22-861150T02 Gear Oil Drive Lube Monitor Tank Reservoir Fitting for Mercruiser | JLM Marine
This Gear Lube Bulk Head Fitting is designed for Mercruiser sterndrive applications, specifically Alpha and Bravo drive systems. Engineered to replace factory-installed oil reservoir fittings, this component ensures reliable connection and sealing for your drive lube monitor tank.
Direct Replacement for: 22-861150T02, 22-861163, 22-861150A1, 22-861150A2. This aftermarket fitting delivers dependable performance for maintaining proper gear oil levels in your Mercruiser sterndrive.
- Compatible with Alpha and Bravo drive systems
- Replaces multiple Mercruiser OEM part numbers
- Essential component for drive lube monitoring system
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
Superseded By |
| Mercruiser |
22-861150T02 |
Current |
| Mercruiser |
22-861163 |
22-861150T02 |
| Mercruiser |
22-861150A1 |
22-861150T02 |
| Mercruiser |
22-861150A2 |
22-861150T02 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
| Brand |
Model |
Notes |
| Mercruiser |
Alpha Drive |
All Alpha drive models |
| Mercruiser |
Bravo Drive |
All Bravo drive models |
Technical Specifications
| Specification |
Value |
| OEM Part Number |
22-861150T02 |
| Replaces Part Numbers |
22-861163, 22-861150A1, 22-861150A2 |
| Application |
Gear Oil Drive Lube Monitor Tank Reservoir |
| Compatible Drive Systems |
Alpha & Bravo |
| Product Type |
Bulk Head Fitting |
Package Contents
- 1 × Gear Lube Bulk Head Fitting (22-861150T02)
Installation Guide
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Drain the gear oil: Before removing the old fitting, ensure the drive lube reservoir tank is drained or at minimum level to prevent spillage.
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Remove the old fitting: Carefully unscrew the existing bulk head fitting from the oil reservoir tank using the appropriate wrench.
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Clean the mounting area: Wipe the threaded hole and surrounding area to remove old sealant, debris, or oil residue.
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Prepare the new fitting: Apply marine-grade thread sealant to the threads of the new fitting to ensure a leak-proof seal.
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Install the new fitting: Thread the new bulk head fitting into the reservoir tank by hand first, then tighten securely with a wrench—do not over-torque.
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Reconnect hoses: Attach the drive lube hoses to the new fitting, ensuring all connections are secure and properly seated.
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Refill gear oil: Fill the reservoir tank with the manufacturer-recommended gear lube to the proper level.
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Check for leaks: Start the engine and inspect the fitting and all connections for any signs of oil leakage.
Troubleshooting & FAQ
Q: How do I confirm this fitting is compatible with my Mercruiser sterndrive?
A: This fitting is designed for Alpha and Bravo drive systems. Verify your drive type and cross-reference your existing part number (22-861150T02, 22-861163, 22-861150A1, or 22-861150A2) with the table above.
Q: What should I do if the fitting leaks after installation?
A: Ensure you applied marine-grade thread sealant to the threads before installation. If leaking persists, remove the fitting, clean the threads thoroughly, reapply sealant, and retighten to the proper torque specification.
Q: Can I reuse the old fitting if it's not visibly damaged?
A: It's not recommended. Fittings can develop hairline cracks or thread wear over time that aren't always visible but can cause leaks and compromise your gear oil monitoring system.
Q: How often should this fitting be inspected or replaced?
A: Inspect the fitting annually or whenever you service your sterndrive. Replace it immediately if you notice any cracks, leaks, or difficulty maintaining proper gear oil levels.
Q: What's the difference between OEM and aftermarket fittings?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.