8N4774 TO4B65 Turbocharger Replacement for CAT 3204 5211CC 4L

This aftermarket 8N4774 TO4B65 turbocharger is a replacement assembly for CAT 3204 5211CC 4L engines, including reference applications for CAT 926E and 953 machines. Verify part number, engine code, and OEM reference 465088-0003 before ordering to ensure correct fitment for your specific unit.

Key Specifications

Part number 8N4774 identifies this complete turbocharger assembly, built to the TO4B65 turbo model specification. The unit is a two-part design featuring a silver-colored compressor housing on top and a dark cast-iron turbine housing below. Visible structural elements include a vertical polished compressor inlet, a horizontal compressor outlet port, and a rectangular two-port turbine inlet flange with four bolt holes. The central cartridge is secured with hex-head bolts, separating the upper and lower housings. Both the turbine and compressor wheels are visible within their respective housings. The assembly ships in a 21x23x26 cm package with a gross weight of 9 kg. Representative OEM reference numbers for verification include 465088-0003, 465088-3, 465088-5003, and 465088-5003S. High-resolution studio images are available to assist with visual identification.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

• Caterpillar > CAT > CAT 926E > CAT 3204 5211CC 4L
• Caterpillar > CAT > CAT TRACK-TYPE LOADER 953 943 > 3204
• Caterpillar > Caterpillar 215 > Caterpillar 215 excavator > Caterpillar 3204
• Caterpillar > Caterpillar 910 > Caterpillar 910 Wheel Loader > Caterpillar 3204 DIT
• Caterpillar > Caterpillar 916 > Caterpillar 916 loader > Caterpillar 3204
• Caterpillar > Caterpillar 926 > Caterpillar 926 loader > Caterpillar 3204
• Caterpillar > Caterpillar 926 > Caterpillar 926E > Caterpillar 3204 DIT
• Caterpillar > Caterpillar 931 > Caterpillar 931 track loader > Caterpillar 3204 DIT
• Caterpillar > Caterpillar 931 > Caterpillar 931B track-type loader > Caterpillar 3204
• Caterpillar > Caterpillar 943 > Caterpillar 943 loader > Caterpillar 3204
• Caterpillar > Caterpillar 953 > Caterpillar 953 loader > Caterpillar 3204
• Caterpillar > Caterpillar 953 > Caterpillar 3204 DIT
• Caterpillar > Caterpillar D3 > Caterpillar D3 dozer > Caterpillar 3204 DIT
• Caterpillar > Caterpillar D3 > Caterpillar D3 dozer > Caterpillar 3204
• Caterpillar > Caterpillar D3 > Caterpillar D3B Dozer > Caterpillar 3204 DIT
• Caterpillar > Caterpillar D4 > Caterpillar D4HTSK II track skidder > Caterpillar 3204
• Caterpillar > Caterpillar E180 > Caterpillar E180 excavator > Caterpillar 3204
• Caterpillar > Caterpillar EL180 > Caterpillar EL180 excavator > Caterpillar 3204
• Caterpillar > Caterpillar IT28 > Caterpillar IT28B toolcarrier > Caterpillar 3204 DIT
• Caterpillar > Caterpillar IT28 > Caterpillar IT28B toolcarrier > Caterpillar 3204

This turbocharger is listed for reference applications across Caterpillar equipment powered by the CAT 3204 5211CC 4L engine. Representative machine applications include the CAT 926E, 953, and 943 track-type loaders, as well as the 910, 916, 926, 931, and 953 wheel loaders. It is also associated with the D3 and D3B dozers, D4HTSK II track skidder, 215 excavator, E180/EL180 excavators, and IT28B toolcarriers. These paths serve as verification clues; confirm your specific machine serial number and engine code before ordering. Cross-check OEM reference numbers such as 465088-0003 and 465088-5003S against your existing unit or service manual to ensure the correct replacement assembly is selected.

Technical Notes

The TO4B65 turbo model is a fixed-geometry design, meaning it does not use variable turbine vanes. The assembly features a central cartridge secured by hex-head bolts, separating the upper compressor housing from the lower turbine housing. The turbine inlet flange is rectangular with two large oval ports and four bolt holes, while the compressor inlet is vertical and polished. The external mounting flange on the turbine housing includes two bolt holes for engine attachment. Buyers should verify the flange orientation and bolt pattern against their specific CAT 3204 engine manifold to ensure correct installation. No actuator or cooling system details are visible or specified for this unit.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 8N4774 TO4B65 turbocharger. Technical fitment support is available to help verify part number 8N4774, engine code CAT 3204 5211CC 4L, and OEM reference numbers such as 465088-0003 before ordering. Inquire for bulk quotes or to confirm application details for your specific Caterpillar equipment.