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Hapco

4.7

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When purchasing a product, price is the consumer's primary concern. At present, Hapco has 24 products for sale. Hapco products range in price from $24.49 to $199.99, and the average price of all the products is about $56.01.

We found that most of the Hapco products are manufactured by Hapco Products Co.. The manufacturer provides Hapco with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Hapco products from the seller Hapco Products Co.. The brand holds an average rating of 4.69, testifying to its excellent reputation.

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Hapco Best Sellers

Last Updated: Jan 11, 2026

Hapco Products - Pro-Seal – 8 oz.

  • Guaranteed to stop existing leaks in any fluid system
  • Engines, transmissions, differentials, power steering and hydraulic systems
  • Easy-to-use treatment quickly restores the flexibility, elasticity and tensile strength of all rubber seals

Hapco Products - Tri-Seal (Pack of 2)

  • Use for engine, transmission and power steering leaks
  • Makes a permanent seal and prevents future leaks
  • Compatible with all conventional and synthetic oils / fluids

Hapco Products - Main Sta – 16 oz.

  • Effectively stops oil leaks in any engine – Guaranteed
  • Compatible with all conventional and synthetic oils
  • Repairs and reconditions rubber seals to help prevent future leaks

Hapco Products - Pro-Seal (Pack of 2)

  • Guaranteed to stop existing leaks in any fluid system
  • Engines, transmissions, differentials, power steering and hydraulic systems
  • Easy-to-use treatment quickly restores the flexibility, elasticity and tensile strength of all rubber seals

Premium Hydraulic Oil AW ISO 32 – Anti-Wear, Anti-Rust, Anti-Foam & Anti-Oxidation | 1 Gallon | Made in USA

  • Anti-Wear Protection – Premium anti-wear additives help reduce metal-to-metal contact, protecting hydraulic systems during everyday operation.
  • Thermal & Heat-Stable Performance – Maintains consistent viscosity and performance across all operating temperatures.
  • Anti-Rust & Oxidation Resistance – Helps protect internal components from rust and oxidative breakdown.

Hapco Products - Tri-Seal – 16 oz.

  • Use for engine, transmission and power steering leaks
  • Makes a permanent seal and prevents future leaks
  • Compatible with all conventional and synthetic oils / fluids

Premium Hydraulic Oil AW ISO 32 – Anti-Wear, Anti-Rust, Anti-Foam & Anti-Oxidation | 1 Quart | Made in USA

  • Anti-Wear Protection – Premium anti-wear additives help reduce metal-to-metal contact, protecting hydraulic systems during everyday operation.
  • Thermal & Heat-Stable Performance – Maintains consistent viscosity and performance across all operating temperatures.
  • Anti-Rust & Oxidation Resistance – Helps protect internal components from rust and oxidative breakdown.

Hapco Products - Limited Slip Additive (Case of 36)

  • Use to reduce wear, noise and chatter in differentials
  • Provides extreme pressure-wear resistance in any fluid system
  • Does not contain petroleum distillates

Hapco Products - Slip Coat (Pack of 2)

  • Great for use in all gasoline, diesel and marine engines
  • Protects against heat and wear instantly
  • Eliminates dry start-ups

Hapco Products - Fuel System Cleaner (Pack of 2)

  • Use to thoroughly clean and lubricate any fuel system
  • Formulated to improve performance, reduce fuel emissions, stabilize fuel, remove harmful deposits and prevent future carbon buildup
  • Helps eliminate knock, ping, run-on and start difficulties

Hapco Products - Cooling System Sealer - 16 oz.

  • Use for head gasket, heater core, freeze plug, block and radiator leaks
  • Mixes with all types of antifreeze
  • Does not contain any harmful metal flakes

Hydraulic Oil AW ISO 46 (Pack of 2-32 oz.)

  • Use to help prevent rusting and corrosion
  • Compatible with all standard fluids
  • Heat stable at all operating temperatures

Hapco Products - Rack & Pinion Formula (Pack of 2)

  • Eliminates steering stiffness with just one treatment – Guaranteed
  • Protects all power steering systems against heat and wear
  • Compatible with all power steering fluids

Power Steering Fluid – Hapco Products - 32 oz.

  • Mixes perfectly with all original equipment fluids
  • Prevents rusting and corrosion
  • Contains anti-wear lubricants

Hapco Products - Fuel Injector Cleaner – 16 oz.

  • Quickly stops surging, stalling, hesitation and sluggishness by thoroughly cleaning and lubricating fuel injectors
  • Removes combustion chamber deposits that can cause knock, ping, run-on and start difficulties
  • Formulated to restore performance, reduce fuel emissions and stabilize fuel

Hapco - Power Steering & Trans Sealer - Makes a Permanent Seal in Power Steering Units and transmissions - 16 oz.

  • Makes a permanent seal in power steering units and transmissions
  • Contains a blend of sealing and lubricating agents
  • Helps provide a smoother and quieter operation

Hapco Products - Upholstery & Vinyl Cleaner – 1 Gallon

  • Use to safely clean fabric, carpet or painted surfaces
  • Does not require heavy scrubbing
  • Quickly and safely cleans any surface

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