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Honda ECU 37820-RRF-Q11 Engine Control Unit | Genuine OEM VTEC ECU 4848-100243 Replacement

by Shiraz Amjad 16 Feb 2026
Honda ECU 37820-RRF-Q11 Engine Control Unit | Genuine OEM VTEC ECU 4848-100243 Replacement, auto man spare parts

Honda ECU 37820-RRF-Q11 Engine Control Unit – Genuine OEM VTEC ECU

If your Honda is experiencing rough idling, engine hesitation, poor fuel economy, or persistent warning lights, your Engine Control Unit (ECU) may be at fault.

At Automan Spare Parts, we supply the Honda ECU 37820-RRF-Q11, a Genuine OEM Engine Control Unit (also referenced as 4848-100243 VTEC) engineered to restore original performance and drivability.

Manufactured to factory specifications by Honda, this ECU manages vital engine functions including fuel injection, ignition timing, VTEC engagement, emissions control, and throttle response. Replacing a faulty ECU with a genuine OEM unit ensures smoother acceleration, improved fuel efficiency, and long-term reliability.

Product Details

  • Part Number: 37820-RRF-Q11

  • Alternate Reference: 4848-100243

  • System: VTEC Engine Management

  • Part Type: Engine Control Unit (ECU / ECM / PCM)

  • Condition: Genuine Used OEM – Fully Tested

  • Programming: Immobilizer or key matching may be required

  • Warranty: 30 Days

  • Shipping: Fast Worldwide Delivery with Tracking

Every ECU is professionally inspected and bench-tested prior to dispatch to meet OEM performance standards.

Compatibility List – Honda ECU 37820-RRF-Q11

This Engine Control Unit is commonly compatible with selected Honda petrol models equipped with VTEC systems, including:

  • Honda 1.5L VTEC Engines

  • Honda 1.8L VTEC Engines

  • Honda Automatic Transmission Variants

  • Honda Manual Transmission Variants

  • Asian Market Honda Models

  • UK / EU Specification Honda Vehicles

Important: Always confirm your ECU part number 37820-RRF-Q11 before ordering. If unsure, you may send your VIN or ECU photo to Automan Spare Parts for verification.

Common Symptoms of a Faulty Honda ECU

A failing ECU can cause multiple drivability issues such as:

  • Check Engine Light staying on

  • Hard starting or no-start condition

  • Engine stalling

  • Poor throttle response

  • Increased fuel consumption

  • VTEC not engaging properly

  • Random diagnostic fault codes

  • Transmission shifting irregularities

Installing a genuine OEM ECU often resolves these problems immediately.

Why Buy from Automan Spare Parts?

We specialize in genuine OEM automotive electronics and Engine Control Units for customers worldwide.

When you order from Automan Spare Parts, you receive:

  • Genuine Used OEM Components

  • Fully Tested ECUs

  • Competitive Wholesale Pricing

  • Fast International Shipping

  • Live Tracking on Every Order

  • 30-Day Warranty

  • Dedicated Technical Support

We ship globally, including USA, UK, Canada, Australia, UAE, and Europe.

Installation & Programming Notes

Most Honda ECUs require:

  • Immobilizer synchronization

  • Key programming

  • Basic ECU coding using diagnostic equipment

Professional installation is strongly recommended to ensure correct operation.

Order Honda ECU 37820-RRF-Q11 Today

Restore factory performance with a Genuine OEM Honda Engine Control Unit 37820-RRF-Q11 (4848-100243 VTEC) from Automan Spare Parts.

Call / WhatsApp: +971 50 502 8848
Email: sales@automanspareparts.com
Website: www.automanspareparts.com

Worldwide shipping available with fast dispatch.


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Terms and condition Buyer note: We are not responsible for any custom duty or import tax. Free shipping is not applicable for zone 6 countries which is mentioned in the shipping policy OVERVIEW This website is operated by AUTOMANSPAREPARTS. Throughout the site, the terms “we”, “us” and “our” refer to AUTOMANSPAREPARTS. AUTOMANSPAREPARTS offers this website, including all information, tools and Services available from this site to you, the user, conditioned upon your acceptance of all terms, conditions, policies and notices stated here. By visiting our site and/ or purchasing something from us, you engage in our “Service” and agree to be bound by the following terms and conditions (“Terms of Service”, “Terms”), including those additional terms and conditions and policies referenced herein and/or available by hyperlink. These Terms of Service apply to all users of the site, including without limitation users who are browsers, vendors, customers, merchants, and/ or contributors of content. Please read these Terms of Service carefully before accessing or using our website. By accessing or using any part of the site, you agree to be bound by these Terms of Service. If you do not agree to all the terms and conditions of this agreement, then you may not access the website or use any Services. If these Terms of Service are considered an offer, acceptance is expressly limited to these Terms of Service. Any new features or tools which are added to the current store shall also be subject to the Terms of Service. You can review the most current version of the Terms of Service at any time on this page. We reserve the right to update, change or replace any part of these Terms of Service by posting updates and/or changes to our website. It is your responsibility to check this page periodically for changes. Your continued use of or access to the website following the posting of any changes constitutes acceptance of those changes. Our store is hosted on Shopify Inc. They provide us with the online e-commerce platform that allows us to sell our products and Services to you. SECTION 1 - ONLINE STORE TERMS By agreeing to these Terms of Service, you represent that you are at least the age of majority in your state or province of residence, or that you are the age of majority in your state or province of residence and you have given us your consent to allow any of your minor dependents to use this site. You may not use our products for any illegal or unauthorized purpose nor may you, in the use of the Service, violate any laws in your jurisdiction (including but not limited to copyright laws). You must not transmit any worms or viruses or any code of a destructive nature. A breach or violation of any of the Terms will result in an immediate termination of your Services. 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