How do I confirm pilotpart051859-8592086434040 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

Exhaust Manifold 3967751 for Cummins Engine 4B3.9 QSB5.9 CM850 ISB

For Cummins Manifold

Manifold G5.9 for Cummins

OEM / REF: G5.9SKU: pilotpart051859-8592086434040

Exhaust Manifold 3967751 for Cummins Engine 4B3.9 QSB5.9 CM850 ISB is a Manifold replacement part for Cummins Engine Spare Parts, categorized under Engine Spare Parts > Manifold. Use OEM part number G5.9 and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Cummins Engine Spare Parts
Category: Manifold

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$193.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 22 – Aug 29
10	Aug 20 – Aug 27
50	Aug 18 – Aug 25

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.

Manifold Description

This Manifold is indexed for Cummins s : Engine: (Just for reference) 4B3.9, QSF2.8 CM2880 F114, QSB6.7 M CM2250, ISF3.8 CM2220 F103, QSB4.5 CM2150 B108, QSB6.7 CM2250 EC, ISBE CM2150, ISD4.5 CM2150, ISB5.9G CM2180, QSB6.7 CM2350 B130, ISF3.8 CM2220 F116, G5.9, QSB4.5 CM2250 B131, QSB3.9 30 CM550, ISBE CM800, QSB7 CM2880 B117, QSB5.9 30 CM550, ISF2.8 CM2220 F101, QSB6.7 CM2150 B109, G3.9, ISF3.8 CM2220 AN, ISB6.7 CM2250, B4.5 RGT, QSF2.8 CM2880 F108, QSG12 CM2350 G110, ISG12 CM2880 G107, ISG11 CM2880 G108, ISG12 CM2880 G109, QSB6.7. Compare reference number G5.9 against the label on your existing Cummins component before ordering.

Additional cross references on file: G3.9, QSB6.7, 3967751. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

G5.9G3.9QSB6.7 3967751

Applications

Cummins s : Engine: (Just for reference) 4B3.9, QSF2.8 CM2880 F114, QSB6.7 M CM2250, ISF3.8 CM2220 F103, QSB4.5 CM2150 B108, QSB6.7 CM2250 EC, ISBE CM2150, ISD4.5 CM2150, ISB5.9G CM2180, QSB6.7 CM2350 B130, ISF3.8 CM2220 F116, G5.9, QSB4.5 CM2250 B131, QSB3.9 30 CM550, ISBE CM800, QSB7 CM2880 B117, QSB5.9 30 CM550, ISF2.8 CM2220 F101, QSB6.7 CM2150 B109, G3.9, ISF3.8 CM2220 AN, ISB6.7 CM2250, B4.5 RGT, QSF2.8 CM2880 F108, QSG12 CM2350 G110, ISG12 CM2880 G107, ISG11 CM2880 G108, ISG12 CM2880 G109, QSB6.7

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Manifold
System category: Engine Spare Parts > Emission & Exhaust System > Manifold
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.