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Bracket and Collar for 7940P

Universal No Fittings!
Item#:
7940B
Manufacturer:
Pro Marine
Available:
Out of Stock
ETA:
11/14/2026
Your Price:
24.72
Each

Bearing, Ball Crankshaft

Yamaha 40/50 Striped
Item#:
6305S
Cross Reference#:
93306-305U2-00
93306-305U8-00
Manufacturer Item:
93306-305U8-00
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
31.36
Each

Gasket, Air Silencer

Johnson/Evinrude 85-140hp V4 Crossflow
Item#:
985
Cross Reference#:
0321722
0777922
18-0985
321722
33630
777922
878731
Manufacturer Item:
321722
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
4.40
Each

Carburtetor Kit

Johnson/Evinrude 9.9-15hp 1991-Up
Item#:
7219
Cross Reference#:
0398230
0398508
0431897
0436359
0436824
0438397
0439073
0777722
18-7219
18-7219
398230
398230
398508
40600
431897
436359
436824
438397
439073
777722
8M0175331
8M6010307
879079
879079A02
879079A1
8790791
9-37109
Manufacturer Item:
439073
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
23.64
Each

Sensor Throttle Position

OMC / Volvo/PCM Ford 5.0L 5.8L w/EFI
Item#:
9879
Cross Reference#:
R020026
3850988
879074
9-33709
987988
Manufacturer Item:
987988
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
88.88
Each

Gasket, Intake

Mercury 75-115 DFI
Item#:
9840
Cross Reference#:
10-9840
879840
879840
Manufacturer Item:
879840
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
11.60
Each

Gasket, Air Silencer

Mercury 75-115 DFI 3cyl
Item#:
9843
Cross Reference#:
879843
Manufacturer Item:
879843
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
10.92
Each

Gasket, Water Jacket

Johnson/Evinrude 45-60hp 2 cyl
Item#:
992
Cross Reference#:
0315538
0777414
18-0941
315538
34780
777414
878709
Manufacturer Item:
315538
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
3.06
Each

Ignition Distributor Cap Rotor

GM V8 Vortec w/Flat Cap 2001-Up
Item#:
63091
Cross Reference#:
R103011
18-5247
3858975
3858977
8M0060495
8M0061335
8M0215003
8M0215004
8M6001106
8M6001222
884790
884792
898253T22
898253T29
898253013
898253022
Manufacturer Item:
898253T29
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
79.06
Each

Pro Marine Verado Steering Cylinder Seal Replaces Mercury 8M0155530

Pro Marine Hydraulic Steering Cylinder Seal for Mercury Verado Steering Sys

Pro Marine Verado Steering Cylinder Seal

Hydraulic Steering Cylinder Seal for Mercury Verado Systems

This Pro Marine steering cylinder seal is an aftermarket replacement for select Mercury Verado hydraulic steering cylinder assemblies.

The seal helps maintain hydraulic steering pressure while supporting proper steering cylinder sealing and steering system performance.

Compatible Applications

Engine Range Engine Type System Application Notes
Mercury Verado 135-400HP FourStroke Hydraulic Steering Used in compatible Mercury Verado steering cylinder assemblies
Mercury L6 Verado Models Supercharged FourStroke Hydraulic Steering Used in compatible integrated steering systems
Mercury V8 / V10 Verado Models FourStroke Hydraulic Steering Used in compatible Verado steering cylinder assemblies
Fitment Note: This Pro Marine steering cylinder seal fits select Mercury Verado hydraulic steering cylinder assemblies replacing Mercury OEM part numbers 8M0155530 and 880667.

Always verify your Mercury model, serial number, and steering cylinder diagram before ordering hydraulic steering seals and components.

OEM Part Numbers & Cross References

Brand / Type Part Number
Pro Marine 880667
Replaces Mercury OEM 8M0155530
Replaces Mercury OEM 880667

Complete Steering Cylinder Seal Kit Option

Need to reseal the complete Verado steering cylinder assembly? See the Pro Marine Steering Cylinder Seal Kit , which includes the additional seals commonly needed to reseal the entire Mercury Verado steering cylinder assembly.

What This Steering Cylinder Seal is Used For

This Pro Marine steering seal is used inside compatible Mercury Verado hydraulic steering cylinder assemblies.

The seal helps contain hydraulic steering fluid pressure while supporting proper steering cylinder operation and steering response.

A worn or damaged steering cylinder seal may allow hydraulic fluid leakage, steering pressure loss, or poor steering performance.

Replacing hydraulic steering seals during service helps maintain reliable steering system operation and reduce steering fluid leakage.

Key Features and Benefits

  • Pro Marine aftermarket steering cylinder seal
  • Replaces Mercury OEM part numbers 8M0155530 and 880667
  • Fits select Mercury Verado hydraulic steering systems
  • Helps maintain hydraulic steering pressure
  • Helps reduce steering fluid leakage
  • Designed for compatible Verado steering cylinder assemblies
  • Common replacement during steering cylinder service
  • Aftermarket alternative to OEM Mercury steering seals

Steering Cylinder Seal Details

  • Brand: Pro Marine
  • Part Type: Steering Cylinder Seal
  • Replaces OEM: Mercury 8M0155530 and 880667
  • Application: Mercury Verado Steering Cylinder Assemblies
  • System: Hydraulic Steering System
  • Use: Steering cylinder sealing
  • Quantity Sold: Each

FAQ

What does this Pro Marine steering seal fit?
This seal fits select Mercury Verado hydraulic steering cylinder assemblies using compatible steering system components.

What Mercury part numbers does this replace?
This Pro Marine seal replaces Mercury OEM part numbers 8M0155530 and 880667.

What does this seal do?
It helps seal the hydraulic steering cylinder assembly to maintain steering fluid pressure and reduce leakage.

Can a bad steering seal cause fluid leaks?
Yes. A worn or damaged steering cylinder seal may allow hydraulic steering fluid leakage and steering performance issues.

Do I need additional seals during steering cylinder service?
In many cases, yes. Complete reseal service often requires multiple seals and O-rings throughout the steering cylinder assembly.

Is there a complete steering seal kit available?
Yes. Pro Marine offers a steering cylinder seal kit that includes the additional seals commonly needed to reseal the complete Verado steering cylinder assembly.

Should I verify fitment before ordering?
Yes. Mercury used multiple steering cylinder configurations depending on model and production range, so serial number verification is recommended.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

  • Free shipping on orders over $100 continental U.S.
  • Orders ship via UPS, USPS, and FedEx.
  • Orders received before 5:30 PM EST ship the same business day.
  • Typical delivery time is 1–5 business days.

30-Day Return Policy

  • Returns accepted within 30 days of delivery.
  • Hydraulic steering components should be installed only after confirming correct fitment.
  • Items must be new, unused, and in original packaging.
  • Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

8M0155530, 880667, Pro Marine steering cylinder seal, Pro Marine Verado seal, Mercury steering cylinder seal, Mercury Verado steering seal, Mercury hydraulic steering seal, Verado cylinder seal, Verado steering ram seal, Mercury steering fluid seal, Mercury integrated steering seal, Mercury steering cylinder repair, Verado steering cylinder reseal

Item#:
880667
Cross Reference#:
8M0155530
880667
Manufacturer Item:
880667
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
7.95
Each

Ignition Distributor Cap Rotor

GM 4.3L V6 Vortec w/Flat Cap 2001-Up
Item#:
63090
Cross Reference#:
R103011
18-5246
3858977
3859019
8M0060495
8M0061335
8M0215003
8M0215004
8M6001106
8M6001222
884790
884792
888731
898253T22
898253T23
898253T28
898253T29
898253013
898253022
9-29420
Manufacturer Item:
888731
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
96.75
Each

Gasket Kit, Powerhead w/Seals

Mercury 75-115 DFI 1.5L 3cyl
Item#:
9855
Cross Reference#:
879855A04
Manufacturer Item:
879855A04
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
119.86
Each
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