F528068 Thermostat Kit for Chrysler Force | JLM Marine

F528068 Thermostat Kit for Chrysler Force | JLM Marine

This thermostat kit is engineered for Chrysler and Force outboard motors ranging from 70 to 140 HP, manufactured between the late 1970s and 1989. Designed for engines equipped with a poppet relief valve in the block, this kit ensures proper temperature regulation and optimal cooling system performance.

Direct Replacement for OEM Part Number F528068. This kit provides a complete thermostat solution including the thermostat, gasket, and seal—everything needed for a professional installation.

• Complete kit with thermostat, gasket, and seal included
• 110-degree thermostat for optimal engine temperature control
• Designed for motors with poppet relief valve in the block

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

This complete thermostat kit includes:

• F528068 Thermostat - 110 Degree
• 517-31 Gasket
• F84504 Thermostat Seal (Qty: 1)

Installation Guide

1. Ensure the engine is completely cool before beginning any work. Disconnect the battery to prevent accidental starting.
2. Locate the thermostat housing on your Chrysler or Force outboard motor. It is typically positioned near the cylinder head.
3. Remove the thermostat housing cover by loosening the mounting bolts or screws. Carefully lift the cover away.
4. Remove the old thermostat and inspect the housing for corrosion or debris. Clean the mounting surfaces thoroughly with a scraper and solvent.
5. Remove and discard the old gasket and seal. Ensure no remnants remain on the mating surfaces.
6. Install the new F84504 thermostat seal into the designated groove or position in the housing.
7. Place the new F528068 110-degree thermostat into the housing, ensuring proper orientation (check valve direction if marked).
8. Position the new 517-31 gasket onto the thermostat housing, aligning all bolt holes correctly.
9. Reinstall the thermostat housing cover and hand-tighten the mounting bolts. Torque bolts to manufacturer specifications in a crisscross pattern.
10. Refill the cooling system with the appropriate coolant or water mixture as specified in your engine manual.
11. Reconnect the battery and start the engine. Allow it to reach operating temperature and check for leaks around the thermostat housing.
12. Monitor engine temperature during initial operation to confirm the thermostat is functioning correctly.

Troubleshooting & FAQ

Q: How do I know if this thermostat kit fits my Chrysler or Force outboard?
A: Check the compatibility table above to confirm your engine model, HP, and year match the listed applications. This kit is designed specifically for motors with a poppet relief valve in the block—verify your engine has this feature before ordering.

Q: What are the signs that my thermostat needs replacement?
A: Common symptoms include engine overheating, running too cool (below normal operating temperature), poor fuel economy, or steam/coolant leaks from the thermostat housing. If your engine temperature is erratic or outside the normal range, inspect the thermostat.

Q: How often should I replace the thermostat on my outboard motor?
A: Thermostats should be inspected annually and replaced every 2-3 years or as needed based on performance. If you notice temperature irregularities or the thermostat fails a boiling water test, replace it immediately regardless of age.

Q: Can I reuse the old gasket and seal when installing this thermostat?
A: No, always use the new gasket (517-31) and seal (F84504) included in this kit. Reusing old gaskets can result in coolant leaks and improper sealing, leading to engine overheating or damage.

Q: What is the difference between OEM and aftermarket thermostat kits?
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.