How do I confirm pilotpart430639 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

Engine Water Pump 60658 8353906 12529508 18-3583 18-3506 18-3599 9-42606 WP453M 985429 835390-6 856364-5 For Gm Marine Small Block V8

For GMC Water Pump

Water Pump 9-42606 for GMC

Q: What part numbers are associated with this Water Pump?

9-42606, 60658, WP453M, 985429, 18-3583, 18-3506, 18-3599, 835390-6, 856364-5, 12529508

OEM / REF: 9-42606SKU: pilotpart430639

GMC Water Pump 9-42606 is listed under Engine Spare Parts > Water Pump with catalog data including Part Number (MALLORY): 9-42606; Part Number (MERCURY): 60658; Part Number (MES): WP453M. Verify fitment for GMC Engine Spare Parts using the OEM number, mounting points, and photos of your existing part.

Stock: In stock
Condition: New
Fitment: GMC Engine Spare Parts
Category: Water Pump

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$134.35USD/EA

~~$17,647.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 16 – Aug 23
10	Aug 14 – Aug 21
50	Aug 12 – Aug 19

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.

Water Pump Description

This Water Pump is indexed for GM SMALL BLOCK V8 ENGINES WITH AND WITH OUT COMPOSITE TIMING COVERS. Compare reference number 9-42606 against the label on your existing GMC component before ordering.

Additional cross references on file: 60658, WP453M, 985429. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

9-4260660658WP453M 985429 18-3583 18-3506 18-3599 835390-6 856364-5 12529508

Applications

GM SMALL BLOCK V8 ENGINES WITH AND WITH OUT COMPOSITE TIMING COVERS

Specifications

Part Number (MALLORY)	9-42606
Part Number (MERCURY)	60658
Part Number (MES)	WP453M
Part Number (OMC)	985429
Part Number (SIERRA)	18-3583, 18-3506, 18-3599
Part Number (VOLVO)	835390-6, 856364-5
Part Number (OE)	12529508
Part Number	MALLORY: 9-42606 MERCURY: 60658 MES: WP453M OMC: 985429 SIERRA: 18-3583, 18-3506, 18-3599 VOLVO: 835390-6, 856364-5 OE: 12529508

Fitment Notes

Brand or application signal: GMC Engine Spare Parts
Product family: Water Pump
System category: Engine Spare Parts > Lubrication & Cooling Systems > Water Pump
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.