Best Rmstator Gaskets in 2026
Daisy
Last Updated: Jul 19, 2026
Daisy
Last Updated: Jul 19, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Boating Accessories | 9.39 | ❌ | ❌ | ❌ |
For : GM 200, 228, 230, 260, 898 (5.0 & 5.7L)
Visit Amazon’s SONAR parts finder at fit-guide.seastarsolutions.com to ensure this product will fit your application.
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| HARVARD MARINE | 9.64 | ❌ | ❌ | ❌ |
With Siamese port cylinder heads
For : GM 153 & 181 (25 & 30L) CID engs: 120 & 140 hp (s/n 6229718 & Up)
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fredwarner Marine & Outdoors | 9.84 | ❌ | ❌ | ❌ |
Meets or exceeds the original equipment quality
Exhaust manifold gasket set does not come with Siamese port cylinder
Interchangeable with the following: Barr MC47-27-53354A1, GLM 39300, Mallory 9-61405, Mercury 27-53354A1
Sierra Exhaust Manifold Gasket Set
Fit type: Universal Fit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Boating Accessories | 9.40 | ❌ | ❌ | ❌ |
For : Mercury 15-25 Hp 2 cyl
Visit Amazon’s SONAR parts finder at fit-guideseastarsolutionscom to ensure this product will fit your application
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fredwarner Marine & Outdoors | 9.84 | ❌ | ❌ | ❌ |
Dry Joint Style Exhaust Manifold for Mercruiser
Replaces: Mercruiser-865735A02, 865049T01, 864308T01
Use with: 18-1845 RISER, 18-0720 RISER GASKET (CLOSED), 18-0721 RISER GASKET (OPEN), 18-0722 RISER GASKET (RESTRICTED)
Fits: 305, 350, 377, 5.0L, 5.7L, 6.2L (2002 and Newer)
All Sierra parts qualify for and are covered under Sierra's Industry Leading Customer Satisfaction Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
sierra exhaust manifold gasket set
meets or exceeds the original equipment quality
built with precision
interchangeable with the following: barr mc47273589a4, glm 39290, mallory 9-61403, mercruiser 27-35898a4, 27-35898a2
Fit type: Universal Fit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Marker82 LLC | 5.40 | ❌ | ❌ | ❌ |
For : Volvo 50L, GL, GXI, OSI, and 57L, GL, GI, GXI, GIL, GXIL, OSI, OSXI
Visit Amazon’s SONAR parts finder at fit-guideseastarsolutionscom to ensure this product will fit your application
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| UG Online | 6.91 | ❌ | ❌ | ❌ |
Sierra Exhaust Manifold Gasket Set
Meets or exceeds the original equipment quality
Built with precision
Interchangeable with the following: GLM 39770, Mallory 9-61450
Fit type: Universal Fit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Marker82 LLC | 5.40 | ❌ | ❌ | ❌ |
For : GM 454, 525 (74L & 82L)
Visit Amazon’s SONAR parts finder at fit-guideseastarsolutionscom to ensure this product will fit your application
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Marine Parts Solutions | 9.52 | ❌ | ❌ | ❌ |
Use with 18-1935-1 riser
Use with 18-1936 riser
Use with 18-1931-1 manifold
Precision construction
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LFS Marine & Outdoor | 9.74 | ❌ | ❌ | ❌ |
Product Type:Powersports Vehicle Part
Item Package Dimension:0.508 cm L X17.018 cm W X56.896 cm H
Item Package Quantity:1
Country Of Origin: China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Boats & More | 9.41 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Boating Accessories | 9.39 | ❌ | ❌ | ❌ |
Fits : MCM/MIE GM V-8 (283, 305, 350 & 377 cid) engines
Visit Amazon’s SONAR parts finder at fit-guideseastarsolutionscom to ensure this product will fit your application
All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty
Fit type: Universal Fit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Data Alchemy | 8.60 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fredwarner Marine & Outdoors | 9.83 | ❌ | ❌ | ❌ |
Package Dimension: 14.0 H x 1.5 L x 7.0 W (inches)
Package Weight: 0.128 kilograms
All Parts qualify for and are covered under industry
Country of Origin : Taiwan
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Sierra International | 15 |
We've carried out a comprehensive analysis of 345 reviews on gaskets, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select gaskets priced around $52.96, with top brands including twcc, fel-pro, hongway, fireblack, vincos, zonfant, dwarfoo, middrivr and dernord and niyako
Our team of expert editors reviewed these high-quality items and handpicked the top 15 gaskets for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include winkkipag, amazon.com, hongway us, island outdoor, llc, zonfant auto parts, dwarfoo, middrivr and denuodianqiyouxiangongsi and niyako .
We are dedicated to assisting our users in finding the right gaskets Products based on their needs, saving them considerable time when choosing which gaskets to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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