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Caterpillar 241-8368 is the 24 V, 100 A sealed magnetic switch (heavy duty relay) with a finned body, two stud terminals and a two pin Deutsch style lead. It is used on Caterpillar 725 to 740B articulated trucks and machines with the C9.3, C13 and C15 engines. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Magnetic Switch Relay |
| Replaces | Caterpillar 241-8368 |
| Type | Sealed magnetic switch relay, finned body |
| Voltage | 24 V |
| Rating | 100 A |
| Connector | Two pin Deutsch style plug on a flying lead |
| Fits | Caterpillar 725; Caterpillar 725C; Caterpillar 730; Caterpillar 730C; Caterpillar 735; Caterpillar 735B; Caterpillar 740; Caterpillar 740B |
| Condition | New, aftermarket |
| Stat. HS-Code | 853641 |
Caterpillar machines
Check the part number on your old unit before ordering.
| Caterpillar Part No.(SPM Part No.) | Fits |
|---|---|
| 241-8368(SPM-HEP-3133) | Caterpillar 725, Caterpillar 725C, Caterpillar 730, Caterpillar 730C, Caterpillar 735, Caterpillar 735B, Caterpillar 740, Caterpillar 740B |
Function dead with good fuses
A starter, glow plug or fuel relay that has burned its contacts stops the circuit without blowing a fuse.
Clicking but no power
A relay that clicks but does not pass current has worn contacts and needs replacing.
Heat and vibration
Relays near the engine wear out from heat and vibration. Swap them during major services.
Fleet spares
Relays are cheap to keep on the van and quick to change on site.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (10 aftermarket sellers) | USD 45.99 to 52.58 | 7 Oct 2026 |
| YEM Parts | USD 87.91 | 7 Oct 2026 |
| SINOCMP | USD 89.00 | 7 Oct 2026 |
| Fab Heavy Parts | USD 100.69 | 7 Oct 2026 |
| Diselmart | USD 107.00 | 7 Oct 2026 |
| MyMROmarts | USD 107.99 | 7 Oct 2026 |
| WDPart | USD 116.00 | 7 Oct 2026 |
| Spare Part Mart | USD 36.79 | Today |
Our price of USD 36.79 is 20% to 68% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Caterpillar 241-8368. It is not made by or affiliated with Caterpillar; the Caterpillar part number is used only to show what it replaces.
It fits Caterpillar 725; Caterpillar 725C; Caterpillar 730; Caterpillar 730C; Caterpillar 735; Caterpillar 735B; Caterpillar 740; Caterpillar 740B. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It has the same mounting and electrical connector as the original. Check the plug and terminals match your old part, and test it before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
