Top 10 Best transom support plate in 2026

Last Updated - 6/11/2026

🏆Best Choice

JY PERFORMANCE

JY PERFORMANCE Adjustable Boat Transom Saver for Outboard Motor, Boat Motor Transom Support with Composite Head for Outboard Motor

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Adjustable: The boat transom saver size can be adjusted from 23'' to 35'' to accommodate the motor sizes up to 100 HP
•Protect Engine: Transom saver is design for optimal weight distribution if the clearance between the outboard engine and the ground is limited
•Material: Made of high-quality aluminum to support the outboard motor weight, providing superior strength and durability
•Design: Composite head with marine grade ABS clamp holds the engine firmly and protects it from scratches
•Package: Boat transom saver comes with composite head, telescoping shaft, trailer mount bracket, 2 x 23'' rubber string with S-hooks, 2 x Clevis pin with a retainer

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$27.99

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Camoo

Camoo TSP-1 & TSP-2DP Transom Support Plate Kit for Top Bolt Holes Standard and Lower Bolt Holes Standard (12" x 2" & 15" X 2"), 3/8" Thickness Cast Aluminum, 2 Pack

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•APPLICATION -- TSP-1 fits for Top Bolt Holes- Standard, TSP-2-DP fits for Lower Bolt Holes- Standard. Will perfectly match the universal outboard mounting pattern used by all major manufacturers. For Mercury, Evinrude, Johnson, Yamaha.
•SIZE -- [ TSP-1 ]: 15" X 2", 3/8" Thickness, [ TSP-2-DP ]: 12" X 2", Holes 10", 3/8" Thickness. Package includes 2 Transom Support Plates for Top & Lower Bolt Holes- Standard.
•Function -- Helps distributes the stress of the outboard engine mounting bolts to protect the transom. Prolong lifespan of your transom when used with today's heavy 4-Stroke outboard engines.
•Material -- Manufactured from high quality Cast Aluminum to serve you for years to come. CNC machined for a perfect fit.
•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!

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$25.60

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Generic

Outboard Transom Reinforcement Backing Plate for Outboard Motors, 0.2" Thick, Full Pattern, Durable Aluminum, Compatible with Most Outboards

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Robust Construction: This 0.2" thick aluminum transom reinforcement plate is designed for maximum durability and strength.
•Universal Compatibility: Compatible with most outboard motors, ensuring a secure and reliable fit.
•Full Pattern Design: The full pattern design provides comprehensive reinforcement and support for your outboard motor.
•Corrosion-Resistant: Constructed from durable aluminum, this backing plate offers excellent resistance against corrosion and weathering.
•Easy Installation: With its straightforward design, this reinforcement plate can be easily installed on your boat's transom.

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$31.79

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Danti

TSP-1 Transom Support Plate For Top Bolt Holes (3001.8067) - 15" x 2" Aluminum Marine Engine Transom Support Plate, 3/8" Thickness

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Application：For 1986 - 2021 all outboard motors newer that do not have twist clamps.(NOTE : Not compatible with Yamaha F350 & SUZUKI DT25C (2000 YEAR MODEL) )
•Features：Distributes Stress of Engine Bolts , Distributes Outboard Engine Weight to Protect Your Transom.
•Material: Made of high quality Aluminum,Has excellent durability and resistance to corrosion and rust.
•Dimensions: Length and width：15" X 2" , Center to center hole : 13", 3/8" Thickness.
•Simple No-Drill Installation: Direct Bolt-On: Matches standard 13" center-to-center hole spacing .No Modifications Needed: Works with existing transom bolt holes- just align and tighten.

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$17.90

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telfair

3/16" Outboard Transom Reinforcement Plate - Heavy-Duty Iron Backing Plate Fit for Large Boat Motors (4-Stroke & 2-Stroke)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Heavy-duty reinforcement - 3/16" thick iron plate strengthens transoms for larger outboard motors
•Universal compatibility - Works with both 4-stroke and 2-stroke outboard engines
•Durable construction - Made from high-quality iron for long-lasting marine performance
•Simple installation - Blank plate allows custom mounting to fit your specific transom setup
•Boat protection - Distributes motor weight to prevent transom stress and damage

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$30.99

$39.99

-23%

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Camoo

TSP-2DP Transom Support Plate Alt. For Lower Bolt Holes Standard 12" x 2", Holes 10", 3/8" Thickness Cast Aluminum Marine Engine Transom Support Lower Plate

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•APPLICATION -- TSP-2-DP Fits For Lower Bolt Holes- Standard. For Mercury, Evinrude, Johnson, Yamaha and more. Will perfectly match the universal outboard mounting pattern used by all major manufacturers.
•DIMENSION -- 12" X 2", Holes 10", 3/8" Thickness.
•FUNCTION -- Helps distributes the stress of the outboard engine mounting bolts to protect the transom. Prolong lifespan of your transom when used with today's heavy 4-Stroke outboard engines.
•TOP QUALITY -- Manufactured from high quality Cast Aluminum to serve you for years to come. CNC machined for a perfect fit.
•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!

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$16.40

$17.40

-6%

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Pindex

Pindex TSP-1 Marine Transom Support Plate TSP-2DP Support Plate Kit 15" X 2" & 12" x 2"

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•TSP-1 fits top bolt holes-standard, TSP-2-DP fits lower bolt holes-standard.Perfect match to common outboard mounting patterns used by all major manufacturers compatible with Mercury Evinrude Johnson Yamaha.
•Fits for all outboard motors newer than 1986 that do not have twist clamps. Note: NOT fits for Suzuki 2000 DT25C and Yamaha F350
•Fabricated from high quality cast aluminum, helps distribute stress on outboard engine mounting bolts to protect cross members.Withstands saltwater & freshwater environments
•Package includes: TSP-1 15" X 2",Holes 13", 3/8" Thickness ; TSP-2-DP 12" X 2", Holes 10", 3/8" Thickness

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$24.99

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RJSPHH

TSP-1 & TSP-2DP Transom Support Plate Kit for Top Bolt Holes Standard and Lower Bolt Holes Standard 15” x 2” / 12” x 2” Thickness 3/8”

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Designed to distributes the stress and weight of the motor to protect the transom. These plates will separate the stress and weight to the hole plate area instead of only the support bolts.
•Package contains 1 x TSP-1 plate for top support and 1 x TSP-2DP plate for lower support, all the plates measure 3/8 inch thickness.
•TSP-1 Transom Support Plate SIZE : 15" X 2", 3/8" Thickness / TSP-2-DP Transom Support Plate SIZE : 12" X 2", Holes 10", 3/8" Thickness
•Made of high: quality aluminum, with strong corrosion resistance and aging resistance, durable
•One Year Warranty for it. If you have any problem ,please contact us and we will respond you on 24 hours

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$26.90

$29.90

-10%

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Camoo

TSP-1 Transom Support Plate For Top Bolt Holes Standard (15" X 2"), 3/8" Thickness Cast Aluminum, 3001.8067 Marine Engine Transom Support Upper Plate TSP-1-DP

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•APPLICATION -- TSP-1 fits for Top Bolt Holes- Standard. For Mercury, Evinrude, Johnson, Yamaha and more. Will perfectly match the universal outboard mounting pattern used by all major manufacturers.
•Dimensions -- 15" X 2", 3/8" Thickness. For Mercury Evinrude Johnson Yamaha.
•Function -- Helps distributes the stress of the outboard engine mounting bolts to protect the transom. Prolong lifespan of your transom when used with today's heavy 4-Stroke outboard engines.
•Material -- Manufactured from high quality Cast Aluminum to serve you for years to come. CNC machined for a perfect fit.
•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!

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$17.90

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T-H MARINE

T-H MARINE TRANSOM Support Plate - Lower

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•ENHANCE YOUR BOAT'S PERFORMANCE - Crafted from durable 3/8" 6061 alloy aluminum, our transom support ensures structural integrity, making it the ideal companion for high-performance engines in both freshwater and saltwater environments.
•MAXIMIZE STABILITY AND SAFETY - Our load distribution plate effectively disperses forces across the transom, mitigating the risk of wear over time and keeping your vessel's transom safely reinforced under high-torque conditions.
•CUSTOMIZED MOUNTING SOLUTIONS - Choose from multiple configurations like TSP-1 and TSP-2 for your specific boat model, ensuring the perfect fit. Our adaptable designs meet all your transom reinforcement needs without the hassle of modifications.
•SIMPLIFIED INSTALLATION PROCESS - Designed with user-friendliness in mind, our transom support and washer plate offers easy installation, allowing you to spend less time setting up and more time enjoying your time on the water.
•PREMIUM CORROSION RESISTANCE - Made from high-grade 6061 aluminum, our transom support is engineered to withstand harsh marine conditions, maintaining its color and integrity for years regardless of exposure to saltwater.
•RELIABLE SUPPORT FOR HIGH-TORQUE ENGINES - Our specifically designed marine transom support plates enhance load stability, allowing your high-performance systems to operate efficiently and effortlessly, whether you're racing or cruising.
•TRUSTED BY PASSIONATE BOATERS - Join countless satisfied customers who appreciate the commitment to quality and durability. Our transom support plates not only fulfill but exceed performance expectations for serious boating enthusiasts.
•PREVENTATIVE MAINTENANCE MADE EASY - By reinforcing your boat's transom now with our robust solution, you are investing in the longevity and safety of your watercraft, which protects its value and reduces future repair costs.
•UPGRADE YOUR BOATING EXPERIENCE - Our transom support enhances handling and steering, creating a smoother ride, so you can confidently tackle big waves and tricky turns without worrying about your vessel's stability.

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$23.23

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