• 60 Day Money Back Guarantee

    Hassle free returns policy

  • Fast Shipping

    Most products shipped in 36 hours

  • In-house Experts

    We know our products

  • Chat facility

    Talk to a real person

4.6/5 based on 900+ Verified Reviews

Fab Heavy Parts  |  SKU: rob260727289

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

$3,057.00 CAD

Choose your location

enter a zip or postal code
PayPalAmerican Express Apple Pay BancontactGoogle Pay iDEAL WeroMastercard MB WAY Shop Pay Union PayVisa
  • Powering 10,000+ Commercial Fleets

  • One Year Warranty

  • Easy 60-day Return

  • Expert support & Fitment Guarantee

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

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

Estimated delivery time 3-6 workdays

No Core Charge

We don't have a core charge for any products.

Frequently Asked Questions

What will shipping cost?

Shipping is calculated in your cart. Enter your province and postal code to see the available rate before checkout.

When will my order arrive?

Processing normally takes 1–2 business days. Estimated delivery to Canada is 4–7 workdays after dispatch. For parts weighing over 68 kg, delivery may take 5–10 workdays. Carrier or customs delays may add time.

Will I pay Canadian duties or GST?

Yes. Prices do not include Canadian import duties, GST/HST, or customs-clearance fees. If charges apply, the carrier or Canadian customs will contact you for payment before delivery.

Customs duty: Auto parts imported from China commonly have duty rates of approximately 6%–8.5% of the CIF value (cost, insurance, and freight), depending on the product’s HS code. Canada and China do not have a free trade agreement.

GST/HST: A 5% federal GST generally applies to commercial imports. Depending on the destination province, a combined HST rate of approximately 13%–15% may apply instead.

These rates are estimates. The final amount is determined by Canadian customs based on the product classification, declared value, origin, and destination.

Can I return my order?

Eligible unused parts may be returned within 60 days of delivery. Items must be uninstalled, clean, undamaged, and in their original packaging. To start a return, please begin from our return portal before sending anything back.

Are prices shown in Canadian dollars?

Yes. For orders shipping to Canada, all product prices and checkout amounts are shown in Canadian dollars, and you can pay in CAD.

Do you offer B2B accounts?

Yes. We welcome B2B customers and can invite your team members to our B2B portal, where your business can manage purchasing and place orders with us. Contact us to get started.

How can I pay?

Checkout accepts Visa, Mastercard, PayPal, Shop Pay, Apple Pay, and Google Pay. Available options are shown securely at checkout.

Ask a Question

Feel free to leave your question with us. Our current response time is around 24 hours, though we will get back to you faster when possible.

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 - Fab Heavy Parts
Fab Heavy Parts

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

$3,057.00 CAD

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

Compatible Part Numbers

Compatible Engines

Compatible Equipment

View product