MerCruiser | Recmar

Upper Gear Set, 2.40 or 1.94 Ratio, 20/24 Tooth for MerCruiser Alpha One Gen II | 43-853642A2

REC43-853642A2

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Key features:

  • Replaces MerCruiser: 43-853642A2
  • Application: MerCruiser Alpha One Gen II
  • Assembly: upper driveshaft housing
  • Serial scope: 0L100040+
  • Selection: match part number and drive details
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$350.00 CAD
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Product Specifications and Features

Upper Gear Set, 2.40 or 1.94 Ratio, 20/24 Tooth for MerCruiser Alpha One Gen II sterndrives. The matched gears transfer drive through the upper unit at the specified 2.40 or 1.94 ratio and 20/24 tooth combination. Use product code REC43-853642A2 to identify the offered product. It cross-references to MerCruiser 43-853642A2.

Selection warning: This is a ratio-specific upper gear set. Match the ratio and printed tooth count before ordering.

Product specifications

Product Upper Gear Set, 2.40 or 1.94 Ratio, 20/24 Tooth
Product code REC43-853642A2
Assembly area Upper gear and driveshaft assembly

Key points

  • Product code: REC43-853642A2
  • MerCruiser cross-reference: 43-853642A2
  • Confirmed application: Alpha One Gen II, serial number 0L100040 and later
  • Assembly area: Upper gear and driveshaft assembly

Installation and selection context

The upper gear set, 2.40 or 1.94 ratio, 20/24 tooth under product code REC43-853642A2 belongs to the upper gear and driveshaft assembly. Match the drive ratio and tooth count, not appearance alone.

Compatibility and fitment

Equipment MerCruiser Alpha One Gen II sterndrive
Confirmed range Serial number 0L100040 and later, 1998 onwards
Assembly area Upper gear and driveshaft assembly
Drive ratio and teeth 2.40 or 1.94 ratio, 20/24 teeth

The confirmed application for Upper Gear Set, 2.40 or 1.94 Ratio, 20/24 Tooth under product code REC43-853642A2 is the drive and serial scope shown above. The product may have other applications where the same product code and cross-reference are independently confirmed.

What to check before ordering

Confirm the upper gear set, 2.40 or 1.94 ratio, 20/24 tooth under product code REC43-853642A2 against the component being replaced. Match the drive ratio and tooth count, not appearance alone.

Part numbers and cross-references

Product code REC43-853642A2
MerCruiser cross-reference 43-853642A2

OEM references are provided for identification. A cross-reference does not mean the item is supplied as a genuine OEM product.

Before ordering

  1. Confirm the sterndrive model and full serial number.
  2. Check product code REC43-853642A2 and every recorded MerCruiser cross-reference.
  3. Apply the ratio, side, material or serial-break instruction where one is stated.
  4. Compare the replacement part with the component being removed.
  5. Contact TMP Global with the drive serial and photographs if any identifier differs.

Frequently asked questions

What does REC43-853642A2 replace?

It cross-references to MerCruiser 43-853642A2.

Does REC43-853642A2 fit every MerCruiser Alpha One Gen II drive?

The confirmed application for REC43-853642A2 covered here is the MerCruiser Alpha One Gen II upper driveshaft housing for serial number 0L100040 and later. For an earlier drive or another assembly, match the product code, OEM reference and technical data before ordering.

Where can I see this part in the exploded diagram assembly?

View the MerCruiser Alpha One Gen II upper driveshaft housing exploded diagram and locate reference 7.

Shipping Information

All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.

Out of stock items can be back-ordered with a typical 3–4 week lead time.

If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.

All times are in UK BST.

Notice: Due to ongoing conflicts impacting logistics, some deliveries or re-stocking may take a little longer than expected. We're working to get your order to you as quickly as possible.

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