Marine starters for Ford, GM, Indmar, and PCM GT40 boats
Starter searches should land on application guidance, not a generic shop grid. Use this page to match Ford, PCM GT40, ProBoss, GM, and Indmar starter paths before opening the product page.
Intermediate / 1-2 hrs
Inboard owners replacing a marine starter
Compare the options
| Option | Best for | Install | Notes |
|---|---|---|---|
| Ford 302/351 starter | PCM GT40, Ford 302, Ford 351, and ProBoss applications | Application check | Confirm left-hand/right-hand rotation, mounting position, and engine family before ordering. |
| GM 305/350/454 starter | GM small-block and big-block marine applications | Application check | Match rotation and mounting to the existing starter and engine setup. |
| Indmar starter | Indmar top-mount, bottom-mount, LS1, LQ9, and 6.0L applications | Application check | Use the part number and photos of the current starter to reduce mis-orders. |
Why marine starters need a fitment check
Marine starter purchases are not just a brand search. Rotation direction, mounting position, engine family, and the existing part number all matter. A Ford marine starter, PCM GT40 starter, GM starter, and Indmar starter can look similar in search results while fitting very different applications.
- Check engine family: Ford 302/351, PCM GT40, ProBoss, GM 305/350/454, or Indmar LS/LQ.
- Confirm starter rotation before ordering.
- Match top-mount, bottom-mount, left-hand, or right-hand layout to the starter already on the boat.
Best path for Ford and PCM GT40 searches
For Ford marine starter and PCM GT40 starter searches, start with the 302/351 and ProBoss product paths. The goal is not to force every buyer into one SKU. It is to help them choose the correct starter style before checkout.
Best path for GM and Indmar searches
For GM and Indmar starter searches, use the engine family first, then confirm the part number and mounting style. The GM LH, GM RH clockwise, Indmar top-mount, Indmar bottom-mount, and LS/LQ listings cover different applications.
What to send support before buying
If you are not sure which starter fits, send the engine make, year, existing starter photos, part number, and rotation or mounting notes before ordering. That is faster than buying a starter that spins the wrong direction or mounts differently.
Common questions
How do I choose the right marine starter?
Match the engine family, starter rotation, mounting style, and existing part number before ordering. Photos of the current starter help confirm the path.
Are Ford marine starters and PCM GT40 starters the same?
Not always. PCM GT40, Ford 302, Ford 351, and ProBoss applications can use different starter paths, so confirm the exact application before checkout.
What is the difference between left-hand and right-hand starter listings?
The listing direction refers to the starter/application path and must match the boat's existing setup. If the rotation is unclear, contact support before ordering.
Can GT40Marine help confirm a starter before I buy?
Yes. Send the engine information, current starter photos, part number, and any rotation or mounting notes so support can help narrow the correct listing.