Pin Lock

Enhance your heavy equipment’s performance with the Case Construction Pin Lock #378704A1. Designed for durability and precision, this essential component ensures secure attachment and optimal functionality, making it a must-have for any construction professional.

Compatible equipment

This part fits CASE AGRI-KING TRACTOR (PRIOR TO S/N 8736001), CASE AGRI-KING TRACTOR (S/N 8736001 & AFTER), CASE AGRI-KING TRACTOR (PRIOR TO S/N 8727601), CASE AGRI-KING TRACTOR (S/N 8727601 & AFTER), CASE TRACTION KING DIESEL TRACTOR, CASE AGRI-KING DIESEL TRACTOR, CASE AGRI-KING TRACTOR (''''SPIRIT OF ''76'''' OPTION), CASE DIESEL TRACTOR (PRIOR TO S/N 17895000), CASE DIESEL TRACTOR (S/N 17895000 THRU 002 & UP), RIGID GRAIN HEAD, FLEXIBLE GRAIN HEAD, 30F - FLEXIBLE GRAIN HEAD (BR), COMBINE HEADER, GRAIN HEADERS, CASE DIESEL TRACTOR, CASE DIESEL TRACTOR (PRIOR TO S/N 17897500), CASE DIESEL TRACTOR (S/N 17897500 TO 17897505 17897510 & AFTER, CASE IH AXIAL-FLOW COMBINE (NA) BTW HAJ292001&HAJ300000, CASE IH AXIAL-FLOW COMBINE (NA) BTW HAJ292001 & HAJ300000, CASE IH AXIAL-FLOW COMBINE (RU) ASN HAJ300001, CASE TRACTION KING TRACTOR (AFTER S/N 8762940), CASE TRACTION KING TRACTOR (BEFORE S/N 8762940), AXIAL-FLOW COMBINE (NA) ASN HAJ0300001, CASE IH AXIAL-FLOW COMBINE (NA) ASN HAJ300001, CASE TRACTION KING TRACTOR, CASE TRACTOR, CASE IH TRACTOR, SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005, SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006, SERIES 3 CRAWLER TIER 2 - 06/20/2006 - 12/31/2008, CRAWLER DOZER TIER 3 (HYDRO), CRAWLER DOZER - TIER 4B, CASE IH MAGNUM TRACTOR (NORTH AMERICA), CASE IH MAGNUM TRACTOR, CRAWLER DOZER TIER 3, CRAWLER DOZER - TIER 4A, COMPACT TRACK LOADER - TIER 4F - NA, MINI CRAWLER EXCAVATOR CAB - TIER 4, MINI CRAWLER EXCAVATOR CANOPY - TIER 4, COMPACT CRAWLER EXCAVATOR TIER 4 (NA) - ASN PV13-33453 & NATN41584, MINI EXCAVATOR - TIER 4B (NA) - ASN PW16-80001 (NETN61000), MINI CRAWLER EXCAVATOR - TIER 4B - ASN PX17-40001 (NETN66000) (NA), MINI CRAWLER EXCAVATOR - TIER 4 - ASN PS04-10001 (NETN55001) (NA), MINI CRAWLER EXCAVATOR CAB, CRAWLER DOZER - NA, CRAWLER DOZER, COMPACT CRAWLER EXCAVATOR TIER 4 (NA) - ASN PV13-33453- (NATN41583-), SKID STEER LOADER - TIER 4F - NA, AFS CONNECT - T4B CVT (NA/ROW), AFS CONNECT - T4B PST (NA/ROW), SMALL FRAME TRACTOR TIER 4 (NA) - ZARH06086 AND AFTER, TRACTOR (NA), TRACTOR - TIER 4B CVT (NA), TRACTOR - TIER 4B PST (NA), TRACTOR - TIER 4A, TRACTOR - TIER 4A CVT, AFS CONNECT - WHEEL T4B CVT (NA/ROW), AFS CONNECT - WHEEL T4B PST (NA/ROW), TRACTOR - TIER 4B CVT (ROW), TRACTOR - TIER 4B PST (ROW), TRACTOR (EMERGING MARKET), TRACTOR - TIER 3 PST (CHINA), AFS CONNECT - ROWTRAC T4B CVT (NA/ROW), AFS CONNECT - ROWTRAC T4B PST (NA/ROW), ROWTRAC TRACTOR - TIER 4B CVT, ROWTRAC TRACTOR - TIER 4B PST, CASE IH MAGNUM TRACTOR (P.I.N. JJA0105000 & AFTER), CASE IH MAGNUM TRACTOR (PRIOR TO P.I.N. JJA0105000), CASE IH MAGNUM TRACTOR NA, SKID STEER LOADER, SKID STEER LOADER - NRC, SKID STEER LOADER - TIER 4B, SKID STEER LOADER - TIER 4A, 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), SMARTTRAX TRACTOR - TIER 4B CVT, SMARTTRAX TRACTOR - TIER 4B PST, TRACTOR (NORTH AMERICA), COMPACT TRACK LOADER, COMPACT TRACK LOADER - TIER 4B, COMPACT TRACK LOADER - NRC, COMPACT TRACK LOADER - TIER 4A including models 1270, 1370, 1470, 1570, '1570, 1896, 2010, 2020, 2030, 2040, 2050, 2090, 2094, 2096, 2290, 2294, 2377, 2388, 2390, 2394, 2470, 2577, 2588, 2590, 2594.

Frequently asked questions

What is the part number?

The manufacturer part number is 378704A1.

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.

Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.

30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.