SKU: 36074626436

SIMPSON SPG3640 Portable Gas Generator 4500 Starting Watts 3600 Running CRX 225 Engine RV Ready Jobsite Backup

Sale price$314.55 Regular price$349.50
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

SIMPSON SPG3640 Portable Gas Generator 4500 Starting Watts 3600 Running CRX 225 Engine RV Ready Jobsite BackupReliable Power for Work, Play, and Emergencies Call or Email for Availability and Shipping: 281 351 2211 Sales@HilltopTool. com Power your next adventure or project with the SIMPSON SPG3640 Portable Generator. Engineered for versatility and endurance, this generator is the ultimate solution for tailgating, camping, job site tool charging, and emergency home backup. At its core is the robust CRX 225 engine, a 224cc powerhouse designed to deliver

Reliable Power for Work, Play, and Emergencies

Call or Email for Availability and Shipping:
281-351-2211 - [email protected]

Power your next adventure or project with the SIMPSON® SPG3640 Portable Generator. Engineered for versatility and endurance, this generator is the ultimate solution for tailgating, camping, job site tool charging, and emergency home backup. At its core is the robust CRX® 225 engine, a 224cc powerhouse designed to deliver consistent performance under load. With 4,500 starting watts and 3,600 running watts, you have ample power to run essential appliances, RV systems, and heavy-duty power tools without skipping a beat.

Built to withstand the rigors of daily use, the SPG3640 features a heavy-duty, welded steel roll cage frame that provides superior durability and protection in rough environments. It is equipped with a large 3.96-gallon fuel tank that delivers an impressive 10.5 hours of run time at 25% load, ensuring you spend more time working and less time refueling. Safety is paramount with a comprehensive control panel featuring GFCI-protected outlets and an automatic low-oil shutdown sensor to prevent engine damage. Whether you are powering a travel trailer via the RV-ready TT-30R outlet or keeping the lights on during a storm, SIMPSON delivers power you can trust.

**Note: This unit is 49-State Compliant and does not ship to California.**

Key Features

  • High Output: Delivers 4,500 starting watts and 3,600 running watts for versatile power application.
  • CRX® Engine: Powered by a reliable CRX® 225 (224cc) engine with low oil shutdown protection.
  • Extended Run Time: Runs for up to 10.5 hours at 25% load on a full 3.96-gallon tank.
  • RV Ready: Includes a TT-30R 30A RV receptacle for direct camper connection.
  • Rugged Protection: Heavy-duty roll cage frame protects the engine and alternator from impact.
  • Safety First: Features GFCI protection on outlets to prevent electrical shock.
  • Compact Design: Weighs only 95 lbs with a compact footprint for easier transport and storage.
  • Versatile Outlets: Equipped with RV, Twist Lock, and Duplex outlets to handle various plug types.

Available for pickup at our Tomball, TX location:

30702 State Highway 249
Tomball, Texas 77375 

Monday-Friday 7am-5pm CST 
Saturday 7am-1pm CST

Specifications

Brand SIMPSON
Model SPG3640
Running Watts 3,600 Watts
Starting Watts 4,500 Watts
Engine CRX® 225 (224cc) w/ Low Oil Shutdown
Fuel Tank Capacity 3.96 Gallons
Run Time @ 25% Load 10.5 Hours
Run Time @ 50% Load 8.0 Hours
Outlets (1) 120V 30A RV (TT-30R), (1) 120V 30A Twist Lock (L5-30R), (1) 120V 20A Duplex (5-20R)
Dimensions (L x W x H) 23" x 17" x 17"
Product Weight 95 lbs
Warranty 3 Year Consumer / 6 Month Commercial

Pro-Tip: To ensure your generator starts easily after long periods of storage, always use a fuel stabilizer in your gas tank. Modern ethanol-blended fuels can degrade in as little as 30 days, clogging the carburetor and causing starting issues. A small amount of stabilizer keeps your fuel fresh for up to 24 months.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 36074626436

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4.2 ★★★★★
Based on 7 reviews
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Verified Purchase
Tom Armstrong
Waukegan, US
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
C
Verified Purchase
Computerized Nurse
Bozeman, US
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle. OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed. ================================================== Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better. Will post the results in a day or two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
K
Verified Purchase
K
Chelsea, US
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
G
Verified Purchase
Geydis Amador
Cuba, US
★★★★★ 5
Soft and comfortable
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are incredibly soft and comfortable. They provide great support while still feeling plush and cozy. I’ve been sleeping much better since I started using them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
A
Verified Purchase
Alan M
Cuba, US
★★★★★ 5
Comfortable, Hypoallergenic, and Great Value
Size: King (Pack of 2), Style: Soft, Configuration: Pillow
These pillows are a solid upgrade for everyday sleep. They’re soft but still provide enough support for both back and stomach sleeping, and the down-alternative fill is perfect if you’re sensitive to allergens. The microfiber cover feels smooth and well-made, and they fluff up nicely after decompressing. Overall, a comfortable and affordable set that gets the job done.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026

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