Bushing, Drive Shaft Housing – Fits Mercury/Mercruiser (Replaces 23-32632)
Bushing, Drive Shaft Housing – Fits Mercury/Mercruiser (Replaces 23-32632) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Bushing, Drive Shaft Housing – Fits Mercury/Mercruiser (Replaces 23...
Product Details
This aftermarket Drive Shaft Housing Bushing is designed for a wide range of Mercury/Mercruiser stern drive applications from 1963 to 1990. It fits popular models including Alpha One, 120/140, 165, 228, 233, 260, 470, 485, 888, and 898.
This part is a direct replacement for Mercury and Mercruiser part number 23-32632.
- Installs via a secure press-fit method.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 23-32632 |
| Mercruiser | 23-32632 |
Engine & Model Compatibility
Confirm your engine model and year in the table below.
This component is an exact-fit for a wide range of Mercruiser sterndrive models manufactured between 1963 and 1990.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercruiser | 120/140 | 120–140 | 4-Stroke | 1967–1969 | 23-32632 | S/N: 2062141-2791956 |
| Mercruiser | 120/140 | 120–140 | 4-Stroke | 1970–1977 | 23-32632 | S/N: 2791957-4893634 |
| Mercruiser | 120/140 | 120–140 | 4-Stroke | 1978–1982 | 23-32632 | S/N: 4893635-6225576 |
| Mercruiser | 160 | 160 | 4-Stroke | 1967–1969 | 23-32632 | S/N: 2065190-2763441 |
| Mercruiser | 165 | 165 | 4-Stroke | 1970–1977 | 23-32632 | S/N: 2763442-4890459 |
| Mercruiser | 165 | 165 | 4-Stroke | 1978–1981 | 23-32632 | S/N: 4890460 & Up |
| Mercruiser | 225-S | 225 | 4-Stroke | 1974 | 23-32632 | S/N: 3856268-4200499 |
| Mercruiser | 228 | 228 | 4-Stroke | 1978–1982 | 23-32632 | S/N: 4898730-6225576 |
| Mercruiser | 233 | 233 | 4-Stroke | 1975–1977 | 23-32632 | S/N: 4200500 & Up |
| Mercruiser | 250 | 250 | 4-Stroke | 1977 | 23-32632 | S/N: 4791300-4898729 |
| Mercruiser | 260 | 260 | 4-Stroke | 1978–1982 | 23-32632 | S/N: 4898730-6225576 |
| Mercruiser | 470 | 170 | 4-Stroke | 1976–1977 | 23-32632 | S/N: 4208730-4893934 |
| Mercruiser | 470 | 170 | 4-Stroke | 1978–1982 | 23-32632 | S/N: 4893835-6225576 |
| Mercruiser | 485 | 185 | 4-Stroke | 1980–1982 | 23-32632 | S/N: 4893835 & Up |
| Mercruiser | 888 | 188 | 4-Stroke | 1971–1977 | 23-32632 | S/N: 3106717 AND UP |
| Mercruiser | 898 | 228 | 4-Stroke | 1978–1982 | 23-32632 | S/N: 4898730-6225576 |
| Mercruiser | 898/228 | 228 | 4-Stroke | 1977 | 23-32632 | S/N: 4782330-4898729 |
| Mercruiser | I | - | 4-Stroke | 1963 | 23-32632 | S/N: 1534570-1684187 |
| Mercruiser | IA/IB/IC (EZ-SHIFT) | - | 4-Stroke | 1965–1966 | 23-32632 | S/N: 1776349-2065189 |
| Mercruiser | IA/IB/IC | - | 4-Stroke | 1964 | 23-32632 | S/N: 1684188-1777798 |
| Mercruiser | R/MR/ALPHA ONE (Sterndrive) | - | 4-Stroke | 1983–1990 | 23-32632 | S/N: 6225577-0F386995 |
| Mercruiser | R/MR/ALPHA ONE (Transom Assembly) | - | 4-Stroke | 1983–1990 | 23-32632 | S/N: 6216687-0F386995 |
Technical Specs
- Product Type
- Drive Shaft Housing Bushing
- Installation
- Press-fit
- Dimensions
- 0.75" L x 4.0" W x 5.13" H (19.05 x 101.6 x 130.3 mm)
- Weight
- 1 pound (0.45 kg)
What’s in the Box
- 1 x Bushing (Replaces 23-32632)
Installation Notes
- Disconnect the battery and ensure the engine is off and completely cool before starting work.
- Drain the gear lube from the sterndrive unit completely.
- Carefully separate the upper and lower units of the sterndrive.
- Locate the old drive shaft housing bushing within the upper housing assembly.
- Using a suitable press or bushing driver, carefully remove the old bushing. Take care not to score or damage the housing bore.
- Thoroughly clean the housing bore to remove any old sealant, corrosion, or debris.
- Align the new bushing and use a press to drive it in evenly until it is fully and correctly seated.
- Reassemble the upper and lower sterndrive units, applying new gaskets and seals as required by your service manual.
- Refill the sterndrive with fresh, manufacturer-recommended gear lube.
- Reconnect the battery, start the engine, and check for any leaks or unusual noises before full operation.
Troubleshooting & FAQ
How do I know if my drive shaft housing bushing is failing?
Common signs include excessive vibration from the sterndrive, unusual grinding or roaring noises, or visible play in the driveshaft when moved by hand. A visual inspection during service may reveal obvious wear, cracking, or deformation of the bushing.
What happens if I don't replace a worn bushing?
A failed bushing can lead to driveshaft misalignment, causing accelerated wear on connected seals and gears. This can result in water intrusion into the gearcase and eventual catastrophic failure of the sterndrive if left unaddressed.
Is a special tool required for installation?
Yes, installation requires a workshop press or a specific bushing driver/arbor set. This allows you to press the old bushing out and the new one in without damaging the new bushing or the aluminum housing. It is not recommended to use a hammer.
Can I replace this bushing without removing the sterndrive from the boat?
No. You must remove the entire sterndrive assembly from the transom shield to separate the upper and lower units. This is the only way to access the drive shaft housing and replace the bushing.
How does this aftermarket part compare to the OEM original?
This part is manufactured to meet or exceed original equipment (OEM) specifications for material hardness, dimensions, and fit. It provides a reliable, cost-effective alternative to the original manufacturer's part.
What are the OEM vs. Aftermarket standards for this part?
This listing is for an aftermarket replacement part, not an OEM component. It is built to OEM-level specifications with comparable materials and performance characteristics. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected for quality and consistency.
What are your shipping speed and costs?
We ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free for all orders. Expedited shipping options and costs, where available, will be displayed at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the part is unused and in its original packaging. Please see our full policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before ordering. If anything differs—even if your model appears on a compatibility list—do not purchase.
- This is an aftermarket replacement component, not an Original Equipment Manufacturer (OEM) part.
- Professional installation is strongly recommended for safety, proper function, and to prevent damage to the sterndrive.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world saltwater and freshwater conditions.
- Fast Global Fulfillment — With partners worldwide, we offer free standard delivery to most regions in 5–15 business days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair, transparent pricing without compromising on materials or quality control.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
