Craftsman 919167242 air compressor Parts

The most common problems we see on a Craftsman air compressor like model 919167242 are air leaks, the unit not building or holding tank pressure, and start or shut-off issues tied to the pressure switch, check valve, regulator, or fittings. Use the troubleshooting charts in the 919167242 owner's manual to match symptoms to causes.

Most common air compressor problems (and what they look like)

• Air leaks at fittings or hoses: hissing sound, pressure drops while sitting
• Safety valve popping: tank pressure climbs too high, valve vents air
• Regulated pressure drops under use: tool runs weak, gauge drops when you pull the trigger
• Won’t build tank pressure: runs a long time, never reaches cut-out
• Won’t start or struggles to restart: hums, trips breaker, or won’t restart with pressure in the tank

Quick checks we recommend first

1. Shut off power and bleed pressure before touching fittings, hoses, or gauges.
2. Listen for leaks around quick-connects, regulator, drain valve, and tank fittings.
3. Check the hose for pinholes or cuts (a small hole causes big performance loss).
4. Verify the regulator setting under flow (set pressure while the tool is running, not at idle).
5. Watch the safety valve: if it vents near shut-off, the pressure switch cut-out may be too high or the switch may not be shutting off.

Symptom-to-likely-cause guide

Symptom	Most likely causes	What to do next
Safety valve pops	Pressure switch not shutting off; cut-out set too high	Turn unit off; inspect pressure switch operation
Leaks at fittings	Loose tube fittings; worn seals	Tighten fittings; recheck for leaks
Pressure drops when using tool	Some drop is normal; air demand too high; leaks; restricted check valve	Reduce air use; check for leaks; verify accessory SCFM needs
Tank won’t hold air	Leak at fittings; tank/weld leak	Check fittings first; if tank leak is suspected, stop using and have it serviced

Why it matters

Air leaks and pressure-control problems make the compressor run longer and hotter, reduce SCFM at the tool, and can trigger safety valve venting. Fixing leaks and setting regulated pressure correctly restores performance and helps prevent premature wear.

Related DIY help

• Air compressor air leaks
• Air compressor won't build tank pressure
• Air compressor won't start

Last updated: February 2026

Yes. Craftsman air compressors, including model 919167242, are a solid choice for most homeowner and DIY jobs (inflating tires, running nailers, light blow-off). They deliver good value and practical performance when you follow the operating limits and maintenance steps in the 919167242 owner's manual.

What “good” means for this type of compressor

For a tank-mounted, permanently lubricated compressor like the Craftsman 919167242, “good” usually comes down to whether it reliably builds tank pressure, cycles on and off correctly, and matches your tool’s air demand.

• Best for: intermittent air tools, garage tasks, small projects
• Not ideal for: continuous high-CFM tools (long sanding, blasting, nonstop spraying)
• Key reliability factor: correct duty cycle and clean, dry air practices

Performance expectations you can count on

The manual notes this pump can run continuously, but we recommend staying within a 50% to 75% average duty cycle to extend life (about 30 to 45 minutes of run time per hour). That guideline is a strong indicator the compressor is designed for real work, but not for nonstop heavy production use.

Quick fit check: your job vs. compressor capability

Task type	Typical fit for 919167242	Why
Tire inflation, blow gun	Good	Short bursts, low air demand
Brad/finish nailing	Good	Intermittent cycling
Light spray painting	Often good	Depends on sprayer CFM and duty cycle
DA sanding, blasting	Usually not ideal	High continuous air demand

Why it matters

If you size the compressor to the job, you avoid constant running, overheating, nuisance tripping, and premature wear. Staying within the recommended duty cycle is one of the simplest ways to get years of dependable operation.

Tips to get the best results from a Craftsman compressor

• Match tool CFM at PSI to what your compressor can realistically supply.
• Drain tank moisture regularly to reduce internal corrosion and water in air lines.
• Use the right hose inside diameter (1/4 in., 3/8 in., or 1/2 in.) for your airflow needs.
• If it struggles to start or build pressure, troubleshoot early instead of forcing it.

Helpful DIY troubleshooting

• Air compressor won't start
• Air compressor won't build tank pressure
• Air compressor air leaks

Last updated: February 2026

Most air compressor parts are not interchangeable. For the Craftsman 919167242 air compressor, internal components (pump parts, valve plate, cylinder head, gaskets, rings, connecting rod parts) must match the exact model design to fit correctly and maintain safe cut-in and cut-out pressure operation.

What’s usually interchangeable (and what isn’t)

Often interchangeable (if size and rating match)

• Quick-connect couplers and plugs (same style and thread)
• Air hoses (correct inside diameter and pressure rating)
• Some regulators and gauges (matching ports and pressure range)
• Common NPT fittings (correct thread size and seal method)

Usually not interchangeable

• Pump rebuild parts (rings, cylinder sleeve, connecting rod components)
• Valve plate assemblies and head gasket kits
• Pressure switch and unloader valve combinations (setpoints and porting vary)
• Check valves (threading, flow direction, and tube connections vary)

How we recommend matching parts for model 919167242

Use the exploded views and parts list in the owner's manual to match by model number, part name, and part number. This avoids common fit issues like wrong thread pitch, misaligned tubes, or incorrect pressure control components.

• Match the exact model number: 919167242
• Confirm thread type and size (common sizes are similar, but not identical)
• Confirm pressure rating for any air outlet accessory
• Confirm port orientation (especially on check valves, regulators, and switches)

Why it matters (performance and safety)

Incorrect substitutions can cause air leaks, poor pressure build, excessive cycling, or unsafe pressure behavior. The manual also warns against modifying the tank or substituting parts to alter factory-set operating pressures; use a regulator and gauge at the outlet when needed.

Quick compatibility checklist

Part type	Can it be “universal”?	What must match	Common risk if wrong
Coupler/plug	Sometimes	Style + thread size	Leaks, won’t connect
Hose	Sometimes	I.D. + pressure rating	Burst, pressure drop
Regulator/gauge	Sometimes	Port size + range	Bad readings, poor control
Pump internal parts	No	Exact model parts	Rapid wear, failure

Helpful DIY troubleshooting and repair resources

If you are swapping parts because of a symptom, these guides help you pinpoint the correct component first:

• Air compressor air leaks
• Air compressor won't build tank pressure
• How to replace an air compressor check valve
• How to replace an air compressor pressure switch

Last updated: February 2026

Craftsman is the brand; different companies have built Craftsman air compressors over the years. For Craftsman model 919167242, the owner documentation identifies Sears, Roebuck and Co. as the warrantor/brand owner, and it does not name a separate OEM manufacturer. Use the model and the parts list in the 919167242 owner's manual to match the correct components.

What we can confirm for model 919167242

The documentation for this specific compressor ties the product to Sears and the Craftsman brand, and it supports parts identification by model number.

• Model number shown in the manual: 919167242
• Product type: tank mounted air compressor
• Documentation includes: safety guidelines, operation, troubleshooting, and repair parts lists
• Manufacturer name: not listed as a separate OEM in the manual

How to identify the actual builder (OEM) on a Craftsman compressor

When you need the factory that physically built the unit, the most reliable source is the data plate on the tank or frame (not the brand name on the shroud).

• Look for a line that says MFG, Manufactured for, Manufactured by, or a company name/address
• Record any code numbers or date codes near the model/serial
• Match the pump, pressure switch, regulator, and check valve style to the repair parts diagrams
• Use the full model number when searching parts to avoid cross-brand lookalikes

Quick reference: brand vs. builder

Item on the label	What it means	Best use
Craftsman	Brand/marketing name	Identifies product line
919167242	Model identifier	Correct parts list and diagrams
Serial/date/code	Production trace	Helps narrow factory and revision

Why it matters

Craftsman compressors can share similar tank sizes but use different pressure switches, gauges, and pump assemblies. Matching parts by model 919167242 prevents ordering the wrong component and speeds up troubleshooting.

Related DIY troubleshooting

• Air compressor won't start
• Air compressor won't build tank pressure
• Air compressor air leaks

Last updated: February 2026