---
title: "seastar hc5345 seal kit — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/seastar-hc5345-seal-kit"
last_updated: "2026-07-09T22:39:36.465Z"
locale: en
meta:
  description: "a concentrated shelf (top 5 take 90% of clicks) — seastar hc5345 seal kit doesn't clear our bar today."
  "og:description": "a concentrated shelf (top 5 take 90% of clicks) — seastar hc5345 seal kit doesn't clear our bar today."
  "og:title": "seastar hc5345 seal kit — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
---

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# **seastar hc5345 seal kit**

**Skip it****45/100 **

a concentrated shelf (top 5 take 90% of clicks) — seastar hc5345 seal kit doesn't clear our bar today.

**Market/yr**

**$274K**

**Growth (1y)**

**+274.9%**

**Products**

**8**

**Brands**

**7**

was 7 a year ago

**Sellers**

**44**

**Price range**

**$10.86–$162.60**

**Returns**

**2.0%**

**Rating**

**4.2★**

**Skip it**

Scored 45/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**14**

 ×0.30

Growth

**83**

 ×0.30

Competition

**0**

 ×0.20

Quality gap

**72**

 ×0.10

Returns

**84**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +274.9% year over year.

2K1KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: Mar, Apr, Jul · busiest ÷ quietest = 2.4×

## **Competition**

- Danti50% - SeaStar19% - Yoursme13% - Bonbo8% - KOHUIPU4% - NBPLUS3% - Other (1 brands)3%

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack. 7 brands and 44 sellers compete here.

**Brands**

**7 **—flat

was 7 a year ago

**Sellers**

**44**

**Top 5 brand share**

**94%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5345 HC6750 HC6751](https://m.media-amazon.com/images/I/51gqpH6RK0L.jpg) [**HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5345 HC6750 HC6751**](https://www.amazon.com/dp/B091SZHVXD)

Danti$19.544.4★62550%—flat

2
![HC5345 Seal Kit Fit for Seastar Front Mount Hydraulic Steering Cylinder Seal Kit #HS5157 & Steering Support Bracket Puller for SeaStar HC5345 HC5348 HC5358 & More](https://m.media-amazon.com/images/I/51seEdTK+3L.jpg) [**HC5345 Seal Kit Fit for Seastar Front Mount Hydraulic Steering Cylinder Seal Kit #HS5157 & Steering Support Bracket Puller for SeaStar HC5345 HC5348 HC5358 & More**](https://www.amazon.com/dp/B08CSGR344)

Yoursme$46.754.0★22113%▼falling

3
![Dometic SeaStar Seal Kit HS5157 with Wrench](https://m.media-amazon.com/images/I/417HYf+9blL.jpg) [**Dometic SeaStar Seal Kit HS5157 with Wrench**](https://www.amazon.com/dp/B001449P70)

SeaStar$162.604.6★79611%▲rising

4
![Bonbo for Seastar HC5345 Front Mount Hydraulic Steering Cylinder Seals Kit with Pin Wrench HS5157 & for All Seastar Steering Support Bracket Puller](https://m.media-amazon.com/images/I/519ewNbrr4L.jpg) [**Bonbo for Seastar HC5345 Front Mount Hydraulic Steering Cylinder Seals Kit with Pin Wrench HS5157 & for All Seastar Steering Support Bracket Puller**](https://www.amazon.com/dp/B08B1HSHT7)

Bonbo$46.684.1★858%▲rising

5
![Dometic SeaStar Seal Kit HS5167 without Wrench](https://m.media-amazon.com/images/I/51WA0dAW8+L.jpg) [**Dometic SeaStar Seal Kit HS5167 without Wrench**](https://www.amazon.com/dp/B000208CGM)

SeaStar$125.734.3★1207%▼falling

6
![HC5345 Seal Kit for SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 Seastar Seal Kit compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5346 HC6750 HC6751 HC6754 HC6755](https://m.media-amazon.com/images/I/310uhkjZ1YL.jpg) [**HC5345 Seal Kit for SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 Seastar Seal Kit compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5346 HC6750 HC6751 HC6754 HC6755**](https://www.amazon.com/dp/B0F9YPQ3J4)

KOHUIPU$21.064.1★274%▼falling

7
![NBPLUS Helm Seal Kit Hydraulic Helm Seal Service Kit Compatible with Seastar HH5271 HH5272 HH5273 HH5261 HH5262 HP6032 Baystar HH4514 HH4314 HH4513 for Marine Steering Systems](https://m.media-amazon.com/images/I/41Q73JpOO-L.jpg) [**NBPLUS Helm Seal Kit Hydraulic Helm Seal Service Kit Compatible with Seastar HH5271 HH5272 HH5273 HH5261 HH5262 HP6032 Baystar HH4514 HH4314 HH4513 for Marine Steering Systems**](https://www.amazon.com/dp/B0D7VZYJ4Y)

NBPLUS$10.864.6★333%▲rising

8
![SsllZdq HC5345 Seal kit for Seastar Front Mount Hydraulic Steering Cylinder with pin Wrench HS5157 and for All Seastar Steering Support Bracket pullers](https://m.media-amazon.com/images/I/41kWnjXvSLL.jpg) [**SsllZdq HC5345 Seal kit for Seastar Front Mount Hydraulic Steering Cylinder with pin Wrench HS5157 and for All Seastar Steering Support Bracket pullers**](https://www.amazon.com/dp/B0F9SVMTK4)

SsllZdq$39.953.3★113%▲rising

## **Product shelf**

All 8 tracked products in this niche.

Top sellersNewestTrending

[![HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5345 HC6750 HC6751](https://m.media-amazon.com/images/I/51gqpH6RK0L.jpg)**HC5345 Seal Kit For SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5345 HC6750 HC6751** Danti**$19.54**4.4★625 reviews](https://www.amazon.com/dp/B091SZHVXD) [![HC5345 Seal Kit Fit for Seastar Front Mount Hydraulic Steering Cylinder Seal Kit #HS5157 & Steering Support Bracket Puller for SeaStar HC5345 HC5348 HC5358 & More](https://m.media-amazon.com/images/I/51seEdTK+3L.jpg)**HC5345 Seal Kit Fit for Seastar Front Mount Hydraulic Steering Cylinder Seal Kit #HS5157 & Steering Support Bracket Puller for SeaStar HC5345 HC5348 HC5358 & More** Yoursme**$46.75**4.0★221 reviews](https://www.amazon.com/dp/B08CSGR344) [![Dometic SeaStar Seal Kit HS5157 with Wrench](https://m.media-amazon.com/images/I/417HYf+9blL.jpg)**Dometic SeaStar Seal Kit HS5157 with Wrench** SeaStar**$162.60**4.6★796 reviews](https://www.amazon.com/dp/B001449P70) [![Bonbo for Seastar HC5345 Front Mount Hydraulic Steering Cylinder Seals Kit with Pin Wrench HS5157 & for All Seastar Steering Support Bracket Puller](https://m.media-amazon.com/images/I/519ewNbrr4L.jpg)**Bonbo for Seastar HC5345 Front Mount Hydraulic Steering Cylinder Seals Kit with Pin Wrench HS5157 & for All Seastar Steering Support Bracket Puller** Bonbo**$46.68**4.1★85 reviews](https://www.amazon.com/dp/B08B1HSHT7) [![Dometic SeaStar Seal Kit HS5167 without Wrench](https://m.media-amazon.com/images/I/51WA0dAW8+L.jpg)**Dometic SeaStar Seal Kit HS5167 without Wrench** SeaStar**$125.73**4.3★120 reviews](https://www.amazon.com/dp/B000208CGM) [![HC5345 Seal Kit for SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 Seastar Seal Kit compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5346 HC6750 HC6751 HC6754 HC6755](https://m.media-amazon.com/images/I/310uhkjZ1YL.jpg)**HC5345 Seal Kit for SeaStar Hydraulic Steering Cylinder Seal Kit with Pin Wrench HS5157 Seastar Seal Kit compatible with HC5340 HC5341 HC5342 HC5343 HC5344 HC5346 HC6750 HC6751 HC6754 HC6755** KOHUIPU**$21.06**4.1★27 reviews](https://www.amazon.com/dp/B0F9YPQ3J4) [![NBPLUS Helm Seal Kit Hydraulic Helm Seal Service Kit Compatible with Seastar HH5271 HH5272 HH5273 HH5261 HH5262 HP6032 Baystar HH4514 HH4314 HH4513 for Marine Steering Systems](https://m.media-amazon.com/images/I/41Q73JpOO-L.jpg)**NBPLUS Helm Seal Kit Hydraulic Helm Seal Service Kit Compatible with Seastar HH5271 HH5272 HH5273 HH5261 HH5262 HP6032 Baystar HH4514 HH4314 HH4513 for Marine Steering Systems** NBPLUS**$10.86**4.6★33 reviews](https://www.amazon.com/dp/B0D7VZYJ4Y) [![SsllZdq HC5345 Seal kit for Seastar Front Mount Hydraulic Steering Cylinder with pin Wrench HS5157 and for All Seastar Steering Support Bracket pullers](https://m.media-amazon.com/images/I/41kWnjXvSLL.jpg)**SsllZdq HC5345 Seal kit for Seastar Front Mount Hydraulic Steering Cylinder with pin Wrench HS5157 and for All Seastar Steering Support Bracket pullers** SsllZdq**$39.95**3.3★11 reviews](https://www.amazon.com/dp/B0F9SVMTK4)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**27%

*“Fit well”*

**Quality-Overall**16%

*“Good quality”*

**Value For Money**13%

*“Worth it”*

**Assembly/Installation**10%

*“Easy install”*

**Advertised Vs Actual Product**8%

*“Worked as advertised”*

**Leak-Proof**6%

*“They do not leak”*

**Instructions/User Manual/Troubleshooting**5%

*“Comes with tool and instructions”*

**Durability**4%

*“the quality appears to be durable”*

**Efficiency**3%

*“The puller worked great and was needed”*

**Ease Of Use**1%

*“Easy to use”*

### **What buyers complain about **

**Leak-Proof**28%

*“Leaked terribly”*

**Quality-Overall**22%

*“Poor seal quality”*

**Durability**13%

*“Installed and blew out the same day”*

**Size-Overall**9%

*“incorrect size”*

**Value For Money**4%

*“Please, dont cheap out”*

**Defective Material/Parts**4%

*“Tools was poorly made”*

**Functionality-Overall**4%

*“Didn't work”*

**Assembly/Installation**3%

*“for the most part for the price great product difficult to install if you've never done it before messy”*

**Mounting**2%

*“Pin Wrench Defective”*

**Maintenance And Repair**2%

*“i will have to replace”*

#### **Top return reasons**- Size-Overall38% - Defective Material/Parts12% - Leak-Proof11% - Compatibility-Overall7% - Functionality-Overall5% - Value For Money5% - Assembly/Installation4% - Quality-Overall4% - Advertised Vs Actual Product4% - Product Condition2%