Mercruiser Prestolite Ignition Tune-Up Kit – Fits Ford 888 & 233 Engines (Replaces 392-6325Q1, 6325Q1)
Mercruiser Prestolite Ignition Tune-Up Kit – Fits Ford 888 & 233 Engines (Replaces 392-6325Q1, 6325Q1) is backordered and will ship as soon as it is back in stock.
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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
Mercruiser Prestolite Ignition Tune-Up Kit – Fits Ford 888 & 23...
Product Details
This Mercruiser Prestolite Ignition Tune-Up Kit is designed for specific MerCruiser Ford V8 engines, including the 888 model (serial number 3108723 and up) and the 233 model (serial number 4173000 and up). It is engineered for engines equipped with Prestolite conventional point ignition systems that use clip-down style distributor caps.
It serves as a direct replacement for multiple OEM and aftermarket parts, including Mercury/Quicksilver 392-6325Q1/6325Q1, Sierra 18-5258/18-5264, Mallory 9-29305, OMC 0173690/0987925, and Crusader 41058/41057/41059.
- Installs as a direct replacement for Prestolite V8 point ignition systems.
- Includes ignition points, condenser, and rotor for a complete tune-up.
- Covered by a 1-year factory warranty for peace of mind.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury / Quicksilver | 392-6325Q1 / 6325Q1 |
| Sierra | 18-5258 / 18-5264 |
| Mallory | 9-29305 |
| OMC | 0173690 / 0987925 |
| Crusader | 41058 / 41057 / 41059 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser applications, this kit fits Ford 888 and 233 engines above the specified serial numbers.
For other applications, this kit is compatible with various Chris-Craft, OMC, and Crusader models that use Ford V8 engines with Prestolite ignition systems.
| Brand | Model | Engine | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| MerCruiser | 888 | Ford V8 | 4-Stroke | 392-6325Q1 | Serial number 3108723 and above |
| MerCruiser | 233 | Ford V8 | 4-Stroke | 392-6325Q1 | Serial number 4173000 and above |
| Chris-Craft | V-8 | Ford | 4-Stroke | With Prestolite ignition and strap type condenser | |
| OMC | Ford V-8 | 4-Stroke | 0173690/0987925 | Multiple applications | |
| Crusader | Ford V-8 | 4-Stroke | 41058/41057/41059 |
Technical Specs
- Product Type
- Ignition Tune-Up Kit
- Installation
- Direct replacement for Prestolite V-8 point ignition systems with clip-down cap
- Fuel Type
- Gasoline
- Dimensions
- 41.4 × 181.1 × 152.4 mm (1.63 × 7.13 × 6.0 in) [package dimensions]
- Weight
- 0.07 kg (0.15 lb)
- Warranty
- 1 year Mercury Marine & Quicksilver factory warranty against defects and workmanship
- Other Technical Attributes
- For use with Prestolite conventional ignition systems
What’s in the Box
- 1 x Ignition Points
- 1 x Condenser
- 1 x Rotor
- 1 x Screw
- 1 x Bracket
Installation Notes
- Disconnect the battery terminals to prevent electrical shorts.
- Remove the distributor cap by releasing the hold-down clips.
- Note the orientation of the rotor before pulling it straight off the distributor shaft.
- Disconnect the primary lead wire and remove the old points and condenser.
- Install the new condenser and ignition points, ensuring the points are properly seated.
- Set the initial point gap according to your engine's service manual specifications.
- Install the new rotor, aligning it correctly on the distributor shaft.
- Re-install the distributor cap and secure the clips.
- Reconnect the battery terminals and start the engine to test for proper operation. Fine-tune timing as needed.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine?
Check your engine model and serial number. This kit is for MerCruiser Ford 888 (serial # 3108723+) and Ford 233 (serial # 4173000+) engines with Prestolite conventional ignition systems using a clip-down cap. For other brands, verify you have a Ford V8 with a compatible Prestolite system.
What are common signs that my ignition components need replacement?
Symptoms of a faulty ignition system include engine misfires, rough idling, difficulty starting, reduced power, and poor fuel economy. Visual inspection may reveal worn or burnt contacts on the points or a cracked distributor rotor.
What is the recommended replacement interval for this tune-up kit?
For conventional point ignition systems, it is good practice to inspect components annually and replace them as needed, or typically every 100-200 operating hours, depending on use and conditions, to maintain peak engine performance.
Can I install this kit myself?
Yes, this kit is suitable for DIY installation if you have basic mechanical skills and the correct tools, including a feeler gauge and potentially a dwell meter. However, if you are unsure about the process, we recommend professional installation to ensure safety and correct timing.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and reliability.
Shipping speed & cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available for your location.
Warranty & returns?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact our support team with your order details. Returns are accepted within our standard window for unused items in original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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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