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SPM-HEP-4624 is the injector wiring harness under the valve cover: a sleeved loom with a flanged multi pin bulkhead plug and a two pin plug for each of the six injectors, supplied with cable ties. It is used on Caterpillar C-9 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.
It replaces Caterpillar 188-9865, Caterpillar 215-3249 and Caterpillar 419-0841.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Fuel Injector Wiring Harness |
| Replaces | Caterpillar 188-9865 |
| Engine | Caterpillar C-9 |
| Injector plugs | 6 |
| Cross references | Caterpillar 215-3249, Caterpillar 419-0841 |
| Fits | Caterpillar C-9 engines in 330C, 330D and 336D excavators and 627G, 637D, 637E and 637G wheel tractor scrapers |
| Condition | New, aftermarket |
| Stat. HS-Code | 854430 |
| Country of Manufacture | China |
Caterpillar machines
Check the part number on your old unit before ordering.
| Caterpillar Part No.(SPM Part No.) | Fits |
|---|---|
| 188-9865(SPM-HEP-4624) | Caterpillar C-9 engines in 330C, 330D and 336D excavators and 627G, 637D, 637E and 637G wheel tractor scrapers |
| Brand | Part No. |
|---|---|
| Caterpillar | 188-9865 |
| Caterpillar | 215-3249 |
| Caterpillar | 419-0841 |
All of these numbers are the same part.
Intermittent faults and warning codes
Chafed, crushed or corroded wires in an engine or main harness give faults that come and go: sensor codes, a rough running engine or a machine that will not start. When several sensors fault at once, look at the harness.
Heat and rodent damage
Harnesses next to the exhaust and turbo go brittle and crack, and rodents chew the insulation on machines that stand. A new harness is quicker than repairing many wires.
Burnt or corroded plugs
Green corrosion or melted pins in the plugs cause high resistance and false readings. Replacing the harness renews every plug at once.
Fitting tips
Disconnect the batteries first, photograph or label every plug before removing the old harness, route the new one along the same clips and away from hot and moving parts, then clear the fault codes and test.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (8 aftermarket sellers) | USD 62.48 to 72.71 | 31 Oct 2026 |
| Buy Machinery | USD 71.99 | 31 Oct 2026 |
| Yem Parts | USD 81.78 | 31 Oct 2026 |
| KuduParts | USD 88.00 | 31 Oct 2026 |
| WDPart | USD 89.00 | 31 Oct 2026 |
| Fab Heavy | USD 103.67 | 31 Oct 2026 |
| Diselmart | USD 106.00 | 31 Oct 2026 |
| SINOCMP | USD 119.00 | 31 Oct 2026 |
| MyMROmarts | USD 151.54 | 31 Oct 2026 |
| Spare Part Mart | USD 50.67 | Today |
Our price of USD 50.67 is 19% to 67% 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.
Yes, it is a direct replacement for the Caterpillar 188-9865 with the same fitting.
There is no fixed interval. It is changed when it fails, and many fail from water in the plug or chafed wiring rather than wear.
A fault code for this circuit, readings that jump or stay fixed, or a part that does not respond with power at the plug.
Read the fault codes, then check the plug and wiring for corrosion or a broken wire. A wiring fault reads the same as a failed wiring harness.
Usually. Clear them after fitting and run the machine, so old codes are not mistaken for a new fault.
No. It is an aftermarket wiring harness made to replace the Caterpillar 188-9865. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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