Relay

Enhance your heavy equipment performance with the Case Construction Relay #51661130. Designed for durability and reliability, this essential component ensures optimal functionality in your machinery, keeping your operations running smoothly and efficiently on any job site.

Compatible equipment

This part fits WHEEL LOADER - TIER 4B (NA), TELEHANDLER 133HP 6M - TIER 4B, TELEHANDLER 145HP 6M - TIER 4B, TELEHANDLER 133HP 7M - TIER 4B, TELEHANDLER 145HP 7M - TIER 4B, TELEHANDLER 133HP 9M - TIER 4B, AFS CONNECT - T4B CVT (NA/ROW), AFS CONNECT - T4B PST (NA/ROW), AFS CONNECT - WHEEL T4B CVT (NA/ROW), AFS CONNECT - WHEEL T4B PST (NA/ROW), AFS CONNECT - ROWTRAC T4B CVT (NA/ROW), AFS CONNECT - ROWTRAC T4B PST (NA/ROW), AFS CONNECT - QUADTRAC T4B CVT (NA), AFS CONNECT - QUADTRAC T4B PST (NA), AFS CONNECT - QUADTRAC SCRAPER T4B PST (NA), AFS CONNECT - QUADTRAC T4B SCRAPER CVT (NA), AFS CONNECT - HD WHEEL T4B CVT (NA), AFS CONNECT - HD WHEEL T4B PST (NA), AFS CONNECT - ROWTRAC T4B CVT (NA), AFS CONNECT - ROWTRAC T4B PST (NA), AFS CONNECT - SCRAPER WHEEL - T4B PST (NA), AFS CONNECT - SCRAPER WHEEL T4B CVT (NA), AFS CONNECT - SCRAPER WHEEL T4B PST (NA), PLM INTELLIGENCE - WHEEL T4B CVT (NA/ROW), PLM INTELLIGENCE - WHEEL T4B PST (NA/ROW), PLM INTELLIGENCE - SMARTTRAX T4B CVT (NA/ROW), PLM INTELLIGENCE - SMARTTRAX T4B PST (NA/ROW), PLM INTELLIGENCE - HD WHEEL T4B CVT (NA), PLM INTELLIGENCE - HD WHEEL T4B PST (NA), PLM INTELLIGENCE - SCRAPER WHEEL T4B CVT (NA), PLM INTELLIGENCE - SCRAPER WHEEL T4B PST (NA), PLM INTELLIGENCE - TRACK READY T4B CVT (NA), PLM INTELLIGENCE - TRACK READY T4B PST (NA), TELEHANDLER 133HP 6M MY19 - TIER 4B, TELEHANDLER 133HP 7M MY19 - TIER 4B, TELEHANDLER 145HP 7M MY19 - TIER 4B, TELEHANDLER 133HP 9M MY19 - TIER 4B including models 1021G, 1121G, 521G, 621G, 721G, 821G, 921G, FARMLIFT 632, FARMLIFT 635, FARMLIFT 735, FARMLIFT 742, FARMLIFT 935, LM6.32, LM6.35, LM7.35, LM7.42, LM9.35, MAGNUM 180, MAGNUM 200, MAGNUM 220, MAGNUM 240, MAGNUM 250, MAGNUM 280, MAGNUM 310, MAGNUM 340.

Frequently asked questions

What is the part number?

The manufacturer part number is 51661130.

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.