Size Chart
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JLT JLTRSC-FM9904-2 is a radiator stays for the listed vehicle applications. Correct selection depends on the exact year, make, model, engine, induction configuration, and tuning requirements stated for this part number.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1999-2004 | Ford | Mustang | Verify engine, trim, and tuning notes |
Specifications
| Brand | JLT |
|---|---|
| Manufacturer Part Number | JLTRSC-FM9904-2 |
| Product Type | Radiator Stays |
| Fitment Type | Vehicle Specific |
| Condition | New |
| Official Catalog Status | Current S&B-owned JLT catalog record |
What's Included
One new JLT radiator stays identified by manufacturer part number JLTRSC-FM9904-2. Filters, couplers, clamps, heat shields, sensors, hardware, and covers are included only when expressly listed for this exact product.
About JLT
JLT develops performance intake systems, air filters, filter wraps, induction components, and under-hood accessories. JLT products are now supported through S&B Filters.
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Frequently Asked Questions
Will JLT JLTRSC-FM9904-2 fit my 1999-2004 Ford Mustang?
That year, make, and model range is listed. Confirm the engine, trim, tuning requirement, induction hardware, and all application notes before ordering.
Does this radiator stays require an ECU tune?
Tuning requirements vary by exact JLT part number and vehicle application. Follow the current product instructions and do not assume a tune is optional when the listing identifies one as required.
How should the intake system be checked after installation?
Confirm every clamp, coupler, sensor, vacuum line, breather connection, heat shield, and filter is secure. Check for leaks or contact before operating the vehicle under load.
Installation Instructions
Use the current JLT instructions for part number JLTRSC-FM9904-2. Disconnect the battery when required, transfer sensors and lines exactly as directed, secure every coupler and clamp, verify filter and hood clearance, check for intake leaks, and complete any required tuning before full-load operation.
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