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Komatsu 6261-81-2700 is the intake manifold boost pressure sensor (two bolt flange mount, integral connector). It is used on Komatsu PC400LC-8, WA480-6 and HM300-2 (SAA6D125E, 6D140E and 6D170E 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 | Boost Pressure Sensor |
| Replaces | Komatsu 6261-81-2700 |
| Type | Boost (intake air) pressure sensor, two bolt flange, integral connector |
| Fits | Komatsu PC400LC-8; Komatsu WA480-6; Komatsu HM300-2 |
| Condition | New, aftermarket |
| Stat. HS-Code | 903289 |
Komatsu machines
Check the part number on your old unit before ordering.
| Komatsu Part No.(SPM Part No.) | Fits |
|---|---|
| 6261-81-2700(SPM-HEP-3027) | Komatsu PC400LC-8, Komatsu WA480-6, Komatsu HM300-2 |
Warning light or fault code
A failed pressure sensor gives a false low or high reading, a warning on the monitor or a fault code. Check the plug and wiring first, then swap the sensor.
Slow or weak hydraulics
The controller uses the pump pressure signal to manage pump output and engine load. A sensor that reads wrong can leave the machine slow, weak or stalling under load.
Corroded or damaged plug
Sensors on the pump and valve block take water, oil and pressure washing. A corroded connector or cracked body is a reason to replace it.
Fitting tips
Relieve the hydraulic pressure before removing the old sensor, fit a new O ring lightly oiled, tighten to the machine maker's torque and check for leaks.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (12 aftermarket sellers) | USD 32.82 to 59.96 | 6 Oct 2026 |
| Fab Heavy Parts | USD 173.60 | 6 Oct 2026 |
| WDPart | USD 208.50 | 6 Oct 2026 |
| MyMROmarts | USD 243.16 | 6 Oct 2026 |
| Spare Part Mart | USD 26.26 | Today |
Our price of USD 26.26 is 20% to 89% 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 6261-81-2700. It is not made by or affiliated with Komatsu; the Komatsu part number is used only to show what it replaces.
It fits Komatsu PC400LC-8; Komatsu WA480-6; Komatsu HM300-2. 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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