This page lists one interior part for the 1974 Checker Marathon: a Turn Signal Cam from STANDARD MOTOR PRODUCTS, matched to both the 4.1L 250cid L6 and the 5.7L 350cid V8.
On the 1974 Checker Marathon, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.
The 1974 Checker Marathon was sold with both the 4.1L 250cid L6 and the 5.7L 350cid V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The part number opens a page with every vehicle that part fits.
Turn Signal Cam
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 350cid V8 | TW83C | 🇺🇸 US 🇨🇦 CA | PlasticSwitch Functions: Turn Signal | View on Amazon |
This table covers the cams that cancel the turn signal.
This group shows a single part: STANDARD MOTOR PRODUCTS TW83C.
Buying Interior Parts for a 1974 Checker Marathon
On this vehicle, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.
- Match the engine first. Every interior part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the retainer clips with any panel removal — they are cheap insurance against squeaks.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Turn Signal Cam .
Frequently Asked Questions
How many interior parts fit the 1974 Checker Marathon?
This page lists one interior part for the 1974 Checker Marathon: a Turn Signal Cam from STANDARD MOTOR PRODUCTS, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8.
Do interior parts differ between 1974 Checker Marathon engines?
Yes. Every interior part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of interior problems on a 1974 Checker Marathon?
Common symptoms include a door handle that works only from outside, sagging headliner, a window switch that needs two presses, or seat adjusters that stick. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the retainer clips with any panel removal — they are cheap insurance against squeaks.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1974 Checker Marathon was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1974 Checker Marathon?
First match the engine — each row shows which engine(s) the part fits. Then interior plastics are often color- and trim-specific — check the notes column against your trim level before ordering. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1974 Checker Marathon
Interior Parts for Other Checker Marathon Years
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