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Graco 287833 Pump Cylinder Sleeve Aftermarket | Bedford 57-4078
PriceQuantity
287833
MPN:57-4078
Manufacturer:Bedford Precision Parts
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Graco 287833 Pump Cylinder Sleeve - Aftermarket | Bedford 57-4078
The Graco 287833 Pump Cylinder Sleeve - aftermarket model Bedford 57-4078 - is a precision-honed steel liner that restores sealing surfaces in Graco TexSpray GH-833 pump lowers. It stabilizes output pressure, improves packing life, and provides OEM-level performance at a lower cost.
Why Choose the Graco 287833 Pump Cylinder Sleeve
This aftermarket Bedford 57-4078 sleeve is engineered to renew the internal bore of the Graco GH-833 fluid section for smooth, consistent spray performance.
- Direct aftermarket replacement matching OEM 287833 dimensions and surface finish.
- Precision-honed bore ensures stable rod movement and minimal friction.
- Hardened steel resists scoring and wear from abrasive coatings.
- Restores pressure consistency without replacing the full lower assembly.
Typical Compatibility
Confirmed fit for Graco airless models using the 287833 sleeve:
- Graco TexSpray GH-833 Gas Hydraulic Airless Sprayers
- GH-833 pump lowers listing OEM 287833 sleeve
- Bedford 57-4078 aftermarket rebuild kits and replacements
Verify by serial number and parts list. If your manual references 287833, this Bedford 57-4078 sleeve is the correct fit.
Technical Specifications
The Graco 287833 Pump Cylinder Sleeve (Aftermarket Bedford 57-4078) meets OEM tolerances to restore bore geometry and maintain long-term pressure reliability.
| Specification | Detail |
|---|---|
| Aftermarket Part | Bedford 57-4078 |
| OEM Reference | Graco 287833 |
| Fits | Graco TexSpray GH-833 airless sprayers (lower assemblies specifying 287833) |
| Component Type | Pump Cylinder Sleeve (lower bore liner) |
| Material | Hardened, precision-honed steel |
| Function | Provides sealing surface for packings and maintains consistent pressure |
| Surface Finish | Mirror-honed interior for extended packing life |
| Pressure Range | Operate within sprayer’s rated maximum (≈ 5000 PSI) |
| Brand | Bedford Precision Parts (Aftermarket) |
Installation Notes
Follow these steps to install the Graco 287833 Pump Cylinder Sleeve (Aftermarket Bedford 57-4078) correctly and prevent premature wear:
- Depressurize and flush the unit before removal of the old sleeve.
- Clean the housing bore; stone any raised edges and wipe with lint-free swabs.
- Dry-fit the new sleeve to verify alignment and depth. Apply approved retaining compound if specified by the manual.
- Press the sleeve squarely to the stop and align relief ports accurately.
- Install fresh packings, lubricate with TSL (Throat Seal Liquid), and prime at low pressure (300-500 PSI) to seat packings evenly.
Real Installation Tip: Check piston-rod OD and sleeve ID clearance before final assembly to ensure perfect packing contact and smooth operation.
When to Rebuild or Replace
Replace the Graco 287833 sleeve (or its Bedford 57-4078 equivalent) when you notice:
- Scoring or grooves in the bore where packings travel
- Persistent leakage around the packing nut after adjustment
- Unstable pressure or reduced output per stroke
- Metal fines visible in flushed solvent after short run times
Bedford 57-4078 vs Graco 287833 OEM Comparison
This comparison shows how the aftermarket Graco 287833 Pump Cylinder Sleeve (Bedford 57-4078) matches the factory part for fit and performance:
| Feature | Bedford Aftermarket | Graco OEM |
|---|---|---|
| Part Number | 57-4078 | 287833 |
| Quality & Material | Hardened, precision-honed steel built for contractor use | Factory hardened steel sleeve |
| Availability | If in stock, ships from Bedford Precision Parts in Bedford Hill, New York | May require OEM lead time |
| Value | Lower cost with equal fit and longevity | Higher OEM pricing |
| Manufacturer | Bedford Precision Parts (USA) | Graco Inc. |
Frequently Asked Questions
Answers to common questions about the Graco 287833 Pump Cylinder Sleeve (Aftermarket Bedford 57-4078):
