In stock
SKU: 5U4278
5U4278 Piston Wear Ring fit Caterpillar
In stock
SKU: 5U4278
5U4278 Piston Wear Ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
$26.00
Delivery
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5U4278 Piston Wear Ring for Caterpillar Equipment
The 5U4278 piston wear ring is a replacement component for Caterpillar articulated dump trucks and related machine models listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is identified by SKU 5U4278 and is also designated as 5U-4278. It is used as a piston wear ring in the applicable Caterpillar equipment assembly. The available dimensional data includes the ring’s inner diameter, outer diameter, cross-section width and cross-section height.
Fitment
- Caterpillar articulated dump trucks
- Caterpillar D250B
- Caterpillar D25C
- Caterpillar D25D
- Caterpillar D300B
- Caterpillar D30C
- Caterpillar D30D
- Caterpillar D350C
- Caterpillar D350D
- Caterpillar D350E
- Caterpillar D35C
- Caterpillar D35HP
- Caterpillar D400
- Caterpillar D400D
- Caterpillar D400E
- Caterpillar D40D
- Caterpillar D44B
- Caterpillar D550B
Cross-reference numbers
- 5U4278
- 5U-4278
Specifications
| Part type | Piston wear ring |
| SKU | 5U4278 |
| Equipment manufacturer | Caterpillar |
| Material | Polyamide |
| Inner diameter | 5.25 in |
| Inner diameter B | 5.25 in, tolerance ±0.08 in |
| Cross-section width | 0.75 in |
| Width A | 0.75 in, tolerance ±0.03 in |
| Outer diameter | 5.51 in |
| Cross-section height | 0.12 in |
| Weight | 0.1 lb |
| Length | 3.8 cm |
| Width | 3.8 cm |
| Depth | 0.3 cm |






















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