{"id":836,"date":"2026-06-18T03:06:05","date_gmt":"2026-06-18T03:06:05","guid":{"rendered":"https:\/\/metalite.net\/?post_type=product&p=836"},"modified":"2026-06-18T03:22:52","modified_gmt":"2026-06-18T03:22:52","slug":"144031a1-sprocket-7-tooth-ca550-replacement","status":"publish","type":"product","link":"https:\/\/metalite.net\/fr_ca\/produit\/144031a1-sprocket-7-tooth-ca550-replacement\/","title":{"rendered":"144031A1 Sprocket \u2014 7-Tooth CA550 Replacement for Case IH Combine Elevator"},"content":{"rendered":"
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\"144031A1<\/p>\n

Premium Agricultural Sprocket for Case IH Combine Grain Handling<\/h2>\n

OEM Part Numbers:<\/strong> 144031A1 \/ 1319176C1 \/ 87740180 \u00a0|
\nTeeth:<\/strong> 7 \u00a0|
\nBore:<\/strong> 1.25\u2033 (31.75 mm) \u00a0|
\nChain Fit:<\/strong> CA550<\/p>\n

The 144031A1 \/ 87740180 sprocket<\/strong> is a direct-fit aftermarket replacement for Case IH combine grain elevator systems. It serves two positions depending on the model: the lower clean grain elevator on early-series machines and the lower return grain elevator on the 2000\u20137000 series. Both positions run the CA550 agricultural chain, and this part is machined from 1045 grade round steel to match the original 7-tooth, 1.25\u2033 bore specification.<\/p>\n

The 1045 steel grade is a deliberate material choice for this application. It sits in the medium-carbon range, offering higher tensile strength than mild steel while remaining machinable to close tolerances. Teeth are hobbed on CNC equipment and then hardened, producing a wear surface that holds its profile geometry through a full harvest season of continuous elevator duty.<\/p>\n

This combine harvester sprocket<\/strong> covers three OEM cross-references \u2014 144031A1, 1319176C1, and 87740180 \u2014 under a single SKU. Dealers and fleet operators running mixed Case IH fleets can stock one part number in place of three, reducing both inventory cost and ordering complexity.<\/p>\n

<\/p>\n

Technical Specifications & Critical Dimensions<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nUnit<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
OEM Part Numbers<\/td>\n\u2014<\/td>\n144031A1 \/ 1319176C1 \/ 87740180<\/td>\n<\/tr>\n
Number of Teeth (Z)<\/td>\n\u2014<\/td>\n7<\/td>\n<\/tr>\n
Bore Diameter<\/td>\ninch \/ mm<\/td>\n1.25\u2033 \/ 31.75 mm<\/td>\n<\/tr>\n
Compatible Chain<\/td>\n\u2014<\/td>\nCA550 Agricultural Roller Chain<\/td>\n<\/tr>\n
Material<\/td>\n\u2014<\/td>\n1045 Grade Round Steel<\/td>\n<\/tr>\n
Manufacturing Process<\/td>\n\u2014<\/td>\nCNC Machining \u2192 Hobbing \u2192 Teeth Heat-Treatment \u2192 Surface Coating \u2192 QC Inspection<\/td>\n<\/tr>\n
Hub Configuration<\/td>\n\u2014<\/td>\nA-Plate \/ B-Hub \/ C-Hub \/ Welded Hub \/ Split (selectable)<\/td>\n<\/tr>\n
Surface Treatment<\/td>\n\u2014<\/td>\nCorrosion-resistant coating on outer surfaces<\/td>\n<\/tr>\n
Application Position<\/td>\n\u2014<\/td>\nLower Clean Grain Elevator \/ Lower Return Grain Elevator (model-dependent)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Extensive Compatibility List for Case IH Harvester Models<\/h2>\n

Confirm your model and elevator position before ordering. The same sprocket serves two distinct positions depending on the machine series.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Case IH Combine Models<\/th>\nPosition<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
1440 (ASN 30484 and above)<\/td>\nLower Clean Grain Elevator<\/td>\nSerial number break applies<\/td>\n<\/tr>\n
1460 (ASN 33286 and above)<\/td>\nLower Clean Grain Elevator<\/td>\nSerial number break applies<\/td>\n<\/tr>\n
1480, 1620<\/td>\nLower Clean Grain Elevator<\/td>\n\u2014<\/td>\n<\/tr>\n
5088, 6088, 7088<\/td>\nLower Clean Grain Elevator & Lower Return Grain Elevator<\/td>\nFits both positions on these models<\/td>\n<\/tr>\n
2144, 2166, 2188, 2344, 2366<\/td>\nLower Return Grain Elevator<\/td>\n\u2014<\/td>\n<\/tr>\n
2377, 2388, 2588<\/td>\nLower Return Grain Elevator<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Serial number breaks on 1440 and 1460:<\/strong> Only units above ASN 30484 (1440) and ASN 33286 (1460) use this sprocket. Check your combine serial plate before ordering if you are servicing an early-production unit from either series.<\/p>\n

Model not listed? Send your combine serial number and we will cross-reference against the 144031A1 specification within one business day.<\/p>\n

\"Installation<\/p>\n

Installation Guidance for Optimal Efficiency<\/h2>\n

A correctly fitted combine harvester sprocket<\/strong> runs quieter, wears slower, and transfers torque more efficiently than one that is installed without attention to shaft alignment and chain tension. Follow these steps to get the longest service life from your replacement.<\/p>\n