

The Graco 101529 Bolt is a genuine OEM hex-head fastener used in specific Graco displacement pump assemblies. Built with a pre-applied nylon patch to prevent loosening during operation.
If your sprayer’s parts list explicitly references 101529, this part will be compatible with that unit’s pump assembly. Always confirm against your machine’s official parts manual.
The Graco 101529 Bolt (listed by Graco as a SCREW, hex head) is a vibration-resistant fastener with a pre-applied nylon locking patch used in specific displacement pump assemblies.
| Specification | Detail |
|---|---|
| Graco Part | 101529 |
| Type | Hex head screw / bolt with nylon locking patch |
| Thread Size | 3/8-16 UNC (coarse) |
| Length | 2-3/4 in (≈70 mm) |
| Typical Location | Displacement pump assembly (fastening in the fluid end / rod cap area) |
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