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SPM-HEP-4122 is the single terminal oil pressure switch with a steel hex body and a spade connector. It is used on Komatsu excavators and loaders. 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 Komatsu 08073-10505 and Komatsu 6732-81-3140.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Oil Pressure Switch |
| Replaces | Komatsu 08073-10505 |
| Switch type | Oil pressure switch, single terminal |
| Terminal | Spade connector |
| Cross references | Komatsu 6732-81-3140 |
| Fits | Komatsu PC200-6 and PC220-6 excavators and WA120 wheel loaders with the 4D102 and 6D102 engines, and Hitachi EX200-5 excavators |
| Condition | New, aftermarket |
| Stat. HS-Code | 853650 |
| Country of Manufacture | China |
Komatsu machines
Check the part number on your old unit before ordering.
| Komatsu Part No.(SPM Part No.) | Fits |
|---|---|
| 08073-10505(SPM-HEP-4122) | Komatsu PC200-6 and PC220-6 excavators and WA120 wheel loaders with the 4D102 and 6D102 engines, and Hitachi EX200-5 excavators |
| Brand | Part No. |
|---|---|
| Komatsu | 08073-10505 |
| Komatsu | 6732-81-3140 |
All of these numbers are the same part.
Low oil pressure warning
If the warning comes on while the oil level and a mechanical gauge reading are good, the switch is the usual cause.
Warning light stays off
A switch that never closes leaves you with no warning at all. Test it with the engine off: the light should come on with the key.
Fitting tips
Fit with the engine off, use thread sealant suited to oil, push the spade connector on firmly and check the light goes out after starting.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| FridayParts | USD 15.75 | 23 Oct 2026 |
| Disen Parts | USD 21.50 | 23 Oct 2026 |
| SINOCMP | USD 31.00 | 23 Oct 2026 |
| eBay (5 aftermarket sellers) | USD 31.30 to 45.58 | 25 Oct 2026 |
| Spare Part Mart | USD 12.60 | Today |
Our price of USD 12.60 is 20% to 72% 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 Komatsu 08073-10505. It is not made by or affiliated with Komatsu; the Komatsu part number is used only to show what it replaces.
It fits Komatsu PC200-6 and PC220-6 excavators and WA120 wheel loaders with the 4D102 and 6D102 engines, and Hitachi EX200-5 excavators. 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.
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