Relay

Enhance your heavy equipment performance with the Case Construction Relay #84540512. Designed for durability and reliability, this essential component ensures optimal functionality in your machinery, keeping your operations running smoothly and efficiently. Perfect for construction professionals seeking quality and performance.

Compatible equipment

This part fits WHEEL LOADER - TIER 4 (NA), WHEEL LOADER - TIER 4B (NA), WHEEL LOADER TIER 4 (NA), CRAWLER DOZER - TIER 4A, CRAWLER DOZER - TIER 4B, SERIES 3 CRAWLER TIER 3, CRAWLER DOZER TIER 2, WHEEL LOADER - TIER 4 / TIER 2 (NA), 4WD MOTOR GRADER (LIVERY) - TIER 4, 4WD MOTOR GRADER MY20 - STAGE V, AWD MOTOR GRADER (LIVERY) - TIER 4, AWD MOTOR GRADER MY20 - STAGE V, CRAWLER DOZER, CRAWLER EXCAVATOR - TIER 3 (ROPS CAB) ASN NBDA17800, CRAWLER EXCAVATOR TIER 3 (NA) - N7DA16301 -, CRAWLER EXCAVATOR (NA) - ASN N6DA21215, CRAWLER EXCAVATOR - TIER 3 (NA) - ASN N7DA21001, CRAWLER EXCAVATOR - TIER 3 (ROPS CAB) ASN NBDA21800, N45ENTVP21.00 A002, N45ENTVP23.00 A002, N67ENTVP20.00A007, N67ENTVP22.00A002, N67ENTVP27.00A002, WHEEL LOADER TIER 2 (INT) including models 1021F, 1021G, 1121F, 1121G, 1150M LT, 1150M WT, 1150M WT/LGP, 1650M LGP PAT, 1650M WT/LGP, 1650M XLT, 1650M XLT BD, 1650M XLT PAT, 1850K, 1850K TIER 2, 2050M LGP BD, 2050M LGP PAT, 2050M LT, 2050M LT BD, 2050M LT PAT, 2050M WT/LGP, 2050M XLT BD, 2050M XLT PAT, 521F, 521G, 621F.

Frequently asked questions

What is the part number?

The manufacturer part number is 84540512.

Is this a genuine OEM part?

Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.

Will this fit my machine?

See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.

Where does this ship from?

Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.