Looking for a reliable floor jacks at harbor freight in 2025? You’re not alone. With so many models available today, it’s easy to get lost—especially when descriptions are vague or customer reviews are all over the place. That’s why we decided to sort things out. Not by claiming to know everything, but by analyzing what sells well, what real users say, and what’s worth your attention both on paper and in practice. Our goal isn’t to drown you in technical details, but to guide you toward the best possible choices—without wasting hours comparing on your own. In short, a practical and hopefully useful guide.
This Pump Piston Replacement Kit is compatible with 3 & 3 1/4 t. Jack. Fit for the following brand: ARCAN HJ3000, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, SUNEX, NEIKO, NEIKO PRO
Fits for “LOW SIDE” (“smaller of the two plungers”). If you are looking at the floor jack from the rear (casters) the plunger listed here stays to the left. Note: The plunger diameter is smaller than the one to the right of it
This Pump Piston Replacement Kit is made of high-quality steel, copper and rubber. With strong durability, corrosion resistance and anti-rust performance. Better quality allows it to be used for a longer time
Included 5 pcs. [1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.] Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE"
Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2
Package Contains: The package contains 1 piece pump plunger with 2 seals, 1 piece cylinder, 1 piece spring, 1 piece copper packing, 1 piece C-Ring and 1 piece retainer
High Quality Material: The pump plunger, cylinder, spring, C-Ring and retainer are all made of quality steel material, and packing is made of copper material to ensure excellent wear and corrosion resistance. Two rubber sealing rings on plunger help to improve the sealing performance, ensure long term use of the pump piston kit
Replace a New Pump Plunger Kit: With the use of the jack, the pump piston and plunger inside may wear and age, resulting in hydraulic oil leakage and a decrease in load-bearing capacity. Replace the pump piston plunger kit to ensure jack tightness, increase load capacity, extend service life, improve operating experience and safety
Universal Compatibility: This Piston Kit fits for all 3-ton hydraulic floor jacks with dual pumps. Especially compatible with Torin Big-Red Harbor-Freight Daytona Pittsburgh Arcan hydraulic floor jack. Replaces the bigger piston on the lower side
Size: Pump plunger: 2.88" x 0.86" long with seals, Cylinder: 2.59" x 1.19" long, used to replace the bigger of the two plungers at the low side
APPLICATION -- Suitable for 3 ton & 3 1/4 ton Floor Jack. For ARCAN- HJ3000-, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, AFF, SUNEX, NEIKO.
FUNCATION -- Prevent leak. Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE".
PACKAGE INCLUDED -- Set included 5 pcs. [1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.] As pictures show.
ITEM SIZE -- Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2.
SATISFACTION GUARANTEE -- If you are not satisfied with Camoo products, simply return it for a full-refund in 30 days. Guarantee with 12 months warranty. No worry about buying!
How to choose a good floor jacks at harbor freight?
On the surface, choosing a floor jacks at harbor freight seems simple. But once you dig in, it gets more complicated. Between technical differences, unfamiliar brands, and unclear features, it’s better to ask the right questions:
Usage: Will you use it daily or only occasionally? That heavily influences the right model.
Budget: No need to go for the most expensive one right away. What matters is the value for money.
Key factors:
Durability, build quality, lifespan
Truly useful features (not just marketing buzz)
User reviews, especially after weeks or months
Availability of customer service in case of issues
We’ve cross-checked multiple sources: Amazon data, detailed reviews, search trends… and a bit of intuition too—because numbers don’t tell the whole story. This mix allows us to build our ranking, which we update regularly. The goal isn’t to just list names but to guide you toward what truly works.
This Pump Piston Replacement Kit is compatible with 3 & 3 1/4 t. Jack. Fit for the following brand: ARCAN HJ3000, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, SUNEX, NEIKO, NEIKO PRO
Fits for “LOW SIDE” (“smaller of the two plungers”). If you are looking at the floor jack from the rear (casters) the plunger listed here stays to the left. Note: The plunger diameter is smaller than the one to the right of it
This Pump Piston Replacement Kit is made of high-quality steel, copper and rubber. With strong durability, corrosion resistance and anti-rust performance. Better quality allows it to be used for a longer time
Included 5 pcs. [1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.] Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE"
Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2
Package Contains: The package contains 1 piece pump plunger with 2 seals, 1 piece cylinder, 1 piece spring, 1 piece copper packing, 1 piece C-Ring and 1 piece retainer
High Quality Material: The pump plunger, cylinder, spring, C-Ring and retainer are all made of quality steel material, and packing is made of copper material to ensure excellent wear and corrosion resistance. Two rubber sealing rings on plunger help to improve the sealing performance, ensure long term use of the pump piston kit
Replace a New Pump Plunger Kit: With the use of the jack, the pump piston and plunger inside may wear and age, resulting in hydraulic oil leakage and a decrease in load-bearing capacity. Replace the pump piston plunger kit to ensure jack tightness, increase load capacity, extend service life, improve operating experience and safety
Universal Compatibility: This Piston Kit fits for all 3-ton hydraulic floor jacks with dual pumps. Especially compatible with Torin Big-Red Harbor-Freight Daytona Pittsburgh Arcan hydraulic floor jack. Replaces the bigger piston on the lower side
Size: Pump plunger: 2.88" x 0.86" long with seals, Cylinder: 2.59" x 1.19" long, used to replace the bigger of the two plungers at the low side
APPLICATION -- Suitable for 3 ton & 3 1/4 ton Floor Jack. For ARCAN- HJ3000-, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, AFF, SUNEX, NEIKO.
FUNCATION -- Prevent leak. Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE".
PACKAGE INCLUDED -- Set included 5 pcs. [1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.] As pictures show.
ITEM SIZE -- Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2.
SATISFACTION GUARANTEE -- If you are not satisfied with Camoo products, simply return it for a full-refund in 30 days. Guarantee with 12 months warranty. No worry about buying!
Wide Application: This Pump Piston Replacement Kit is compatible with 3 & 3 1/4 t. Jack. Fit for the following brand: ARCAN HJ3000, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, SUNEX, NEIKO, NEIKO PRO
Well-designed Replacement: It is a perfect pump plunger replacement kit — "LOW SIDE" — ("smaller of the two plungers"). If you are looking at the floor jack from the rear (casters) the plunger listed here stays to the left. Note: The plunger diameter is smaller than the one to the right of it
Superior Material: This Pump Piston Replacement Kit is made of high-quality steel, copper and rubber. With strong durability, corrosion resistance and anti-rust performance. Better quality allows it to be used for a longer time
Package Includes: You will get 1*Pump Plunger (with 2 seals), 1*Cylinder, 1*Spring, 1*Copper Packing and 1*Retainer. The instruction manual is also included
100% Satisfaction Guarantee: We are committed to providing excellent products and the best service for our customers. If you are not satisfied with the product, you can simply return it. We support a 30-day refund on return and a 12-month warranty
Specifications: Floor jack saddle Diameter: 4 inch. This hydraulic jack is designed to handle a weight capacity of 3 tons (6,600 lbs), offering a lifting range from 5.15" to 18.3". Its the best tool for car repairing and auto emergency treatment in garage,shop.
Durable Steel Construtions: Heavy duty steel construction provides years of service.Equipped with rugged universal joint for precise load control.Premium stability allows the service jack to work for a long time on all kinds of roads
Flexible Swivel Casters: Equipped with Pair 2.5" steel front casters and pair 2.36" 360-degree swivel casters (solid rubber material) for easy positioning of jack.Meets ANSI/ASME PASE safety standards.
Applications for Convenient Use: Widely used for car tire change.Lifting range & capacity fit for most cars, trucks, and SUVs.Please carefully check whether our products match your vehicle parameters before purchasing
✅Fit for 3 ton & 3 1/4 ton Floor Jack. For ARCAN- HJ3000-, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, AFF, SUNEX, NEIKO.
✅Prevent leak. Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE".
✅This Pump Piston Replacement Kit is made of high-quality steel, copper and rubber. With strong durability, corrosion resistance and anti-rust performance. Better quality allows it to be used for a longer time.
✅It is a perfect pump plunger replacement kit — “LOW SIDE” —(“smaller of the two plungers”). If you are looking at the floor jack from the rear (casters) the plunger listed here stays to the left. Note: The plunger diameter is smaller than the one to the right of it.
✅Package Included：1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.]Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE".Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2.
SLOTTED DESIGN: The cross grooove design of floor jack pads is a great protector to align with the side welding seam, prevent your frame rail, specifically pinch welds from bending or scratching
ANTI-SLIP DESIGN: The waffle surface grip at the top of the jack pads can effectively enhance the friction, play a good anti-slip effect, providing you with better protection
UNIVERSAL: The jack pad adapter is suitable for cars up to 3 ton. It can work perfectly with a wide range of vehicles and floor jacks
DURABLE RUBBER: Pads are made from highly durable rubber that is specifically designed for durability and longevity to hold up to the rigorous needs of mechanics and DIY enthusiasts
PRODUCT PARAMETERS: Diameter: 4.92inch/125mm. Thickness: 26mm/1.02inch; Net weight: 0.11lbs/245g. Capacity: 2-3 ton. Set includes 1 pack
WIDE COMPATIBILITY：This kit fits for 3 ton & 3 1/4 ton Floor Jack. Fit for ARCAN- HJ3000, for COSTCO, for HARBOR FREIGHT, for POWERBUILT, for NORCO, for CORNWELL, for ASTRO, for MATCO,for AFF, for JACKCO, for AFF, for SUNEX, for NEIKO
SUPERIOR MATERIAL: Made of high-quality material with strong durability, high performance and long service time.Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2
GREAT PERFORMANCE: Prevent leak. Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE"
PACKAGE INCLUDED:This kit included 1*spring cover; 1*Pump plunger with seals; 1*Cylinder; 1*spring; 1* copper packing.
PREMIUM SERVICE: If you encounter any problems or you're not satisfied with this product, please contact us in time, we will deal with you as soon as possible.No worry about buying!
Durability and Stability: the adjustable jack post is constructed with heavy duty steel material, boasts galvanized surface, ensuring good durability and stability; With a weight of 3.5 kg, it ensures solid support and long term use; The jack post's tough build fortifies stairs, decks, and porches, making it a reliable ally in maintaining the safety and integrity of your spaces
Nicely Precise Dimensions: made with meticulous attention to detail, the top and bottom support plates and tubes of the jack post come in precise sizes for nice performance; The top support plate measures about 0.16 x 3.23 x 3.23 inches/ 4 x 82 x 82 mm and the bottom support plate measures about 0.16 x 4.92 x 4.92 inches/ 4 x 125 x 125 mm; The 2 tubes come in sizes of 17.72 x 0.59 inches/ 45 x 1.5 cm and 19.69 x 0.79 inches/ 50 x 2 cm, ensuring a good fit for most applications
Adjustable Height for Better Flexibility: boasting an adjustable height range about 23.23-43.31 inches/ 59-110 cm, the shoring jack can be modified to meet different needs, thus offering versatility and flexibility during installations and repairs; It caters to varying situational demands easily, making it more practical for users
Effortless Installation: our support jack ensures an easy and quick installation process, saving you substantial time and effort, you only need to keep the bottom support still, rotate the top support to the desired height, and then tighten the positioning nut with a wrench to fix the top plate, even one person can install and use it in a few seconds
Versatile Application: this house floor jack is versatile enough to be applied in a wide range of situations; Apart from strengthening stairs, porches, and decks, it can also be applied in heavy load areas, further demonstrating its sturdiness and adaptability, providing good extra supporting
Versatile Support: These heavy-duty metal post floor jacks offer versatile support for weak floors, home leveling, and furniture legs; they are great for balconies, patios, courtyards, and more, providing stability and support where needed
Adjustable Height: With a height range of 5 to 8 inches, these mini screw jacks allow for flexible height adjustments; simply use a pipe wrench to turn the screw to the required height and tighten the positioning nut for customized support
Robust Anti-Rust Alloy: Crafted from quality thickened alloy, these heavy-duty floor jacks are sturdy, reliable, rustproof, and corrosion-resistant; their stable structure ensures lasting performance and reliability
Rotatable Top Plate: The top plate rotates 360 degrees, offering adaptability in positioning and installation; this allows for precise alignment with various surfaces and structures, ensuring reliable support and stability in different applications
Compact and Easy to Install: These floor jacks are designed for straightforward setup and adjustment; the compact size (4 x 4 x 5-8 inches) makes them suitable for tight spaces, while pre-drilled screw holes facilitate quick attachment
Frequently Asked Questions (FAQ)
What is the best floor jacks at harbor freight? It depends on your needs, but the top 3 products are generally the most balanced options.
How do I maintain it properly? It varies by model. The best approach is to follow the manufacturer’s recommendations (yes, reading the manual is worth it).
Where to buy it with confidence? Amazon remains a solid choice: wide selection, easy returns, and tons of user reviews—hard to beat.
Do I need a big-name brand? Not necessarily. Lesser-known brands can be surprisingly good, with well-designed products that rival top names—at a lower cost. Don’t overlook them just because the name is unfamiliar.
What are the most common pitfalls? A super low price might be tempting but could signal major compromises (build quality, reliability, nonexistent support…). Also beware of product pages with no reviews or vague comments. Spend a few minutes reading real feedback—this is often where the most valuable info is.
How is our ranking built?
We don’t claim to have a magic formula. In reality, it’s a blend of data—ratings, sales volume, review frequency—and observation. We watch for recurring themes in reviews, compare search trends, and yes, sometimes rely on our gut feeling. A great product isn’t just numbers. Our ranking aims to balance all of that: data, common sense, and a lot of time spent checking.
We analyze scores, sales frequency, genuine reviews (not just stars), and current search trends. Each model is rated using a consistent set of criteria. While it’s not perfect, it helps us stay fair and consistent. And we update our lists often, because products evolve—and so do we.
Why trust Topelio?
Topelio is an independent website—we don’t sell these products and we’re not tied to any brand. What drives us is clarity and usefulness. We aim to produce practical, readable, honest content. Our rankings are based on public data, complemented by our own experience. No shady partnerships or biased recommendations—just a genuine effort to save you time, and maybe money too.
Thanks for taking the time to read this guide. Choosing a floor jacks at harbor freight might seem trivial, but it’s often more complicated than expected. Too many options, unclear product pages, and marketing promises that don’t help… That’s why we aimed to create a simple but solid comparison. With practical info, useful tips, and most importantly—a ranking based on reality. Take time to compare, read more reviews if needed, and choose based on your own priorities. What works for someone else might not be ideal for you. If this guide helped you, feel free to explore our other articles. We always try to add real value—without wasting your time. See you soon on Topelio.
