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Description
47-19453T Outboard Impeller for Mercury Mariner 40HP 50HP 60HP | JLM Marine47 19453T Outboard Impeller for Mercury Mariner 40HP 50HP 60HP JLM Marine This high quality aftermarket impeller is engineered to fit Mercury Mariner 4 stroke outboard engines ranging from 40HP to 60HP, including both carbureted and EFI models across 3 cylinder and 4 cylinder configurations. Designed for reliable cooling system performance, this replacement ensures your engine operates at optimal temperatures during every outing. Direct OEM
47-19453T Outboard Impeller for Mercury Mariner 40HP 50HP 60HP | JLM Marine
This high-quality aftermarket impeller is engineered to fit Mercury Mariner 4-stroke outboard engines ranging from 40HP to 60HP, including both carbureted and EFI models across 3-cylinder and 4-cylinder configurations. Designed for reliable cooling system performance, this replacement ensures your engine operates at optimal temperatures during every outing.
Direct OEM Replacement: 47-19453T
- Fits Mercury Mariner 4-stroke 40HP, 50HP, and 60HP engines (3-cylinder and 4-cylinder)
- Compatible with both carbureted and EFI fuel systems
- Essential component for maintaining proper engine cooling
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Mercury | 47-19453T |
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 | Rated HP | Stroke |
|---|---|---|---|
| Mercury | 40 Carb (3Cyl) | 40 | 4-Stroke |
| Mercury | 40 (4Cyl) | 40 | 4-Stroke |
| Mercury | 40 EFI (4Cyl) | 40 | 4-Stroke |
| Mercury | 50 EFI (4Cyl) | 50 | 4-Stroke |
| Mercury | 50 | 50 | 4-Stroke |
| Mercury | 60 (4Cyl) | 60 | 4-Stroke |
| Mercury | 60 EFI (4Cyl) | 60 | 4-Stroke |
Technical Specifications
| Specification | Value |
| OEM Part Number | 47-19453T |
| Application | Outboard Water Pump Impeller |
| Compatible Brand | Mercury Mariner |
| Engine Type | 4-Stroke |
| Horsepower Range | 40HP, 50HP, 60HP |
Package Contents
Your order includes:
- 1 × Outboard Impeller
Installation Guide
- Disconnect the fuel line and remove the engine cowling to access the lower unit. Tilt the engine fully up and secure it in place.
- Drain the gear oil from the lower unit by removing the drain and vent screws. Disconnect the water intake hose if necessary.
- Remove the lower unit by loosening the mounting bolts that secure it to the mid-section. Carefully slide the lower unit away from the drive shaft.
- Access the water pump housing by removing the bolts that hold the pump cover in place. Take note of the orientation of components for reassembly.
- Remove the old impeller carefully, inspecting the housing and plate for wear, corrosion, or damage. Clean all surfaces thoroughly.
- Lubricate the new impeller blades with a water-resistant marine grease or glycerin to ease installation and prevent tearing during initial startup.
- Install the new impeller into the housing, ensuring the blades are oriented in the correct rotation direction (check your service manual). Use a twisting motion to seat it fully.
- Reassemble the water pump housing by replacing the pump plate, cover, and gaskets in reverse order. Torque all bolts to manufacturer specifications.
- Reattach the lower unit to the mid-section, aligning the drive shaft and water tube carefully. Secure all mounting bolts and reconnect the water intake hose.
- Refill the lower unit with fresh gear oil through the lower drain hole until it flows from the upper vent hole. Replace both screws securely.
- Reinstall the engine cowling and reconnect the fuel line. Run the engine in a test tank or on muffs to verify proper water flow from the tell-tale outlet.
- Check for leaks around the water pump housing and lower unit seals. Monitor engine temperature during the first few outings to confirm cooling system performance.
Troubleshooting & FAQ
Q: How do I confirm this impeller fits my Mercury Mariner engine?
A: Cross-reference your engine model with the compatibility table above. Check your original impeller or service manual for part number 47-19453T, and use the Mercury Serial Number Guide linked in the compatibility section to identify your exact engine model and year.
Q: How often should I replace my outboard impeller?
A: Most manufacturers recommend replacing your impeller annually or every 200–300 hours of operation, whichever comes first. If you frequently run in sandy or debris-filled water, inspect it more often and replace at the first sign of cracking, missing blades, or reduced flexibility.
Q: What are the signs that my impeller is failing?
A: Common symptoms include weak or no water flow from the tell-tale (pee hole), engine overheating, steam from the cowling, or reduced performance. If you notice any of these, shut down immediately and inspect the impeller and cooling system.
Q: Can I use this impeller in both carbureted and EFI models?
A: Yes, this impeller is designed to fit Mercury Mariner 4-stroke engines in both carbureted and EFI configurations across the 40HP, 50HP, and 60HP range, as listed in the compatibility table.
Q: Is this an OEM or aftermarket impeller?
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?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy