Graco 179733 Sleeve Seal

The Graco 179733 Sleeve Seal is a genuine OEM replacement that prevents leaks between the gun body and handle, maintaining consistent spray pressure.

Used on Contractor and Contractor II spray guns
Fits In-Line Valve, XTR5, and XTR7 models
Seals handle-to-body joint for leak-free operation
Replaces worn or leaking sleeve/handle seals

$7.51

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Description

Compatibility & Key Details for This Sleeve Seal

Compatible Machines / Guns

This part is confirmed for the following Graco spray guns:

Graco Contractor Spray Gun (original)
Graco Contractor II Spray Gun
Graco In-Line Valve Airless Spray Gun
Graco XTR5 Airless Spray Gun
Graco XTR7 Airless Spray Gun

Tip: Always match by part number and your gun’s manual. If your model uses the same handle/body sealing interface, 179733 is the correct sleeve seal.

What is the Graco 179733 Sleeve Seal?

The Graco 179733 Sleeve Seal is a small tapered gasket that seals the junction where the gun handle (with filter) threads into the gun body. A worn seal can cause fluid seepage at the handle, air ingestion, poor priming, or inconsistent spray pattern.

Part Details

OEM Part Number	179733 (aka 179-733)
Also Known As	Handle Seal, Sleeve Seal, Gasket, Handle
Installed Location	Between spray gun body and the threaded handle/filter assembly
Primary Function	Seals the handle interface to prevent leaks and pressure loss
Typical Symptoms When Worn	Drips at handle, difficulty priming, pressure fluctuations, air bubbles in fluid

Fit Notes & Verification

Confirmed for Contractor / Contractor II / In-Line Valve guns and XTR5 / XTR7 high-pressure guns.
If your gun’s manual lists 179733 at the handle-to-body seal, this is the correct part.
Replace any time the seal is nicked, flattened, or leaking after tightening to spec.

Frequently Asked Questions

It seals the interface where the handle/filter assembly threads into the gun body, preventing material leakage and pressure loss at that joint.

Contractor, Contractor II, In-Line Valve, XTR5, and XTR7 spray guns. Always verify with your gun’s parts list.

Look for fresh paint or solvent leaking at the handle threads, inconsistent pressure, or a visibly flattened, nicked, or hardened seal.

Clean the seat, lightly lubricate threads if your manual allows, seat the sleeve seal squarely, and tighten the handle to the manufacturer’s torque guidance (do not overtighten).

Yes—179733 is the OEM Graco sleeve/handle seal. Aftermarket equivalents exist, but OEM fit is recommended for best sealing performance.