How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

1 4

Ingersoll Rand 39874425 SG Power Supply Board

$600.00 USD

Sale Sold out

ConditionSurplus - Untested MPN39874425 Stock #0526-02486

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

Shipping Estimate

Estimated package weight: 5.0 lbs

Select your state above for a shipping estimate.

U.S. shipping, securely packaged. Ships in 1-2 Days
Questions? Real support team available before purchase
Secure checkout with trusted payment methods

The Ingersoll Rand 39874425 is an SG Power Supply Board designed for use in Ingersoll Rand air compressor control systems, including SSR and MM series rotary screw compressors. The board carries PCB silkscreen designation 39873450 REV 06 with a copyright date of 1995, and the attached label identifies it as SG-POWER SUPPLY P/N 39874425 REV. 08. The original Ingersoll Rand Industrial Technologies box label confirms part number 39874425 and describes the item as IR SG POWER SUPPLY, QTY 1, labeled by Ingersoll Rand with reference 339990-155. This part number has been superseded by Ingersoll Rand replacement PN 49044886 and is listed as discontinued by the manufacturer. The board features through-hole and surface-mount construction on a green FR4 substrate, populated with ICs, electrolytic capacitors, inductors, MOV transient suppressors, and screw terminal blocks for field wiring connections. A POWER ON LED indicator and multiple connector headers are visible on the board surface. The unit is offered in its original manufacturer box with the board stored in an ESD protective anti-static bag. This board is a direct fit replacement for Ingersoll Rand SG-series compressor controller systems requiring the OEM power supply module. Cross-reference part numbers include 39873450 and 49044886.

Stock # 0526-02486

View full details

Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.