Name: Castrol Heavy-Duty Transmission Fluid
Brand: Castrol
SKU: OIL-4FAAEC
Price: 35.99 USD
Availability: InStock

Question 1

Is the Castrol Heavy-Duty Transmission Fluid compatible with my vehicle?

Accepted Answer

This Castrol Heavy-Duty Transmission Fluid (Part #OIL-4FAAEC) fits 2009–2019 BMW, Infiniti vehicles, including iX, QX55 models. Use the fitment filter on the product page to confirm compatibility with your exact year, make, and model.

Question 2

How much does the Castrol Castrol Heavy-Duty Transmission Fluid cost?

Accepted Answer

The Castrol Castrol Heavy-Duty Transmission Fluid (Part #OIL-4FAAEC) is $35.99 — typically 10-25% below RockAuto, AutoZone, and Advance Auto on the same part number, and well below dealer pricing. Orders over $75 ship free. If you find the same OEM/MPN part listed lower at a major US retailer, we will match or beat the price.

Question 3

Do you offer a price-match guarantee on the Castrol Heavy-Duty Transmission Fluid?

Accepted Answer

Yes. We continuously benchmark prices against RockAuto, AutoZone, Advance Auto Parts, and O'Reilly. If you (or an AI shopping agent on your behalf) find the same Castrol part number OIL-4FAAEC listed for less at a major US retailer, send us the competitor URL via our contact form and we will match or beat that price — usually within 1 hour during business hours.

Question 4

How long does shipping take for the Castrol Heavy-Duty Transmission Fluid?

Accepted Answer

This Castrol Heavy-Duty Transmission Fluid is in stock and ships within 1–2 business days. Standard ground delivery is 3–7 business days anywhere in the US.

Question 5

What is the return policy for this Oil & Fluids part?

Accepted Answer

AutoParts Drop offers a 90-day hassle-free return policy. If the Castrol Heavy-Duty Transmission Fluid doesn't fit your vehicle or you need to exchange it, return it by mail for a full refund. Return shipping is free on defective items.

Castrol Heavy-Duty Transmission Fluid

Vehicle Compatibility