How do I confirm pilotpart300755-9009698898168 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

For Komatsu Main & Relief Valve

Main & Relief Valve 421-43-27460 for Komatsu

Q: What part numbers are associated with this Main & Relief Valve?

421-43-27460, WA380-5L, WA380-5-SN, WA380-5-TN, WA400-5, WA400-5L, WA420-3, WA430-5, WA430-5-SN, WA450-3, WA450-3A, WA450-3A-S

OEM / REF: 421-43-27460SKU: pilotpart300755-9009698898168

Hydraulic Pump Main Relief Valve 421-43-27460 for Komatsu Loader WA380 WA900 WA420 WA800 Compactor WF550 WF650T Dozer WD500 WD600 is a Main & Relief Valve replacement part for Komatsu Hydraulic & Pneumatic Parts, categorized under Hydraulic & Pneumatic Parts > Main & Relief Valve. Use OEM part number 421-43-27460 an...

Stock: In stock
Condition: New
Fitment: Komatsu Hydraulic & Pneumatic Parts
Category: Main & Relief Valve

Fitment support before you order
Worldwide delivery options

Quote required

Price on requestRFQ

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 13 – Aug 20
10	Aug 11 – Aug 18
50	Aug 9 – Aug 16

Estimates from today; confirm exact lead time before payment.

Quantity

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This part requires a quote. Add it to your quote list or send machine details for pricing and lead time.

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Lead times can vary by freight route and customs. Contact support for expedited shipping.

Main & Relief Valve Description

This Main & Relief Valve is indexed for Komatsu s: Fit For Komatsu Loader: WA380-5, WA380-5L, WA380-5-SN, WA380-5-TN, WA400-5, WA400-5L, WA420-3, WA430-5, WA430-5-SN, WA450-3, WA450-3A, WA450-3A-S, WA450-3A-TN, WA450-3-H, WA450-3L, WA450-3MC, WA450-3-X, WA450-5L, WA450L-3, WA470-3, WA470-5, WA470-DZ-3, WA480-5, WA480-5L, WA500-3, WA500-3H, WA500-3L, WA500-3LK, WA500-6, WA500-6R, WA600-3, WA600-3D, WA600-3LK, WA600-6, WA600-6R, WA700-3, WA700-3L, WA800-3, WA800-3E0, WA800-3LC, WA800L-3, WA900-3, WA900-3E0, WA900-3LC, WA900L-3 Fit For Komatsu Dozer: WD500-3, WD600-3, WD600-6, WD900-3 Fit For Komatsu Compactor: WF450-3, WF450T-3, WF550-3D, WF550T-3, WF550T-3A, WF550T-3D, WF650T-3. Compare reference number 421-43-27460 against the label on your existing Komatsu component before ordering.

Additional cross references on file: WA380-5L, WA380-5-SN, WA380-5-TN. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

421-43-27460 WA380-5L WA380-5-SN WA380-5-TN WA400-5 WA400-5L WA420-3 WA430-5 WA430-5-SN WA450-3 WA450-3A WA450-3A-S

Applications

Komatsu s: Fit For Komatsu Loader: WA380-5, WA380-5L, WA380-5-SN, WA380-5-TN, WA400-5, WA400-5L, WA420-3, WA430-5, WA430-5-SN, WA450-3, WA450-3A, WA450-3A-S, WA450-3A-TN, WA450-3-H, WA450-3L, WA450-3MC, WA450-3-X, WA450-5L, WA450L-3, WA470-3, WA470-5, WA470-DZ-3, WA480-5, WA480-5L, WA500-3, WA500-3H, WA500-3L, WA500-3LK, WA500-6, WA500-6R, WA600-3, WA600-3D, WA600-3LK, WA600-6, WA600-6R, WA700-3, WA700-3L, WA800-3, WA800-3E0, WA800-3LC, WA800L-3, WA900-3, WA900-3E0, WA900-3LC, WA900L-3 Fit For Komatsu Dozer: WD500-3, WD600-3, WD600-6, WD900-3 Fit For Komatsu Compactor: WF450-3, WF450T-3, WF550-3D, WF550T-3, WF550T-3A, WF550T-3D, WF650T-3

Fitment Notes

Brand or application signal: Komatsu Hydraulic & Pneumatic Parts
Product family: Main & Relief Valve
System category: Hydraulic & Pneumatic Parts > Hydraulic & Pneumatic Valves > Main & Relief Valve
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.