Main & Relief Valve 305-5291 for Caterpillar 450E

OEM / REF: 305-5291SKU: pilotpart442532

Common Rail Valve 416-7101 305-5291 for Caterpillar 450E C4.4 C6.6 311D LRR 312D L 314D LCR 320D 312D 320D GC 319D L 315D L 314D CR 318D L 320D L 319D LN 323D L 313D is a Main & Relief Valve replacement part indexed for Caterpillar 450E and Caterpillar C4.4, with 3 application records on file. Match OEM part number...

Stock
In stock
Condition
New
Fitment
Caterpillar Hydraulic & Pneumatic Parts
  • Fitment support before you order
  • Worldwide delivery options

Main & Relief Valve Description

This Main & Relief Valve is indexed for Caterpillar 450E; Caterpillar C4.4; Caterpillar C6.6; Caterpillar 311D LRR. Compare reference number 305-5291 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 416-7101. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Applications

  • Caterpillar 450E
  • Caterpillar C4.4
  • Caterpillar C6.6
  • Caterpillar 311D LRR
  • Caterpillar 312D L
  • Caterpillar 313D
  • Caterpillar 314D LCR
  • Caterpillar 315D CR
  • Caterpillar 318D LN
  • Caterpillar 319D
  • Caterpillar 320D GC
  • Caterpillar 323D
  • Caterpillar C4.4
  • Caterpillar C6.6
  • Caterpillar 953D
  • Caterpillar D5R LGP
  • Caterpillar D6K XL
  • Caterpillar D6N
  • Caterpillar 2470C
  • Caterpillar 553C
  • Caterpillar 938H
  • Caterpillar 924H
  • Caterpillar 924HZ
  • Caterpillar 928H
  • Caterpillar 928HZ
  • Caterpillar 930H
  • Caterpillar 938H
  • Caterpillar M313D
  • Caterpillar M315D
  • Caterpillar M315D2
  • Caterpillar M316D
  • Caterpillar M318D
  • Caterpillar M322D MH

Specifications

Outlet Connection Size1.9 Inches
Part Number (Caterpillar)305-5291, 3055291, 416-7101, 4167101
Part NumberCaterpillar: 305-5291, 3055291, 416-7101, 4167101

Fitment Notes

Brand or application signal
Caterpillar 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.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.