Tune-Up Kit for Delco V8 Distributor – Fits MerCruiser V8 Engines (Replaces 801766)
Tune-Up Kit for Delco V8 Distributor – Fits MerCruiser V8 Engines (Replaces 801766) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Tune-Up Kit for Delco V8 Distributor – Fits MerCruiser V8 Engines (...
Product Details
This Tune-Up Kit for Delco V8 Distributor is designed for MerCruiser V8 engines with Delco ignition systems from 1963 onwards. It is compatible with a range of models, including 5.0L, 5.7L, 7.4L, and 8.2L engines equipped with Thunderbolt ignition.
This kit serves as a direct replacement for MerCruiser 801766, Sierra 18-5252, and GLM 72630.
- Installation Method: Direct Replacement
- Application: For conventional points-type ignition systems
- Includes: Distributor rotor, breaker points, and condenser
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| MerCruiser | 801766 |
| Sierra | 18-5252 |
| GLM | 72630 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | 190 GM | V8 | 4-Stroke | 1963 | 801766 | |
| MerCruiser | V8 Engines | Various | 4-Stroke | Various | 801766 | For Delco ignition system |
Technical Specs
- Product Type
- Ignition Tune-Up Kit
- Installation
- Direct Replacement
- Fuel Type
- Gasoline
- Housing Material
- Metal/Plastic
- Housing Color
- Black
- Compatibility
- Delco V8 Distributors
- Other Technical Attributes
- For conventional points-type ignition systems
- Product Dimensions
- 6.0" H x 7.13" W x 2.0" L
What’s in the Box
- 1 x Distributor Rotor
- 1 x Breaker Points Set
- 1 x Condenser
Installation Notes
- Disconnect the negative battery terminal for safety.
- Remove the distributor cap by releasing the clips or screws.
- Note the orientation of the ignition rotor and then pull it straight off the shaft.
- Remove the old breaker points and condenser, disconnecting their electrical leads.
- Install the new condenser and breaker points set, ensuring they are seated correctly.
- Set the breaker point gap using a feeler gauge according to your engine's service manual specifications. This step is critical for correct timing.
- Reinstall the ignition rotor and the distributor cap.
- Reconnect the battery terminal, start the engine, and check ignition timing if necessary.
Troubleshooting & FAQ
How do I know if this kit fits my specific MerCruiser V8 engine?
This kit fits MerCruiser V8 engines (1963 and newer) that use a Delco points-type ignition distributor. It is critical to verify your distributor type, as MerCruiser also used other systems (e.g., Prestolite, HEI). Check compatibility with engine models like the 5.0L, 5.7L, 7.4L, and 8.2L with Thunderbolt ignition.
What are the signs my old tune-up components are failing?
Common symptoms include engine misfires, rough idling, difficulty starting, poor acceleration, and decreased fuel efficiency. A visual inspection may reveal a cracked rotor, pitting or burning on the breaker points, or physical damage to the condenser.
Is setting the points gap necessary during installation?
Yes, setting the correct points gap is crucial for proper ignition timing and overall engine performance. The required gap specification can be found in your engine's official service manual. An incorrect gap can lead to a no-start condition, rough running, or poor power.
How often should I replace my ignition tune-up components?
For conventional points-type ignition systems, a typical maintenance schedule is to inspect and replace these components annually or every 100-200 hours of engine operation to ensure reliable performance and prevent unexpected failure.
Is this an OEM part?
This listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It has been built to meet or exceed OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.
How much is shipping?
We ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free on all orders. Expedited shipping options, if available for your location, will be presented at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original packaging. Please see our full policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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