Technical Data– Komatsu D61EX-23 Corner Tip 134-72-61450
| ITEM | Technical Data |
|---|---|
| Part Number | 134-72-61450 |
| Application | Komatsu D61 / D61E / D61EX / D61PX Bulldozers |
| Position | Left-hand end (corner) |
| Design | Hot cupped |
| Length | 12.8 inches |
| Width | 8 inches |
| Thickness | 1 inch |
| Bolt Quantity | 5 plow bolts + 5 hex nuts (included) |
| Bolt Size | 3/4″ x 3″ (750 x 300) plow bolt / 3/4″ hex nut (750 HEX NUT) |
| Bolt Hole Spacing | 2.75 inches center to center |
| Edge to First Hole | 3.54 inches from blade edge to center of first hole |
| Material | Heat-treated alloy steel |
| Installation | Bolt-on, no modification needed |

Hot Cupped Design for Enhanced Dozing Efficiency
The Komatsu D61EX-23 Corner Tip 134-72-61450 features a hot cupped left-hand end bit design specifically engineered for D61 series bulldozers. This 1-inch thick end bit measures 12.8 inches in length and 8 inches in width, providing robust corner protection where wear is most severe. The hot cupped shape promotes better material rolling during dozing operations, which reduces drag and improves overall machine efficiency. When tackling abrasive materials like gravel, rocky terrain, or compacted soil, the heat-treated alloy steel construction maintains consistent hardness throughout the component. Consequently, this corner tip resists deformation and delivers extended service life compared to standard flat end bits.
Simple Installation with Complete Hardware
Installing the Komatsu D61EX-23 Corner Tip 134-72-61450 requires basic tools and minimal time. Follow these steps:
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Remove the worn end bit from the bulldozer blade corner position.
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Clean the mounting surface thoroughly to ensure proper fit and bolt alignment.
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Position the new corner tip against the blade, matching the 5 bolt holes.
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Insert the 3/4″ x 3″ plow bolts with hardened washers through each hole.
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Torque all nuts evenly in a crossing pattern to manufacturer specifications.
The bolt holes feature 2.75-inch spacing from center to center. The first hole sits 3.54 inches from the blade edge. These measurements match Komatsu OEM specifications exactly. Therefore, no drilling or modification is required. The kit includes 5 pieces of 3/4″ x 3″ plow bolts and 5 pieces of 3/4″ hex nuts.
Maintenance and Application Tips
The Komatsu D61EX-23 Corner Tip 134-72-61450 is compatible with Komatsu D61, D61E, D61EX, and D61PX models. For optimal performance, follow these recommendations:
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Inspect the corner tip regularly for wear patterns. Replace when approximately 40% of the original thickness remains.
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Check bolt torque after the first few hours of operation to prevent loosening.
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Clean the mounting area before each reinstallation to prevent debris buildup.
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Consider weld cladding for extreme abrasion conditions to extend service life further.
In moderate dozing conditions, this corner tip delivers consistent performance. The hot cupped design reduces material resistance, making it ideal for site clearing, road construction, and light to medium dozing applications. Regular maintenance ensures the end bit performs reliably across multiple work seasons.






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