The Graco Mark XV XT ProContractor (ref. 18H405) is the 220–240 V version of the most powerful portable electric airless sprayer in Graco’s XT range. Built for demanding job sites and high flow rates, it features a reinforced displacement pump, a high-power motor, and the Smart Control XT electronic control system with digital display.
To help you maintain and repair your machine, we have compiled below all the exploded-view diagrams and manufacturer part references from the official Graco manual X011699 revision D, keeping only the variants that correspond to model 18H405. Each part name is clickable and takes you directly to the corresponding reference in our shop.
Spare parts for the lower pump section (Mark XV XT Pro – 2015687)
The lower pump section 2015687 is fitted on the Graco Mark XV XT Pro. Below you’ll find the exploded-view diagram of the lower pump section along with the complete list of spare parts, their Graco manufacturer reference, and a direct link to our shop.

Exploded view of the lower pump section – model 2015686 & 2015687
If you would like to check the original Graco diagram, you can find the PDF document at the following link: Graco assembly diagram for 2015687
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
| Pos. | Part number | Part name & product link |
|---|---|---|
| 1 | 112590 | Packing nut seal (throat) |
| 2 | 16X768 | Packing nut |
| 3 | 17H840 | Packing repair kit – stainless steel balls |
| 3 | 17H848 | Packing repair kit – ceramic balls |
| 5 | — | Pump cylinder (reference not specified in the manual) |
| 6 | 124249 | Piston valve ball (ceramic) |
| 7 | 160325 | Sealing O-ring |
| 10 | 249177 | Piston valve |
| 12 | 24N013 | Carbide seat kit (includes items 14, 27 and 33) |
| 13 | 15A303 | Intake valve (foot valve) |
| 14 | 17R046 | Intake valve ball |
| 15 | 193391 | Ball guide |
| 20 | 248979 | Cylinder liner |
| 21 | 108822 | PTFE O-ring |
| 22 | 2001545 | Piston rod |
| 27 | 107098 | PTFE O-ring |
| 28 | 156593 | O-ring |
| 33 | 24E027 | Intake spring |
| 34 | 17E793 | FX90 O-ring |
| 35 | 24U755 | Pump outlet check valve kit |
Complete repair kit
For a full overhaul of the 2015687 lower pump section, Graco recommends the 17H844 repair kit (ceramic balls).
Good to know
- Items 4, 8, 18, 19, 23, 24, 29, 31 and 32 (packings, packing glands, and seals) do not have an individual reference for this model: they are supplied in the packing kit under item 3.
- Only two parts distinguish the 2015687 (Pro) from the 2015686 (Standard): the cylinder liner (item 20) and the piston rod (item 22).
- Torque for the intake valve on the cylinder: 200 ± 15 ft-lb (approx. 271 N·m).
- Torque for the packing nut: 140 ± 10 in-lb (15.8 ± 1.1 N·m).
- Maximum working pressure of the XT lower pump section: 227 bar (22.7 MPa).
- Before any servicing, always follow the pressure relief procedure described in the Graco manual.
Diagram and spare parts for the chassis, motor, and pump

Exploded view of the Graco Mark XV XT ProContractor (figure 14-6 of manual X011699)

Enlarged view of the drive housing and motor (figure 14-5 of manual X011699)
If you would like to check the original Graco diagram, you can find the PDF document at the following link: Graco assembly diagram for 18H405
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Filter housing spare parts
The primary filter is the most heavily used wear part on the Mark XV. As standard, the 18H405 is fitted with a 60 mesh filter (ref. 244067); 30, 100, and 200 mesh filters are also available depending on the finish quality required and the viscosity of the material being applied.

Exploded view of the filter housing of the Graco Mark XV XT ProContractor 18h405
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Pos. |
Part number |
Part name & product link |
Qty |
|---|---|---|---|
| 20 | 19D919 | Filter base, XT | 1 |
| 21 | 120091 | Screw | 3 |
| 22 | 24B156 | Prime valve, heavy duty | 1 |
| 23 | 15C972 | Spring pin | 1 |
| 24 | 24A382 | Valve base, heavy duty | 1 |
| 25 | 24E234 | Prime valve handle, heavy duty | 1 |
| 26 | 244067 | 60 mesh filter kit (original equipment) | 1 |
| 26 | 244068 | 100 mesh filter kit | 1 |
| 26 | 244069 | 200 mesh filter kit | 1 |
| 26 | 244071 | 30 mesh filter kit | 1 |
| 27 | 2003271 | Diffuser tube, includes 29 | 1 |
| 29 | 117285 | Gland, O-ring | 1 |
| 56 | 2003348 | Pressure control transducer, includes 57 and 19C988 | 1 |
| 57 | 111457 | Gland, O-ring | 1 |
| 69 | 122533 | 3/8 npt elbow fitting, Mark IV / Mark V / Mark VII models | 1 |
| 77 | 2003280 | Nipple adapter, includes 84 — ProContractor models | 1 |
| 78 | 2005277 | 1/2 in. plug, Mark VII / Mark XV models | 1 |
| 84 | 107505 | Gland, O-ring | 2 |
| 123 | 2003279 | Fluid filter outlet kit, Mark VII / Mark XV ProContractor models | 1 |
The Graco manual also lists a filter cap (qty 1) at item 27, with no associated part number. For the 3/8 npt elbow fitting (item 69), the manual only lists the variants for 695/795/1095 (20B233) and Mark IV/Mark V/Mark VII (122533): please contact us for confirmation before ordering.
Digital display spare parts
The 18H405 is equipped with the Smart Control XT module with BlueLink connectivity (ref. 20B432).

Exploded view of the digital display (figure 14-13 of manual X011699)
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Pos. |
Part number |
Part name & product link |
Qty |
|---|---|---|---|
| 42 | 2015817 | Side motor shroud, includes 49, 59, 64 — Mark XV / Mark HP | 1 |
| 49 | 19C988 | Transducer grommet | 1 |
| 58 | 20B432 | Display module, includes 59 — ProContractor / BlueLink, Smart Control XT | 1 |
| 59 | 19D307 | Machine screw, torx pan head | 5 |
| 60 | 2003350 | Potentiometer assembly | 1 |
| 61 | 15C973 | Seal | 1 |
| 62 | 19C986 | Potentiometer knob | 1 |
| 63 | 19C527 | Display harness | 1 |
| 64 | 19C998 | Brand label, control | 1 |
| 83 | 19D678 | Control label | 1 |
Gun and hose spare parts
The Mark XV runs on 1/2 inch: a 15 m (50 ft) main hose in 1/2 in. and a 3.35 m (11 ft) whip hose in 3/8 in. Do not replace these hoses with smaller-diameter sections, as the pressure drop would cancel out the 10.6 l/min (2.8 gpm) flow rate.

Exploded view of the spray gun and hoses
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Pos. |
Part number |
Part name & product link |
Qty |
|---|---|---|---|
| 91 | 278499 | Coupled hose 1/2 in. x 15 m, Mark VII / Mark XV | 1 |
| 94 | 245820 | Spray gun, Mark VII / Mark XV | 1 |
| 97 | 191239 | Flexible hose 3/8 in. x 11 ft., Mark VII / Mark XV | 1 |
| 200 | 189018 | Swivel fitting, Mark V / Mark VII / Mark XV | 1 |
| 201 | 159239 | Sleeve, Mark VII / Mark XV | 1 |
Power cord spare parts
Manual X011699 lists around fifteen power cords depending on voltage and destination country. For the 18H405 (220–240 V), only one reference applies: 2003259.

Exploded view of the power cord and ground assembly (230 V AC models)
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Pos. |
Part number |
Part name & product link |
Qty |
|---|---|---|---|
| 73b | 2003259 | Power cord (ref. 18H405), includes 74, 75 | 1 |
| 74 | 20B466 | Power cord stop | 1 |
| 75 | 2003004 | Self-tapping torx machine screw | 2 |
| 76 | 2003504 | Machine screw, serrated hex head | 1 |
| 79 | 20B133 | Control separator | 1 |
| 101 | 100718 | Washer | 1 |
| 110 | 2002717 | Braided ground harness | 1 |
| 111 | 119791 | Machine screw, hex head with washer | 1 |
| 112 | 114391 | Ground screw | 1 |
| 113 | 119236 | Screw | 2 |
Safety and brand labels for model 18H405
Safety labels must remain legible on the machine at all times. Here are the ones specific to reference 18H405.
Note: if the table does not display correctly on your smartphone, we recommend rotating your screen or swiping your finger across the rows inside the table.
Pos. |
Part number |
Part name & product link |
Qty |
|---|---|---|---|
| — | 179960 | Medical label | 1 |
| 98 | 2015293 | Warning label | 1 |
| 105 | 2015296 | Front label | 1 |
| 106 | 2015295 | Side label | 1 |
| 107 | 2002410 | XT label | 1 |
| 108 | 19D677 | QR label | 1 |
Need help identifying a part?
Some parts of the Mark XV XT ProContractor exist in several versions depending on the supply voltage and the destination market. The references above correspond to the 18H405 220–240 V version, as indicated in the Graco manual X011699 revision D.
You’ll find our full range of Graco spare parts and airless sprayers at airless-discounter.de.
Not sure about a reference? Send us your sprayer’s model number and the item number from the diagram: our technical team will identify the part and check its availability.
Here are more tips on airless spray technology

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