Graco SDP18 Electronic Preset Oil/Antifreeze Meter, Rigid, 1/2" NPT #26C356
| Part Number | 26C356 |
| Series | Graco SDP18 Series electronic meter |
| Dispense Type | Preset (programmable dispense quantity; max preset 9,999 units) |
| Extension | Rigid |
| Fluid Service | Oil (high-flow service) — crankcase oil, ATF, gear oil; line also rated for antifreeze |
| Pulse FC | Enabled — requires Pulse FC Starter Kit (26C401), sold separately |
| Flow Range | 0.25–18 gpm (0.9–68 lpm), tested in 10W motor oil |
| Fluid Inlet | 1/2 in–14 NPT |
| Outlet | 3/4 in–16 straight thread O-ring boss |
| Maximum Working Pressure | 1,500 psi (103.4 bar) |
| Metered Dispense Accuracy | ±0.5% (at 2.5 gpm, 70°F, 10-weight oil, 1 gal dispensed; may require calibration) |
| Units of Measure | Pints, quarts, gallons, liters (factory set to quarts) |
| Maximum Recorded Dispense | 9,999 units |
| Operating Temperature | 4°F to 158°F (−16°C to 70°C) |
| Dimensions (without extension) | 13 in × 3.75 in × 5.75 in (33 × 9.5 × 14.6 cm) |
| Weight | 5.3 lb (2.4 kg) |
| Wetted Parts | Aluminum, stainless steel, PBT, nitrile rubber, zinc-plated and nickel-plated carbon steel |
| Battery | 4 AA alkaline (Energizer E91 recommended) |
| Warranty | 5-year meter/valve warranty: 5-year structural, 3-year electronics, 1-year wear parts |
| Nozzle | High-flow oil nozzle (replacement part 255461) |
Graco SDP18 Electronic Preset Oil/Antifreeze Meter, Rigid, 1/2" NPT #26C356
The Graco #26C356 is the preset meter for operations that portion oil in volume: it is the SDP18 — Graco's 18 gpm preset-class electronic meter — set the quantity and let the meter count it out on engines, differentials and reservoirs alike. It is Pulse FC-enabled for fluid security on expensive drums of synthetic and semi-synthetic fluids. The rigid extension suits fixed wall, bench and overhead dispense points.
The SDP18 line carries Graco's oil/antifreeze meter designation — the line is rated for oil, ATF, gear oil and antifreeze service. This particular configuration is the high-flow oil version (18 gpm); antifreeze preset dispense runs on the antifreeze-nozzle models at 8 gpm.
Where It Fits
- Threads onto a standard 1/2 in. NPT bulk oil hose
- The outlet is a 3/4 in–16 straight-thread O-ring boss that accepts SD-series nozzle assemblies — this configuration ships with the high-flow oil nozzle (replacement part 255461)
- Rated for petroleum- and synthetic-based crankcase oil, ATF and gear oils (antifreeze and windshield-wash service are on other SD-series models)
Questions Shops Ask
Does it really handle both oil and coolant?
The SDP18 line is rated for oil, ATF, gear oil and antifreeze service, but this configuration ships with the high-flow oil nozzle at 18 gpm. For antifreeze preset dispense, Graco's antifreeze-nozzle models (26C355 flexible / 26C385 rigid) run at 8 gpm — call us and we will match the right one to your coolant bulk line.
Why preset at 18 gpm?
High-volume fills get the same portion control as small stalls — the meter counts out what was set, and the 0.25 gpm floor keeps low-flow dispenses accurate too.
How accurate is it?
Graco rates SD-series dispense accuracy at ±0.5% — tested at 2.5 gpm, 70°F, with 10-weight oil and 1 gallon dispensed. Flow rates are tested in 10W motor oil and vary with fluid pressure, temperature and viscosity; the meter can be calibrated to your fluid and pressure.
Why Buy from Alamo
- We stock the service parts that keep a meter in service — nozzles, extensions, swivel/filter kits and O-rings covered in the SD-series repair manual — so a dropped nozzle does not shut down a stall.
- We confirm your hose, inlet size and fluid list before the order ships, so the meter threads onto what is already on your wall.
- Call (817) 865-3707 and we will match the right SD-series meter to your bulk room.
Fitment & Setup
This configuration is the high-flow oil version (18 gpm). The SDP18 line carries Graco's oil/antifreeze designation and the meter is rated for oil, ATF, gear oil and antifreeze — but antifreeze preset dispense runs on the antifreeze-nozzle models (26C355 flexible / 26C385 rigid) at 8 gpm. Confirm your inlet size and fluid list before ordering.
Need help matching the right Graco meter to your bulk room? Call Alamo Equipment at (817) 865-3707.
Part numbers: 26C356
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