How do I confirm pilotpart416539 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

4D105-3 S4D105 Overhaul Rebuild Kit For Komatsu Engine D45A D37P-1 D40A D40P-1

For Komatsu Overhaul Kits

Overhaul Kits S4D105 for Komatsu

OEM / REF: S4D105SKU: pilotpart416539

4D105-3 S4D105 Overhaul Rebuild Kit For Komatsu Engine D45A D37P-1 D40A D40P-1 is a Overhaul Kits replacement part for Komatsu Engine Spare Parts, categorized under Engine Spare Parts > Overhaul Kits. Use OEM part number S4D105 and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Komatsu Engine Spare Parts
Category: Overhaul Kits

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$835.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 15 – Aug 22
10	Aug 13 – Aug 20
50	Aug 11 – Aug 18

Estimates from today; confirm exact lead time before payment.

Quantity

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

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

Overhaul Kits Description

This Overhaul Kits is indexed for Komatsu s: For Komatsu Engine D45A D37P-1 D40A D40P-1 Item Included: 1set Full gasekt kit 6pcs Liner Cylinder 6pcs Piston,STD size 6pcs Piston Pin 12pcs Pin Clips 6 Intake Valves 6 Exhaust Valves 12 Valve Guides 6 Intake Valves Seats 6 Exhaust Valves Seats 6set Ring set for 6pistons.STD size 1set Crankshaft bearing 1set Connect Rod Bearing 1Set Thrust washer. Compare reference number S4D105 against the label on your existing Komatsu component before ordering.

Before checkout, compare OEM part number S4D105, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

S4D105

Applications

Komatsu s: For Komatsu Engine D45A D37P-1 D40A D40P-1 Item Included: 1set Full gasekt kit 6pcs Liner Cylinder 6pcs Piston,STD size 6pcs Piston Pin 12pcs Pin Clips 6 Intake Valves 6 Exhaust Valves 12 Valve Guides 6 Intake Valves Seats 6 Exhaust Valves Seats 6set Ring set for 6pistons.STD size 1set Crankshaft bearing 1set Connect Rod Bearing 1Set Thrust washer

Fitment Notes

Brand or application signal: Komatsu Engine Spare Parts
Product family: Overhaul Kits
System category: Engine Spare Parts > Cylinder Components > Overhaul Kits
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.