How do I confirm pilotpart068315-6050152579248 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

Overhaul Rebuild Kit for Caterpillar 303.5D Excavator With S3Q2 Engine

For Caterpillar Overhaul Kits

Overhaul Kits 303.5D for Caterpillar

OEM / REF: 303.5DSKU: pilotpart068315-6050152579248

Overhaul Rebuild Kit for Caterpillar 303.5D Excavator With S3Q2 Engine is a Overhaul Kits replacement part for Caterpillar Engine Spare Parts, categorized under Engine Spare Parts > Overhaul Kits. Use OEM part number 303.5D and confirm machine model, engine model, and serial details before checkout.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$543.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 21 – Oct 28
10	Oct 19 – Oct 26
50	Oct 17 – Oct 24

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 Caterpillar s: for Caterpillar 303.5D Excavator With S3Q2 Engine Item Included: - 1set Full gasekt kit - 3pcs Liner Cylinder/Sleeve - 3pcs Piston,STD size - 3pcs Piston Pin - 3set Ring set for 3pistons.STD size - 6pcs Pin Clips - 6pcs Valves 3pcs Intake Valves + 3pcs Exhaust Valves - 6pcs Valve Guides - 6pcs Valves Seats ( 3pcs Intake Valves Seats+ 3pcs Exhaust Valves Seats) - 1set Crankshaft bearing STD size - 1set Connect Rod Bearing STD size - 1Set Crankshaft Thrust washer. Compare reference number 303.5D against the label on your existing Caterpillar component before ordering.

Additional cross references on file: S3Q2. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

303.5DS3Q2

Applications

Caterpillar s: for Caterpillar 303.5D Excavator With S3Q2 Engine Item Included: - 1set Full gasekt kit - 3pcs Liner Cylinder/Sleeve - 3pcs Piston,STD size - 3pcs Piston Pin - 3set Ring set for 3pistons.STD size - 6pcs Pin Clips - 6pcs Valves 3pcs Intake Valves + 3pcs Exhaust Valves - 6pcs Valve Guides - 6pcs Valves Seats ( 3pcs Intake Valves Seats+ 3pcs Exhaust Valves Seats) - 1set Crankshaft bearing STD size - 1set Connect Rod Bearing STD size - 1Set Crankshaft Thrust washer

Fitment Notes

Brand or application signal: Caterpillar 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.