SIMPSON · Parts by washer
Parts that fit the SIMPSON PowerShot PS4240 / PS60843
4,400 PSI · 4.0 GPM · 3/8 in quick-connect hose · size 4 nozzle. Which replacement parts match it, which need a check, and which don't fit.
As an Amazon Associate we earn from qualifying purchases. Specs below come from the sources linked in the table; anything the maker doesn't state is marked so.
PS4240 / PS60843 specs that decide fit
| Spec | Value | Source |
|---|---|---|
| Rated pressure (PS60843) | 4,400 PSI | SIMPSON product page |
| Rated pressure (PS4240) | 4,200 PSI | SIMPSON series page |
| Rated flow | 4.0 GPM | SIMPSON product page |
| Engine (PS60843) | CRX 420 | SIMPSON product page |
| Engine (PS4240) | Honda GX390 | SIMPSON series page |
| Pump (PS60843) | AAA triplex | SIMPSON product page |
| Pump (PS4240) | AAA industrial triplex | SIMPSON series page |
| Hose (PS60843) | Steel-braided Monster 3/8 in x 50 ft, QC fittings | SIMPSON product page |
| Hose (PS4240) | Monster 3/8 in x 50 ft, steel-braided, quick connect | Dealer listing of SIMPSON specs |
| Gun (PS60843) | Rear-load QC connection | SIMPSON product page |
| Gun (PS4240) | Quick-connect hose inlet | Dealer listing of SIMPSON specs |
| Wand (PS60843) | 31 in QC spray lance | SIMPSON product page |
| Wand (PS4240) | 31 in steel, quick connect + threaded M22 | Dealer listing |
| Nozzles | 5 quick-connect tips: 0°, 15°, 25°, 40°, soap | SIMPSON product page |
| California | Not for sale in California (49-state model) | SIMPSON product page |
What to know before you buy parts
- The PS4240 (4,200 PSI, Honda GX390) and PS60843 (4,400 PSI, CRX 420) both run at 4.0 GPM through a 3/8 in quick-connect Monster hose, so the same parts fit both. Parts here are checked against the higher 4,400 PSI rating.
- At 4,400 PSI this is above the rating of most homeowner accessories. Only parts rated 4,500 PSI qualify, which rules out every MorFlex hose and the 80299 and 80625 surface cleaners.
- The 4.0 GPM flow suits the 20 in 80182 surface cleaner, which needs at least 3,450 PSI and 3.0 GPM.
- This is a 4,200 PSI professional machine with 3/8 in quick-connect hose fittings, so the M22 MorFlex hoses that suit homeowner washers are not a match.
Nozzle size for the PS4240 / PS60843
Using the standard formula (nozzle number = GPM × √(4000 ÷ PSI)), 4.0 GPM at 4,400 PSI works out to 3.81, so the nearest standard tip is size 4. Work out other ratings with our nozzle size calculator.
Below: 7 good matches, 4 to check first and 14 that don't fit, checked against the 4,400 PSI / 4.0 GPM rating and the connection types above.
Replacement hoses
| Fit | Part | Why | |
|---|---|---|---|
| Good match | Monster 41113 — 25-foot pressure washer hose | 3/8 in quick-connect, rated 4,500 PSI, cold water. | Check price |
| Good match | Monster 41028 — 50-foot pressure washer hose | 3/8 in quick-connect, rated 4,500 PSI, cold water. | Check price |
| Good match | Monster 41030 — 100-foot pressure washer hose | 3/8 in quick-connect, rated 4,500 PSI, cold water. | Check price |
| Good match | Armor 41114 — 50 ft pressure washer hose | 3/8 in quick-connect, rated 4,500 PSI, hot/cold water. | Check price |
| Good match | Armor 41096 — 100-foot pressure washer hose | 3/8 in quick-connect, rated 4,500 PSI, hot/cold water. | Check price |
| Not a match | MorFlex 40224 — 25 ft pressure washer hose | M22 threaded ends; this washer uses 3/8 in quick-connect fittings. | Check price |
| Not a match | MorFlex 80391 — 30 ft pressure washer hose | M22 threaded ends; this washer uses 3/8 in quick-connect fittings. | Check price |
| Not a match | MorFlex 40225 — 25 ft pressure washer hose | M22 threaded ends; this washer uses 3/8 in quick-connect fittings. | Check price |
| Not a match | MorFlex 80392 — 40 ft pressure washer hose | M22 threaded ends; this washer uses 3/8 in quick-connect fittings. | Check price |
| Not a match | MorFlex 40226 — 50 ft pressure washer hose | M22 threaded ends; this washer uses 3/8 in quick-connect fittings. | Check price |
Spray guns
| Fit | Part | Why | |
|---|---|---|---|
| Check first | Universal Pressure Washer Spray Gun with Side Assist Handle 80148 | Rated 4,500 PSI. Its hose inlet is M22, but SIMPSON includes an M22 quick-connect hose adapter; confirm it matches your 3/8 in hose plug. | Check price |
| Check first | Professional Pressure Washer Spray Gun 80178 | Professional hot-water gun (5,075 PSI, 12 GPM) with NPT threads; M22 and quick-connect adapters are included. More gun than most homeowners need. | Check price |
| Not a match | Universal Pressure Washer Spray Gun 80147 | Rated 3,400 PSI, below the washer's 4,400 PSI. | Check price |
Wands
| Fit | Part | Why | |
|---|---|---|---|
| Check first | Universal 31-Inch Pressure Washer Wand 80479 | 31 in, rated 4,500 PSI. Needs an M22 gun outlet; the maker doesn't state this washer's gun-to-wand thread. | Check price |
| Not a match | Universal 16-Inch Pressure Washer Wand 80149 | Rated 3,500 PSI, below the washer's 4,400 PSI. | Check price |
| Not a match | Pressure Washing Telescoping Wand 80470 | Rated 4,000 PSI, below the washer's 4,400 PSI. | Check price |
| Not a match | Professional 48-Inch Insulated Pressure Washer Wand 80179 | 1/4 in MNPT gun end; it threads into NPT guns such as the 80178, not an M22 gun. | Check price |
Nozzles
| Fit | Part | Why | |
|---|---|---|---|
| Good match | SIMPSON nozzle set 80146 (size 4.0) | Size 4.0 matches this washer's calculated size of 4. | |
| Not a match | SIMPSON nozzle set 80145 (size 3.0) | Size 3.0; this washer needs about 4. A smaller orifice than needed pushes pressure above the rating. | |
| Not a match | Twinkle Star Pressure Washer Nozzle Tips TWIS005 (Size 2.5) | Rated to 4,000 PSI, below the washer's 4,400 PSI. | Check price |
Surface cleaners
| Fit | Part | Why | |
|---|---|---|---|
| Good match | Universal 20-Inch Industrial Pressure Washer Surface Cleaner 80182 | 20 in, 3,450–4,500 PSI, 3/8 in quick-connect inlet that fits at the hose end. | Check price |
| Not a match | Universal 15-Inch Pressure Washer Surface Cleaner 80299 | Rated to 3,700 PSI, below the washer's 4,400 PSI. | Check price |
| Not a match | Universal 16.5-Inch Pressure Washer Surface Cleaner 80625 | Rated to 4,000 PSI, below the washer's 4,400 PSI. | Check price |
Foam cannons
| Fit | Part | Why | |
|---|---|---|---|
| Not a match | High Pressure Foam Cannon 80271 | Rated to 4,000 PSI, below the washer's 4,400 PSI. | Check price |
Replacement pumps
| Fit | Part | Why | |
|---|---|---|---|
| Check first | AAA Triplex Pump Kit 90034 | 4,400 PSI at 4.0 GPM, 1 in shaft, QC outlet. Confirm a 1 in horizontal engine shaft. | Check price |
Similar pressure washers
Washers with the same nozzle size or a close pressure rating, where many of the same parts apply.
How we decide fit
A part is a good match when its pressure rating is at or above 4,400 PSI, its flow range covers 4.0 GPM and its connection matches the washer. “Check first” means the ratings match but one connection detail isn't published or varies between batches, such as M22 insert size. See M22 14 mm vs 15 mm.