Prestolite Tune-Up Kit – Fits MerCruiser 3.0L/3.7L/3.8L/5.7L/V8 Engines (Replaces 392-6324Q1)
Prestolite Tune-Up Kit – Fits MerCruiser 3.0L/3.7L/3.8L/5.7L/V8 Engines (Replaces 392-6324Q1) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Prestolite Tune-Up Kit – Fits MerCruiser 3.0L/3.7L/3.8L/5.7L/V8 Eng...
Product Details
This Prestolite Tune-Up Kit is designed for a range of marine engines, including MerCruiser 3.0L, 3.7L, 3.8L (V-6), 5.7L, and V8 models equipped with Prestolite Conventional Ignition Systems that use screw-down caps. It also offers compatibility for select Volvo Penta, Crusader, and Pleasurecraft applications using Prestolite ignition.
It serves as a direct interchange for several part numbers, including Mercury/Quicksilver 392-6324Q1, 6324Q1, 6324A1, and OMC 173829, 987926.
- Installs as a direct replacement for conventional Prestolite systems with screw-down caps.
- Kit includes essential ignition components: points, condenser, and rotor.
- Designed for use in gasoline marine engines.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury / Quicksilver | 392-6324Q1 |
| Mercury / Quicksilver | 6324Q1 |
| Mercury / Quicksilver | 6324A1 |
| OMC | 173829 |
| OMC | 987926 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser applications: Fits various V-6 and V8 engines with Prestolite Conventional Ignition Systems and screw-down caps.
For Volvo Penta applications: Compatible with some models using a Prestolite #IBM-7013A distributor with a screw-down cap.
For OMC applications: Functions as a replacement for part numbers 173829 and 987926 in select applications.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | 3.0L Alpha | 140 | 4-Stroke | 1990 | 392-6324Q1 | |
| MerCruiser | 3.0L | - | 4-Stroke | 1999 | 392-6324Q1 | |
| MerCruiser | 470 | 170 | 4-Stroke | 1977 | 392-6324Q1 | |
| MerCruiser | 3.7L Alpha | 170 | 4-Stroke | 1986 | 392-6324Q1 | |
| MerCruiser | 4.3 V6 | 175 | 4-Stroke | 1987–1990 | 392-6324Q1 | |
| MerCruiser | 4.3LX Gen II | 195 | 4-Stroke | 1992 | 392-6324Q1 | |
| MerCruiser | 4.3LX Gen II | 200 | 4-Stroke | 1995 | 392-6324Q1 | |
| MerCruiser | 302 V8 Ford | 225 | 4-Stroke | 1974 | 392-6324Q1 | |
| MerCruiser | 888 Ford | 228 | 4-Stroke | 1977 | 392-6324Q1 | |
| MerCruiser | 5.0 V8 | 230 | 4-Stroke | 1990–1993 | 392-6324Q1 | |
| MerCruiser | V8 Ford | 233 | 4-Stroke | 1976 | 392-6324Q1 | |
| MerCruiser | 5.7 V8 | 260 | 4-Stroke | 1978 | 392-6324Q1 | |
| MerCruiser | V8 350 MAG | 260 | 4-Stroke | 1991 | 392-6324Q1 | |
| Volvo Penta | Models with Prestolite distributor #IBM-7013A | 4-Stroke | Requires screw-down cap | |||
| OMC | Various models | 4-Stroke | 173829, 987926 |
Technical Specs
- Product Type
- Ignition Tune-Up Kit
- Installation
- Direct replacement for conventional Prestolite ignition systems with screw-down caps
- Fuel Type
- Gasoline
- Dimensions
- 7.5 x 6.0 x 1.63 inches
- Weight
- 0.10 lb (0.045 kg)
- Warranty
- 30 days (varies by retailer)
- Other Technical Attributes
- For MerCruiser engines with Prestolite Conventional Ignition Systems having screw-down caps
What’s in the Box
- 1 x Ignition Points
- 1 x Condenser
- 1 x Rotor
Installation Notes
- Disconnect the negative battery cable to prevent electrical shorts.
- Carefully unclip or unscrew the distributor cap and move it aside.
- Note the orientation of the rotor, then pull it straight off the distributor shaft.
- Disconnect the primary wire and remove the mounting screws for the old points and condenser. Remove the parts.
- Install the new condenser and points. Set the point gap according to your engine’s service manual specifications.
- Install the new rotor, ensuring it is seated correctly.
- Reinstall the distributor cap, secure the clips or screws, and reconnect the battery cable.
Troubleshooting & FAQ
How do I confirm this kit fits my engine?
This kit is for engines with Prestolite conventional ignition systems and screw-down distributor caps. Verify your engine model in the compatibility table and cross-reference the part number with your service manual. Visually comparing the rotor and points to your old parts is also a reliable check.
What are common symptoms of failing ignition points or a bad condenser?
Signs include engine misfires, hard starting, rough idling, poor acceleration, and reduced fuel economy. A visual inspection may show pitted, corroded, or burned contact points.
Is setting the point gap necessary during installation?
Yes, setting the correct point gap is critical for proper ignition timing and dwell angle. Use a feeler gauge and refer to your engine's service manual for the exact specification. An incorrect gap can lead to poor performance and potential engine damage.
How often should I replace these ignition parts?
For conventional ignition systems, a typical service interval is every 100-200 operating hours or annually, whichever comes first. Refer to your engine’s maintenance schedule for specific recommendations.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our 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.
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