ECU Controller 366-8821 for Caterpillar CAT Engine 3066 C13 C15 C9 C6.4 C4.2 Excavator 307D 308D 311D 314D 319DLN 320D 323D 324D 325DLN 328D 329D 330D
ECU Controller 366-8821 for Caterpillar CAT Engine 3066 C13 C15 C9 C6.4 C4.2 Excavator 307D 308D 311D 314D 319DLN 320D 323D 324D 325DLN 328D 329D 330D 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
Compatibility Information
Description
Description
ECU Controller 366-8821 — Fits Caterpillar CAT Engines 3066, C13, C15, C9, C6.4, C4.2 Excavators
This new aftermarket ECU Controller 366-8821 is designed to regulate engine functions and optimize performance for various Caterpillar engines and excavator models. Sold as a single unit, it ensures reliable operation in heavy equipment applications.
Part Details
- Condition: New, Aftermarket
- Quantity: 1
- Compatible Brand: Caterpillar, Mitsubishi
Compatible Part Numbers
- 366-8821
- 3668821
- CA3668821
Compatible Engines
- Caterpillar 3066
- Caterpillar C13
- Caterpillar C15 / C-15
- Caterpillar C18
- Caterpillar C4.2
- Caterpillar C6.4
- Caterpillar C7 / C-7
- Caterpillar C9 / C-9
- Mitsubishi 4M40
Compatible Equipment
- Caterpillar Excavator 307D
- 308D
- 311D LRR
- 312D, 312D L
- 314D CR, 314D LCR
- 315D L
- 319D L, 319D LN
- 320D, 320D FM, 320D L, 320D LN, 320D LRR, 320D RR
- 321D LCR
- 323D, 323D L, 323D LN
- 324D, 324D FM, 324D L, 324D LN
- 325D, 325D L, 325D LN
- 328D LCR
- 329D, 329D L, 329D LN
- 330D, 330D L, 330D N
- 336D, 336D L, 336D LN, 336D2 L
- 345D, 345D L
- 349D2
- 374D L
- 390D L
- M325D, M325D L, M325D L MH, M325D MH
- M330D
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 the UK?
Yes, we ship to mainland UK, Scotland, Wales, and Northern Ireland. Shipping rates and estimated delivery times are displayed at checkout.
Will I be charged import duties or VAT?
Our prices do not include VAT or import duties. UK and European customers are responsible for any applicable import taxes, VAT, and customs fees charged upon entry into their country. These charges vary depending on the commodity code, order value, and destination country. We recommend checking with your local customs authority or HMRC (for UK customers) before placing your order.
How long will delivery take to the UK?
Standard delivery to UK addresses is typically 4–7 business days from dispatch. Express options may be available at checkout. Customs clearance can add 1–3 additional business days in some cases.
Are your parts compatible with UK and European specifications?
Many of our engine, hydraulic, and powertrain components are compatible with EU and UK-market machines. Please verify the part number against your OEM manual or machine serial plate before ordering. Contact us with your machine make, model, and serial number if you need fitment confirmation.
What currency will I be charged in?
UK customers are billed in GBP (£).
What is your returns policy for UK orders?
We accept returns within 30 days of delivery for unused parts in original packaging. UK customers are protected under the Consumer Contracts Regulations 2013, which grants a 14-day right to cancel an order before it has been dispatched. Once an order has been fulfilled and shipped, standard return terms apply. Return shipping costs for non-defective items are the buyer's responsibility.
How do I verify a part number before ordering?
Each listing includes part numbers and compatible machine models. Cross-reference with your OEM workshop manual, or contact our technical team via the contact form with your machine make, model, year, and serial number.
Do you offer trade accounts for UK buyers?
Yes. UK trade customers can apply for a B2B account to access volume pricing and dedicated account support.
What payment methods do you accept?
We accept all major credit and debit cards including Visa, Mastercard, and American Express. We also support PayPal, Apple Pay, and Google Pay at checkout. For B2B and trade customers, bank transfer (BACS) and net payment terms may be available upon account approval — please contact us to discuss your requirements.
