Top 10 Best toilet replacement parts in 2026

Last Updated - 6/26/2026

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RNTKAB

Flush Valve Seal for Kohler, 2 Pack GP1059291 Silicone Replacement for Toilets - Upgraded Seal Kit Compatible with Kohler K-GP1059291 Canister

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•ENHANCED FLUSH EFFICIENCY:Replace the old or damaged GP1059291 flush valve seal to restore the original flushing efficiency for Kohler toilet; preventing weak flushes and poor performance caused by a clogged or worn-out flush valve seal gasket for Kohler
•GOOD FIT: Our K-GP1059291 flush valve seal is suitable for all Kohler toilets with canister flush valves, is a perfect substitute for Kohler canister flush valve seal (red or yellow), compatible with K-4436 etc parts
•PREMIUM MATERIAL: Our for Kohler GP1059291 replacement seal is made of outstanding silicone materials, which are superior to rubber; designed to meet various water challenges; offers excellent and long-lasting performance; ensure reliable seal for kohler flush valve
•EASY INSTALLATION: No special tools required; replace the old flush valve seal for Kohler toilet in just three minutes; follow simple steps for a good fit and immediate results; K-GP1059291 outer diameter 3.3 inches, inner diameter 2.6 inches
•GREAT VALUE PACK: For kohler gp1059291 flush valve seal kit – Available in 2, 3, or 5 Packs; offers replacements for kohler toilet flush valve gasket; ideal for keeping spares on hand for future maintenance

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$7.59

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Femory

Flush Valve Seal for Kohler, GP1059291 Silicone Replacement for Toilets - Upgraded Seal Kit Compatible with Kohler K-GP1059291 Canister-2 PCS

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Fit for Kohler GP1059291 replacement seal is made of outstanding silicone materials, which are superior to rubber; designed to meet various water challenges; offers excellent and long-lasting performance; ensure reliable seal for kohler flush valve
•K-GP1059291 is the perfect replacement for Kohler cartridge flush valve seals and fits all Kohler toilets with cartridge flush valves.
•The flush valve seal is made of silicone. Compared with ordinary rubber, it is more resistant to chlorine and other substances in the water. It is not easy to deform and is less likely to produce bubbles, making it more long-lasting.
•Easy Installation,Simply turn the valve stem to remove it, then take out the old gasket at the bottom of the valve stem. Replace it with a new seal ring, and then screw the valve stem back on.
•K-GP1059291 flush valve seal outer diameter 3.3 inches, inner diameter 2.6 inches

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$4.99

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RNTKAB

Flush Valve Seal for Kohler, 2-Pack GP1059291 Silicone Replacement for Toilet - Upgraded Leak-Proof Gasket Seal Kit Compatible with Kohler Canister, K-GP1059291

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•ENHANCED FLUSH EFFICIENCY:Replace the old or damaged GP1059291 flush valve seal to restore the original flushing efficiency for Kohler toilet; preventing weak flushes and poor performance caused by a clogged or worn-out flush valve seal gasket for Kohler
•GOOD FIT: Our gp1059291 canister seal is suitable for all Kohler toilets with canister flush valves, is a perfect substitute for Kohler canister flush valve seal (red or yellow), compatible with K-4436 etc parts
•PREMIUM MATERIAL: Our for kohler red flush valve seal is made of outstanding silicone materials, which are superior to rubber; designed to meet various water challenges; offers excellent and long-lasting performance; ensure reliable seal for kohler flush valve
•EASY INSTALLATION: No special tools required; replace the old flush valve seal for Kohler toilet in just three minutes; our product has a lip to improve ease of adding and removing new and old K-GP1059291 seals.
•GREAT VALUE PACK: For kohler gp1059291 flush valve seal kit – Available in 2, 3, or 5 Packs; offers replacements for kohler toilet flush valve gasket; ideal for keeping spares on hand for future maintenance; outer diameter 3.3", inner diameter 2.6"

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$7.99

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Hidnvefen

3Pcs Canister Flush Valve Seal for Kohler, Toilet Tank Parts GP1059291 Flush Valve Seal, Silicone Gasket Replacement Parts Toilet Seal Ring

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•[Solving Your Kohler Toilet Flush Valve Leak] This canister flush valve seal can prevent or stop leaks, to restore your toilet's quiet operation, improve flush pressure, and avoid those high monthly water bills with our Kohler toilet parts.
•[Quick and Easy Installation] Quick and effortless to repair your Kohler toilet leaking problems. No plumbing pro skills required and no need to remove the toilet base, it takes just a few minutes to install and restore your toilet's tranquility.
•Toilet Flush Valve Replacement Kit - Perfect replacement for Kohler K-GP1059291 canister flush valve seal (red or yellow color). Compatible with K-4436 parts. This toilet ring seal fits most toilets with a 3. 3/8" gasket diameter, a great way to fix issues caused by worn or damaged seals.
•[Premium Silicone Material] The toilet flush valve seal is crafted from high-quality silicone material, offering better resistance to chlorine and other chemicals in the water compared to regular rubber seals, last 10X longer than standard material.
•[Installation Video for Toilet Seal] If you're unsure how to replace this toilet seal component or there are any problems with this flush valve seal, contact us through Amazon for an installation video. We'll respond within 0.5 to 6 hours upon receiving your message.

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$8.99

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Essential Values

Compatible Kohler Flush Valve Seal - 3 Pack Toilet Ring Seal GP1059291 - Flushing Gasket by Essential Values

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Compatible 6 Pack Kohler Flush Valve – Great value 6-pack flush valve seals compatible with Kohler K-GP1059291. Offered at a fraction of the store price. Choose Essential Values for high-quality, compatible Kohler toilet replacement parts.
•Easy Installation – Outside diameter: 3 3/8", Inside diameter: 2.75". Our compatible Kohler flush valve kit is a direct replacement for worn or cracked original seals. Installation takes just minutes, with full fitting instructions available in the photos.
•Smarter Design – Unlike other brands, our gasket design includes an improved lip for easier removal and replacement of the seal in the future. Save time and money without compromising on quality.
•Bring Back Your Flush Power – A poorly flushing toilet can be problematic and embarrassing, especially with guests. We include a set of 6 compatible Kohler flush seal gaskets in each pack. Save money and protect your toilet for future use.
•GP1059291 Replacement Part – Suitable for Kohler toilets with a flush valve seal and compatible with other comparable brands. Dimensions are based on an outside diameter of 3 3/8”. This is an aftermarket replacement by Essential Values.

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$8.99

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IMPRESA

IMPRESA Canister Flush Valve Seal - 2-Pack, Yellow - Flush Canister Seal Replacement Toilet Ring & Gasket Ring - Compatible with Kohler Models K-GP1059291 & 2475620

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Reliable Toilet Seal: IMPRESA’s Canister Flush Valve Seal offers a seamless solution for leaks and toilet malfunctions. Compatible with Kohler models K-GP1059291 and 2475620, it enhances toilet performance and reliability
•Quick Installation: Experience a hassle-free installation with our toilet seal replacement, designed to fit without removing the toilet tank. The efficient design ensures your toilet flushes with enhanced power and consistency
•Enhanced Flushing Power: The dual flush valve replacement kit significantly boosts toilet flushing performance. It prevents weak flushes and reduces issues caused by a deteriorating gasket seal, ensuring long-term efficiency
•Universal Compatibility: This toilet flush valve replacement kit is compatible with most toilets featuring a 3.3/8" gasket diameter. It effectively addresses problems caused by worn or damaged toilet bowl seal rings
•Effortless Home Maintenance: IMPRESA's toilet repair kit is essential for maintaining optimal bathroom functionality. Simple to install and effective in resolving leaks, it is an ideal choice for busy households

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$9.99

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KOHLER

Kohler Genuine Part GP1059291 Toilet Tank Canister Valve Seal, Yellow - 6-pk

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Kohler Part GP1059291 Toilet Tank Canister Valve Seal, 6-pk.
•Genuine Kohler part. Compatible with Kohler Class 5 and Class 6 canister toilets.
•Kohler's proprietary formulated yellow seal fights conditions that cause leaks. Formulated to withstand wear from chemicals and general use.
•This seal has a 2-1/2 " inner diameter and a 3-1/2 " outer diameter.
•Certified to ASME standard.

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$36.97

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IMPRESA

IMPRESA Flush Valve Seal - Durable Rubber & Toilet Gasket Kit - Quick 3-Minute Install & Gasket Replacement - Compatible with Kohler Toilet Tank GP1059291 & Flush Seal Ring - Pack of 5, Yellow

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Reliable Seal Replacement: The IMPRESA Flush Valve Seal offers a durable rubber solution for replacing worn toilet parts. Compatible with Kohler toilet tanks, it enhances flushing efficiency and maintains quiet operation
•Efficient Flush Performance: This toilet gasket replacement kit ensures optimal water flow and pressure, reducing noise and improving function. Replace your old toilet tank parts to restore your toilet's performance and enjoy a smoother flush
•Quick Installation Process: Designed for convenience, this replacement toilet seal allows for a straightforward three-minute installation without removing the toilet base. Follow simple instructions to upgrade your toilet's efficiency seamlessly
•Durability and Longevity: Crafted from a robust rubber blend, our gasket toilet ring provides a long-lasting solution to everyday bathroom challenges. Its resilience ensures consistent performance, making it a wise addition to any home
•Universal Compatibility: This flush seal replacement is compatible with various toilet tanks featuring a similar flush system. Ensure a proper fit and seamless integration for a hassle-free and effective toilet maintenance experience

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$12.99

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ADKUN

5 Pack GP1059291 Canister Flush Valve Seal Replacements For Kohler Toilets Replaces K-GP1059291, 2475620

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Package includes ：5 pcs can flush valve seals
•Canister flush valve seal for Kohler toilet gasket replacement tank parts(red or yellow color). Equivalent to part number ： GP1059291, K-GP1059291, 2475620
•Fixes the following symptoms: Flushing loudly, Leaking, Insufficient flushing pressure
•Outer diameter: 3”(8 cm) Inner diameter: 2.6” (6.6 cm) Thickness: 0.08” (0.2 cm)
•PREMIUM QUALITY: The replacement part is made from high quality material for long lasting.

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$8.98

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KOHLER

Kohler 05863000849 Part GP1059291 Canister Seal, 0.25 x 3.00 x 3.00 inches 4 PACK

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•4 PACK

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$31.00

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