Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Simpson 90037 3400 Psi 2.5 Gpm AAA Technologies Triplex Plunger Pump KitFeatures 3400 PSI @ 2. 5 GPM PowerBoost Technology Fully adjustable unloader system with ergonomic control Sight glass and advanced oil seal technology, does away with the need for a dipstick Thermal relief protection to prevent pump overheating Dual oversized radial ball bearings are installed for better wear, friction resistance and precision ceramic coated pistons for extended seal life Crankcase is manufactured from fully anodized die cast
Features
- 3400 PSI @ 2.5 GPM
- PowerBoost Technology
- Fully adjustable unloader system with ergonomic control
- Sight glass and advanced oil seal technology, does away with the need for a dipstick
- Thermal relief protection to prevent pump overheating
- Dual oversized radial ball bearings are installed for better wear, friction resistance and precision ceramic coated pistons for extended seal life
- Crankcase is manufactured from fully anodized die cast aluminum for corrosion protection and is sealed to prevent contamination and lube failure
- Gas engine flange and hollow shaft that fits most horizontal shaft engines
What's in The Box
- AAA Triplex Plunger Pump
- Inlet/Outlet Connections
- Siphon Tube w/ Filter
- New Mounting Bolts
- Shaft Key
- Owner's Manual
Warranty
- 5-Year Limited Factory Warranty
- 30 Day Satisfaction Guaranteed
Specifications
| Sku | 90037 |
| Brand | Simpson |
| Max Pressure | 3,400 Psi |
| Gallons Per Minute | 2.5 Gpm |
| Inlet Port | 3/4 in. GH |
| Discharge Port | Threaded Male Fitting |
| Inlet Pressure Range | 10-60 Psi |
| Thermal Relief Port | 1/4 in. NPT |
| Shaft Diameter | 3/4 in. |
| Flange Bolt Pattern | SAE J-609A |
| Key Way | 3/16 in. |
| Pump Oil Capacity | 8.0 fl-oz. |
| Power Boost | Yes |
| Head Material | Brass |
| Shipping Weight | 9 lbs. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 41 reviews
Sort
Product Reviews
★★★★★ 5
Great tshirts!
Color: Light Gray, Dark Gray, Black, Size: X-Large
Husband loved these tshirts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 2
Not made from the most comfortable fabric
Color: White, Light Gray, Black, Size: Large
It is not the most comfortable fabric which makes it not suitable for summer clothing. Also, the fitting of the neck doesn’t look good since material is not wrinkle free
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
★★★★★ 4
Excellent Mock Neck T-Shirts
Color: Wine Red, Navy Blue, Black, Size: Medium
As a man who appreciates comfort and style, I can confidently say these August Alley mock neck t-shirts are a solid choice. I'm always looking for versatile basics, and these fit the bill perfectly.
The cotton material feels great against the skin, and they've held their shape well after a few washes. I appreciate the slim fit; it looks modern without being too tight. Whether I'm wearing them casually or layering them under a jacket, they always look sharp.
For the price, getting a 3-pack of these quality shirts is a fantastic deal. Highly recommend them for any guy looking to upgrade his basic tee collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 24, 2025
★★★★★ 5
Well worth the price.
Great fit and quality feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
recommand products
Glance
224.50
FISCHER ELEKTRONIK AKK 191 Heat Sink, TO-3, TO-3, 12 °C/W, 27 mm, 40 mm, 27 mm
256.07
Safco Rectangular Wastebasket, Steel, 22 Gal, Sand - SAF9618SA
139.32
Clorox Healthcare Versasure Cleaner Disinfectant Wipes, 1-Ply, 12" X 12", White, 110 Towels/Pouch - CLO31761EA
39.69
3M 810 19MM MAGIC TAPE, 19MMX33M
402.14