Support | ✓ | Dealer Only | ✗ |
| Competitive vs OEM Pricing | ✓ | ✗ Premium | ✓ |
| Pressure-Tested Before Ship | ✓ | Varies | ✗ |
Why Fleet Operators Choose Fab Heavy Parts
OEM-Grade Quality
Manufactured to OEM specifications with industrial-grade materials and precision tolerances.
1-Year Warranty
Every radiator backed by our comprehensive 1-year parts warranty with no-hassle claims.
Expert Technical Support
Our parts specialists verify fitment and answer installation questions before and after purchase.
Frequently Asked Questions
Frequently Asked Questions
Shipping and Delivery
What countries do you ship to?
What countries do you ship to?
We can ship to these countries:
Indonesia, Japan, Malaysia, Philippines, Singapore, South Korea, Thailand, Vietnam
United States
Belgium, San Marino, Italy, Spain, Netherlands, France, Germany, Finland, Austria, Denmark, Ireland, Luxembourg, Monaco, Norway, Sweden, Switzerland, Portugal, Poland, Hungary, Canada, Estonia, Australia, Mexico, New Zealand, Bulgaria, Croatia, Cyprus, Czechia, Greece, Greenland, Iceland, Liechtenstein, Lithuania, Malta, Romania, Russia, Slovakia, Slovenia, Latvia, Turkey, United Kingdom
How long will it take to receive my order?
How long will it take to receive my order?
Estimated delivery time to USA: 3-6 workdays;
Estimated delivery time to Canada, Mexico: 4-7 workdays;
Estimated delivery time to Australia: 4-7 workdays;
Estimated delivery time to European countries: 4-7 workdays;
Estimated delivery time to Asian countries: 3-5 workdays.
Returns and Refunds
How do I return a product?
How do I return a product?
Our return policy lasts 60 days. If 60 days have gone by since the delivery, unfortunately, we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused, not installed, clean and in the same condition that you received it. Shrink wrapping must not be broken. It must also be in the original packaging.
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
Steps of Returning Products to Fab Heavy Parts
1. Request returns in seconds at our return portal.
2. Fill in the email address you left with the order & the order number to start the return. Note: a correct order number format starts with a # hashtag
3. Select the items you wish to return and choose the return reason and upload photos of the received package.
Then, Fab Heavy Parts receives your return request and starts to process your return request. We may contact you for more details.
Steps after the approval of your return request:
1. A Return label will be sent to you via email. Print out the return label, place it on the parcel, and take it to the drop-off point. Make sure you properly pack the product for return if it’s returnable.
2. A refund of the original purchase price will be issued.
Any questions about returning products, please feel free to contact us at info@fabheavy.com
How long will it take to receive my refund?
How long will it take to receive my refund?
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment within 3-10 business days.
Payment Methods
What kind of payment methods do you accept?
What kind of payment methods do you accept?
We accept all major credit cards, PayPal, Google Pay, Apply Pay, Shop Pay, debit cards.
If you prefer offline payment, please contact us to get our bank transfer details.
Taxes or duties
Will I receive customs/import duties?
Will I receive customs/import duties?
For orders shipping to the United States, our price includes the import fees. The receiver/buyer doesn't need to pay any extra customs taxes, or duties for their packages. For orders shipping to non-US countries, please check our policy here.
